FOOD & HEALTH SKEPTIC ARCHIVE
Posts by Dr. John Ray, monitoring food and health news -- with particular attention to fads, fallacies and the "obesity" war
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A major cause of increasing obesity is certainly the campaign against it -- as dieting usually makes people FATTER. If there were any sincerity to the obesity warriors, they would ban all diet advertising and otherwise shut up about it. Re-authorizing now-banned school playground activities and school outings would help too. But it is so much easier to blame obesity on the evil "multinationals" than it is to blame it on your own restrictions on the natural activities of kids
NOTE: "No trial has ever demonstrated benefits from reducing dietary saturated fat".
A brief summary of the last 50 years' of research into diet: Everything you can possibly eat or drink is both bad and good for you
"Let me have men about me that are fat... Yond Cassius has a lean and hungry look ... such men are dangerous." -- Shakespeare
These kids are all "obese" according to Britain's moronic National Health Service
30 June, 2013
Children who eat lots of chicken are less likely to develop bowel cancer later in life
And red meat did no harm!
At the end of the article below, the authors express some appropriate humility about the generalizability of their chicken findings. In a major departure from epidemiological convention, they allow that correlation might not be causation!
Teenagers who regularly eat chicken are less likely to develop bowel cancer when they get older, new research shows. Scientists found poultry reduced adolescents’ risk of a bowel tumour by around 20 per cent and cancer of the rectum by up to 50 per cent.
The research, by experts at Harvard University School of Public Health in Boston, U.S., shows chicken appears to reduce the development of adenomas, harmful growths which are a precursor to cancer.
The study is the first to show that bowel cancer risk later in life can be influenced by the type of meat eaten as a teenager.
Diets high in fat and red meat, as well as lack of exercise, are thought to be among the main risk factors.
Researchers wanted to see if meat consumption relatively early in life had any impact on cancer risk decades later. This is because the development of bowel cancer is a slow process that can take several decades.
They tracked nearly 20,000 women who took part in a long-running research project called the Nurses’ Health Study 2, which began back in the late nineties.
At the start of the study, all the women had given details of dietary habits during childhood and adolescence. They were then monitored to see how many over the following decade were diagnosed with adenomas.
The results, published online in the American Journal of Epidemiology, showed that women who ate the most chicken during their teenage years were the least likely to have the pre-cancerous growths.
However, the researchers also found those that ate the most red meat were no more likely to get cancer than those who consumed the least, while eating fish did not appear to have a protective effect.
Although the study was confined to women, it’s likely that the findings apply to both sexes.
Researchers admitted there is no obvious explanation for why poultry appears to have a protective effect and said the findings could be skewed by the fact they relied on women remembering what they had eaten years earlier.
In a report on their findings they said: ‘There is no well-established plausible mechanism to explain it.
But it is possible that poultry intake during adolescence is simply a marker of a healthy diet or lifestyle that may track through the course of life.’
Tofu rots your brain
Reasonable data below too -- thus giving the conclusions some weight
Brain Aging and Midlife Tofu Consumption
By Lon R. White et al.
Objective: To examine associations of midlife tofu consumption with brain function and structural changes in late life.
Methods: The design utilized surviving participants of a longitudinal study established in 1965 for research on heart disease, stroke, and cancer. Information on consumption of selected foods was available from standardized interviews conducted 1965–1967 and 1971–1974. A 4-level composite intake index defined “low-low” consumption as fewer than two servings of tofu per week in 1965 and no tofu in the prior week in 1971. Men who reported two or more servings per week at both interviews were defined as “high-high” consumers. Intermediate or less consistent “low” and “high” consumption levels were also defined. Cognitive functioning was tested at the 1991–1993 examination, when participants were aged 71 to 93 years (n=3734). Brain atrophy was assessed using neuroimage (n=574) and autopsy (n=290) information. Cognitive function data were also analyzed for wives of a sample of study participants (n=502) who had been living with the participants at the time of their dietary interviews.
Results: Poor cognitive test performance, enlargement of ventricles and low brain weight were each significantly and independently associated with higher midlife tofu consumption. A similar association of midlife tofu intake with poor late life cognitive test scores was also observed among wives of cohort members, using the husband’s answers to food frequency questions as proxy for the wife’s consumption. Statistically significant associations were consistently demonstrated in linear and logistic multivariate regression models. Odds ratios comparing endpoints among “high-high” with “low-low” consumers were mostly in the range of 1.6 to 2.0.
Conclusions: In this population, higher midlife tofu consumption was independently associated with indicators of cognitive impairment and brain atrophy in late life.
28 June, 2013
Food really is addictive?
I suppose anything you really like could be called addictive. I really liked my Meccano (erector) set when I was a kid. I spent hours with it. Was I addicted to it? Those who say so are just attempting to distort language for political purposes.
And rather than say that food mimics the effect of drugs, would it not be more accurate to say that drugs mimic the effect of food? Food came first
Food could be as addictive as class-A drug heroin and nicotine in cigarettes, claims a new study.
Researchers have found substance abuse and food with a high glycaemic index - such as white bread and potatoes - may trigger the same brain mechanism tied to addiction.
Eating highly processed carbohydrates can cause excess hunger and stimulate brain regions involved in reward and cravings, according to the study.
The findings suggest that limiting 'high-glycaemic index' foods could help obese people avoid overeating.
The study, published in the American Journal of Clinical Nutrition, investigated how food intake is regulated by dopamine-containing pleasure centres in the brain.
Study leader Dr David Ludwig, of Boston Children’s Hospital in the United States, said: 'Beyond reward and craving, this part of the brain is also linked to substance abuse and dependence, which raises the question as to whether certain foods might be addictive.'
To examine the link, researchers measured blood glucose levels and hunger, while also using MRI scanning to observe brain activity during the crucial four-hour period after a meal, which influences eating behaviour at the next meal.
Evaluating patients in such a time frame is one novel aspect of the study, whereas previous studies have evaluated patients with an MRI soon after eating.
Twelve overweight or obese men ate test meals designed as milkshakes with the same calories, taste and sweetness.
The two milkshakes were essentially the same; the only difference was that one contained rapidly digesting - high-glycaemic index - carbohydrates, and the other slowly digesting - low-glycaemic index - carbs.
After the participants consumed the high-glycaemic index milkshake, they experienced an initial surge in blood sugar levels, followed by sharp crash four hours later.
This decrease in blood glucose was associated with excessive hunger and intense activation of the nucleus accumbens, a critical brain region involved in addictive behaviour.
Previous studies of food addiction have compared patient reactions to drastically different types of foods, such as high-calorie cheesecake versus boiled vegetables.
Another novel aspect of the new study is how a specific dietary factor that is distinct from calories or sweetness, could alter brain function and promote overeating.
Dr Ludwig said: 'These findings suggest that limiting high-glycaemic index carbohydrates like white bread and potatoes could help obese individuals reduce cravings and control the urge to overeat.'
Though the concept of food addiction remains controversial, the findings suggest that more interventional and observational studies be done.
Dr Ludwig said additional research will hopefully inform clinicians about the subjective experience of food addiction, and how they can potentially treat obese patients and regulate their weight.
HRT does NOT affect a woman's memory or increase her risk of developing dementia
The rehabilitation of HRT goes on
Women taking hormone replacement therapy following the menopause are not at a higher risk of developing dementia, a study has claimed.
HRT, which is used to treat the symptoms of menopause, including hot flushes, has been previously linked with declining memory and a doubled risk of developing dementia.
Researchers followed a group of more than 1,300 women between the ages of 50 and 55 who were on HRT medication called conjugated equine oestrogens (CEOs).
The researchers, based at the Women's Health Centre of Excellence for Research at Wake Forest School of Medicine in Winston-Salem, North Carolina, gave one set of women placebos and one the HRT treatment, then studied the results after seven years.
They found no overall differences in the brain function scores between women taking the HRT treatment and the placebos, CBS reports.
Dr Mark Espeland, a professor of biostatistics, led the research, and said it proved giving the hormones at an earlier age of menopause could see more benefits than prescribing them later.
'Our findings provide reassurance that CEO-based therapies when administered to women earlier in the postmenopausal period do not seem to convey long-term adverse consequences for cognitive function.'
They did note some minor speech disturbances in some of the women taking CEOs longer-term. But they attributed that to 'chance' and reported that it was not statistically significant.
Around 1.5 million British women use HRT, which relieves symptoms of the menopause such as hot flushes and mood swings by replacing the body's declining supply of oestrogen.
Researchers had previously claimed the risk of suffering from mental decline could be doubled by taking hormone replacement therapy.
The warning came in 2003, from a study by scientists in the U.S. who sought to determine if healthy women should turn to HRT to combat ill-health in later life, not just menopausal symptoms.
Fewer than 3 per cent of women in Britain aged 65 and older are on the therapy.
The research was published in JAMA Internal Medicine.
27 June, 2013
Pesky news for parents... watching TV can actually IMPROVE your child's schoolwork
Is the batty Baroness Greenfield listening?
Parents have for years rationed the amount of television their children can watch in the belief that too much will scramble their offspring’s brains.
Now a study suggests the opposite is true – that children who are glued to the screen for hours a day can significantly outperform classmates who watch considerably less.
It also found that other family rules imposed by parents hoping to boost their children’s academic prowess, such as insisting on regular bed or meal times, make only a relatively small difference.
While TV has been consistently blamed for diminishing children’s brain power, University of London academics found those who watched three or more hours a day were three months ahead of those who watched less than an hour a day.
The report’s lead author Dr Alice Sullivan, senior academic at the university’s Institute of Education, admitted the results, particularly those regarding television, were ‘contrary to expectations’.
She added that the educational value of children’s television had been ‘underestimated’. ‘It may also help expose some children to a broader vocabulary than they get at home,’ Dr Sullivan said.
Their findings were part of an analysis that set out to examine claims made by politicians, including David Cameron, and others that parenting skills were more important than social background in determining how well children do at school and in later life.
It used test results for 11,000 British seven-year-olds tracked since birth as part of a long-term project called the Millennium Cohort Study.
In tests comparing youngsters of the same social class, regular meal times conferred only a six-week advantage in terms of reading and writing skills, while set bedtimes gave only a two-month head start.
Overall, the analysis, published in the journal Sociology, concluded ‘social class and in particular parents’ education were the dominant factors’ in determining how well children fared.
It found those with parents in stable, well-paid jobs were more than a year ahead than those whose parents work in unskilled or semi-skilled positions.
How popping aspirin can give some people asthma for life; Life-threatening allergies to antibiotics and general anaesthetics are also on the rise
On the day of her grandmother's funeral, Jacqui Sanders took an aspirin to cope with a painful headache. She had used the drug before, and after taking the pill she waited for her pounding head to abate.
Instead, ten minutes later she started to feel breathless. Initially, she blamed it on the stress of the day. However, it soon became clear it was not her emotions causing the problems, but an asthma attack. Jacqui had been diagnosed with a mild form of the condition a few years earlier, but was now experiencing a full-blown attack.
'I was rushed to my local surgery, where I was quickly given a nebuliser, but it was frightening,' says the 44-year-old mother-of-two from Ruislip, North London.
She'd previously suffered another severe attack when she had taken an aspirin. After the second attack, her GP warned she might be allergic to aspirin and advised her to avoid aspirin and ibuprofen, as people are often allergic to both.
Allergies to painkillers such as ibuprofen and aspirin are common, say experts, and can develop in adulthood, often among people who have taken these painkillers for years without any problems.
They're not the only drugs that can cause problems - allergies to antibiotics, which affect about 10 per cent of people, are also on the rise, as are reactions to general anaesthetics. The latter can be life-threatening.
'We see a lot of drug allergy patients and it's increased over recent years,' says Dr Pamela Ewan, consultant allergist from Addenbrooke's Hospital, Cambridge. 'They can come out of the blue. People have usually happily taken the drugs for years and then suddenly develop problems.'
She attributes the increase partly to greater awareness among GPs, but also to the rise in the number of pills we are popping throughout our life. This is a particular problem with antibiotics, as the risk of allergy increases with exposure - the more of the drug you take, the more you are likely to develop an allergy.
Dr Ewan says: 'There has been far too much misuse of antibiotics, with too many handed out by doctors. Not only does this lead to superbugs but it may have contributed to more people developing allergic reactions to them.'
The antibiotics she commonly sees reactions to are penicillin, erythromycin and cephalosporins. These are commonly used for chest, ear and throat infections, tonsillitis and sinusitis.
Allergies occur when the antibiotics send the immune system into overdrive, causing it to wrongly assume the antibiotics are a foreign invader. This triggers cells of the immune system called mast cells to release histamine. This chemical causes symptoms such as rashes, swelling of the face and airways, and breathing difficulties.
In most cases, antibiotic allergies trigger a rash, usually across the body. However, in severe cases they can trigger anaphylactic shock, a more severe reaction where the patient's airways can swell and they struggle to breathe; their blood pressure also drops dangerously low.
The body's reaction to ibuprofen and aspirin is slightly different, says Dr Ewan. 'Ibuprofen is a common allergy - we see a lot of it. This often causes facial swelling and breathing difficulties, usually starting within a few minutes to an hour later, but is unlikely to cause a rash.'
Doctors are unsure exactly how ibuprofen triggers a reaction. The painkiller, together with aspirin and the painkiller diclofenac, are part of a group of drugs called non-steroidal anti-inflammatory drugs (NSAIDs).
In people who have a reaction, the drugs seem to trigger the release of inflammatory molecules called leukotriene, which in high levels cause swelling.
It's not clear if taking lots of ibuprofen throughout life makes an allergy more likely, but 'you'll be unlikely to get ibuprofen allergy the first time you take it - most people who develop an allergy have taken it a few times before,' says Dr Ewan.
Although the immune system can react to NSAIDs, patients can often continue to take other painkillers such as paracetamol or codeine without any problems, and many can also take another form of NSAIDs called COX-2 inhibitors, which work differently in the body.
However, while these patients are able to take other painkillers, some can be with left with lifelong asthma, triggered after their first allergic reaction. This is called aspirin-exacerbated respiratory disease, and affects about 10 per cent of the country's 5.4?million asthmatics - half never had asthma before.
'It tends to affect more women than men, suggesting hormones are playing a role, and around half of sufferers report they had a cold beforehand,' says Dr Sophie Farooque, allergist from Imperial College Healthcare NHS Trust.
This raises the possibility that a cold or flu is somehow knocking the immune system out of kilter, causing it to over-react when it next encounters aspirin or ibuprofen.
Doctors are also seeing a rise in allergies to general anaesthetics. These are rapid and life-threatening - within minutes of delivering a general anaesthetic a patient often goes into anaphylactic shock.
Dr Ewan says: 'Once the anaesthetic is administered, a patient's blood pressure drops through the floor and their heart may even stop.'
Although cases are still rare, the rise may well be due to the more complex anaesthetics that medics use in surgery. According to the Royal College of Anaesthetists, the NHS gives three million general anaesthetics a year.
'General anaesthetics are more complex than they were 20 years ago - people used to be given one or two drugs but now they are given a cocktail or up to seven drugs, including antibiotics, painkillers and anti-sickness drugs,' explains Dr Ewan.
Studies suggest only a third of such allergies are due to the anaesthetic drug itself - two-thirds are due to the other drugs. And similar to other drug allergies, people suddenly develop an allergy to general anaesthetic.
Michele Adams is all too familiar with this situation. The 46-year-old from Bushey, Hertfordshire, had a trouble-free general anaesthetic eight years ago to have a mole removed.
However, when she had a general anaesthetic last March for a hysteroscopy, where surgeons use a thin telescope to examine the lining of the womb, it was a different story.
'I was meant to be under for an hour, but four hours later they were still trying to bring me round. I had an anaphylactic reaction the minute the anaesthetic went into my arm. 'My blood pressure plummeted, I went blue and nearly had a cardiac arrest.
'I was told it was a close call,' says the married mother-of-two, who has her own recruitment firm. Michele spent the night in hospital and two weeks at home recovering.
She says: 'I felt exhausted. I recognised the feeling as five years earlier I'd suffered an anaphylactic shock to the antibiotic trimethoprim, which I took for a urine infection. Then eight months after I had a similar reaction to cough medicine. I'd never suffered problems before.'
Unfortunately, there is no way of predicting who will react, but Dr Farooque adds that allergists do an assessment of cases to identify the medication that triggered the reaction to ensure it doesn't happen again. In Michele's case, it was the muscle relaxant given with the general anaesthetic.
Dr Farooque says there is a shortage of drug-allergy clinics where people can have their allergies properly diagnosed and other safe drugs suggested.
And without specialist help, patients often don't realise what drugs are safe for them to take.
To lower the risk of developing allergies in the first place, Dr Ewan advises: 'Don't take drugs unless you are sure you need them.'
Michele adds: 'I don't even touch vitamins now.'
26 June, 2013
Breast is best for getting ahead (?)
Naive rubbish. High IQ mothers are most likely to breastfeed and it is the high IQ that they pass on which advantages their children
People breastfed as infants have a 24 percent better chance than their formula-fed counterparts of climbing the social ladder, said a study Tuesday.
Conversely, being fed mothers' milk as a baby also reduced one's chances of social demotion later in life by as much as 20 percent, said the findings published in the journal Archives of Disease in Childhood.
"Our study adds to evidence on the health benefits of breast feeding by showing that there may be lifelong social benefits," wrote the British research team.
The researchers looked at data on 17,419 people born in Britain in 1958 and another 16,771 born in 1970 -- comparing their social class at the age of 10 or 11 to that aged 33/34, and whether or not they had been breastfed.
Social class was categorised on a four-point scale ranging from unskilled or semi-skilled to professional or managerial.
In the 1958 group, 68 percent had been breastfed compared with only 36 percent in the 1970 group, said the study, which claims to be the largest yet to probe the relationship between breastfeeding and social mobility.
The researchers gathered data during regular followups every few years and took into account a range of other potential factors such as brain development and emotional stress levels.
"Intellect and stress accounted for around a third (36%) of the total impact of breastfeeding: breastfeeding enhances brain development, which boosts intellect, which in turn increases upwards social mobility. Breastfed children also showed fewer signs of stress," said a statement.
The authors said breast milk contained so-called long-chain polyunsaturated fatty acids or LCPUFA's, which were essential for brain development.
Previous studies, however, have suggested that LCPUFA's alone may not improve cognitive growth The team said it was impossible to tell which was more beneficial to the child: the nutrients found in breast milk, the skin-go-skin contact and bonding between a nursing mother and her infant, or perhaps a combination of the two.
Further research was needed, they said, to determine whether mothers who fed their infants formula could aid their long-term development by mimicking the skin contact between breastfeeding women and their offspring.
The 'peanut patch' that could save lives: New plaster reduces severity of allergic reactions in children
Just another version of systematic desensitization
A newly developed skin patch could help children who have a deadly peanut allergy. New figures show youngsters who once faced the threat of a fatal reaction from the tiniest amounts of peanut protein can snack on the nuts after wearing the patch for a year.
The stick-on patch, which could help thousands of children in the UK, is packed with tiny traces of peanut protein. Worn on the arm or back, it allows minute amounts of the protein to gradually seep through the top layers of the skin.
It then comes into contact with immune system cells which would normally trigger a life-threatening overreaction.
But the proteins are in such tiny quantities that the immune cells slowly get used to their presence, learning to recognise peanuts so that they are no longer a threat.
As a result, the body’s defences stop overreacting when they come into contact with peanuts.
The patch, about the size of ten pence piece, is undergoing trials involving more than 200 patients with severe peanut allergies.
The first results from one of the trials, involving children aged five to 17, show that many are able to build up tolerance to peanuts after wearing one for 12 to 18 months.
The volunteers wear a peanut patch or an identical dummy one, changing it for a new one every day.
After 12 months, at least 20 per cent of the children were consuming more than ten times the amount of peanut protein they were able to tolerate at the start of the study. By 18 months, the number had risen to 40 per cent.
This equated to about 1.5 peanuts in children who, before the treatment, were at risk of life-threatening anaphylactic shock from the smallest amount of peanut dust – prior to the study some were at risk of death if they were in the same room as someone who was eating peanuts.
The breakthrough patch, called Viaskin Peanut, does not cause anaphylactic shock because the proteins stay in the skin and do not penetrate as far as the bloodstream.
Researcher Professor Christophe Dupont, from the Necker Hospital in Paris, said: ‘The change in peanut consumption represents an important improvement in the quality of life of these patients.’
25 June, 2013
Antibiotics could cure 40% of chronic back pain patients
After the discovery of helicobacter pylori, medical researchers went all out loking for bacterial causes of everything -- without much result. The remarkable finding below might revitalize that focus
Surgeons in the UK and elsewhere are reviewing how they treat patients with chronic back pain after scientists discovered that many of the worst cases were due to bacterial infections.
The shock finding means that scores of patients with unrelenting lower back pain will no longer face major operations but can instead be cured with courses of antibiotics costing around £114.
One of the UK's most eminent spinal surgeons said the discovery was the greatest he had witnessed in his professional life, and that its impact on medicine was worthy of a Nobel prize.
"This is vast. We are talking about probably half of all spinal surgery for back pain being replaced by taking antibiotics," said Peter Hamlyn, a consultant neurological and spinal surgeon at University College London hospital.
Hamlyn recently operated on rugby player Tom Croft, who was called up for the British and Irish Lions summer tour last month after missing most of the season with a broken neck.
Specialists who deal with back pain have long known that infections are sometimes to blame, but these cases were thought to be exceptional. That thinking has been overturned by scientists at the University of Southern Denmark who found that 20% to 40% of chronic lower back pain was caused by bacterial infections.
In Britain today, around 4 million people can expect to suffer from chronic lower back pain at some point in their lives. The latest work suggests that more than half a million of them would benefit from antibiotics.
"This will not help people with normal back pain, those with acute, or sub-acute pain – only those with chronic lower back pain," Dr Hanne Albert, of the Danish research team, told the Guardian. "These are people who live a life on the edge because they are so handicapped with pain. We are returning them to a form of normality they would never have expected."
Claus Manniche, a senior researcher in the group, said the discovery was the culmination of 10 years of hard work. "It's been tough. There have been ups and downs. This is one those questions that a lot of our colleagues did not understand at the beginning. To find bacteria really confronts all we have thought up to this date as back pain researchers," he said.
The Danish team describe their work in two papers published in the European Spine Journal. In the first report, they explain how bacterial infections inside slipped discs can cause painful inflammation and tiny fractures in the surrounding vertebrae.
Working with doctors in Birmingham, the Danish team examined tissue removed from patients for signs of infection. Nearly half tested positive, and of these, more than 80% carried bugs called Propionibacterium acnes.
The microbes are better known for causing acne. They lurk around hair roots and in the crevices in our teeth, but can get into the bloodstream during tooth brushing. Normally they cause no harm, but the situation may change when a person suffers a slipped disc. To heal the damage, the body grows small blood vessels into the disc. Rather than helping, though, they ferry bacteria inside, where they grow and cause serious inflammation and damage to neighbouring vertebrae that shows up on an MRI scan.
In the second paper, the scientists proved they could cure chronic back pain with a 100-day course of antibiotics. In a randomised trial, the drugs reduced pain in 80% of patients who had suffered for more than six months and had signs of damaged vertebra under MRI scans.
Albert stressed that antibiotics would not work for all back pain. Over-use of the drugs could lead to more antibiotic-resistant bacteria, which are already a major problem in hospitals. But she also warned that many patients will be having ineffective surgery instead of antibiotics that could alleviate their pain.
"We have to spread the word to the public, and to educate the clinicians, so the right people get the right treatment, and in five years' time are not having unnecessary surgery," she said.
Hamlyn said future research should aim to increase the number of patients that respond to antibiotics, and speed up the time it takes them to feel an improvement, perhaps by using more targeted drugs.
The NHS spends £480m on spinal surgery each year, the majority of which is for back pain. A minor operation can fix a slipped disc, which happens when one of the soft cushions of tissue between the bones in the spine pops out and presses on nearby nerves. The surgeons simply cut off the protruding part of the disc. But patients who suffer pain all day and night can be offered major operations to fuse damaged vertebrae or have artificial discs implanted.
"It may be that we can save £250m from the NHS budget by doing away with unnecessary operations. The price of the antibiotic treatment is only £114. It is spectacularly different to surgery. I genuinely believe they deserve a Nobel prize," said Hamlyn. Other spinal surgeons have met Albert and are reviewing the procedures they offer for patients.
Are superfoods that super?
The alleged benefits of so-called superfoods is often based on flimsy research
I’m not happy. Last week I discovered I’ve been wasting my time every Sunday for most of my adult life. I refer to my weekly meal of mackerel, which I force myself to eat despite the repulsive taste and texture, and the smell that lingers for days after. Not only do I hate the slimy fish, but twice I’ve nearly died (or at least it felt that way) when a bone has stuck in my throat.
So new draft guidance published by the National Institute of Health and Care Excellence (Nice) suggesting that the impact of an oily fish diet in preventing heart attacks or strokes "could be minimal" is far from welcome. Minimal? I’ve been missing out on a lovely, wholesome fry up – my preferred choice, naturally – for a decade or more because I, and millions of others, believed that oily fish was key to health and longevity.
Like any good psychiatrist, I blame my mother. When I was a child, she bought a book called Superfoods and, in her determination to guarantee my sister and I would live long enough to look after her in her old age, it became her bible. Each time we found an unusual or exotic foodstuff on our plate, she would take great pleasure in informing us it was a "superfood" and would help ward off diabetes or cancer or evil or whatever it was she’d read about.
We all know that certain foods are better for us than others, but the idea that some possess almost mystical properties is very seductive.
Suppliers and manufacturers exploit a belief in some elixir of health and market, and price accordingly, or promote in various ingenious ways even more "super" versions of superfoods.
Despite six years at medical school and well-developed cynicism when it comes to food fadism, I admit I have bought into the superfoods phenomenon. In addition to oily fish, I make sure I consume pomegranates, blueberries, kiwi fruit, broccoli and brazil nuts regularly, even though I know that if it’s not deep fried, coated in lard or caked with sugar, pretty much any vegetable or fruit is good for you.
The specific marketing of goods as "superfoods" is prohibited in the European Union unless backed by scientific evidence. But research into the benefits of many of these foods is, at best, provisional and based on small preliminary studies that are open to multiple factors that can skew the results.
In 2011, the NHS looked at these wonder foods and examined some of the claims made for them. The findings were critical not just of the media’s sensationalist reporting of the research, but also of the research itself. They pointed out that the plethora of contradictory reports was such that "often the same food is declared healthy one day and harmful the next". (I’m still not sure if red wine and chocolate will save my life or kill me.)
There are many reasons why the research is often not as promising as it first appears. One problem is confounding factors – this is when a factor other than the one being investigated is responsible for the effects. A study of alcohol consumption by Dutch men over 40 years, for example, found that those who consumed an average of half a glass of wine a day lived five years longer than those who didn’t. While the researchers took into account some factors that might explain the disparity – such as smoking and weight – they didn’t consider exercise. So there’s no way of knowing if the results were down to the wine, or because the men who drank half a glass a day took more exercise, or a combination of both.
Another problem is that often the researchers use surrogate end points, in which the studies measure outcomes not directly related to people’s health. One widely reported study that claimed that eating oily fish could improve people’s memory compared changes in the blood flow to the brain in those who ate the fish and those who did not – but it didn’t actually test memory, which is the only way to say for sure that oily fish bestows that benefit.
Also, many reported studies are performed on animals or in vitro in laboratories, making any findings impossible to extrapolate in a meaningful way to the average person.
And there are other factors that can affect the reliability of research, such as bias and conflicts of interest over who funds the study and what they want from it. In short, few claims that a food has a miracle benefit live up to scrutiny.
So my advice is this: ensure you have a balanced, sensible diet and don’t eat too much sugar, salt or fat. That’s pretty much it. While it might be tempting to believe in miracles, the reality is more prosaic.
The good news for me is that for the first time in years, I can now look forward to a decent Sunday brunch.
24 June, 2013
Could being overweight cause DEAFNESS? Obese teenagers are 50% more likely to suffer with hearing problems
Fat is predominantly working class so this is just another instance of poor health among the poor
Obese teenagers are more likely to suffer hearing loss than their slim peers, according to a new study.
Scientists found that obese adolescents suffered increased hearing loss across all frequencies and were almost twice as likely to develop one-sided, low-frequency hearing loss.
'This is the first paper to show that obesity is associated with hearing loss in adolescents,' said study author Professor Anil Lalwani of the Department of Otolaryngology/Head & Neck Surgery at the Columbia University Medical Center.
The study found that obesity in adolescents is associated with sensorineural hearing loss across all frequencies (the frequency range that can be heard by humans). Sensorineural hearing loss is caused by damage to the inner ear hair cells.
But the the highest rates were for low-frequency hearing loss—15 per cent of obese adolescents compared with 8 per cent of non-obese adolescents developed the problem.
People with low-frequency hearing loss cannot hear sounds in frequencies 2,000 Hz and below. In most cases they can still understand human speech well, but may have difficulty hearing in groups or in noisy places.
'These results have several important public health implications,' said Dr Lalwani.
'Because previous research found that 80 per cent of adolescents with hearing loss were unaware of having hearing difficulty, adolescents with obesity should receive regular hearing screening so they can be treated appropriately to avoid cognitive and behavioural issues.'
Although the overall hearing loss among obese adolescents was relatively mild, the almost 2-fold increase in the odds of unilateral low-frequency hearing loss is particularly worrisome.
It suggests early, and possibly ongoing, injury to the inner ear that could progress as the obese adolescent becomes an obese adult.
Future research is needed on the dangerous consequences of this early hearing loss on social development, academic performance, and behavioural and cognitive function.
'Furthermore, hearing loss should be added to the growing list of the negative health consequences of obesity that affect both children and adults—adding to the impetus to reduce obesity among people of all ages,' said Dr Lalwani.
The study analysed data from nearly 1,500 adolescents from the National Health and Nutrition Examination Survey—a large, nationally representative sample of adolescents between the ages of 12 and 19, conducted from 2005 to 2006 by the National Center for Health Statistics of the Centers for Disease Control and Prevention.
Participants were interviewed at home, taking into account family medical history, current medical conditions, medication use, household smokers, socioeconomic and demographic factors, and noise-exposure history.
Dr. Lalwani and his colleagues speculate that obesity may directly or indirectly lead to hearing loss.
Although additional research is needed to determine the mechanisms involved, they theorise that obesity-induced inflammation may contribute to hearing loss.
Low plasma levels of the anti-inflammatory protein adiponectin, which is secreted from adipose tissue, have been found in obese children, and low levels in obese adults have been associated with high-frequency hearing loss, which affects a person's ability to understand speech.
Obesity also may also contribute to hearing loss as a result of associated problems including type 2 diabetes, cardiovascular disease, and high cholesterol - all of which have been reported to be associated with deafness.
Saliva Protects Elderly People from Influenza A Virus
Saliva is not normally a topic of polite conversation, but it may be the key to explaining the age and sex bias exhibited by influenza A and other diseases.
“Saliva does more than start the process of digesting certain foods. Saliva also contains germ-fighting proteins that are a first-line defense against infections,” said Dr Qin and colleagues, who report their results in a paper published in the Journal of Proteome Research.
Researchers already knew that levels of certain glycoproteins – proteins with a sugar coating that combat disease-causing microbes – differ with age.
Dr Qin and colleagues took a closer look at how those differences affected vulnerability to influenza A virus.
They collected 180 samples of saliva from men and women of various ages and then assessed the inhibiting and neutralizing activity of saliva against two strains of influenza A (H9N2) virus.
The findings show that glycoproteins in saliva of people age 65 and over were more efficient in binding to influenza than those in children and young adults.
“Seniors, who fought off the bird flu better than the younger groups, might thank their saliva.”
“The research may provide useful information to help understand some age-related diseases and physiological phenomenon specific to women or men, and inspire new ideas for prevention and diagnosis of the diseases by considering the individual conditions based primarily on the salivary analysis,” the researchers said.
23 June, 2013
What you ate when you were THREE determines your risk of heart disease later in life
Correlational rubbish. An association between REPORTED diet and cholesterol. Big deal. No lifespan data or disease incidence data at all
A child's diet at the age of three could determine its risk of heart disease as an adult, researchers say. A study found that the effects of unhealthy eating begin at an early age, with the tell-tale signs of cholesterol noticeable in children aged between three and five.
This suggests interventions to protect health could start much earlier, say the researchers, from St Michael's Hospital in Toronto.
They looked at 1,076 preschool children and studied the link between eating habits and serum levels of non-high-density lipoprotein (HDL) cholesterol - a marker of later cardiovascular risk.
'Our results show that associations between eating behaviours and cardiovascular risk appear early in life and may be a potential target for early intervention,' said Dr Navindra Persaud.
'Eating behaviours as reported by parents were positively associated with serum non-HDL cholesterol levels in children aged three to five.
'The association between the eating behaviours subscore and serum non-HDL cholesterol persisted after controlling for age, sex, birth weight, parental BMI, gestational diabetes and parental ethnicity.'
She said that the findings suggested earlier intervention could be called for. She said: 'Our results support previous arguments for interventions aimed at improving the eating behaviours of preschool-aged children.
'To do so, evidence suggests promoting responsive feeding, where adults provide appropriate access to healthy foods and children use internal cues (not parent-directed cues or cues from the television) to determine the timing, pace and amount they consume.'
The findings were published in the Canadian Medical Association Journal.
'Don't take vitamin pills': U.S. doctor warns that some supplements could harm health
Did Steve Jobs die of his "alternative" beliefs?
A U.S. doctor is has warned people against taking health supplements, saying they could pose a risk to health.
Dr Paul Offit, who has written a book called 'Do You Believe In Magic? The Sense and Nonsense of Alternative Medicine', said that very few alternative health supplements are of any benefit and could in fact carry health risks.
He added that people often believe that supplements are harmless but that this simply isn't true - particularly in the case of super-strength supplements which are becoming increasingly popular.
'When you take large quantities of vitamins - 5-fold, 10-fold - greater than the [recommended daily allowance], I think the data is clear - it increases your chances of heart disease, cancer and can shorten your life,' said the doctor in an interview with CBS This Morning.
The doctor, who is based at the Children's Hospital of Philadelphia, went on to explain that he had recently seen a television advertisement that told viewers you would need to drink two gallons of orange juice to get as much Vitamin C as was in the supplement being promoted.
He said that there's probably a good reason why nature doesn't provide that much Vitamin C ni one hit.
The UK market for vitamins and supplements was estimated to be worth £385million last year, up 2.7 per cent on the previous year.
Dr Offit said that certain supplements such as folic acid can be very useful however
Dr Offit said that certain supplements such as folic acid can be very useful however
Dr Offit went on to explain that he didn't think that multivitamins would do any harm however, although it is not really known whether or not they actually do any good.
When asked if he thought it was worth taking any nutritional pills, he said that there were four cases.
He recommended pregnant mothers to take folic acid to prevent babies developing spina bifida, a condition that causes the spine to become deformed.
He said that Vitamin D was important for babies, particularly in those who are exclusively breastfed and do not get much exposure to sunlight.
Elderly women should take Vitamin D and calcium to help prevent bones thinning and he concluded that omega-3 fatty acid oils might be beneficial to heart health, but that current studies are inconclusive.
Dr Offit also blasted the term 'alternative medicine and said: 'There's no such thing as alternative medicine - if it works it, is medicine. If it doesn't work it's not an alternative'
When asked what his views on alternative therapies such as acupuncture were, he said that it could be helpful but not because the needles were inserted into the skin. he added that the 'ancient Chinese didn't know anything about the human anatomy'.
Finally he said that Apple found Steve Jobs might be alive today if he has sought expert medical help sooner.
He explained that the type of pancreatic cancer Jobs had - a neuroendocrine tumour - is cured in 95 per cent of patients by undergoing surgery, but that his choice of esoteric therapies including bowel cleanses and acupuncture ultimately cost him his life.
21 June, 2013
Risk of autism is up to 50% higher in children exposed to traffic fumes and air pollution
Here we go again: People living in unprestigious locations -- such as near traffic -- will be poorer and less healthy for that reason alone. And depending on who they marry and all sorts of other things, some nurses will be poorer than others
Researchers from the Harvard School of Public Health found the risk was doubled for women living in the most polluted locations.
'Our findings raise concerns since, depending on the pollutant, 20 per cent to 60 per cent of the women in our study lived in areas where risk of autism was elevated,' said lead scientist Dr Andrea Roberts.
Autism, a developmental disorder that interferes with social and communication skills, affects around 500,000 people in the UK.
It covers a 'spectrum' of conditions that may be mild or very severe, requiring round-the-clock care.
For the new study, researchers identified 325 women who had a child with autism and 22,000 who had children without the disorder.
Data collected by the U.S. Environmental Protection Agency and published in the journal Environmental Health Perspectives was used to assess pollution exposure in the areas where the women lived.
The scientists found a clear link between being pregnant somewhere with high levels of pollution and having an autistic child.
Diesel and mercury pollution showed the strongest link.
Women living in the top fifth of locations with the highest levels of these pollutants were twice as likely to give birth to a child with autism as those in areas with the lowest levels.
Other types of air pollution, including lead, manganese, methylene chloride and combined metals, had weaker associations with autism risk.
Women with the highest levels of exposure to these substances were about 50 per cent more likely to have a child who develops autism.
Most pollutants were more strongly associated with autism in boys than in girls.
Boys are in any case much more likely to have the disorder. The findings form part of the Nurse's Health Study II, a major U.S. investigation of environmental factors behind disease in a large group of more than 116,000 female nurses.
Women living in the top fifth of locations with the highest levels of pollutants were twice as likely to give birth to a child with autism as those in areas with the lowest levels
Senior author Dr Mark Weisskopf, also from Harvard, said: 'Our results suggest that new studies should begin the process of measuring metals and other pollutants in the blood of pregnant women or newborn children to provide stronger evidence that specific pollutants increase risk of autism.
'A better understanding of this can help to develop interventions to reduce pregnant women's exposure to these pollutants.'
Air pollutants contain many toxins that are known to affect neurological function and foetal development.
The researchers wrote: 'To our knowledge, our study is the first to examine the association between air pollution and ASD (autism spectrum disorder) across the United States..
'We observed significant positive linear trends between pollutant concentration and ASD, for diesel particulate matter, lead, manganese, methylene chloride, mercury and nickel.'
Beware the pretense of science
Donald J. Boudreaux comments on the FDA and other regulators from first principles
Judging from statements that regularly issue from politicians and the punditry — and from ivory-tower sages — you'd think that questions about what outcomes the economy “should” produce typically have answers that are objective, correct and specific. “Is this new drug safe?” “Is that amount of pollution too high?” “Are wages for those workers too low?” “What's the minimum number of days of paid vacation that workers should get annually?”
In response to such questions, the moralist within each of us demands specific answers: “Yes!” “No!” “Yes!” “Fourteen days!” It's satisfying to distinguish right from wrong, good from bad, saints from sinners, objectively correct answers from objectively incorrect ones.
But human nature makes the demand for such answers futile in many cases.
One reason is that each of us — as a worker, consumer, entrepreneur, investor, homeowner, voter, concerned citizen — is different from others of us. There is no objectively correct minimum number of days of paid vacation annually for workers as a group. Suppose I have a lower preference for leisure than you do. My preference cannot be projected onto you; it's just my preference. But because of my particular preference for little leisure, I'm more likely than are you to find and not to quit a job that offers fewer vacation days than your job offers.
Likewise, there's no objective yes-or-no answer to the question “Is this drug safe?” Your tolerance for risk might be higher than mine, and so you — unlike me — would prefer to take a certain drug rather than do without it. Your preference is neither right nor wrong; it's just your preference.
In both of the above examples — only two of countless ones — government-imposed standards cannot possibly be objectively correct. If government mandates that every worker get at least two weeks of paid vacation annually, the government will make those workers who prefer less leisure worse off. Forced to raise the amount of worker pay dispensed in the form of paid vacations, employers will lower the amount of worker pay dispensed in other forms such as cash or employer contributions to employee pensions. Such a regulation will make people who attach little value to leisure worse off.
The same holds true for drugs. Because no drug is completely risk-free, and because different people have different tolerances for risk, there's absolutely no scientifically objective way for the FDA to determine if a new drug is objectively too risky or not. That question is one of personal preferences and not one of science. And that question isn't miraculously transformed into a scientific question by government charging teams of scientists to assess whether this or that drug is “too risky.”
The pretense of science is not science. If government officials truly wish to be scientifically driven, they would allow each of us adults to choose which drugs we wish to take, regardless of the objective likelihood that someone will die or be seriously injured if he or she chooses to be treated with some drug.
Put differently, the scientifically correct level of riskiness of drugs for me is whatever level of riskiness I choose to tolerate. I — not some third party, not even one with an M.D. and who is appointed by government — am the only person on Earth capable of knowing the truth about what is, for me, the appropriate level of riskiness of drugs. Ditto for you.
20 June, 2013
Home Births May Be Safer Than Hospital Births
This may simply show that it is mainly very healthy women who choose homebirth
A new study has found that mothers experiencing low-risk pregnancies and who are planning home births may have an overall lower risk of birth complications than those who plan their births in hospitals.
LiveScience is reporting that just 1 in 1,000 of the mothers monitored for the study suffered from severe complications during their home births, as opposed to 2.3 in every 1,000 who gave birth in a hospital.
The study, conducted by researchers in the Netherlands, additionally noted a marked decrease in incidents of postpartum hemorrhage in mothers who gave birth at home – 19.6 out of 1,000 compared to 37.6 out of 1,000 respectively.
A reported 146,000 women took part in the study. Of those, 92,333 were said to be giving birth at home, while 54,419 chose the option of giving birth in a hospital.
Researchers told LiveScience that their findings likely only apply to regions where midwives are fully qualified to assist in a home birth.
They added to the science news website that the dearth of severe complications in planned home births should not lead to a general lack of concern surrounding home births for families weighing their options, as “every avoidable adverse maternal outcome is one too many.”
According to the Centers for Disease Control in Prevention in Atlanta, the amount of home births in the United States went up last decade.
“Home births are still rare in the United States, comprising less than 1 percent of births, however they have been increasing since 2004,” they noted on their official website.
How a cup of hot chocolate before bedtime could PREVENT diabetes -- if you are a mouse
Amazing what mice get up to these days
Forget everything you've been told about hot chocolate being an indulgence: a cup before bedtime could fend off diabetes, a study has found.
Mice fed a high fat diet that causes type 2 diabetes - the obesity-related form of the condition - suffered less inflammation when given cocoa powder as well.
Researchers believe their findings, published by the European Journal of Nutrition, may apply to humans.
Dark chocolate is rich in flavanols, plant chemicals that boost blood flow by widening vessels. They have previously been linked to a host of health benefits.
In the study the mice ate the human equivalent of 10 tablespoons of cocoa powder, about four or five cups of hot cocoa, during a ten week period.
Professor Joshua Lambert said: 'What surprised me was the magnitude of the effect. There was not as big of an effect on the body weight as we expected, but I was surprised at the dramatic reduction of inflammation and fatty liver disease.'
Several indicators of inflammation, which causes type 2 diabetes by prompting insulin resistance, were much lower in the mice fed the cocoa, and almost identical to a control group that just received low fat foods.
For example, they had about 27 per cent less insulin in their plasma, high levels of which suggest a patient may have diabetes, than those on the high fat diet without the supplement.
The cocoa powder also reduced amounts of harmful liver fats called triglycerides by about a third. Too much of these are a sign of fatty liver disease and are related to inflammation and diabetes.
Prof Lambert, of Pennsylvania State University, said the mice also saw a slight but significant drop in their rate of body weight gain.
Cocoa has been used in a medicinal capacity for more than two thousand years.
The Mayans and Aztecs civilisations were convinced it relieved a host of ailments including fever, heart pain and bowel complaints.
Although generally thought of in the modern world as an indulgent food, there is growing evidence to suggest these ancient civilisations were onto something.
In recent years scientists have established regular consumption of flavonoid rich fruits and vegetables reduces the risk of cancer, stroke and heart disease.
Now the biological activities of cocoa flavonoids are being associated with combating inflammation and impaired immune function.
Prof Lambert said he looked at cocoa because it contains a lot of flavonals, like green tea and wine whose health benefits have been studied for a long time.
Cocoa, although commonly consumed in chocolate, actually has low calorie and fat content, and is high in fibre.
Prof Lambert added: 'Most obesity researchers tend to steer clear of chocolate because it is high in fat, high in sugar and is usually considered an indulgence. However, cocoa powder is low in fat and low in sugar.'
He expects future research will follow to better identify why cocoa powder is effective at treating inflammation, as well as determine if the food works just as well in humans.
19 June, 2013
IQ link with baby weight gain, University of Adelaide research shows
Consistent with the view that high IQ is just one aspect of generally superior biological fitness
A CHILD’S IQ is linked to weight gain during their first month of life, new University of Adelaide research shows.
The researchers found babies who put on 40 per cent of their birthweight within the first four weeks had an IQ 1.5 points higher by the time they were six years old, when compared to those who put on just 15 per cent of their birthweight in the same period.
Lead author of the study, public health researcher Dr Lisa Smithers, said the study was the first of its kind to focus on IQ benefits of rapid weight gain in the first month of life for healthy newborns.
“Those children who gained the most weight scored especially high on verbal IQ at age 6. This may be because the neural structures for verbal IQ develop earlier in life, which means rapid weight gain during that neonatal period could be having a direct cognitive benefit for the child,” she said.
The researchers analysed data from nearly 14,000 children who were born full-term.
The study also found infants with the biggest growth in head circumference also had the highest IQ.
“Head circumference is an indicator of brain volume, so a greater increase in head circumference in a newborn suggests more rapid brain growth,” Dr Smithers said.
But, she warned the study should not be seen as a reason to overfeed babies.
“We don’t want to send the message that parents should overfeed their baby to get a higher IQ,” she said.
“Babies should never be overfed, or force fed, but fed on demand which is consistent with the advice in our national guidelines.”
She also warned overfeeding could lead to other health problems such as obesity.
Dr Smithers said a 1.5 point increase in IQ was more important on a population level because you would not be able to tell if an individual child had an IQ 1.5 points higher than another.
Instead, she said the findings indicated the importance of identifying and managing any early feeding and growth issues.
“The take home message from this is that parents need to get help if they have any concerns about their baby’s growth.”
The study was published today in the international journal Pediatrics.
Britons consume fewer calories a day than 30 years ago... but are fatter
Suggesting that reduced exercise is the key factor in recent average weight gain
Researchers found that an average person eats 600 fewer calories each day than 30 years ago – a 20 per cent drop – but weighs 30lb more.
While snacks, sweets and takeaways have been ditched in favour of healthier options, the main cause of obesity is likely to be a decline in physical activity, it is claimed.
The 20 per cent drop in daily calorie intake is the equivalent of a burger and chips from a fast food restaurant or three pints of Guinness.
But the weight gain cannot be fully explained by lazy Brits adopting a couch potato lifestyle, said the five-year study by the Institute of Fiscal Studies.
Instead, it shows that as Britons get older they find it harder to keep their weight down.
This suggests adults become more susceptible as they get older to the effects of some sugars and fats in modern food, says the report.
The full study is to be published later this summer but details which have emerged show that the average adult Briton has cut down calories intake by around 600 calories a day.
This is almost entirely down to better food and drink habits in the home because the amount of calories consumed outside the home is up by 15 per cent over the same period.
At home, though, Britons today are having cereal for breakfast rather than fried food, using semi-skimmed milk, and eating more fish and less red meat. They are also drinking less alcohol.
However, outside the home they are eating and drinking more high calorie food, from burgers to lunchtime sandwiches and coffee shop lattes.
Added to this, an adult today is more likely to have a desk job during the day and more likely to spend time in front of a screen when home in the evening.
The average adult is putting on weight at an average of 0.25kg - just over half a pound - a year, said report author Professor Rachel Griffiths of the IFS.
But it means that a man in his twenties weighs around 7kg - 15lbs - more today than a man in his twenties did three decades ago.
And someone in their 50s weighs a staggering 14kg - 30lbs - more today than someone of the same age 30 years ago.
Professor Griffiths told industry journal The Grocer: ‘The drop in calories consumed would have been expected to have caused a weight loss of 1kg per year over the period.’
She said the link between the rise in obesity and the increased sugar in some foods could be behind the disparity in the figures.
She added: ‘We are looking at why certain age groups and people seem to be far more susceptible to weight gain.’
18 June, 2013
Diabetes rate soaring among British under-40s: Number being diagnosed with type 2 up six-fold in 20 years
These correlations are entirely to be expected. Diabetics are big eaters and drinkers so will tend to get fat. Diabetics are however only a small proportion of overweight people so to say that obesity causes diabetes is very poor reasoning. It would be much better founded to say that diabetes cause obesity.
There are admissions below that the rise in diabetes may be artifactual, with doctors being REWARDED for diagnosing it!
Soaring numbers of under-40s are developing a type of diabetes linked to obesity and traditionally seen as a disease of the elderly. A study of GPs' records found the number of young people diagnosed with type 2 diabetes rose six-fold over two decades.
The most common form of the disease, it is strongly linked to obesity and was once the preserve of the middle-aged and elderly.
Those who analysed the figures said the increase can 'almost entirely' be explained by the obesity crisis – and warned developing diabetes early raises the odds of potentially deadly complications.
Diabetics are more likely to suffer heart attacks and strokes than other people.
The condition, in which the body struggles to convert sugar to energy, also increases the risk of blindness, kidney disease and nerve and circulatory damage, which can lead to amputations. Earlier onset gives the disease time to attack the body and could bring decades of ill health.
The study of a snapshot of GPs' surgeries found that from 1991 to 1995, 577 people under 40 were diagnosed with type 2 diabetes.
But from 2006 to 2010, that soared to more than 14,000 – a more than 20-fold increase – with young women particularly likely to be diagnosed.
A large part of this rise can be explained by changes in the way data is collected, and it is estimated the true rate of diagnosis in under-40s is now around six times higher than in the 1990s, at around 25,000 new cases a year.
Obesity rates roughly doubled in the same period, with 26 per cent of adults dangerously overweight by 2010.
In a report on their findings, published in the journal Diabetes, Obesity and Metabolism, the researchers said: 'Not only was the overall incidence increasing but the proportion of people aged 40 or less rose markedly.
'This is likely to place an increasing burden on resources and may also lead to death at a younger age.'
The researchers, from Cardiff University and the Heart of England NHS Trust in Birmingham, said the rise may be partly due to better screening, since GPs now have performance-related pay that rewards them for diagnosing sufferers. However, they said rising obesity was the main driver.
Lead researcher Professor Craig Currie said: 'It's almost entirely obesity. How fat you are is the top and bottom of it.'
Dr Matt Capehorn, of the National Obesity Forum, said even children in their early teens have been diagnosed.
Some are genetically more at risk but lifestyle is the key trigger, he said, adding: 'It's still quite rare but we do see them. In the huge majority of cases type 2 diabetes develops as a consequence of being overweight. So as the weight of the nation increases, the incidence goes up too.
'The implications for NHS spending are huge. It already spends about 10 per cent of its entire budget on diabetes. It's not the diabetes that kills people but usually the heart disease they develop as a consequence.'
Professor Jason Halford, of the UK Association for the Study of Obesity, warned diabetes is the first in a chain of diseases fuelled by obesity.
He said: 'It is likely that in a few years we will see a similar epidemic of cardiovascular disease and, after that, probably an increase in a good number of cancers as well.'
Up to half of all men given the all-clear by NHS prostate cancer tests could actually have the disease
Tests for prostate cancer may be incorrectly giving the all-clear to up to 50 per cent of men who have the disease, according to a study.
Experts believe thousands of patients with the disease could be missed every year because the standard biopsy techniques used at most NHS hospitals are flawed.
And thousands more perfectly healthy people could be wrongly diagnosed with the disease and undergoing needless radiotherapy or surgery, according to a study by the London School of Hygiene and Tropical Medicine and University College London.
Most NHS hospitals automatically use biopsies for men with suspected prostate cancer, removing and examining tissue in an attempt to establish whether the disease is present.
More than 100,000 of these ‘blind’ biopsies are carried out every year – but experts say the procedures are inaccurate and risky.
They are instead calling for less invasive – but far more expensive – MRI and ultrasound scans to be used first, which they say could immediately and reliably give the all-clear to men without the disease, and allow doctors to carry out more accurate biopsies by pinpointing the area where a tumour is suspected.
Professor Mark Emberton, of the University College London, told the Daily Telegraph: ‘There is no other organ of the body where we carry out random “blind” biopsies without knowing where we are looking.
‘At UCLH we have been using MRI, followed by a guided biopsy for several years, but there are only a handful of hospitals in this country which do this, and that needs to change.’
The health economists who carried out the Wellcome Trust-funded study calculated that using the alternative procedure could mean a quarter of patients are given the all-clear without having a biopsy.
For every 1,000 men with suspected cancer, 250 men could have been reassured after a scan.
Of 500 of the cases in which significant disease was present, just 50 per cent were detected during the traditional biopsy, compared with 68 per cent using the MRI-guided technique.
One in 20 of those undergoing the traditional biopsy were wrongly found to have significant disease levels.
Using the MRI-guided technique, around half as many men were given a wrong diagnosis.
Sarah Willis, a health economist from London School of Hygiene and Tropical Medicine, said: ‘These findings suggest that the use of MRI and ultrasound not only detects far more cases, but leads to fewer false positives, in which significant disease is wrongly diagnosed.’
Dr Kate Holmes, head of research at Prostate Cancer UK, said: ‘This early data suggests that giving men an MRI scan before a biopsy may put clinicians in a better position to tailor investigations and treatments further down the line.
'However, further research is necessary before we will know the true value of this method.’
17 June, 2013
Fat-fighting nonsense in Australia
And what evidence do they have to show that this system will do any good? None. It's just dubious theory
The Government is touting a new five-star food labelling system as the latest tool to help fight the obesity epidemic in Australia. The star scale would rate foods from half-a-star to five stars, based on nutritional value.
Federal, state and territory ministers will discuss the proposal for the new voluntary system at a meeting tomorrow. If they agree, it is likely stars will appear on the front of food packaging by the middle of next year.
But it is understood the Food and Grocery Council is not convinced the plan is ready to roll out.
The federal Parliamentary Secretary for Health, Shayne Neumann, says he wants all jurisdictions and the industry to support the scheme.
"I'm very pleased the jurisdictional representatives will be there on Friday," he said. "I've had some discussions already and I'm very pleased with the response so far in relation to it. "An at a glance, interpretive information guide is what consumers want. It's a powerful tool."
Michael Moore from the Public Health Association of Australia says the system will make it easier for consumers to make healthier choices.
"People will be able to just, at a glance, have a look at the front of the pack and go, 'Hey this is four-and-a-half star food, that's obviously good for me, it's obviously good for my children'," he said.
"Or one-and-a-half stars - 'look we'll eat a bit of that but we'll be careful'."
The proposal has been worked on for months by representatives from the food industry and retailers, health and consumer groups.
Obesity tipped to soar
Jane Martin from the Obesity Policy Coalition says the aim of the proposal is very clear. "The situation is very serious already. We've got more than 65 per cent of adults overweight or obese and 25 per cent of children," she said. "And, the projections are that by 2020 that will rise to 80 per cent of adults and two-thirds of children."
She says it is a population-wide problem and while obesity rates are higher among low-income earners, it is a middle-class problem
"There's not going to be one magic bullet and we need to give people the kind of information that will help them make better decisions and healthier decisions," she said. "So front of pack labelling system that gives people interpretive information will help them cut through the marketing spin."
Food and Grocery Council has concerns
Most packaged food will be covered. Soft drinks and confectionary will be exempt, but will display the kilojoule content.
But the ABC understands the Australian Food and Grocery Council has concerns about the cost to food manufacturers to change labelling and how the 'health value' of a product would be determined.
The ABC understands it is prepared to consider the options, but it has also written to the states with some concerns. The council did not return calls from the ABC.
Mr Moore says the group has been involved in the process and has lashed out at what he calls their delaying tactics.
"I must say I feel a little jaded because my organisation, the Heart Foundation, Cancer, Choice, have spent quite a significant amount of time and quite a reasonable amount of money to come to this point and I think it's entirely inappropriate action from the Food and Grocery Council," he said.
British PM backs genetically modified crops to prove Britain is pro-science
David Cameron has given the clearest signal yet that the government wants to see controversial genetically-modified crops grown across the country.
The Prime Minister told a conference of entrepreneurs that Britain needs to take a ‘really good look again’ at its policy on GM food if it is to prove it is a ‘pro-science’ country.
The intervention from Mr Cameron that he wants to see a GM free-for-all across the UK will alarm those who deride genetic modification as ‘Frankenscience’.
It emerged earlier this week that ministers are to push the European Union to relax restrictions on the cultivation of GM crops for human consumption.
But it is the first time that the Prime Minister has spoken up in favour of the idea. In opposition he was seen as being sceptical of GM crops.
Advocates argue that GM techniques increase crop yields, avoid the need for pesticides, and could be essential in assuring Britain's future food security.
However, any relaxation of current restrictions will be in the teeth of much opposition. A survey by YouGov out today found only 21 per cent of the population supported the technology, while 35 per cent opposed it.
Mr Cameron made the comments as he addressed an audience of scientists and business leaders in London at an innovation summit linked to the UK's leadership of the G8 group of the world's richest nations.
He said: ‘We need to make sure we are a very pro-science country. I think there are one or two subjects there we need to take on. I think it's time we had a really good look again at GM food and all of that. ‘I think we need to be open to be open to arguments from science.’
The government is reported to be ready to call for EU restrictions on cultivation of the crops for human consumption to be relaxed.
The coalition has allowed small-scale cultivation trials for GM food but widespread use is effectively banned.
Some GM products are contained in imported foods, but most supermarkets have banned the ingredients from their own-brand products because of public unease about the material.
Earlier this week, science minister David Willetts supported calls for controls on GM crops to be weakened to make it easier for Britain’s farmers to grow them.
'We believe that GM crops can help make agriculture more efficient and also just as importantly more sustainable, by, for example, reducing the use of pesticides and the use of fossil fuels,' he said.
A European Commission analysis of 130 research projects carried out by 500 groups over 25 years concluded in 2010 that there is 'no scientific evidence associating genetically-modified organisms with higher risks for the environment or food and feed safety than conventional plants or organisms'.
But opponents of GM crops argue that it is far too early to conclude that the technique is safe – including many farmers, with a quarter of those surveyed saying they would not cultivate them under any circumstances.
They are concerned that GM crops could foster stronger pests, diseases and weeds that evolve to adapt to engineered plants.
Mr Cameron also used the innovation event to launch a prize fund, with £1million of taxpayers' money, to encourage revolutionary new ideas aimed at solving the world's biggest problem.
He said the modern version of the 1714 Longitude Prize would be a ‘Britain's Got Talent’ for innovators.
‘There are so many problems in our world that need that amazing solution, whether it is a cure for dementia, solving the problem of diabetes, having a flight from Britain to New York that's carbon free,’ he said.
‘Let's challenge the public and challenge the scientists for which is the great problem we want to crack.
‘I'm thinking of something - Britain's Got Talent, you know, you switch on the TV and you watch the dog jumping over the pole, or whatever it is. Let's actually get the nation engaged on what the biggest problems are in science and in our lives that we need to crack, with a multi-million pound prize to then help us do that.’
16 June, 2013
So Robert F. Kennedy Jr. Called Us to Complain about vaccines …
He says scientists lie, journalists are scared of the CDC, and the government is poisoning children -- a brainless attention-seeker
Robert F. Kennedy Jr. likes to talk. When he calls you to discuss vaccines, he talks a lot, uninterruptably. He called Keith Kloor after Kloor wrote a story for Discover about RFK Jr.’s keynote address to a convention of people who think vaccines cause autism.
RFK Jr. was displeased. His managing director emailed me (I’m the health and science editor) to say that the story was full of inaccuracies, and I offered to correct any errors right away. He said Kennedy wanted to speak to Plait or me; I requested comments or corrections in writing; we went back and forth. Eventually Kennedy got me on the phone and he talked and I listened.
The short version of the vaccine conspiracy theory (if you are stuck on the phone with RFK Jr., you will be subjected to the long version) is that a vaccine preservative called thimerosal causes autism when injected into children. Government epidemiologists and other scientists, conspiring with the vaccine industry, have covered up data and lied about vaccine ingredients to hide this fact. Journalists are dupes of this powerful cabal that is intentionally poisoning children.
For a guy whose family has such a distinguished record of public service, Kennedy says some pretty awful things about government employees: “The lies that you are hearing and printing from the CDC are things that should be investigated.” He spoke to one scientist (he named her but I won’t spread the defamation) who, he said, “was actually very honest. She said it’s not safe. She said we know it destroys their brains.”
I asked the scientist about their conversation. She said there is in fact no evidence that thimerosal destroys children’s brains, and that she never said that it did.
Like a lot of conspiracy theories, this one started with a mystery: Autism diagnoses were going up, and it wasn’t entirely clear why. It was reasonable to ask whether vaccines were disrupting neural development somehow, and a paper published in a prestigious medical journal claimed to show evidence of a link.
So scientists studied the question. They found that the incidence of autism is independent of when and how many vaccines children are given, that taking thimerosal out of vaccines doesn’t reduce the incidence of autism, and that the study by Andrew Wakefield purporting to show a link was entirely made up.
Thimerosal is a mercury compound, which sounds scary, but mercury comes in many forms that behave differently in the body, and this isn’t the dangerous kind. And in any case, a decade ago thimerosal was removed from the childhood vaccines that anti-vaxxers claimed were causing autism. The evidence is pretty clear now that the increase in autism rates is mostly a matter of better diagnoses and more parents seeking services.
But RFK Jr. disagrees. A scientist told him about the changes in diagnostic criteria, but “I knew that that was not true, because I spent my life working with people with intellectual disabilities. My family started the Special Olympics. I worked at Camp Shriver from when I was 8 years old. … I saw every kind of mental disability, but I had never seen autistic. I didn’t know what autism was until I saw Rain Man.”
Kennedy claims that scientists admit to him in private that they are lying about the data. When he challenged one university scientist about the accuracy of studies showing that the presence of thimerosal in vaccines had no effect on autism diagnoses, “He folded like a house of cards. Three weeks later I heard him on the radio and he was saying the same things he said to me, which I knew he knew was lying.”
A cover-up of such proportions might sound like Pulitzer bait, but he says journalists aren’t pursuing the story because we won’t read scientific papers. (Phil Plait and I both have science Ph.D.s.) As RFK Jr. explained, “journalists get their information from government officials who are saying there’s no problem. Not one of them has picked up the multitude of studies that say thimerosal is the most potent brain killer imaginable.”
When RFK Jr. challenged the university scientist about a study of the biological activity of thimerosal in vitro, which “everybody accepts because journalists hadn’t read it,” the scientist said, “ ‘Oh, yeah, you’re right about that.’ He backpedaled.” That’s because “now he was dealing with somebody who wasn’t afraid to read science.”
I talked to the scientist, who would prefer I not use his name because he gets death threats from unhinged anti-vaxxers. He said, “Kennedy completely misrepresented everything I said.”
Seth Mnookin knows the vaccine-autism conspiracy theory as well as anyone. I asked him about Kennedy’s claims, and he said, “What he has done is taken concern that there could be a problem as evidence that there was a problem.” Kennedy also said that Mnookin, in his book, “doesn’t talk about the science.” The Panic Virus has 66 pages of source notes and 38 pages of bibliography.
The underdog narrative is powerful. So is fear of chemicals. So is the desire for a simple solution to a complicated problem. And conspiracy theories are alluring. For some people, it’s deeply rewarding to believe that you and your fellow conference attendees are the only ones who know the real story behind the moon landing, Area 51, or the obvious example. Like doomsday cultists after the world doesn’t end, they misinterpret every new bit of information to make it fit into their existing worldview.
And vaccines are a special case. You’re allowing your healthy child to be injected with some mysterious substance to prevent a disease that —because vaccines work so well— you have never even seen. There’s a long history of conspiracy theories about vaccines, and it’s sometimes easier to recognize the paranoia from afar.
In parts of Pakistan, Nigeria, and other countries, people are convinced that a polio eradication campaign is a Western plot to sterilize Muslim children. They know it is: They have it on good authority from leaders with famous names.
Robert F. Kennedy Jr.’s elaborate conspiracy theory is just as delusional and dangerous. Rather than accepting the findings of the Institute of Medicine, the National Institute of Mental Health, or the American Academy of Pediatrics, Kennedy says the scientists are lying. He says vaccine-makers are intentionally poisoning kids and giving them autism. Only he and his fellow activists know the truth because journalists, although they may report aggressively on the National Security Agency, Defense Department, and Central Intelligence Agency, are cowed by the Centers for Disease Control and Prevention.
Kennedy had one substantive objection to Phil Plait’s story that I hope shows he may someday change his mind. We refer to people who say vaccines cause autism with the shorthand “anti-vaxxers” or say that they are part of the “anti-vaccine movement.” Kennedy said that he is “very much pro-vaccine” and that “vaccines have saved millions and millions of lives.”
They will save even more lives if he and his colleagues stop spreading fear and misinformation about them. Kennedy is a passionate guy with practically unique name recognition, powerful connections, and the ability to command attention. He could reverse the course of the anti-vaccine movement today if he announced that his concern about vaccines had been well-intentioned, but that research has shown that vaccines don’t cause autism after all. It would be a proud legacy, one worthy of his name.
Aggressive anti-vaccination nuts in Australia
The Australian Vaccination Network (AVN), which is actually anti-vaccine, is fighting an order to change its name.
It claims to be a lobby and support group that promotes health choices. But the New South Wales Fair Trading Department says that is misleading because it is, in fact, an anti-vaccination group.
New Zealand father Ian Williams has become the latest vocal campaigner in favour of vaccination.
He and his wife had not vaccinated their children, but then their son got a cut on his foot, and the situation became very serious.
"It took a stay of 24 hours in hospital for them to diagnose it was tetanus, because the spasms started getting worse and worse," he said. "It's a terrible thing. Your whole body arches, your arms go up in the air."
Mr Williams says the vaccine controversy is difficult to navigate. "It looks like, when you go into it, there's a whole lot of pros and cons, and there's a 50-50 argument," he said.
In reality, almost 100 per cent of doctors are pro-vaccine.
The Australian Vaccination Network sounds like an organisation that would agree with Mr Williams' views that vaccination is a life saver, but it does not.
In fact, it actively promotes the link between vaccination and autism, a theory that was debunked by the medical world 20 years ago.
The NSW Department of Fair Trading has ordered it to change its name, but the AVN is resisting the order in court. The parties will be back in court on Friday.
New South Wales Opposition health spokesman and paediatrician, Dr Andrew McDonald, says the AVN's name is a serious problem.
"This is all about false advertising. The Australian Vaccination Network, a vehement anti-vaccination group, who are doing whatever they can to keep their name near the top of a Google search," he said.
"They're number two on a Google search if you use the words 'Australia' and 'vaccination' and that's why they want to preserve their name to keep it there."
Journalist Jane Hansen has been heading up a recent campaign at Sydney's Sunday Telegraph designed to raise vaccination rates.
"Anyone who criticises the AVN - and this is journalists, politicians or even parents that have had sick children who have gone public with their views on vaccination - very quickly find themselves on the end of some pretty vile attacks," she said.
"They pride themselves on this all natural approach but there's no peace, love and lentils if you criticise them.
"They come at you, criticising you of being on the payroll of 'Big Pharma'."
Dr McDonald has also felt their sting. "We've had the police around our office following and they've investigated threatening emails to this office," he said.
PM has contacted the founder of the AVN, Meryl Dorey, to respond to those allegations.
Dr McDonald says it is time for doctors to educate the community about the consequences of non-vaccination.
"The tragedy is that we are now seeing as much whooping cough as I did 30 years ago," he said. "We've just had a major epidemic of measles in Campbelltown. "Unless we improve our immunisation rates, we are at risk of future epidemics."
14 June, 2013
The best way to boost brain power and improve exam grades? Chant 'Om' like the Beatles did
Class again. Not many workers would be doing TM
A meditation technique made famous by the Beatles could boost brain power and even improve exam grades, scientists have claimed.
A study of high school students found graduation rates were up to 25 per cent better for those who Chanting ‘om’ or a similar meditation mantra for 20 minutes twice a day.
The relaxation technique, known as Transcendental Meditation, involves a particular sound being repeated over and over again with the eyes closed.
It has also been shown to reduce the risk of death from heart attack and strokes and soothe stress and anxiety.
It became fashionable among ‘flower power’ hippies of the Sixties after John Lennon, Paul McCartney, George Harrison and Ringo Starr visited India and were taught it by the late Maharishi Mahesh Yogi.
Professor Robert Colbert, from the University of Connecticut, said improved graduation rates benefit society as a whole, as well as improving prospects for the individual.
He added that dropping out can result in loss of income, along with more risk of turning to crime and ending up in jail, or becoming dependent on state benefit.
In the study, analysis of the records of 235 students at an urban school on the east coast of the U.S. showed a 15 per cent higher graduation rate for those put on a transcendental mediation program compared to a control group.
When only the lowest academically performing participants in both groups were considered, passes rose by 25 per cent in the meditators.
The meditating students were also less likely to drop out from school, or enter prison, and were more likely to be accepted to further education.
Prof Colbert said: 'While there are bright spots in public education today, urban schools on the whole tend to suffer from a range of factors which contribute to poor student academic performance and low graduation rates.
'Students need to be provided with value added educational programs that can provide opportunities for school success.
'Our study investigated one such program, Transcendental Meditation, which appears to hold tremendous promise for enriching the lives of our nation’s students.'
In a 2009 interview, Ringo Starr said of Transcendental Meditation: 'Over 40 years ago, we ended up in Rishikesh.
That is where we hung out with Maharishi. We had met him a few months before in Wales. Since then, sometimes a lot, sometimes a little, I have meditated. It is a gift he gave me.’
Paul McCartney added: 'It is one of the few things anyone has ever given to me that means so much to me. For us, it came at a time when we were looking for something to stabilise us at the end of the crazy Sixties.'
The research is published in the journal Education.
Can an hour in a salt cave cure your ills>
The crisp white powder crunches under foot, stacks of crystalline rock sparkle and ‘icicles’ glitter from above. No, it’s not a secluded Alpine cave but a clinic in West London.
The white powder isn’t snow, it’s salt. So are the icicles and the rocks piled in the corner. I am standing in the Adalex Clinic’s recently-opened ‘salt grotto’.
The grotto (actually, it’s less of a ‘grotto’ than just a plain old room with assorted sun loungers) is the brainchild of Grace Hart, a former psychologist.
She says that such grottos are commonplace in her native Poland, and claims that a spell in its salty confines — a typical session lasts an hour and costs £25 — offers all manner of health benefits, from relieving asthma to improving blood circulation and lowering blood pressure.
Above all, after an hour in the grotto I should experience, she says, a sense of ‘psycho physical comfort’. Which definitely sounds like a good thing — even if I’m not entirely sure what she means by it.
Actually, quite a lot of what clinic manager Grace says about the health benefits of the salt grotto doesn’t bear close scrutiny.
‘It’s about feeling good, mentally and physically,’ she tells me. ‘You will feel calm and refreshed, and you won’t have any anxiety.’
The apparently miraculous power of salt is all, she says, down to its ‘micro-elements’.
Salt is rich in minerals such as iodine, potassium and bromide. Usually, we get these by eating it — but Grace believes we can absorb them by sitting in a room full of the stuff.
‘We are depleted of micro-elements because our water is polluted, our diet is bad. But micro-elements like bromide have a calming effect on the brain. If you are stressed out, you can become calm in a natural way.’
As well as a new-found sense of calm, after an hour in the grotto, she promises, I should feel reinvigorated and healthy.
‘The air is very clean inside the grotto — ten times cleaner than normal air,’ she continues. ‘Salt is anti-fungal and anti-bacterial. You start breathing slower and deeper as the salt opens up your bronchial airways. You breathe better and you feel better.’
While it may sound like bunkum (OK, it definitely does sound like bunkum), in Central and Eastern Europe they have been using salt grottos — both natural and artificial — for donkey’s years.
The first was set up 150 years ago after Dr Feliks Boczkowski, a Polish physician from Wieliczka, near Krakow, noted that local salt miners didn’t suffer from lung diseases. A natural grotto was carved out within the Wieliczka mines themselves, 400 feet underground. It became popular with those suffering respiratory disease, and is still in use today.
Before I’m allowed into Grace’s grotto, she hands me a pair of blue plastic shoe covers to protect both the salt and my shoes.
To keep the salt fresh, it is regularly topped up from the stash of enormous 25kg sacks kept in a storage room at the back.
And it definitely is salt. After Grace closes the grotto’s outer door and leaves me alone, I taste a pinch just to be sure.
The PA system in the corner plays a pan-pipes version of Just The Way You Are, while angled lamps make the salt look rosy pink, with blotches of blue on the ceiling and orange stripes along the walls.
It’s a little like being in a Seventies nightclub. Nevertheless, after 20 minutes in the cave, the promised sense of calm is indeed descending. In fact, I’m starting to nod off. I’m seated on a squishy sun lounger and wrapped up in a snuggly blanket which Grace has provided.
Though there are magazines in the waiting room, in the grotto there’s nothing to do but drift in and out of sleep. Clients are asked to leave their mobile phones behind.
There is a soporific sound of gently trickling water coming from what looks like an enormous garden water feature. This, explains Grace, is the grotto’s ‘evaporation tower’.
A good six feet high, it features an artfully-arranged fan of salt-encrusted twigs inside a giant wooden display case. Water flowing from a tank concealed within the tower’s wardrobe-like structure is trickling over them. It’s brine, brought over from Poland, Grace tells me.
‘It is one of the most healthy, healing waters,’ she says. It is a very special mineral water. Sitting near it as it flows, many of your positive ions will change to negative ions, which always make you feel better.
‘In the city, there are a lot of positive ions — which make you feel anxious, angry and agitated. Negative ions make you feel refreshed and fantastic.’
From what I can remember of GCSE physics, ions are simply atoms or molecules with positive or negative electrical charges. Why they should leave you anxious or refreshed eludes me.
The twigs, meanwhile, are birch — a ‘healing wood’ according to Grace. But of course!
The salt itself is equally exotic. The three tons which cover the floor have been brought from Poland, while the rocks lining the walls and piled at the corners are Himalayan salt imported from Pakistan.
According to Grace: ‘Not every salt has all the special properties. Himalayan salt has 84 different micro-elements.’
In total, the room contains more than 10 tons of salt. Building it took a month and cost £35,000.
There’s no doubt that lolling around in my sun lounger is a rather pleasant way to while away an hour — but how does the scientific evidence stack up? Unfortunately, there isn’t a huge amount.
‘I know of no good scientific evidence about this approach and see no reason why this should be any better than relaxing in any other quiet environment,’ says Professor Edzard Ernst, a physician and former Professor of Complementary Medicine at Exeter University.
Wendy Sadler, of Science Made Simple, an independent organisation aimed at explaining scientific research to the public, agrees — and questions the idea that exposure to ‘micro-particles’ and ‘negative ions’ can make you feel calmer and more energised.
She says: ‘There’s no reason at all you should feel calm because of exposure to negative ions. And there have been no studies that have shown mineral water will convert positive ions to negative ones.’
Neither is there much to support the myriad other health benefits salt grottos purport to offer.
Malayka Rahman, research officer at Asthma UK, says that while some sufferers have noticed short-term benefits, it is not clear whether that’s down to salt or simply the effect of an hour’s relaxation.
A couple of months ago a similar business, the Salt Cave — a company which operates a chain of grottos across the UK — was forced to remove a section of its website which claimed salt therapy could treat various ailments, including cystic fibrosis and psoriasis.
The Advertising Standards Authority concluded that there was insufficient evidence.
Grace is unperturbed by such naysayers. ‘There’s always a war between traditional doctors and alternative therapies,’ she says. ‘The medical world is like a Mafia. You can’t patent a natural thing like this, so there’s no money in it for them.’
And anyway, she says, business is booming. Though the clinic is ghostly quiet during my time there, Grace claims her grotto often has 30 customers a day.
Clients hoping to treat their asthma are recommended to make two or three visits a week for seven or eight weeks — at a cost of more than £400. It sounds an awful lot to realign your ions, if you ask me.
You can even hire the grotto for private parties — complete with champagne and canapés in the clinic’s sleek white reception area.
The next marketing opportunity is a new wrinkle cream made with hemp oil and (yes, you guessed it) Himalayan salt.
Grace says: ‘Salt keeps moisture in the skin and smooths it out. Look, I’m 62, but I don’t have many wrinkles.’ (It is true that she does look some ten years younger than her age.)
As for me? Well, I can’t say I experience any great transformation.
Grace tells me I should sleep deeply that night, and certainly I leave the clinic feeling relaxed. But whether that’s the salt at work or has more to do with the fact that I’ve spent an hour snoozing on a sun lounger, I don’t know.
At any rate, it was a perfectly pleasant — if expensive — way to spend a morning. As for any supposed health benefits .?.?. well, I’d take those with a pinch of salt.
13 June, 2013
Vegetable oil and nuts 'fight prostate cancer': Swapping cakes for foods can stop disease spreading
At least the authors disclaim causal inferences. The people on more "correct" diets were probably middle class and it was that which gave a better prostate outcome -- as middles are healthier generally
Swapping to vegetable oils and nuts may increase a man’s chances of surviving prostate cancer.
A study found that those diagnosed with the disease early had a lower risk of the cancer spreading if they replaced animal fats found in processed foods – such as cake and pastries – with healthy vegetable fats.
One serving of oil-based salad dressing a day, equivalent to one tablespoon, was linked with a 29 per cent lower risk of potentially lethal prostate cancer and a 13 per cent lower chance of dying from any cause.
The US authors stressed the research involving 4,577 prostate cancer patients had revealed an association and could not necessarily prove a diet rich in oils and nuts was the cause.
In an online paper published by the journal JAMA Internal Medicine, they wrote: ‘Overall, our findings support counselling men with prostate cancer to follow a heart-healthy diet in which carbohydrate calories are replaced with unsaturated oils and nuts to reduce the risk of all-cause mortality.’
Of the men with prostate cancer enrolled into the study, around a fifth died from the disease over a period of about eight years. Another 31 per cent died from heart disease and almost 21 per cent from other cancers.
At the time they were recruited, all the men had non-metastatic prostate cancer, meaning the disease had not yet spread.
Information about the patients’ dietary habits was collected from questionnaires.
Swapping animal fats and carbohydrates for healthy vegetable fats, including olive and canola oil as well as oils from nuts, seeds and avocados, was found to have a significant impact on disease progression and death.
Men who replaced 10 per cent of their daily carbohydrate consumption with vegetable fats had a 29 per cent lower risk of developing deadly prostate cancer and a 26 per cent reduced risk of dying from any cause.
The study also showed that eating an ounce of nuts a day led to an 18 per cent lower risk of lethal prostate cancer and an 11 per cent lower risk of death.
Dr Erin Richman, from the University of California at San Francisco, said: ‘Consumption of healthy oils and nuts increases plasma (blood) antioxidants and reduces insulin and inflammation, which may deter prostate cancer progression.’
Babies of obese mothers are at a higher risk of premature birth, serious illness and death
The usual naivety. Fatties were probably mostly working class and that give the adverse outcomes
Babies born to overweight women are more likely to be born prematurely, increasing the likelihood of serious illness and even death.
A study of 1.5 million births in Sweden between 1992 and 2010 found the danger of early delivery rose proportionally with the mother’s weight.
Women with the highest BMI (body mass index) also had the highest statistical risk of giving birth prematurely, and especially extremely early.
Compared to women of normal size, an extremely premature birth was 25 per cent more likely for overweight women and 60 per cent more likely for obese mothers.
For severely obese (BMI 35-39.9) or extremely obese (BMI 40 or more) women, the corresponding risk was doubled and tripled respectively. Risks of very and moderately preterm deliveries also increased with BMI.
The findings published in the Journal of the American Medical Association are alarming with the obesity levels in Britain fast approaching those in the U.S.
Three in five adults are overweight or obese possibly explaining the 40,000 babies a year born prematurely, the highest in Europe.
Professor Sven Cnattingius, of the Karolinska Institute, Stockholm, said: ‘For the individual woman who is overweight or obese, the risk of an extremely preterm delivery is still small.
‘However, these findings are important from a population perspective. Preterm infants and, above all, extremely preterm infants account for a substantial fraction of infant mortality and morbidity in high income countries.’
In the study, his researchers calculated the women’s BMI (weight in kilograms divided by height in square metres) from information given at their first visit to prenatal care.
A BMI between 18.5 and 24.9 was assessed as normal, 25 to 29.9 as overweight, and 30 or more as obese.
Dr Cnattingius said a third of all pregnant women in Sweden are either overweight or obese, and this impacts the number of premature babies.
He said: ‘Overweight and obesity also increase the risk of maternal pregnancy complications including preeclampsia, gestational diabetes and Caesarean delivery.’
In Sweden there are about 100,000 births a year of which around 250 are extremely early, in that they are delivered more than 12 weeks before the expected date.
Another 500 are very premature (8 to 12 weeks too early), and 4,500 moderately so (4 to 8 weeks).
The study also found the risk was substantially explained by obesity-related diseases such as the severe pregnancy complication preeclampsia that endangers the health of both mother and child.
12 June, 2013
Teenagers who spend time in the sun are 'significantly' less likely to develop hay fever and eczema
But why? Maybe less healthy children to start with are kept indoors and out of the sun
Teenagers who spend more time outside in the sun have a lower risk of hay fever and eczema, according to a new study.
Those who spend more than four hours per day exposed to sunlight on summer days benefit from decreased rates of both conditions, Australian scientists found.
‘Higher sun exposure during summer holidays and summer weekends in adolescence was associated with significantly reduced eczema and rye grass positive rhinitis,’ they wrote.
The team found that the benefit of sun exposure persisted after accounting for measured levels of vitamin D, the so-called sunshine vitamin which our body produces from sunlight on our skin, in participants.
This suggests the benefit stems from another mechanism, according to the researchers led by Dr Andrew Kemp at the Royal Children’s Hospital in Melbourne.
The study involved 415 participants, who were recruited at birth and followed until the age of 16. Their average daily duration of sun exposure in summer months was recorded at eight and 16 years of age.
At 16, researchers also recorded whether they suffered from hay fever, eczema, asthma or showed any signs of sensitisation to allergens.
There was no significant association between sun exposure aged eight and any allergic disease or allergen sensitisation at 16.
But teens who spent more than four hours per summer day in the sun aged 16 had a significantly decreased risk of hay fever and eczema.
Asthma was not related to sun exposure, whether assessed through diagnosis by a doctor or use of asthma medications.
The authors, whose findings are published in the online version of the journal Paediatric Allergy and Immunology, said the reasons for the protective effect of sunlight were not certain.
They said one possibility is that ultraviolet (UV) irradiation can have effects on the immune system that might impact on the development of allergies.
A number of previous studies have shown that UV exposure can suppress the immune system and inflammatory activities.
But this does not explain the effect on hay fever, where the site of inflammation is not directly exposed to UV light.
‘It is possible that cells modulated by UV, following migration from the skin to other organs, might produce effects elsewhere,’ they wrote.
‘It has also been suggested sun exposure by inducing antimicrobial peptides may enhance antibacterial defences. This could benefit diseases such as eczema where bacterial colonisation of the skin is considered to play a significant role.’
They called for further studies in the area to consider both exposure to UV rays and vitamin D before sun exposure is recommended to reduce rates of allergic disease.
Breast screening 'doesn't cut deaths': Study of 40 years of mammograms show 'no evidence' they reduce chance of dying
Screening for breast cancer does not cut the chance of dying from the disease, a study claims. The examination of 40 years of UK data produced ‘no evidence’ there was a greater fall in death rates in women who underwent mammograms.
In fact, the age group that showed the steepest fall in mortality rates were the under 40s – who are not eligible for the regular X-ray check-ups.
It is the latest study to cast doubts on the effectiveness of screening, with some experts now suggesting that advances in treatment are more likely to account for the better chances of survival.
The research was carried out by scientists from Oxford University’s Department of Public Health, who looked at the Oxford region before and after the introduction of the NHS’s screening programme in 1988.
Comparing the results with England as a whole, they found no evidence that death rates fell greater in screened women.
The greatest drop was among those under 40, where rates decreased by five per cent a year from 2000.
Lead researcher Toqir Mukhtar said although the two million women a year who undergo screening may still benefit because cancer can be detected earlier, the £75million annual cost of the programme should be reviewed.
The findings, published in the Journal of the Royal Society of Medicine, contrast with last year’s Department of Health review, which concluded that screenings cut relative mortality by 20 per cent.
Professor Michael Baum, a sceptic of screening, said: ‘The good news for women is that breast cancer death rates are falling, but it is almost entirely attributable to better treatment rather than screening.’
However, Eluned Hughes, of the charity Breakthrough Breast Cancer, said it was hard to ‘unpick’ the factors that contribute to improving survival rates.
‘It’s important that women have all the information available to them on the pros and cons of screening in order to make an informed choice that’s right for them,’ she said.
Baroness Delyth Morgan, of Breast Cancer Campaign, claimed the Department of Health’s ‘comprehensive’ review proves that screening ‘does save lives’.
And Professor Julietta Patnick, director of the NHS Cancer Screening Programmes, said check-ups play a ‘key role’ in giving women the best chance of receiving successful treatment.
‘All new evidence about the benefits and harms of breast cancer screening is kept under review to ensure that the breast screening programmes are based on the latest available evidence,’ she added.
11 June, 2013
Tomatoes could ease night-times for prostate patients by relieving pressure on the bladder
Too few details provided to check these claims
Tomatoes have already been credited with a host of health benefits – and now another one can be added to the list. Lycopene, the antioxidant which makes tomatoes red, has been found to reduce age-related enlargement of the prostate and thereby pressure on the bladder.
The revelation will bring comfort to those men troubled by the need to visit the toilet frequently, especially at night.
Tomatoes – packed with vitamins, natural anti-inflammatories and other goodies – have been previously identified as helping to combat cardiovascular disease, stroke and prostate cancer.
The latest benefit emerged from research in Queensland, Australia. A three-month study was carried out into the effect of lycopene in combination with other natural compounds.
A total of 57 men aged 40 to 80 were given pills containing active ingredients or identical dummy tablets. They were not told which ones they were taking.
Researchers found that the number of night-time visits to the toilet was cut by more than a third and overall bladder function was substantially improved.
Meanwhile, evidence has been growing about the benefits of a recently launched British supplement called Ateronon containing an artificial version of lycopene.
Research presented by Cambridge University at the prestigious American Heart Association showed it had a unique effect in improving blood vessel flexibility and reducing hardening of the arteries.
Ian Wilkinson, director of the university’s clinical trials unit, is confident that similar benefits will be gained in reducing the risk of prostate cancer and slowing the disease in men already diagnosed.
‘Ateronon could be more beneficial than natural lycopene because it is more easily absorbed by the body,’ Mr Wilkinson said. ‘We are designing a trial to prove that.’
Luis Vitetta, also a director at the university, said lycopene has a similar chemical structure to finasteride, the main drug used to treat benign enlargement of the prostate. ‘That may be the reason for the effect,’ he said.
A second newly-published study in Chicago has shown beneficial proteins in prostate cells were boosted when exposed to lycopene.
Project leader Richard van Breemen said a long-term study was needed on lycopene as it took time to have an effect.
Medical breakthrough for MS sufferers
In a breakthrough discovery, researchers have discovered a treatment capable of reducing the debilitating autoimmune response that occurs in people suffering from multiple sclerosis (MS).
When patients are diagnosed with multiple sclerosis, their bodies begin to attack the protein myelin, which insulates the body’s spinal cord, brain and optic nerves. As a result, MS patients experience symptoms such as numbness in their limbs, paralysis and sometimes blindness.
However, during a phase one clinical trial of a new treatment for MS patients, researchers were able to curtail the body’s attacks on myelin by 50 to 75 percent, while sustaining the functionality of the rest of the immune system.
Current treatments for MS seek to lessen the body’s autoimmune response to myelin, but this often results in decreased effectiveness of the entire immune system.
“Most therapies for autoimmune diseases employ approaches broadly called immunosuppressors – they knock down immune response without specificity,” study co-author Stephen Miller, professor of microbiology-immunology at Northwestern University Feinberg School of Medicine, told FoxNews.com.
“People can become highly susceptible to everyday infections and develop higher rates of cancer.”
Miller and his colleagues sought a more targeted ‘tolerance’ treatment that would leave the greater immune system intact while knocking out only the autoimmune response to myelin.
“In MS, the idea is to target autoreactive T-cells directed against myelin…which would (reduce) disease progression, but wouldn’t make patient susceptible to higher rates of infection,” Miller said.
In a study published in the journal Science Translational Medicine, a small group of MS patients were treated intravenously with an infusion of their own white blood cells, which had been engineered to carry billions of myelin antigens. Researchers hoped the cells would teach the body to stop attacking myelin.
Miller and his team needed to determine if the treatment, which was based on 30 years of previous research, could be safely applied in humans – and they were pleased to discover it could be.
“It was safe to infuse as many as 3 billion autologous cells that we collected and manipulated back into the same patient and didn’t trigger exacerbations,” Miller said. “Most patients didn’t show any increased signs of disease during the six-month follow up.”
Furthermore, the treatment did not seem to impede the larger immune system. Researchers tested this by analyzing whether or not each patient continued to retain their immunity to tetanus, for which all of the patients had previously been vaccinated.
“Among four patients receiving the highest doses (of autologous cells), immune response to myelin antigens had diminished or gone away - but tetanus had not gone away,” Miller said.
This indicated that the immune system’s ability to fight other diseases after the procedure remained intact.
Though researchers caution that the study was too small to draw any significant conclusions, they are optimistic about the outcomes of larger studies and the ability of this treatment to help halt the progress of MS – particularly among recently-diagnosed patients.
“The idea is that if we’re able to intervene early enough in disease process, we can stop the autoimmune destruction and (the patient) will have little or no clinical deficit as result of earlier attacks before being diagnosed,” Miller said.
Researchers hope to receive funding to begin a phase two trial soon.
10 June, 2013
Breast really is best if you want a brainy baby (?)
Naive hi-tech nonsense. IQ is a strong predictor of breast-feeding and IQ is strongly genetically inherited. Control for IQ among the mothers would be needed if this were to tell us anything about breast feeding as such
Breast milk boosts brain development in babies by up to 30 per cent, according to a new study.
Children exclusively fed breast milk for at least three months have up to 30 per cent extra growth in the key parts of the brain which control language, emotion, and understanding, say scientists.
The study of under-fours showed children who have breast milk as part of their diet have a clear advantage when it comes to brain development.
Research carried out at Brown University, in the U.S., found that by the time the babies had reached their second birthday a discernible difference could be seen in their brain structure.
Dr Sean Deoni, an engineering professor and lead author, said: ‘We're finding the difference [in white matter growth] is in the order of 20 to 30 per cent, comparing the breastfed and the non-breastfed kids.’
Using Magnetic Resonance Imaging (MRI) brain scans were taken of the babies who had been fed a diet of breast milk in the earliest stages of their development, and of those who had been fed formula milk.
The scans showed that babies fed breast milk alone had the fastest growth in myelinated white matter - tissue packed full of long nerve fibres that link different parts of the brain that are used for learning.
The babies who were weaned on a diet of formula were found to have the least white matter.
Dr Deoni's team carried out the study to see how early the changes in brain development took place.
‘We show that they're there almost right off the bat,’ he said.
Scans show that babies fed breast milk alone have the fastest growth in myelinated white matter - tissue packed full of long nerve fibres that link different parts of the brain that are used for learning
Scans show that babies fed breast milk alone have the fastest growth in myelinated white matter - tissue packed full of long nerve fibres that link different parts of the brain that are used for learning
Researchers looked at the brains of 133 babies who were born on time and came from similar families.
By comparing the myelin in older and younger children they were able to calculate how breast milk influenced the development of white matter.
The researchers backed up the results of the scans with a set of basic cognitive tests that showed language performance, visual reception and motor control were all better in the breastfed children.
The team found that the longer the babies were fed with breast milk the more developed their brains were, especially in the areas of the brain associated with movement and coordination.
While the Brown study published in the journal NeuroImage is not the first to link breastfeeding with improved development in the young, Dr Deoni claimed it is the first time MRI scans have been used to compare the brains in breastfed and non-breastfed children.
Dr Deoni said: ‘I think it's astounding that you could have that much difference so early. I think I would argue that combined with all the other evidence, it seems like breastfeeding is absolutely beneficial.’
Food authoritarianism in national parks
No definition of "healthy" and no evidence that the preferred foods will have a positive health effect
How about some goat cheese with huckleberry coulis and organic watercress after you've worked up an appetite by hiking in a national park? Or maybe some juniper-smoked bison with arugula?
Interior Secretary Sally Jewell announced on Wednesday that as part of a new "Healthy Parks, Healthy People" initiative, America's national parks will offer visitors a greater variety of nutritious foods.
“Today, as part of the administration’s efforts to promote healthier choices, we are adding yet another reason to visit our national parks and increasing the number of healthy food options available to visitors at parks from coast to coast."
Jewell said the new initiative is in line with President Barack Obama’s “commitment to health and well-being” and First Lady Michele Obama’s “Let’s Move” campaign to fight childhood obesity.
I want to emphasize this is about choice,” National Park Service Director Jon Jarvis said at the event on the National Mall, where chefs from park concessions around the country cooked up samples. “American people like their choices."
But while visitors may have a choice, vendors do not: Concessionaires who renew their contracts with the government will be required to include at least two “healthy” options, according to Kathy Kupper, spokesperson for the Park Service. Vendors with existing contracts will follow the new guidelines on a voluntary basis until the contract comes up for renewal.
Executive chefs from national parks around the country prepared some of the offerings at an event on June 5, 2013 to announce new guidelines for park food vendors. (CNSNews.com/Penny Starr)
Jarvis said the changes don't mean park visitors must eat healthy food. Traditional fare such as hot dogs and chicken tenders will still be available from food vendors who already sell those items. But, added Jarvis, “There’s no reason to take a vacation from eating well when you visit a national park.”
Gerry Gabrys, one of several National Park food vendors attending the event, said customers want healthier foods.
Some of the fare served at Wednesday's event included “Free-range Chicken Breast with Sweet Potato Cake and Fennel Salad,” “Crisp Filo, Goat Cheese with Caramelized Pecans, Huckleberry Coulis and Organic Watercress,” “Juniper Smoked Bison Strip Loin with Arugula and Low-fat Horseradish Crème Fraiche,” and “Griddled Cumin-Scented Chesapeake Bay Seafood Taco.”
Those entrees are more likely to be served at restaurants in some of the bigger national parks, such as Yellowstone and the Shenandoah.
The new healthy food standards and sustainable food guidelines are spelled out in detail in a six-page document.
In addition to providing more nutritious food options, the National Park Service is encouraging park food concessions to incorporate locally grown or raised items, when available.
The new guidelines include the following:
-- 30 percent of beverages should have no added sugar.
-- Offer half servings or reduced portion servings when possible such as when items are prepared in bulk like pasta and soups and are served to order.
-- Offer coffee that is fair-trade certified and shade grown.
-- Where seafood option are offered, provide only those that are “Best Choices” or “Good Alternatives” on the Monterey Bay Aquarium Seafood Watch list, certified sustainable by the Marine Stewardship Council, or identified by an equivalent program that has been approved by the National Park Service.
-- For grab and go food establishments, ensure that healthier options are placed where they are noticeable and likely to be purchased.
-- Do not offer fried items as “specials” or “featured” items.
The guidelines will help the National Park Service meet "Action Goal #8 – Eat Well and Prosper,” the text states.
“Providing additional choices is good for our customers and good for our business,” said Gabrys, CEO of Guest Services, Inc. “All of us have seen a growing consumer demand for healthy food and we are committed to meeting the needs and desires of park visitors while keeping prices affordable. The new guidelines include many efforts already underway by the industry and reflect the close collaboration and positive partnership we enjoy with the National Park Service.”
9 June, 2013
Babies who eat FISH are less likely to develop allergies in later life
The usual correlational faith. Given the prevalence of a fish oil religion, it was preobably middle class parents who spent a lot on fish. And they are healthier anyway
Babies regularly fed fish in their first year of life are much less likely to develop common allergies when they get older, new research shows.
Scientists who monitored babies' diets found many of those that ate plenty of fish early in life were much more likely to still be free of allergies 12 years later, when the study ended.
Their chances of developing eczema dropped by 22 per cent, and hay fever by 26 per cent.
The findings, published in the American Journal of Clinical Nutrition, suggest giving fish to infants as little as two or three times a month may be enough to substantially reduce their risks.
Eczema affects an estimated one in eight children in the UK. It can cause red, itchy skin condition that can be very distressing and there are few very effective treatments.
In the worst cases, children have to be bandaged with cotton dressings from head to foot.
Hay fever, meanwhile, is thought to affect up to one in five youngsters. Both conditions are also linked with an increased risk of asthma.
Although previous research has suggested early exposure to fish in the diet could have a protective effect up to the age of four, researchers wanted to see if the benefits lasted even longer.
Experts at the Karolinska Institute in Stockholm, Sweden, tracked 3,285 babies to study their dietary intake at the ages of one, two, four, eight and 12.
They also looked at how many went on to develop allergies.
The results showed fish plays a big part in dietary patterns among Swedish infants, with 80 per cent consuming it at least twice a month.
Among these children, the risk of allergies dropped significantly compared to others that rarely or never ate fish.
However, the study did not examine exactly which type of fish had the most potent affect.
In a report on their findings researchers said: 'Regular fish consumption in infancy may reduce the risk of allergic disease up to the age of 12.'
HRT IS safe to combat menopause, say experts: After decade of controversy, benefits now thought to outweigh risks
More vindication of what I said from the beginning
Taking medication to reduce the symptoms of the menopause is safe according to medical experts.
They say hundreds of thousands of women have suffered unnecessarily as a result of the decade-long controversy over the effects of Hormone Replacement Therapy.
Fresh guidance from the British Menopause Society is seeking to reassure patients, saying the benefits of HRT outweigh any potential risk for women in their 50s.
They say GPs should prescribe the treatment to any woman who has unpleasant menopausal symptoms, such as hot flushes and mood changes. HRT is also known to provide bone protection in later life.
However, the debate is likely to rage on as The Royal College of Obstetricians and Gynaecologists continues to advise HRT only for women with serious menopausal symptoms for the shortest time possible.
After five years doctors are not expected to continue prescribing it without discussing potential risks.
Uptake of HRT halved after two studies linked it to an increased risk of heart disease and breast cancer. An estimated one million women in the UK stopped having the treatment.
Consultant Endocrinologist Dr Helen Buckler, from the University of Manchester, said the emerging consensus was that the benefits of HRT outweighed the risks for most women, and that GPs should consider the updated BMS advice when treating the condition.
Speaking at the Cheltenham Science Festival, she said the two studies linking HRT to breast cancer and heart disease were scientifically unreliable.
She said: 'The new advice is HRT should be used for a slightly wider age, if need be. If a woman has symptoms affecting the quality of her personal or professional life, then the benefits outweigh the risk.'
The scare began in 2002, when the US Women's Health Initiative study was halted three years early because researchers claimed women using HRT were at higher risk of breast cancer, heart disease and strokes.
This contradicted previous – and later – research which suggested it guarded against heart problems.
How the debate has raged
HRT is normally prescribed to menopausal women in their 50s, but in the WHI study, it was also given to women in their 60s and 70s who had gone through the menopause more than a decade earlier.
Shortly afterwards the UK Million Women Study, part funded by Cancer Research, said HRT doubled breast cancer risk, but a review last year said it was 'unreliable and defective'.
Cancer Research advice remains that there is still convincing evidence that women who take HRT have an increased risk of breast cancer. But Dr Buckler said the charity was 'out of step' and its approach had tended to 'put women off' taking the treatment.
Some younger doctors have never prescribed HRT because they wrongly believe the risks outweigh the benefits, experts have warned.
Jessica Harris, of Cancer Research UK, said there was 'convincing evidence' that women who take HRT have an increased risk of breast cancer, but that risk returns to normal around five years after stopping using it.
The BMS guidance is also opposed to the 'arbitrary' five year limit on treatment, and says it should be continued if symptoms persist.
The BMS – a registered charity and medical foundation – receives no government funding. Its medical advisory council comprises leading international experts in post reproductive health management, who draw up guidelines for health professionals.
7 June, 2013
Car Emissions Turn HDL Cholesterol from ‘Good’ to ‘Bad,’ Mice Study Shows
So mice should keep out of traffic
An international team of scientists has found that breathing car emissions triggers a change in high-density lipoprotein, sometimes called the ‘good cholesterol,’ altering its cardiovascular protective qualities so that it actually contributes to clogged arteries.
According to their paper published in the journal Arteriosclerosis, Thrombosis and Vascular Biology, in addition to changing high-density lipoprotein (HDL) from ‘good’ to ‘bad,’ the inhalation of car emissions activates other components of oxidation, the early cell and tissue damage that causes inflammation, leading to hardening of the arteries.
Emission particles such as those from vehicles are major pollutants in urban settings. These particles are coated in chemicals that are sensitive to free radicals, which have been known to cause oxidation. The mechanism behind how this leads to atherosclerosis, however, has not been well understood.
The team found that after 2 weeks of exposure to vehicle emissions, mice showed oxidative damage in the blood and liver – damage that was not reversed after a subsequent week of receiving filtered air. Altered HDL cholesterol may play a key role in this damaging process.
“This is the first study showing that air pollutants promote the development of dysfunctional, pro-oxidative HDL cholesterol and the activation of an internal oxidation pathway, which may be one of the mechanisms in how air pollution can exacerbate clogged arteries that lead to heart disease and stroke,” said senior author Prof Jesus Araujo of the University of California’s David Geffen School of Medicine.
One group of mice was exposed to vehicle emissions for two weeks and then filtered air for one week, a second was exposed to two weeks of emissions with no filtered air, and a third was exposed to only clean, filtered air for two weeks.
Study co-author Prof Michael Rosenfeld from the University of Washington said: “the biggest surprise was finding that after two weeks of exposure to vehicle emissions, one week of breathing clean filtered air was not enough to reverse the damage.”
Mice were exposed for a few hours, several days a week, to whole diesel exhaust at a particulate mass concentration within the range of what mine workers usually are exposed to.
After the exposures, the team analyzed blood and tissue specimens and checked to see if the protective antioxidant and anti-inflammatory properties of HDL were still intact. The scientists used special analytical laboratory procedures to evaluate how ‘good’ or ‘bad’ HDL had become. The team found that many of the positive properties of HDL were markedly altered after the air-pollutant exposure.
For example, the HDL of mice exposed to two weeks of vehicle emissions, including those that received a subsequent week of filtered air, had a much-decreased ability to protect against oxidation and inflammation induced by low-density lipoprotein (LDL) cholesterol, known as ‘bad’ cholesterol, than the mice that had only been exposed to filtered air.
Without HDL’s ability to inhibit LDL, along with other factors, the oxidation process may run unchecked. Moreover, not only was the HDL of the mice exposed to diesel exhaust unable to protect against oxidation, but, in fact, it further enhanced the oxidative process and even worked in tandem with the LDL to promote even more oxidative damage.
Researchers also found a twofold to threefold increase of additional oxidation products in the blood of mice exposed to vehicle emissions, as well as activation of oxidation pathways in the liver. The degree of HDL dysfunction was correlated with the level of these oxidation markers.
“We suggest that people try to limit their exposure to air pollutants, as they may induce damage that starts during the exposure and continues long after it ends,” said study first author Dr Fen Yin fron the Geffen School of Medicine.
Obese mothers may pass on health risks to grandchildren
More rodent wisdom
Obese women may be passing health problems such as heart disease and diabetes onto their grandchildren, a new study has suggested.
Researchers have discovered that conditions linked to obesity can skip a generation.
Researchers have discovered that conditions linked to obesity can skip a generation, leaving the children of moderately obese mothers apparently healthy.
However, their grandchildren are more likely to suffer from obesity and related diseases such as diabetes.
The findings provide growing evidence for how lifestyle choices by parents can pre-programme the genes of their children and even their grandchildren.
Dr Amanda Drake, senior clinical research fellow at the University of Edinburgh, where the work was carried out, said: “Given the worldwide increase in obesity, it is vital that we gain an understanding of how future generations may be affected.”
Around one in four adults in England are now considered to be obese while recent figures show that 22 per cent of four to five year olds are obese and 34 per cent of 10 to 11 year olds are obese.
During the study, published in the journal Endocrinology, used moderately obese female mice that were fed a high fat and sugary diet before and during pregnancy.
The first generation of mice were found to have few ill effects when fed a normal diet, but the second generation were more prone to obesity related diseases.
Scientists now believe this occurs due to the tweaks that occur to a person’s DNA while they are in the womb.
Known as known as developmental programming or epigenetics, these are thought to help prepare babies for the environment they are about to born into.
However, there is a growing body of evidence that shows these can at times also be detrimental by altering a child’s risk to cancer, obesity and other diseases.
Dr Drake said scientists now needed to look at how disease risk may be passed down not just from parents to their children but also to their grandchildren.
This should help public health organisations offer advice on how parents can change their lifestyles to protect their children and grandchildren from greater health risks.
She added: “Future studies could look at these trends in humans but they would need to take into account genetics, environmental, social and cultural factors.”
6 June, 2013
Coffee Drinking as a Mental Disorder
Caffeine dependency does seem to be fairly common
Coffee-drinkers, beware: Your caffeine habit could induce a temporary mental disorder. The new edition of the mental health manual, the DSM-5, lists caffeine intoxication among the many disorders known to psychiatry.
Restlessness, nervousness, excitement, red face, gastrointestinal upset, muscle twitching, rambling speech, sleeplessness, rapid and irregular heartbeat and other symptoms may be familiar to many of us, but they are telltale signs of caffeine intoxication.
Specifically, a coffee drinker who experiences five or more of these symptoms during or shortly after consuming caffeine could be diagnosed with caffeine intoxication. The intoxication must also meet a standard DSM test: It must cause distress or impair the drinker's ability to function. [10 Odd Facts About Coffee]
This condition appears in both the old edition of the Diagnostic and Statistical Manual of Mental Disorders(DSM-IV) and the new DSM-5, but the new version, officially released Thursday (May 22), adds a related diagnosis: caffeine withdrawal, which describes the effects of stopping or dramatically reducing the pick-me-up habit.
Withdrawal symptoms include headache, fatigue, difficulty concentrating, depressed mood and other issues.
Caffeine is the most widely used, behaviorally active drug in the world, and some consumers may be unaware of their physical dependence on it, the DSM-5 notes.
"The symptoms of caffeine withdrawal are transitory, they take care of themselves," said Robin Rosenberg, a clinical psychologist and co-author of the psychology textbook "Abnormal Psychology" (Worth Publishers, 2009). "It's just a natural response to stopping caffeine, and it clears up on its own in short order."
The more long-standing diagnosis of caffeine intoxication also describes a temporary state, Rosenberg said, adding that she does not understand why either is included in the DSM.
Alan Budney, who served on the DSM-5 working group for substance-use disorders, explained the rationale for including caffeine withdrawal to Medscape Medical News in 2011.
"Caffeine is invading our society more and more. So there's concern enough to consider this topic seriously, even though it's probably one of the more controversial issues faced by our work group," said Budney, a clinical psychologist and professor of psychiatry at the University of Arkansas for Medical Sciences.
Caffeine withdrawal can affect someone's sleep, work and other aspects of his or her life, he said.
Typically, caffeine is used as a performance-enhancing substance. A bitter-tasting stimulant, it revs up the central nervous system, ideally making someone feel awake, alert and energetic. Caffeine is found in coffee, tea and chocolate, and is added to headache medication, energy and alcoholic beverages, and even water.
Everyone from athletes to morning commuters to people looking to get in a long night of partying take advantage of this stimulant. Some benefits, such as a reduced risk of some cancers, have been linked to coffee drinking, but its active ingredient, caffeine, can also harm. In rare cases when consumed at high enough doses, caffeine can kill.
Between 2005 and 2009, emergency room visits associated with the consumption of caffeine-laden energy drinks, often in combination with alcohol and other drugs, increased tenfold.
Of course, caffeine is not the only chemical that can intoxicate. The DSM groups this disorder with others associated with substances ranging from alcohol and nicotine to cannabis and hallucinogens. The use of mind-altering substances like these can alter behavior, mental processes and cause physical symptoms.
Ketamine cousin rapidly lifts depression without side effects
Sounds hopeful. "No side-effects" tends to be famous last words, however
GLYX-13, a molecular cousin to ketamine, induces similar antidepressant results without the street drug side effects, reported a study funded by the National Institute of Mental Health (NIMH) that was published last month in Neuropsychopharmacology.
Major depression affects about 10 percent of the adult population and is the second leading cause of disability in U.S. adults, according to the World Health Organization.
Despite the availability of several different classes of antidepressant drugs such as selective serotonin reuptake inhibitors (SSRIs), 30 to 40 percent of adults are unresponsive to these medications. Moreover, SSRIs typically take weeks to work, which increases the risk for suicide.
Enter NMDA (N-methyl-D-aspartate) receptor modulators. In the 1970s, researchers linked the receptors to learning and memory. Biotechnology and pharmaceutical companies in the 1980s attempted to apply chemical blockers to these receptors as a means to prevent stroke. But blocking these receptors led to the opposite effect—the rise of cardiovascular disease.
Research in the field dampened until a glutamate receptor antagonist already approved for anesthesia, and known on the streets as "Special K," ketamine, made headlines in the early 2000s.
Human clinical studies demonstrated that ketamine can ward off major and bipolar depressive symptoms within 2 hours of administration and last for several days.
Ketamine is fraught with serious side effects including excessive sleepiness, hallucinations, and substance abuse behavior.
"Ketamine lit the field back up," said Joseph Moskal, Ph.D., a molecular neurobiologist at Northwestern University and senior study author. "Our drug, GLYX-13, is very different. It does not block the receptor ion channel, which may account for why it doesn't have the same side effects."
Moskal's journey with GLYX-13 came about from his earlier days as a Senior Staff Fellow in NIMH's Intramural Research Program. While at NIMH, he created specific molecules, monoclonal antibodies, to use as new probes to understand pathways of learning of memory. Some of the antibodies he created were for NMDA receptors.
When he moved to Northwestern University, Moskal converted the antibodies to small protein molecules. Comprised of only four amino acids, GLYX-13 is one of these molecules. Previous electrophysiological and conditioning studies have suggested that GLYX-13, unlike ketamine, enhanced memory and learning in rats, particularly in the brain's memory hub or hippocampus. GLYX-13 also produced analgesic effects.
Using several rat behavioral and molecular experiments, Moskal's research team tested four compounds: GLYX-13, an inactive "scrambled" version of GLYX-13 that had its amino acids rearranged, ketamine, and the SSRI fluoxetine.
GLYX-13 and ketamine produced rapid acting (1 hour) and long-lasting (24 hour) antidepressant-like effects in the rats.
Fluoxetine, an SSRI that typically takes from 2-4 weeks to show efficacy in humans, did not produce a rapid antidepressant effect in this study. As expected, the scrambled GLYX-13 showed any antidepressant-like effects.
The researchers observed none of the aforementioned side effects of ketamine in the GLYX-13-treated rats. Protein studies indicated an increase in the hippocampus of the NMDA receptor NR2B and a receptor for the chemical messanger glutamate called AMPA.
Electrophysiology studies in this brain region showed that GLYX-13 and ketamine produced long-lasting signal transmission in neurons, known as long-term potentiation/synaptic plasticity. This phenomenon is essential in learning and memory.
The researchers propose how GLYX-13 works: GLYX-13 triggers NR2B receptor activation that leads to intracellular calcium influx and the expression of AMPA, which is then responsible for increased communication between neurons.
The results are consistent with data from a recent Phase 2 clinical trial, in which a single administration of GLYX-13 produced statistically significant reductions in depression scores in patients who had failed treatment with current antidepressants. The reductions were evident within 24 hours and persisted for an average of 7 days. After a single dose of GLYX-13, the drug's antidepressant efficacy nearly doubled that seen with most conventional antidepressants after 4-6 weeks of dosing. GLYX-13 was well tolerated and it did not produce any of the schizophrenia-like effects associated with other NMDA receptor modulating agents.
NMDA receptors need a molecule each of the amino acid chemical messangers glutamate and glycine to become activated. Moskal speculates that GLYX-13 either directly binds to the glycine site on the NMDA receptor or indirectly modulates how glycine works with the receptor. Resulting activation of more NMDA and AMPA receptors leads to an increase in memory, learning—and antidepressant effects.
By contrast, ketamine only blocks the NMDA receptor, but also increases the activity of the AMPA receptor. Knowledge of these mechanisms could lead to the development of more effective antidepressants.
GLYX-13 is now being tested in a Phase 2 repeated dose antidepressant trial, where Moskal and his colleagues at Naurex, Inc., a biotechnology company he founded, hope to find in humans the optimal dosing for the drug.
They also want to see if this molecule, and others like it, regulate other NMDA receptor subtypes—there are over 20 of them—and whether it will work on other disorders, such as schizophrenia, attention-deficit hyperactivity disorder, and autism.
"One could call NMDA modulators such as GLYX-13 'comback kids,'" said Moskal. "A toolkit that I developed in 1983 is now setting the stage in 2013 for the development of possible new therapeutics that may provide individuals suffering from depression with a valuable new treatment option."
More information: Burgdorf J, Zhang X-l, Nicholson KL, Balster RL, Leander JD, Stanton PK, Gross AL, Kroes RA, Moskal JR. GLYX-13, a NMDA Receptor Glycine-Site Functional Partial Agonist, Induces Antidepressant-LIke Effects Without Ketamine-Like Side Effects. Neuropsychopharmacology, April 2013. 38:729-742.
5 June, 2013
'Superfoods' shown to fight prostate cancer
The effect was on an indicator, not on cancer itself -- and an effect was shown not on people in general but on cancer survivors. Lots of room for slippage there
Superfoods have been shown to fight prostate cancer, in a ground-breaking study.
Men who had been treated with surgery or radiotherapy for the disease were given a capsule containing essence of pomegranate, green tea, turmeric and broccoli.
At the end of a six-month trial, their PSA levels - a protein which is an indicator of the cancer - were 63 per cent lower than those who took a placebo.
While lab tests and small non-randomised studies have previously suggested that such foods, which are rich in polyphenol, have an anti-cancer effect, the British study is the first to demonstrate such an impact on sufferers of prostate cancer, compared with those who were not given the capsules.
Prof Robert Thomas, a consultant oncologist at Bedford Hospital and Addenbrooke’s Hospital in Cambridge will present the results of the “Pomi-T” study at the American Society of Clinical Ontology in Chicago today.
Professor Thomas said: “Our experience in offering high-quality clinical care, collaboration with cancer charities and world-class research with the University of Cambridge has resulted in findings which will have an world-wide impact.
"We hope this will help millions of men to help combat the onset of prostate cancer.
The study found virtually no adverse affects among the group who were given the supplement.
Because of the lowered PSA levels among those given the capsule significantly fewer men proceeded to potentially toxic therapies at the end of the study, the study said.
“Healthy eating and lifestyle is the main way of helping to combat the development of cancer but men can now also turn to a whole food supplement which has been shown to work,” said Prof Thomas.
Statins could lead to muscular injuries, scientists warn
At long last
Millions of people taking statins to lower their cholesterol could be putting themselves at risk of muscular injuries, researchers have warned.
The drugs have been associated with musculoskeletal conditions and joint diseases, with users more likely to suffer such conditions.
The findings were described as “concerning” in light of the fact that taking statins from a young age to prevent cardiovascular diseases has been widely advised.
Dr Ishak Mansi of the North Texas Health Care System in Dallas studied data from a military health care system to determine whether the drugs were associated with musculoskeletal conditions.
A total of 46,249 patients were divided into those who used statins and those who did not.
Dr Mansi said: "Musculoskeletal conditions, arthropathies, injuries and pain are more common among statin users than among similar non-users.
"The full spectrum of statins' musculoskeletal adverse events may not be fully explored, and further studies are warranted, especially in physically active individuals."
The study, which was published in the journal JAMA Internal Medicine, found that statin users had a higher odds ratio (OR) for musculoskeletal diseases, strains and sprains and dislocation.
Dr Mansi said: "To our knowledge, this is the first study, using propensity score matching, to show that statin use is associated with an increased likelihood of diagnoses of musculoskeletal conditions, arthropathies (joint injuries) and injuries.
"In our primary analysis, we did not find a statistically significant association between statin use and arthropathy; however, this association was statistically significant in all other analyses.
"These findings are concerning because starting statin therapy at a young age for primary prevention of cardiovascular diseases has been widely advocated.”
Statins can reduce the level of bad cholesterol in the blood and thus lower the risk of a heart attack in people at high risk.
They have been hailed as a wonder drug that everyone over 50 should be taking, but concerns have already been raised about side effects and possible health problems.
In March, researchers warned that taking high-dose statins put people at an increased risk of potentially fatal kidney problems.
Medics have also warned that statins can cause tiredness in many users.
4 June, 2013
Gruesome, medieval and utterly bizarre... but leeches freed me from awful migraines
The result below could be due to a placebo effect. She arrived ready to believe and admits that her migraines were intermittent
Migraines are miserable with bells on – actually, the idea of listening to the sound of a bell with a migraine brings me out in a sweat. When I am suffering with one, I can’t even stand the sound of my sheets rustling.
Apart from the intense throbbing, all-encompassing pain in my head, I also feel extremely nauseous and sensitive to light. I feel as if I am a vampire – a small sliver of daylight and POOF: I will spontaneously combust.
Some find there are triggers: hormonal cycles, stress, red wine. But mine hit me without rhyme or reason.
Which is why I decided to give leech therapy, or hirudotherapy – to give the treatment its correct medical term – a go.
As a believer in alternative medicine, I wanted to try something natural and holistic that didn’t involve days spent downing industrial-strength analgesics.
And before you put me and Demi in a box marked ‘Complete loons’, it seems modern medicine is also looking to this rather medieval practice as a solution for a host of ailments.
In the 1980s, leeches began to be used by reconstructive plastic surgeons needing to remove stagnant blood from reattached limbs, to stave off gangrene.
But now there are numerous studies into medical uses for leeches. One found that a single session of leeching – the medical application of bloodsucking leeches – can significantly reduce knee pain caused by arthritis for at least two months.
Researchers from the University of Duisburg-Essen in Germany claimed improvement levels were comparable to those achieved with daily moderate doses of painkillers such as ibuprofen. And before you say you’d probably rather pop a pill, consider the damage regularly taking painkillers can do to the stomach.
Bloodletting was discredited at the end of the 19th Century as doctors felt it left patients weak and prone to infection, but it has had a recent resurgence, with a wave of celebrities trying it.
Another clinical trial at the university is investigating whether nerve pain caused by shingles could also be remedied by leeching.
The secret is in the leeches’ saliva: it apparently contains a large number of analgesic, anaesthetic, and blood-thinning compounds that tackle pain and inflammation, say the researchers.
Google led me to Alicja, a Russian/Polish hirudotherapist with ten years’ experience. She is based in Las Vegas and New York but she has clients from all around the world.
Her passion for natural medicine goes back to her childhood in 1960s Poland, where leeches were used as a popular ‘country healing method’ to cure various health problems.
Back then, Kolyszko reminisces, leeches were sold at many pharmacies. Her grandmother would bring one home whenever any family member got sick, pop it on for an hour, and everything would be better.
These aren’t your common-or- garden leeches (there are more than 700 species that live wild in freshwater and marine environments – one once attached itself to my buttock while I was bathing in the Mekong river in Cambodia).
Medicinal leeches are specially cultivated in a sterile environment. The largest leech farm in the world – Biopharm in Hendy, South Wales – was established in 1812, moving to its current base in 1984.
Just before it bit into me, I could feel its cold and slimy body against my temple. But once it actually did, I was relieved that it felt like no more than a mild sting – the leech secretes an anaesthetic that numbs the skin, otherwise the pain would be unbearable. Botox is a million times worse.
Once Alicja is sure the leech has got to work, then it’s time for the next one, and the one after that, until you have four attached to you. You can definitely feel them working – it is a mild tugging sensation.
I know this sounds extraordinary, but I felt incredibly relaxed. The treatment takes about 40 minutes, until the leech is full and falls off, leaving a mark in the shape of a peace sign. They swell to about four times their normal size, as they become gorged with blood.
To get the most out of hirudotherapy, you need about three sessions within weeks of each other. I have not had a migraine since that first session. More than that, I feel rejuvenated.
Leeches really are miracle workers. I am a total convert.
People whose parents live a long life are 25% less likely to get cancer
This is consistent with there being a general syndrome of biological fitness
People whose parents who live to a ripe old age are more likely to live longer themselves, and are less prone to cancer and other common diseases associated with ageing.
Those whose mothers live beyond the age of 91 or fathers live past 97 are 24 per cent less likely to get cancer, say researchers from the University of Exeter Medical School.
They discovered that overall mortality rates dropped by up to 19 per cent for each decade that at least one of the parents lived past the age of 65.
For those whose mothers lived beyond 85, mortality rates were 40 per cent lower, reports The Journals of Gerontology: Series A.
The figure was a little lower (14 per cent) for fathers, possibly because of adverse lifestyle factors such as smoking, which may have been more common in the fathers.
The research saw nearly 10,000 people questioned. The participants were based in America, and were followed up over 18 years, from 1992 to 2010.
They were interviewed every two years, with questions including the ages of their parents and when they died. In 2010, the participants were in their seventies.
Professor William Henley, from the University of Exeter Medical School, said: 'Previous studies have shown that the children of centenarians tend to live longer with less heart disease, but this is the first robust evidence that the children of longer-lived parents are also less likely to get cancer.
'We also found that they are less prone to diabetes or suffering a stroke.
'These protective effects are passed on from parents who live beyond 65 - far younger than shown in previous studies, which have looked at those over the age of 80.
'Obviously children of older parents are not immune to contracting cancer or any other diseases of ageing, but our evidence shows that rates are lower.
'We also found that this inherited resistance to age-related diseases gets stronger the older their parents lived.'
Ambarish Dutta, from the Asian Institute of Public Health at the Ravenshaw University in India, said: 'Interestingly from a nature versus nurture perspective, we found no evidence that these health advantages are passed on from parents-in-law.
'Despite being likely to share the same environment and lifestyle in their married lives, spouses had no health benefit from their parents-in-law reaching a ripe old age.
'If the findings resulted from cultural or lifestyle factors, you might expect these effects to extend to husbands and wives in at least some cases, but there was no impact whatsoever.'
3 June, 2013
Study: Regular coffee intake associated with lower risk of liver disease
This appears to be data dredging through a self report questionnaire. VERY dubious findings
In recent years, several studies have been conducted to analyze the effects of coffee on several aspects of health, and most often the results have been interesting. A new study has discovered one such health benefit offered by regular intake of coffee: it reduces the risk of primary sclerosing cholangitis (PSC), a detrimental liver disease.
According to new research by Mayo Clinic, regular intake of coffee lowers the risk of PSC, an autoimmune liver disease. The study findings have been presented at the Digestive Disease Week 2013 conference that was held at Orlando, Fla.
"While rare, PSC has extremely detrimental effects," study author Craig Lammert, M.D., a Mayo Clinic gastroenterologist, said in a press statement. "We're always looking for ways to mitigate risk, and our first-time finding points to a novel environmental factor that also might help us to determine the cause of this and other devastating autoimmune diseases."
PCS is a disease of the bile duct that triggers inflammation and subsequent obstruction of the ducts, and this finally leads to cirrhosis of the liver, liver failure and biliary cancer.
To prove their finding, the study researchers examined a large group of patients who had PSC and primary biliary cirrhosis (PBC) along with a group of healthy patients. On analyzing the data, they learnt that intake of coffee was linked to a reduced risk of PSC. When compared to healthy people, patients suffering from PSC were not likely to consume coffee. The PSC patients spent 20 percent less time regularly drinking coffee than the healthy group.
From the study, researchers deduce that both PSC and PBS differ from each more than originally thought.
"Moving forward, we can look at what this finding might tell us about the causes of these diseases and how to better treat them," Konstantinos Lazaridis, M.D., a Mayo Clinic hepatologist and senior study author, says.
Report: Sunshine vitamin "may treat asthma"
This is a study in laboratory glassware only
The amount of time asthma patients spend soaking up the sun may have an impact on the illness, researchers have suggested. A team at King's College London said low levels of vitamin D, which is made by the body in sunlight, was linked to a worsening of symptoms.
Its latest research shows the vitamin calms an over-active part of the immune system in asthma. However, treating patients with vitamin D has not yet been tested.
People with asthma can find it hard to breathe when their airways become inflamed, swollen and narrowed.
Most people are treated with steroids, but the drugs do not work for all.
"We know people with high levels of vitamin D are better able to control their asthma - that connection is quite striking," said researcher Prof Catherine Hawrylowicz.
Her group investigated the impact of the vitamin on a chemical in the body, interleukin-17. It is a vital part of the immune system and helps to fight off infections.
However, it can cause problems when levels get too high and has been strongly implicated in asthma.
In this study, published in the Journal of Allergy and Clinical Immunology, vitamin D was able to lower levels of interleukin-17 when it was added to blood samples taken from 28 patients.
The team is now conducting clinical trials to see if giving the sunshine vitamin to patients could ease their symptoms. They are looking at patients who do not respond to steroids as they produce seven times more interleukin-17 than other patients.
Prof Catherine Hawrylowicz told the BBC: "We think that treating people with vitamin D could make steroid-resistant patients respond to steroids or let those who can control their asthma take less steroids."
She said a culture of covering up in the sun and using sun cream may have increased asthma rates, but "it is a careful message because too much sun is bad for you".
Malayka Rahman, from the charity Asthma UK, said: "For the majority of people with asthma, current available medicines are an effective way of managing the condition but we know that they don't work for everyone, which is why research into new treatments is vital.
"We also know that many people with asthma have concerns about the side effects of their medicines so if vitamin D is shown to reduce the amount of medicines required, this would have an enormous impact on people's quality of life.
"We look forward to the results of the clinical trial."
2 June, 2013
Forget the Mediterranean diet, NORDIC foods could be the key to avoiding heart disease, say scientists
Nordics live longer, for starters -- JR
For years, the Mediterranean diet with plenty of olive oil and vegetables has been lauded as the key to health and longevity.
But it seems that a Scandinavian nation's cuisine could actually be better for you.
Scientists have found that eating a diet based on that served up traditionally in Denmark could significantly reduce your risk of heart disease.
Nordic cuisine is usually made up of fresh berries, fish and game - foods that thrive in colder northern climates.
Professor Matti Uusitupa, from the University of Eastern Finland,told The Daily Telegraph: 'The Mediterranean diet, representing the diet traditionally eaten in southern Europe, has long been related to improved health and prevention of cardiovascular disease, certain cancers and type two diabetes.
'Acceptance of the Mediterranean diet has not been easy in other parts of the western world, probably due to difficulties in changing dietary patterns, cultural differences in taste and limited accessibility to various foods.
'A health-enhancing regional Nordic diet has therefore been proposed as an alternative to the Mediterranean diet.'
The diet has already been nicknamed the Noma diet - after the Noma restaurant in Copenhagen, ranked as the world's best three years in a row.
The study featured 166 obese people from Finland, Denmark, Sweden and Iceland, some of whom ate their regular diet and some who adopted the Nordic diet.
Both sample groups ate the same number of calories but those on the Nordic diet ate meals packed with fish, locally sourced vegetables and whole grain products. Poultry or game was consumed rather than red meat.
While those who stuck to their regular diet showed little difference in their levels of 'bad' cholesterol after 24 weeks, those on the Mediterranean diet had seen LDL-C levels drop four per cent with an increase in 'good' cholesterol.
Unlike the Mediterranean diet, the Nordic version also reduced chemicals that cause inflammation in the blood that are linked to heart disease.
Retailers should keep consumers — not Greens — in mind
As part of its Culture of Alarmism project, the Independent Women’s Forum (IWF) has recently launched a coalition letter – which includes CEI — to retailers to combat the greens so-called “Mind the Store“ campaign. We (IWF, CEI, and 21 other groups) advise retailers to ignore radical greens’ advice to remove certain products from store shelves, and instead honor consumer freedom.
The Greens’ effort, led by Safer Chemicals, Healthy Families, calls on the nation’s top 10 retailers — Walmart, Kroger, Target, Walgreens, Costco, Home Depot, CVS Caremark, Lowe’s, Best Buy, and Safeway –to remove a wide range of useful products from store shelves because they contain one of 101 so-called hazardous chemicals.
According to this group: "Since we began in 2009 the evidence that unregulated chemicals are having profound health impacts has only grown. The Presidents Cancer Panel report and the recent United Nations report are just two examples. (Our own report summarizes the state of the science linking chemicals and various health impacts here.) And yet the government is too slow to respond in the face of chemical industry opposition."
In reality, there is no compelling evidence that trace chemicals in consumer products pose significant risks, particularly when used as directed. As I noted in a recent IWF paper on cancer, the President’s Cancer Panel report is a political document, not a scientific study and its claims have been rebuked by reputable cancer researchers. The IWF paper and material found on CEI’s SafeChemicalPolicy.org offer lots of other reasons why consumers should not be alarmed by these products.
But that doesn’t seem to matter to the greens, who developed a rather arbitrary and scientifically meaningless list of chemical targets. They placed substances on their 101 hazardous chemicals list if the group found them on two of six government “chemicals of high concern lists” (see the greens’ “methodology” here). Yet these lists tell us nothing about actual risks. Rather, these politically derived government listings merely demonize chemicals because they are theoretically dangerous at some unspecified level. That makes them “hazardous” but not necessarily risky.
For example, cyanide is a hazardous product because at a high level, it can kill you. But if you experience no — or trace level — exposure, it has no effect. For example, the trace level of cyanide found in Brussels sprouts poses no real risk to consumers who eat them even pretty regularly. Ditto for water. Water is essential, but if you drink too much it can kill you. Trace exposure to chemicals in consumer products poses even lower risks than chemicals found in food since its more difficult for them to enter the human body.
Such realities make the Mind-the-Store campaign completely nonsensical. It suggests that retailers remove all products made with their 101 hazardous chemicals, which apparently includes food products. Given that humans eat food products — increasing our exposure, one might place these on the chopping block first. Accordingly, if retailers did apply the Mind-the-Store Campaign advice, they have to consider removing the following products from their store shelves:
* Any frozen food, soup, rice, pasta, or other food made with mushrooms, particularly Shiitake mushrooms. Mushrooms naturally contain the allegedly dangerous formaldehyde.
* Any food containing carrots, which naturally contain trace levels of arsenic.
* Coffee, any frozen or food with grilled asparagus, dried fruit, or any product that contains baked or fried potatoes or other carbohydrate rich foods. These contain acrylamide, which is naturally created in many foods when cooked. Kiss those french fries goodbye.
* Wine, beer, and spirits. Are you crying yet? Fermentation and distillation produces a wide range of trace chemicals in alcohol products, including acetaldehyde.
However, a real danger exists if retailers cave to the green hype as consumers will lose access to safe and effective products that both enrich our lives and make them safer. Second-best substitutes might not only fail to meet our needs, they could prove more dangerous. For example, if activists succeed in removing many flame retardant products from the market, more people might die in fires. If we eliminate disinfectants such as triclosan, more people may get sick. If we take formaldehyde out of cosmetics, more consumers might suffer health effects from applying rancid products on their skin. And if retailers refuse to sell containers lined with bisphenol A-based resins, inferior replacement products may lead to increased food-borne illnesses.
This is why IWF, CEI, and other coalition partners are calling on retailers to ignore the “Mind-the-Store” campaign advice. After all — despite the greens nanny statist comments that it’s “not feasible” for consumers to make wise choices — consumers are better situated to decide what products they want to buy and which they don’t.
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Posts here by Dr. John Ray
I am pleased to report that when my son was a toddler, the first thing he learned to say was his McDonald's order.
SITE MOTTO: "Epidemiology is mostly bunk"
Where it is not bunk is when it shows that some treatment or influence has no effect on lifespan or disease incidence. It is as convincing as disproof as it is unconvincing as proof. Think about it. As Einstein said: No amount of experimentation can ever prove me right; a single experiment can prove me wrong.
Epidemiological studies are useful for hypothesis-generating or for hypothesis-testing of theories already examined in experimental work but they do not enable causative inferences by themselves
The standard of reasoning that one commonly finds in epidemiological journal articles is akin to the following false syllogism:
Chairs have legs
You have legs
So therefore you are a chair
SALT -- SALT -- SALT
1). A good example of an epidemiological disproof concerns the dreaded salt (NaCl). We are constantly told that we eat too much salt for good health and must cut back our consumption of it. Yet there is one nation that consumes huge amounts of salt. So do they all die young there? Quite the reverse: Japan has the world's highest concentration of centenarians. Taste Japan's favourite sauce -- soy sauce -- if you want to understand Japanese salt consumption. It's almost solid salt.
2). We need a daily salt intake to counter salt-loss through perspiration and the research shows that people on salt-restricted diets die SOONER. So the conventional wisdom is not only wrong. It is positively harmful
3). Table salt is a major source of iodine, which is why salt is normally "iodized" by official decree. Cutting back salt consumption runs the risk of iodine deficiency, with its huge adverse health impacts -- goiter, mental retardation etc. GIVE YOUR BABY PLENTY OF SALTY FOODS -- unless you want to turn it into a cretin
4). Our blood has roughly the same concentration of salt as sea-water so claims that the body cannot handle high levels of salt were always absurd
5). The latest academic study shows that LOW salt in your blood is most likely to lead to heart attacks. See JAMA. 2011;305(17):1777-1785. More here and here on similar findings
PEANUTS: There is a vaccination against peanut allergy -- peanuts themselves. Give peanut products (e.g. peanut butter -- or the original "Bamba" if you have Israeli contacts) to your baby as soon as it begins to take solid foods and that should immunize it for life. See here and here (scroll down). It's also possible (though as yet unexamined) that a mother who eats peanuts while she is lactating may confer some protection on her baby
THE SIDE-EFFECT MANIA. If a drug is shown to have troublesome side-effects, there are always calls for it to be banned or not authorized for use in the first place. But that is insane. ALL drugs have side effects. Even aspirin causes stomach bleeding, for instance -- and paracetamol (acetaminophen) can wreck your liver. If a drug has no side effects, it will have no main effects either. If you want a side-effect-free drug, take a homeopathic remedy. They're just water.
Although I am an atheist, I have never wavered from my view that the New Testament is the best guide to living and I still enjoy reading it. Here is what the apostle Paul says about vegetarians: "For one believeth that he may eat all things: another, who is weak, eateth herbs. Let not him that eateth despise him that eateth not; and let not him which eateth not judge him that eateth." (Romans 14: 2.3). What perfect advice! That is real tolerance: Very different from the dogmatism of the food freaks. Interesting that vegetarianism is such an old compulsion, though.
Even if we concede that getting fat shortens your life, what right has anybody got to question someone's decision to accept that tradeoff for themselves? Such a decision could be just one version of the old idea that it is best to have a short life but a merry one. Even the Bible is supportive of that thinking. See Ecclesiastes 8:15 and Isaiah 22: 13. To deny the right to make such a personal decision is plainly Fascistic.
Fatties actually SAVE the taxpayer money
Obesity does NOT causes diabetes. But insatiable eating is a prominent symptom of diabetes. So diabetes DOES cause obesity, which accounts for the correlation between the two things. The streets are full of fatties who don't have diabetes. How come? If conventional medical theory were correct we should be in the midst of an epidemic of diabetes. A recent high quality study has also found that fatties are LESS likely to die of diabetes
Elite people frequently express disapproval of red meat eating as a way of expressing their felt superiority to the ordinary people who eat it
IQ: Political correctness makes IQ generally unmentionable so it is rarely controlled for in epidemiological studies. This is extremely regrettable as it tends to vitiate findings that do not control for it. When it is examined, it is routinely found to have pervasive effects. We read, for instance, that "The mother's IQ was more highly predictive of breastfeeding status than were her race, education, age, poverty status, smoking, the home environment, or the child's birth weight or birth order". So political correctness can render otherwise interesting findings moot
That hallowed fish oil is strongly linked to increased incidence of colon cancer
The "magic" ingredient in fish oil is omega-3 fatty acids (n-3 LCPUFA in medical jargon). So how do you think the research finding following was reported? "No differences were seen in the overall percentage of infants with immunoglobulin E associated allergic disease between the n-3 LCPUFA and control groups. It was reported as SUPPORTING the benefits of Omeda-3! Belief in Omega-3 is simply a cult and, like most cults, is impervious to disproof. See also here.
"To kill an error is as good a service as, and sometimes better than, the establishing of a new truth or fact" -- Charles Darwin
"Most men die of their remedies, not of their diseases", said Moliere. That may no longer be true in general but there is still a lot of false medical "wisdom" around that does harm to various degrees -- the statin and antioxidant fads, for instance. And showing its falsity is rarely the problem. The problem is getting people -- medical researchers in particular -- to abandon their preconceptions
Bertrand Russell could have been talking about today's conventional dietary "wisdom" when he said: "The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd; indeed in view of the silliness of the majority of mankind, a widespread belief is more likely to be foolish than sensible.”
Eating lots of fruit and vegetables is NOT beneficial
The great and fraudulent scare about lead
The challenge, as John Maynard Keynes knew, "lies not so much in developing new ideas as in escaping from old ones".
"Obesity" is 77% genetic. So trying to make fatties slim is punishing them for the way they were born. That sort of thing is furiously condemned in relation to homosexuals so why is it OK for fatties?
Some more problems with the "Obesity" war:
1). It tries to impose behavior change on everybody -- when most of those targeted are not obese and hence have no reason to change their behaviour. It is a form of punishing the innocent and the guilty alike. (It is also typical of Leftist thinking: Scorning the individual and capable of dealing with large groups only).
2). The longevity research all leads to the conclusion that it is people of MIDDLING weight who live longest -- not slim people. So the "epidemic" of obesity is in fact largely an "epidemic" of living longer.
3). It is total calorie intake that makes you fat -- not where you get your calories. Policies that attack only the source of the calories (e.g. "junk food") without addressing total calorie intake are hence pissing into the wind. People involuntarily deprived of their preferred calorie intake from one source are highly likely to seek and find their calories elsewhere.
4). So-called junk food is perfectly nutritious. A big Mac meal comprises meat, bread, salad and potatoes -- which is a mainstream Western diet. If that is bad then we are all in big trouble.
5). Food warriors demonize dietary fat. But Eskimos living on their traditional diet eat huge amounts of fat with no apparent ill-effects. At any given age they in fact have an exceptionally LOW incidence of cardiovascular disease. And the average home-cooked roast dinner has LOTS of fat. Will we ban roast dinners?
6). The foods restricted are often no more calorific than those permitted -- such as milk and fruit-juice drinks.
7). Tendency to weight is mostly genetic and is therefore not readily susceptible to voluntary behaviour change.
8). And when are we going to ban cheese? Cheese is a concentrated calorie bomb and has lots of that wicked animal fat in it too. Wouldn't we all be better off without it? And what about butter and margarine? They are just about pure fat. Surely they should be treated as contraband in kids' lunchboxes! [/sarcasm].
9). And how odd it is that we never hear of the huge American study which showed that women who eat lots of veggies have an INCREASED risk of stomach cancer? So the official recommendation to eat five lots of veggies every day might just be creating lots of cancer for the future! It's as plausible (i.e. not very) as all the other dietary "wisdom" we read about fat etc.
10). And will "this generation of Western children be the first in history to lead shorter lives than their parents did"? This is another anti-fat scare that emanates from a much-cited editorial in a prominent medical journal that said so. Yet this editorial offered no statistical basis for its opinion -- an opinion that flies directly in the face of the available evidence.
11). A major cause of increasing obesity is certainly the campaign against it -- as dieting usually makes people FATTER. If there were any sincerity to the obesity warriors, they would ban all diet advertising and otherwise shut up about it. Re-authorizing now-banned school playground activities and school outings would help too. But it is so much easier to blame obesity on the evil "multinationals" than it is to blame it on your own restrictions on the natural activities of kids
12. Fascism: "What we should be doing is monitoring children from birth so we can detect any deviations from the norm at an early stage and action can be taken". Who said that? Joe Stalin? Adolf Hitler? Orwell's "Big Brother"? The Spanish Inquisition? Generalissimo Francisco Franco Bahamonde? None of those. It was Dr Colin Waine, chairman of Britain's National Obesity Forum. What a fine fellow!
Trans fats: For one summary of the weak science behind the "trans-fat" hysteria, see here. Trans fats have only a temporary effect on blood chemistry and the evidence of lasting harm from them is dubious. By taking extreme groups in trans fats intake, some weak association with coronary heart disease has at times been shown in some sub-populations but extreme group studies are inherently at risk of confounding with other factors and are intrinsically of little interest to the average person.
The "antioxidant" religion: The experimental evidence is that antioxidants SHORTEN your life, if anything. Studies here and here and here and here and here and here and here and here, for instance. That they are of benefit is a great theory but it is one that has been coshed by reality plenty of times.
Controlling serum cholesterol does not of itself reduce cardiovascular disease. It may even in fact increase it
The absurdity of using self-report questionnaires as a diet record
PASSIVE SMOKING is unpleasant but does you no harm. See here and here and here and here and here and here and here
The medical consensus is often wrong. The best known wrongheaded medical orthodoxy is that stomach ulcers could not be caused by bacteria because the stomach is so acidic. Disproof of that view first appeared in 1875 (Yes. 1875) but the falsity of the view was not widely recognized until 1990. Only heroic efforts finally overturned the consensus and led to a cure for stomach ulcers. See here and here and here.
Contrary to the usual assertions, some big studies show that fat women get LESS breast cancer. See also here and here
NOTE: "No trial has ever demonstrated benefits from reducing dietary saturated fat".
Huge ($400 million) clinical trial shows that a low fat diet is useless . See also here and here
Dieticians are just modern-day witch-doctors. There is no undergirding in double-blind studies for their usual recommendations
The fragility of current medical wisdom: Would you believe that even Old Testament wisdom can sometimes trump medical wisdom? Note this quote: "Spiess discussed Swedish research on cardiac patients that compared Jehovah's Witnesses who refused blood transfusions to patients with similar disease progression during open-heart surgery. The research found those who refused transfusions had noticeably better survival rates.
Relying on the popular wisdom can certainly hurt you personally: "The scientific consensus of a quarter-century ago turned into the arthritic nightmare of today."
Medical wisdom can in fact fly in the face of the known facts. How often do we hear reverent praise for the Mediterranean diet? Yet both Australians and Japanese live longer than Greeks and Italians, despite having very different diets. The traditional Australian diet is in fact about as opposite to the Mediterranean diet as you can get. The reverence for the Mediterranean diet can only be understood therefore as some sort of Anglo-Saxon cultural cringe. It is quite brainless. Why are not the Australian and Japanese diets extolled if health is the matter at issue?
Since many of my posts here make severe criticisms of medical research, I should perhaps point out that I am also a severe critic of much research in my own field of psychology. See here and here
This is NOT an "alternative medicine" site. Perhaps the only (weak) excuse for the poorly substantiated claims that often appear in the medical literature is the even poorer level of substantiation offered in the "alternative" literature.
I used to teach social statistics in a major Australian university and I find medical statistics pretty obfuscatory. They seem uniformly designed to make mountains out of molehills. Many times in the academic literature I have excoriated my colleagues in psychology and sociology for going ga-ga over very weak correlations but what I find in the medical literature makes the findings in the social sciences look positively muscular. In fact, medical findings are almost never reported as correlations -- because to do so would exhibit how laughably trivial they generally are. If (say) 3 individuals in a thousand in a control group had some sort of an adverse outcome versus 4 out of a thousand in a group undergoing some treatment, the difference will be published in the medical literature with great excitement and intimations of its importance. In fact, of course, such small differences are almost certainly random noise and are in any rational calculus unimportant. And statistical significance is little help in determining the importance of a finding. Statistical significance simply tells you that the result was unlikely to be an effect of small sample size. But a statistically significant difference could have been due to any number of other randomly-present factors.
Even statistical correlations far stronger than anything found in medical research may disappear if more data is used. A remarkable example from Sociology: below:"The modern literature on hate crimes began with a remarkable 1933 book by Arthur Raper titled The Tragedy of Lynching. Raper assembled data on the number of lynchings each year in the South and on the price of an acre's yield of cotton. He calculated the correlation coefficient between the two series at -0.532. In other words, when the economy was doing well, the number of lynchings was lower.... In 2001, Donald Green, Laurence McFalls, and Jennifer Smith published a paper that demolished the alleged connection between economic conditions and lynchings in Raper's data. Raper had the misfortune of stopping his analysis in 1929. After the Great Depression hit, the price of cotton plummeted and economic conditions deteriorated, yet lynchings continued to fall. The correlation disappeared altogether when more years of data were added."So we must be sure to base our conclusions on ALL the data. But in medical research, data selectivity and the "overlooking" of discordant research findings is epidemic.
The Truth About Ancel Keys. Keys was a brilliant man but his concentration on heart disease misled him. He was right that high fat intake predicted high rates of heart disease (though it was ANIMAL fat in particular that was the "culprit") but he overlooked that the same intake predicted LESS mortality from other causes. The same narrow vision led him to be the earliest prominent advocate of the "Mediterranean diet" hypothesis. It's true that Mediterraneans have less heart disease but they have more of other causes of death, so that Mediterranean countries do not have particularly long lifespans when compared with other developed countries. If there are any lessons about diet to be learned from lifespans, it is un-Mediterranean countries like Australia and the Nordic countries that one should look to.
The intellectual Roman Emperor Marcus Aurelius (AD 121-180) could have been speaking of the prevailing health "wisdom" of today when he said: "The object in life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane."
The Federal Reference Manual on Scientific Evidence, Second Edition says (p. 384): "the threshold for concluding that an agent was more likely than not the cause of an individual's disease is a relative risk greater than 2.0." Very few of the studies criticized on this blog meet that criterion.
Improbable events do happen at random -- as mathematician John Brignell notes rather tartly:
"Consider, instead, my experiences in the village pub swindle. It is based on the weekly bonus ball in the National Lottery. It so happens that my birth date is 13, so that is the number I always choose. With a few occasional absences abroad I have paid my pound every week for a year and a half, but have never won. Some of my neighbours win frequently; one in three consecutive weeks. Furthermore, I always put in a pound for my wife for her birth date, which is 11. She has never won either. The probability of neither of these numbers coming up in that period is less than 5%, which for an epidemiologist is significant enough to publish a paper.
Kids are not shy anymore. They are "autistic". Autism is a real problem but the rise in its incidence seems likely to be the product of overdiagnosis -- the now common tendency to medicalize almost all problems.
One of the great pleasures in life is the first mouthful of cold beer on a hot day -- and the food Puritans can stick that wherever they like
DETAILS OF REGULARLY UPDATED BLOGS BY JOHN RAY:
"Dissecting Leftism" (Backup here)
"Education Watch International"
"Political Correctness Watch"
"Food & Health Skeptic"
"Immigration Watch International" blog.
BLOGS OCCASIONALLY UPDATED:
Coral Reef Compendium
"Marx & Engels in their own words"
"A scripture blog"
To be continued ....
Queensland Police -- A barrel with lots of bad apples
Australian Police News
BLOGS NO LONGER BEING UPDATED
"Eye on Britain"
"Leftists as Elitists"
OF INTEREST (2)
QANTAS -- A dying octopus
BRIAN LEITER (Ladderman)
Obama Watch (2)
Dissecting Leftism -- Large font site
AGL -- A bumbling monster
Bank of Queensland blues
There are also two blogspot blogs which record what I think are my main recent articles here and here. Similar content can be more conveniently accessed via my subject-indexed list of short articles here or here (I rarely write long articles these days)
Main academic menu
Menu of recent writings
basic home page
Pictorial Home Page
Selected pictures from blogs (Backup here)
Another picture page (Best with broadband. Rarely updated)
Note: If the link to one of my articles is not working, the article concerned can generally be viewed by prefixing to the filename the following: