Tuesday, March 06, 2012

Taking vitamin E supplements may actually WEAKEN bones, study shows

Note that vitamin E is a prime "antioxidant" -- LOL

It is dubbed the anti-ageing vitamin. But vitamin E may make bones old and frail before their time. Animals fed on a diet supplemented with the vitamin had bones 20 per cent weaker than those that ate normally, a preliminary study found. Worryingly, the effect was seen after just eight weeks.

The scientists behind the research said that given the popularity of vitamin E supplements, a larger study on people is now warranted.

The vitamin, which occurs naturally in cereals, nuts, olive oil and egg yolks, is credited with helping hold back the hands of time by 'fighting ageing from within'.

Benefits are said to include cutting the risk of heart disease, cancers and cataracts, as well as helping keep the mind sharp into old age and the skin supple.

One of the world's most popular supplements, it is taken daily by hundreds of thousands, if not millions, of Britons. In the US, more than one in ten adults take vitamin E tablets.

The latest study, detailed in the journal Nature Medicine, looked at the effect of alpha-tocopherol, the most common form of the vitamin, on bone strength.

Bone is constantly changing, with old bone broken down and new bone being built. Osteoporosis occurs when old bone is broken down by the body far more quickly than it is replaced.

In the Japanese study, mice genetically modified to have low levels of the vitamin in their blood, grew bones that were extra-thick. This was found to be due to them being poor at breaking down old bone, rather than good at making new stuff. When vitamin E was added to the animals' diet, their bone density returned to normal.

In another experiment, giving normal mice alpha-tocopherol vitamin E supplements at doses equivalent to those taken by people, led to their bones thinning by a fifth in just two months. The same result was seen in rats.

Researcher Dr Shu Takeda, of Keio University in Tokyo, called for a larger study on the vitamin's effect on human bones.

Professor Helen MacDonald, an advisor to the National Osteoporosis Society, said: 'There is nothing to worry about if you are getting plenty of vitamin E from your diet but those taking high doses of the nutrient in supplements need to be wary.

'You have to remember this research was carried out on animals and findings in humans can be very different. But more research is needed.'

An estimated three million Britons have osteoporosis, with 230,000 breaking weakened bones each year and 1,150 dying each month after fractured a hip.

SOURCE





Colon cancer drug hope through research into inflammatory bowel disease

A TEAM of Queensland researchers has developed a world-first treatment for the leading cause of colon cancer.

The University of Queensland's Institute for Molecular Bioscience has been working for more than a decade on a medication for inflammatory bowel disease, a condition that is estimated to affect 30 million people worldwide.

"We thought that certain enzymes involved in digesting food in the gut may, if uncontrolled, cause inflammatory bowel disease, so we developed a drug that blocks the effects of these enzymes on colon cells," one of the research team leaders, Dr Rink-Jan Lohman, said.

"Not only were we able to treat and prevent the symptoms, our drug was effective at 10 per cent of the dose of current treatments and it can be given in tablet form rather than injected."

The researchers believe that the drug might show similar benefits in treating other chronic inflammatory conditions, such as arthritis, and could prevent a variety of cancers from developing.

"If we can treat diseases like inflammatory bowel disease adequately we can likely reduce the risk of colon cancer in the population in the future," he said.

To move a drug to human trials costs millions of dollars, so the IMB team must get further funding to advance their research.

"The process of taking a drug from a promising molecule to a product on the shelves takes years, but discoveries such as these should give sufferers hope that better treatments will one day be available," Dr Lohman said.

The study has been published in the Journal of Pharmacology and Experimental Therapeutics.

SOURCE

Monday, March 05, 2012

Pressures to diet weighing on children

And all based on a political fad with very dubious science behind it. Dieting usually ends up making you FATTER

CHILDREN as young as four, panicked by aggressive anti-obesity messages, are starving themselves.

In 2010-11, 42 primary school children were admitted to hospital for eating disorders and the number of under-12s seeking help at Eating Disorders Association Queensland almost doubled from the previous year.

There was a 100 per cent increase in the number of cases relating to primary school boys. More than 500 parents in total made contact.

The shocking new figures come as food warrior and celebrity chef Jamie Oliver yesterday called for Government's to regulate what goes in to school lunchboxes.

In Australia this week, Mr Oliver said: "I think school lunch boxes are the wild west. "Diet-related disease is costing more money to any government in the world - it is a miserable bastard of an epidemic. "So your government needs to catergorically control what is and isn't appropriate in a school lunch, and it needs to educate parents what to put in those lunch boxes."

However, experts closer to home are now warning of a new health crisis with children confused about the anti-obesity message.

"We are just starting to see in the figures the fallout from the 'thin at all costs' anti-obesity message being forced on our kids," said Desi Achilleos, the co-ordinator of Eating Disorders Association Resource Centre.

"The message is not working for children who are overweight and is creating a class of self-loathing healthy-weight children.

"In 2010-11, we dealt with 47 per cent more primary school children than the previous year. The youngest was a preschooler.

"Last week I had a call from a guidance officer in a state school asking my advice about a Grade 2 child, a six-year-old girl who refuses to eat. She says that she hates her body and no one will marry her if she's ugly."

A staff member at the group was told of a healthy-weight primary school child being picked on by friends for having a muffin in her lunchbox.

The association is putting much of the blame at the feet of the state's schools. Damning feed-back from clients paints a picture of schools using food diaries, classroom weigh-ins and public humiliation.

"There are horror stories, but as a whole primary schools are well-meaning and adhering to curriculum guidelines, but nutrition needs to be taught in a broader context of collective health. We would recommend more collaboration with parents and caregivers - they are making the food choices for kids," Ms Achilleos said.

Brisbane GP Leanne Barron, who treats kids with eating disorders, said: "I have seen a five-year-old who has lost 3kg in one school year because she is so frightened of taking 'unhealthy' food and of not being able to eat the quantity of 'approved' foods in her lunch box.

"Fanaticism by the broader community has led to classroom weighing, lunchbox nazi-checks by teachers and schools vying to have the 'healthiest tuckshop' while in their playgrounds underweight children and teenagers shiver through the heat of Queensland summers, unable to maintain a healthy body temperature."

According to Ms Achilleos: "Queensland schools are doing their best to address nutrition through the Australian Curriculum Guidelines of a 'no-harm' approach."

However, the association is adamant the use of a food diary in some state schools breaks the "no harm" policy and slams any shaming of children for their food choices.

Asking kids to be accountable for their food choices when they are not the ones choosing their food is concerning," Ms Achilleos said. "Also, things like the calling out of sizes of sports uniforms at sports time can be very damaging."

Amanda Dearden, co-ordinator of Isis: The Eating Issues Centre Inc, told The Sunday Mail that Isis, in collaboration with the Queensland Eating Disorders Advisory Group, has met Education Queensland representatives a number of times to express concern about the growing number of young children with eating disorders.

Education Queensland told The Sunday Mail some state schools had hired a nutritionist and acknowledged the presence of food diaries but insisted they were optional.

SOURCE




Cheap acne antibiotic could alleviate symptoms of schizophrenia

This is certainly hopeful but will probably apply only to a subset of schizophrenics. Schizophrenia has a substantial inherited component

A cheap antibiotic usually used to treat acne could alleviate the symptoms of schizophrenia, international studies have found. The National Institute for Health Research will start 175 recruiting patients for a £1.9m UK trial of the drug, minocycline, next month.

The study comes after a chance observation in Japan caused researchers to test the drug in patients with schizophrenia first in Japan itself, and then all over the world. Trials have already been held in Israel, Pakistan and Brazil where schizophrenic patients treated with the drug showed significant improvement.

Scientists believe schizophrenia and other mental illnesses including depression and Alzheimer's disease may result from inflammation in the brain. Minocycline has anti-inflammatory and neuroprotective effects which could account for the positive findings.

The first account of the antibiotic's positive effects appeared in 2007, when a 23-year-old Japanese man was admitted to hospital suffering from persecutory delusions and paranoid ideas. The subject had no psychiatric history and blood tests and brain scans showed nothing unusual. He was started on halperidol, a powerful anti-psychotic drug, but it had no effect. However when he developed severe pneumonia a week later and was prescribed the antibiotic, the infection was cleared and the psychosis resolved within two months.

However, minocycline does not work as a cure. When the patient stopped taking the drug, his psychiatric symptoms got worse again. But another treatment with minocyline made him better again.

The UK trial will recruit patients recently diagnosed with schizophrenia, Jeremy Laurance, a member of the Schizophrenia Commission, told The Independent. Half the patients will take minocycline with their standard anti-psychotic treatment, the other half will take a placebo.

Brain scans will be carried out at the beginnning and end of the year-long trial to compare loss of grey matter which is an effect of schizophrenia. Tests will also measure inflammatory markers in the blood.

Paul Jenkins, CEO of the charity Rethink Mental Illness told MailOnline: 'We welcome the early promise shown by minocycline in treating psychosis in people with schizophrenia.

'Nowhere near enough time or money currently goes into to researching treatments for schizophrenia or other serious mental illnesses, which cause pain and suffering for many thousands of families across the UK.'

SOURCE

Sunday, March 04, 2012

How marijuana clouds the memory

THE link between marijuana and memory loss is well known, but now scientists have found exactly how the drug causes forgetfulness.

Marijuana impairs users' working memory - the ability to retain and use information over short periods of time - a major downside of the medical use of marijuana.

The researchers say the discovery, published in the scientific journal Cell yesterday, could help scientists create medical marijuana that does not impact on a person's memory while still treating their pain.

They said the knowledge of how memory was affected could also be applied to other cells, to help other memory-loss concerns. "We may find a way to deal with working memory problems in Alzheimer's," the researchers said.

French and Canadian neuroscientists found that marijuana users suffered memory loss because the main psychoactive ingredient, THC, affects the support cells of neurons, known as astroglial cells, but not the neurons themselves, as previously thought.

"We have found that the starting point for this phenomenon - the effect of marijuana on working memory - is the astroglial cells," study researcher Giovanni Marsicano said.

The researchers made the discovery after initially investigating why receptors that respond to both THC and signals naturally produced in the brain were found on astroglial cells.

"The study shows that one of the most common effects of cannabinoid intoxication is due to activation of astroglial CB1Rs (cell receptors)," the researchers say.

University of Adelaide pharmacologist Associate Professor Rod Irvine said the effect of marijuana on short-term memory loss was related to dosage. "The heavier the use, the more likely it is to have an impact on memory," he said. "It's probably not going to have an effect on light or occasional users."

Australians are among the world's biggest potheads. A study released late last year found that as many as 14.8 per cent of people aged 15 to 64 had used the drug at least once in the previous year.

Marijuana is not prescribed for medicinal use in Australia, but Prof Irvine said it was a common excuse for many recreational users of the drug.

SOURCE




World’s first biodegradable joint implant grows new joints

Joint replacements have a big history of failure so we can only hope that this version works well

Joint implants should always be made of materials like titanium, so they can last the lifetime of the patient ... right? Well, not according to researchers at Finland's Tampere University of Technology. They've developed a product known as RegJoint, which is reportedly the world's first biodegradable joint implant. Unlike permanent implants, it allows the patient's bone ends to remain intact, and it creates a new joint out of their own tissue.

In arthritic joints, the cartilage that protects the connecting ends of the bones has become compromised. This allows the bones themselves to grate against one another, causing pain and reducing the joint's range of movement. A traditional permanent implant replaces the ends of the affected bones with low-friction man-made material.

RegJoint, however, takes a different approach.

The implant has been in development since the mid 90s, and is intended for use in the small finger and toe joints of osteoarthritis and rheumatoid arthritis patients. It is made from a polylactide copolymer, and is inserted within the joint capsule of the affected digit.

Once in place, it reduces pain by acting as a cushioning spacer between the exposed bone ends, while also also restoring a reasonable range of movement, and keeping the already-compromised cartilage from being damaged further. Additionally, however, it triggers the body to produce new fibrous tissue, which proceeds to gradually replace the implant. According to the university, all that's left eventually is a fully-functioning "neojoint," made from the body's own cells.

Recently, RegJoint received CE Mark approval, which will allow it to be sold within Europe - it has already been used in over 200 patients, in clinical trials. Assisting in its development were Conmed Linvatec Biomaterials and Scaffdex Ltd., which is now bringing the implant to market.

SOURCE

Saturday, March 03, 2012

Smoking, drinking teens are the unhappiest of all.... and fruit and veg is the secret to a good life

This is just a study of social class. It's mainly working class people who smoke, for instance, and being working class in Britain is not a happy experience

Teenagers who smoke, drink alcohol and eat junk food are significantly more likely to be unhappy than their clean- living counterparts, a study has found.

About 5,000 children were questioned on their appearance, family, friends, school and life as a whole, and had their happiness levels rated. Researchers discovered that those who never drank alcohol were between four and six times more likely to have higher levels of happiness than those who did, while those who shunned cigarettes were about five times more likely to have high happiness scores than young smokers.

The authors of the study, based at the Institute for Social and Economic Research at Essex University, used data from Understanding Society, a long-term study of 40,000 UK households, to analyse the home life and health-related behaviour of about 5,000 ten to 15-year-olds.

Their results found that unhealthy habits such as smoking, drinking alcohol and not taking exercise were closely linked to substantially lower happiness scores, even when factors such as family income and parents’ education were taken into account.

Higher consumption of fruit and vegetables, and less eating of crisps, sweets and fizzy drinks, was associated with high happiness levels. Also, the children who played a lot of sport were deemed happier.

Cara Booker, co-author of the research, said that children could be turning to damaging vices to cope with their unhappiness. She said: ‘Another explanation could be that youths who smoke and drink first fit themselves into certain groups that tend to be unhappier, and then they find themselves unhappy. It becomes a vicious cycle.

‘It’s probably a combination of both. Some will take up smoking because they want to feel more adult, but then find themselves hanging out with people who are less happy and then they become less happy.

‘But if you’re participating in sports and have a social group who are also interested in the same things, you’re happier versus not doing much of anything.’

The study found that between the ages of 13 and 15, teenagers’ food consumption became unhealthier – only 11 per cent reported eating five or more portions of fruit and vegetables every day – and their participation in exercise fell. And the figures for alcohol consumption revealed 8 per cent of ten to 12-year-olds admitted having had an alcoholic drink within the last month, rising to 41 per cent among 13 to 15-year-olds.

Dr Booker added: ‘The message [to teenagers] is that you need to be as healthy as possible, and participating in more adult behaviour such as smoking and drinking is not necessarily going to make you happier.’

SOURCE






Bitter orange extract can help you lose weight, lower cholesterol and prevent diabetes (?)

Whether the change in blood lipids observed leads to a longer lifespan is the important question and there is no evidence of that below. They are just generalizing from what they believe about statins

That lifespan claims for statins are dubious has been shown by Kauffman and others. The best explanation for most of the claims seems to be that researchers WANT reality to reflect their theories. See also here.

There is also a large issue with therapeutic compliance. Many of the people who are prescribed statins suffer side effects which lead them to abandon the drugs -- thus distorting any trials they may be in


A fruit extract loved by tea drinkers for the aromatic flavour it lends to Earl Grey tea could help you lose weight, lower cholesterol and protect against diabetes. The bergamot orange, grown in the Mediterranean, is being hailed as ‘nature’s statin’. It contains chemicals called citrus polyphenols that appear to block production of blood fats, boost metabolism and prevent cholesterol absorption in the gut.

Doctors who gave the extract to heart patients and diabetics claim dramatic benefits. Some of their patients have avoided taking statins, which may have side-effects.

Research on more than 200 patients with high levels of blood fats, carried out by the University of Cantanzaro in Italy, found ‘bad’ cholesterol (LDL) reduced by 39 per cent after a month of taking the extract. It also reduced blood sugars by 22 per cent and raised ‘good’ cholesterol by 41 per cent.

But Cathy Ross, of the British Heart Foundation, said: ‘This was a small study and more robust research is needed.’

The extract, which is marketed as BergaMet and comes from Australian firm NatHealth Solutions, is awaiting approval as a food supplement in the UK.

Given as a 1000mg tablet to be taken before meals it also reduced blood sugars by 22 per cent and raised 'good' cholesterol by 41 per cent. Each tablet is made of the extract and pulp of bergamots grown on the coast of Calabria in Italy.

Lead researcher Dr Vincenzo Mollace, Professor in the faculty of pharmacology at the University of Cantanzaro said: 'Bergamot contains extremely large amounts of polyphenols, as compared to other citrus species.

'Two of these, Brutelidin and Metilidin, directly inhibit cholesterol biosynthesis in a similar way to statins and they are not found in any other citrus derivatives.'

In separate research, a leading cardiologist in Australia is giving BergaMet to more than 700 patients, some of whom have avoided the need for statins, while others are on a reduced statin dose but are still seeing major reductions in harmful cholesterol, but with the added benefit of protection from diabetes because their blood sugars are regulated.

Another benefit is patients have lost weight. In one case, a male patient weighing a staggering 26st lost over 2st in just a month on BergaMet.

Around one in four adults in the UK is thought to have a genetic predisposition to develop insulin resistance, meaning that weight gain and a lack of exercise puts them at a higher risk of raised blood sugars and diabetes. This is often coupled with high cholesterol, high blood pressure and a tendency to blood clots - so-called metabolic syndrome.

Dr Ross Walker, of Sydney Adventist Hospital and in private practice in Sydney, said: 'I have found in all of my patients who were overweight, there has been abdominal fat loss with BergaMet.

'It is not as powerful as statins in lowering cholesterol and if you have had a heart attack, vascular disease or have a high family risk then statins are what you should have, but statins do not suit everybody and BergaMet has the added advantage of lowering blood sugars.

'Plus, we have seen a significant reduction in arterial stiffness with the bergamot extract which is helpful in protecting against arterial disease. In some patients I have halved the dose of statins they are on because of BergaMet.

'This is a safe, natural product for combating high cholesterol and metabolic syndrome which is showing very promising results, remarkably with no significant side effects.'

BergaMet blocks the same enzyme responsible for cholesterol production as statins, but works at a different site on the enzyme, meaning it does not appear to have side effects in the muscles and the liver.

It also has a direct effect on cell membranes so that sugar is able to enter the cells of the body and insulin resistance and metabolic syndrome are reduced.

BergaMet is available on the internet and costs around £34 for a month’s supply but is awaiting approval as a food supplement by UK regulatory authorities before it can be sold here. NatHealth Solutions are in talks with major high street pharmacies who are hoping to have it on the shelves by the summer.

SOURCE

Friday, March 02, 2012

Taking a daily vitamin pill could prevent skin cancer, scientists claim

Utter rubbish. If vitamin A taken through a tablet works, it should also work when taken in food. It doesn't. Maybe all that has happened is that pill takers are more likely to guard their health and stay out of the sun more.

Some other good points at the end of the article


A daily vitamin pill could help prevent skin cancer - particularly among women, it has emerged. Scientists say taking food supplements containing vitamin A can make people less likely to develop melanoma, the deadliest form of the disease. A study found that retinol - a key component of Vitamin A - could protect against the illness.

The strongest protective effects were found in women and in sun exposed sites, suggesting retinol actually combats skin cancer.

However, there was no association between dietary intake of vitamin A, found in liver, eggs and milk, and a reduction in risk.

There was also no reduced risk seen by the intake of carotenoids, which are abundant in vegetables including carrots and tomatoes and soak up compounds that can damage the skin.

Previous research with mice has shown retinol and carotenoids can shrink melanoma tumours and improve survival. Retinol is also good for the immune system and eyesight

So dermatologist Dr Maryam Asgari and colleagues analysed the disease risk in 69,635 men and women aged between 50 and 76 who consumed vitamin A through either dietary or supplementary methods.

Their findings, published in the Journal of Investigative Dermatology, found those who used retinol regularly were 60 per cent less likely to develop skin cancer, rising to 74 per cent among participants on the highest doses of more than 1,200 mg a day.

Dr Asgari, of the Kaiser Permanente Northern California Division of Research in Oakland, said: 'Our data suggest a possible interaction between supplemental retinol use and the anatomic site of melanoma, with sun-exposed sites showing a stronger protective effect than sun-protected sites. 'It may be that retinol's effects may be mediated by sunlight exposure. This intriguing possibility warrants further exploration in future studies.'

Retinol belongs to a class of compounds called retinoids that have been shown to stop cells dividing and spreading.

Dr Asgari said: 'In summary, our data, which are based on a large prospective cohort, suggest retinol intake from individual supplements is associated with a reduction in risk for melanoma, especially among women. 'Our findings suggest vitamin A supplementation may hold promise as a chemopreventive agent for melanoma.'

Skin cancer is the most common type of cancer among white populations, in the UK and worldwide. Most are easy to treat and pose only a small threat to life, but melanoma is difficult to treat unless detected early.

Over the past 25 years, rates of melanoma in the UK have risen faster than any other common cancer. About 1,800 people die from melanoma annually in the UK. Even so, nearly 80 per cent of men and over 90 per cent of women are alive at five years following treatment.

However, Dr Claire Knight, senior health information officer at Cancer Research UK, said: 'We don't recommend people start taking retinol supplements based on this study, particularly as high doses can be toxic.

'The result was based on a very small number of people with melanoma, and the authors didn't account for other important factors that influence the risk of skin cancer, such as the number of moles a person has. "And crucially, when the authors looked at whether a particular dose was linked to risk, the link between retinol and melanoma disappeared.'

SOURCE







Can fasting for two days each week stop dementia?

This is still mostly theory but there may be something in it

One day in the not-so-distant future, you may find yourself receiving some unusual health advice from your GP: fast two days a week to prevent your brain shrinking with age. You might be given the same advice to lower your risk of heart disease and diabetes — and even tackle cancer.

Fasting was a common medical treatment in the past, but now new research suggests there may be good reason for it to make a comeback. This is because it seems to trigger all sorts of healthy hormonal and metabolic changes.

Researchers have long known that cutting back animals’ calories over an extended period can make them live up to 50 per cent longer — it’s been harder to prove benefits in humans because few people can stick to this restrictive regimen.

But there’s now emerging evidence to show occasional fasting — which is much more manageable — also carries benefits. Fasting days involve eating between 500 and 800 calories (the usual daily intake for a woman is 2,000 calories, for a man, 2,500).

This intake appears to cause a drop in levels of growth-factor, a hormone linked with cancer and diabetes, as well as a reduction in ‘bad’ LDL cholesterol and triglycerides (fats) in the blood.

Meanwhile, free radicals — the damaging molecules linked to disease — are dampened down. Studies also suggest that levels of inflammation can fall. And now there is the suggestion that fasting protects the brain, too.

‘Suddenly dropping your food intake dramatically — cutting it by at least half for a day or so — triggers protective processes in the brain,’ explains Professor Mark Mattson, head of neuroscience at the U.S. National Institute On Ageing.

‘It is similar to the beneficial effect you get from exercise.’ This could help protect the brain against degenerative diseases such as Alzheimer’s and Parkinson’s.

Professor Mattson is one of the pioneers of research into fasting — a few years ago he made a breakthrough when he found rats could get nearly all the benefits of calorie restriction if the scientists only cut back their calories every other day. On the next day the rats could eat as much as they liked and yet they showed the same benefits as rats on a low-calorie regimen all the time.

Suddenly it looked as if humans could benefit from a form of calorie restriction regimen that, unlike daily restriction, is feasible to follow. Now results of other trials are revealing the benefits.

In one study, reported last year in the International Journal of Obesity, a group of obese and overweight women was put on a diet of 1,500 calories a day while another group was put on a very low 500-calorie diet for two days, then 2,000 calories a day for the rest of the week.

Both groups were eating a healthy Mediterranean-style diet. ‘We found that both lost about the same amount of weight and both saw a similar drop in biomarkers that increase your risk of cancer,’ says Dr Michelle Harvie, a dietitian at Manchester University who led the research.

‘The aim was to find which was the most effective and we found that the women in the fasting group actually had a bigger improvement in sensitivity to insulin.’ Improved insulin sensitivity means better control of blood sugar levels.

Last year researchers at Newcastle University reported that they had reversed diabetes in a small number of overweight people by putting them on an 800-calorie diet for eight weeks.

It’s possible that eating small amounts of calories every other day, as Dr Harvie’s study allowed, is not only more bearable, but may be particularly effective at getting diabetics’ blood sugar under control. Now Professor Mattson has been investigating the benefits of various fasting regimens on the health of our brain cells.

According to an article that will be appearing in the leading science journal Nature Neuroscience next month, calorie restriction can protect the cells from damage and make them more resistant to stress.

‘Part of this effect is due to what cutting calories does to appetite hormones such as ghrelin and leptin,’ he explains. ‘When you are not overweight, these hormones encourage growth of new brain cells, especially in the hippocampus.’

This is the area of the brain which is involved in laying down memories. If you start putting on weight, levels of ghrelin drop and brain cell replacement slows. ‘The effect is particularly damaging in your 40s and 50s, for reasons that aren’t clear yet,’ he says. ‘Obesity at that age is a marker for cognitive problems later.’

The good news is that this brain-cell damage can be reversed by the two-day fasting regime, although so far Professor Mattson has shown this only in rats. A human trial is starting soon. There is reason to think it should work. Fasting every other day had a striking effect on people with asthma in a small study he ran a few years ago.

‘After eight weeks they had lost eight per cent of their body weight, but they also benefited from the ability of calorie restriction to reduce inflammation. Tests showed that levels of inflammation markers had dropped by 90 per cent. As levels came down, their breathing became much easier,’ says Professor Mattson.

But he cautions that patients have to stick to the diet, as symptoms began to return two weeks after giving it up. Not everyone will find fasting intermittently is something they can manage. In Dr Harvie’s recent study of overweight women, more patients in the continuous dieting group (who had to stick to 1,500 calories a day) wanted to continue with it than those on the two-day fasting regimen.

‘It’s going to suit some people more than others,’ she says. ‘For some, being able to cut out 3,000-4,000 calories in two days and then eat normally for the rest of the time is much more attractive than cutting back a little every day; for others it’s too drastic. It gives us another option. My experience is men seem to adapt better to it than women.’

But Professor Mattson believes these new fasting regimes could help tackle our failure to live more healthily. ‘This research shows that successful brain ageing is possible for most individuals if they maintain healthy diets and lifestyles throughout their adult life,’ he says.

The trouble is, we don’t — our diets are too high in calories and we don’t do enough exercise, which is why, he says, brain diseases such as Alzheimer’s are on the rise. Dr Susan Jebb, head of diet and population health at the Medical Research Council agrees that losing weight is about the healthiest thing many of us can do. ‘If this approach can help people do that I’m all for it,’ she says.

But whether fasting could be used as a way of treating people at raised risk of heart disease or dementia, it is really too early to say, adds Dr Jebb. ‘There needs to be more trials with more people for longer to work out all the possible effects.’

So is there any harm in trying a little intermittent fasting ourselves? As a result of his research, Professor Mattson now keeps his own calorie intake down.

‘I aim for about 1,800 calories a day, nothing drastic,’ he says. ‘During the week I don’t have any breakfast or lunch but I have a good evening meal. I know it’s not what most dietitians would recommend but it works very well for me.’

However, Dr Jebb advises against fasting. ‘We don’t know what it does to the metabolism over time and it could also have a damaging effect on people’s eating patterns. If people have been heavily restricted for a couple of days they might feel that gave them a licence to over-eat.’

Meanwhile the British Dietetic Association has warned that frequent fasting could raise the risk of osteoporosis and infertility. There is still much scientists don’t understand about the effect of fasting. If the benefits are as big as the research suggests, there may be many willing to try it.
But experts advise always speaking to your doctor before embarking on such a regimen.

SOURCE

Thursday, March 01, 2012

A daily dose of fish oil helps keep your brain young?

There are two large holes in this crap.

1). They just pick out one blood component, find it correlates with smaller brains and ASSUME that it is the causative factor. If they had done a full range of blood tests they would probably have found half a dozen components that correlated with smaller brains.

2). Once again they overlook social class. Middle class people are probably more zealous about following official diet advice and so do have more fish-oil in their diet. But they are smarter anyway and so also have slightly bigger brains. So all that the researchers have found is the usual: That middle class people are smarter. Fish-oil need have nothing to do with it


Eating fish helps keep your brain young, claim scientists. They found diets lacking an essential nutrient in oily fish may hasten brain shrinkage and mental decline. People eating the least amount of omega-3 fatty acids had less brain mass - equivalent to about two years of chronological ageing.

Low levels of omega-3 fatty acids were also associated with poor test scores for visual memory, problem solving, multi-tasking and abstract thinking.

It is thought that omega-3 fatty acids in fish oils may reduce inflammation of the brain and play a part in brain development and nerve cell regeneration. Britons are currently advised to eat fish at least twice a week, including one portion of oily fish.

In a new study, brain scans carried out on 1,575 people with an average age of 67 showed a greater rate of brain shrinkage in those who lacked docosahexaenoic acid (DHA).

DHA is an omega-3 fatty acid that is thought to help nerve cells communicate with each other. The richest source of the nutrient is oily fish, such as herring, mackerel and sardines.

Dr Zaldy Tan, an Alzheimer’s researcher from the University of California at Los Angeles, who led the US research reported in the journal Neurology, said: 'People with lower blood levels of omega-3 fatty acids had lower brain volumes that were equivalent to about two years of structural brain ageing.'

The study involved magnetic resonance imaging (MRI) brain scans and tests for mental function and omega-3 fatty acids in red blood cells. Participants whose DHA levels were among the bottom 25 per cent had smaller brains than those with higher DHA levels.

Low levels of all omega-3 fatty acids were also associated with poor test scores for visual memory, problem solving, multi-tasking and abstract thinking.

The best dietary source of omega 3 fatty acids is oily fish because the human body cannot produce omega-3 fatty acids.

There has been an explosion in the number of foods fortified with omega-3 oils, such as chickens, margarine, eggs, milk and bread, but they contain only small amounts. Types of fish that contain high levels include tuna, salmon, mackerel, herring, sardines, and anchovies. White fish is also a healthy food including cod, haddock and plaice although it contains lower levels of essential fatty acids.

Fish oil supplements are recommended as protection against heart attacks and sudden death, with regular fish eaters a third more likely to survive a heart attack.

Omega 3 fats work in several ways to reduce heart attack risk by cutting blood fats, reducing the chances of a blood clot and blocking dangerous heart rhythms that might otherwise prove fatal.

Dr Marie Janson, Director of Development at Alzheimer’s Research UK, the UK’s leading dementia research charity, said: 'There has been a lot of research into the effects of omega 3, and this study will add to that debate.

'One strength of this study is that it used blood samples to measure people’s dietary intake of omega 3, rather than relying on answers to questionnaires to assess the link between omega 3 and cognition. 'However this research does not tell us whether the people studied got worse or better over time.

'We would need to see large-scale, long-term studies before we can know whether a diet high in omega 3 can protect against dementia, and people shouldn’t fill their freezers with oily fish just yet.

'The best evidence for reducing your risk of dementia is to eat a healthy, balanced diet, take regular exercise and keep your blood pressure and cholesterol in check.

'With 820,000 people affected by dementia in the UK, and a rapidly ageing population, we urgently need to find ways to prevent and treat the condition - that means we must invest in research.'

SOURCE




The truth about statins is slowly getting out

U.S. health regulators will add warnings to the labels of widely used cholesterol lowering drugs, such as Lipitor, to indicate that they may raise levels of blood sugar and could cause memory loss.

The Food and Drug administration announced the changes to the safety information on the labels of statins such as Pfizer Inc's Lipitor, AstraZeneca's Crestor and Merck & Co's Zocor.

Statins have been shown to significantly reduce the risk of heart attack and heart disease, and the FDA said the new information should not scare people into stopping taking the drugs.

'The value of statins in preventing heart disease has been clearly established,' Amy Egan, deputy director for safety in FDA's Division of Metabolism and Endocrinology Products, said in a statement. 'Their benefit is indisputable, but they need to be taken with care and knowledge of their side effects.'

Lipitor, which became available late last year in generic form as atorvastatin, is the world's all-time biggest selling prescription medicine with cumulative sales of over $130 billion.

The generic version of Zocor, simvastatin, in 2010 was the second most widely prescribed drug in the United States, according to IMS Health.

The FDA said it was aware of studies in which some patients taking statins may have a small increased risk of higher blood sugar levels and of being diagnosed with type 2 diabetes.

The statin labels will also now reflect reports of certain cognitive effects such as memory loss and confusion experienced by some patients taking the drugs, the agency said. It said those reports generally have not been serious and the symptoms were reversed by stopping use of the statin.

One safety warning long associated with the class of medicines will be reversed, the FDA said: Patients taking statins will no longer need routine periodic monitoring of liver enzymes.

'FDA has concluded that serious liver injury with statins is rare and unpredictable in individual patients, and that routine periodic monitoring of liver enzymes does not appear to be effective in detecting or preventing this rare side effect,' it said.

Other statins, most of which are available as generics, include Livalo, Mevacor, Pravachol, Altoprev and Lescol. There are also combination medicines that include statins, such as Merck's Vytorin and Abbott Laboratories' Simcor.

The agency also said Merck's Mevacor, the world's first approved statin, known generically as lovastatin, should never be taken with certain drugs used to treat HIV and certain bacterial and fungal infections due to increased risk of a serious muscle disease.

SOURCE

Wednesday, February 29, 2012

Mother love gives kids a head start?

Groan! More epidemiological naivety. Middle class mothers probably treat their kids better and also have higher IQs. And high IQ tends to go with bigger brain size. No effect of "mother love" is shown in this research at all

THE power of a mother's love is so great it can cause a child's brain to grow larger. Scientists found that love and nurturing in a child's first years can be measured in the size of the hippocampus, the brain's centre of learning.

That part of the brain, also linked to memory and dealing with stress, is up to 10 per cent larger in children raised in a loving environment.

Using MRI scans in a study of 92 children, US researchers from Washington University in Missouri found emotional support was "strongly predictive" of the size of the hippocampus by school age.

"The finding that early parenting support is directly related to healthy development of a key brain region opens an exciting opportunity to impact the development of children in a powerful and positive fashion," the study said.

SOURCE





Sleeping pill users 'up to five times more likely to die early'

Probably because people who are unwell to start with often need pills to get to sleep. Some healthy skepticism expressed towards the end of the article below

Sleeping pills used by millions of Britons may increase the risk of early death more than five-fold, warn researchers. The higher the dose, the greater the risk. Those on higher doses also have an increased risk of cancer.

But a study suggests even patients taking fewer than 18 pills a year are more likely to die prematurely than those not on medication.

The findings come from U.S. research, but most of the drugs involved are commonly prescribed in Britain. They include benzodiazepines such as temazepam and diazepam, newer sedative hypnotics zolpidem, zopiclone and zaleplon, and barbiturates and sedative antihistamines.

British experts said worried patients should not stop taking the pills but talk to their GPs first.

The study found those prescribed sleeping pills were 4.6 times more likely to die during a two-and-a-half-year period compared with those not on the drugs.

Those taking the lowest doses – four to 18 pills a year – had a 3.6 times higher risk of dying compared with non-users.

But the study, conducted by researchers at the Jackson Hole Centre for Preventive Medicine in Wyoming and the Scripps Clinic Viterbi Family Sleep Centre in California, found the risk was greater at higher doses.

Those taking 18 to 132 pills a year had a 4.4 times higher risk of dying, while those on more than 132 pills a year were 5.3 times more likely to die.

Those taking the highest doses each year accounted for 93 per cent of prescriptions in the study.

This group was also 35 per cent more likely to develop a major cancer. For the drug zolpidem, the risk of death was 5.7 times higher, and for temazepam 6.6 times higher.

The effects were greatest among 18 to 55-year-olds, although the reasons are not clear. Just over 10,500 patients taking sleeping pills were compared with 23,500 not on the drugs, and the study took into account pre-existing illnesses.

The researchers concluded non-drug treatments such as cognitive behaviour therapy may be more successful and NHS guidance backing 'even short-term use of hypnotics' should be reconsidered. Writing in BMJ Open, they said: 'The meagre benefits of hypnotics, as critically reviewed by groups without financial interest, would not justify substantial risks.'

The journal's editor-in-chief Dr Trish Groves added: 'Although the authors have not been able to prove that sleeping pills cause premature death... these findings raise important concerns.'

Insomnia prescription figures show that in 2010 in England, 2.8million were given for temazepam and almost 5.3million for zopiclone. There were also more than 725,000 prescriptions for zolpidem and more than 9,400 for zaleplon.

Malcolm Lader, professor of clinical psychopharmacology at the Institute of Psychiatry at King's College London, said patients should discuss any concerns they had with their GPs but 'should not under any circumstances stop taking their medication' suddenly.

He added: 'I agree these drugs do have problems, but I find some of these results difficult to accept. 'The main one is that with 18 doses a year you have three times the mortality – that's quite incredible, because you would have people dropping like flies. 'We need to hold judgment until we have further studies.'

SOURCE

Tuesday, February 28, 2012

Cellphones cleared again

Some pesky findings for the freaked-out brigade. Since 1987, brain tumors have actually DECREASED among young men, for instance -- despite the big rise in mobile phone use over that period. Maybe cellphones are actually GOOD for your health! Students of hormesis would find that plausible
Mobile Phone Use and Incidence of Glioma in the Nordic Countries 1979–2008: Consistency Check

By Deltour, Isabelle et al.

Abstract:

Background: Some case-control studies have reported increased risks of glioma associated with mobile phone use. If true, this would ultimately affect the time trends for incidence rates (IRs). Correspondingly, lack of change in IRs would exclude certain magnitudes of risk. We investigated glioma IR trends in the Nordic countries, and compared the observed with expected incidence rates under various risk scenarios.

Methods: We analyzed annual age-standardized incidence rates in men and women aged 20 to 79 years during 1979–2008 using joinpoint regression (35,250 glioma cases). Probabilities of detecting various levels of relative risk were computed using simulations.

Results: For the period 1979 through 2008, the annual percent change in incidence rates was 0.4% (95% confidence interval = 0.1% to 0.6%) among men and 0.3% (0.1% to 0.5%) among women. Incidence rates have decreased in young men (20–39 years) since 1987, remained stable in middle-aged men (40–59 years) throughout the 30-year study period, and increased slightly in older men (60–79 years).

In simulations, assumed relative risks for all users of 2.0 for an induction time of up to 15 years, 1.5 for up to 10 years, and 1.2 for up to 5 years were incompatible with observed incidence time trends. For heavy users of mobile phones, risks of 2.0 for up to 5 years' induction were also incompatible.

Conclusion: No clear trend change in glioma incidence rates was observed. Several of the risk increases seen in case-control studies appear to be incompatible with the observed lack of incidence rate increase in middle-aged men. This suggests longer induction periods than currently investigated, lower risks than reported from some case-control studies, or the absence of any association.

Epidemiology. 23(2):301-307, March 2012.






How walking the dog can be harmful to your health: 'Man's best friend' may cause high number of injuries

I don't this will make many dog-owners give up their dog, however. I must say, though, that tripping over cats and dogs is a regular hazard if you have them around the house

The regular walks and companionship that come with owning a dog are known to aid fitness and wellbeing. But it turns out that man’s best friend may be more likely to harm health than help it.

They may be responsible for a worryingly high number of injuries needing emergency hospital treatment, researchers say.

Over only two months, doctors at one hospital noted 37 cases of patients needing treatment for broken bones, soft tissue injuries and head wounds caused by dogs.

Sixteen of them needed surgery. Most were pulled over by their pet while it was on a lead, while others tripped while out walking, fell over leads or were knocked over as their dog ran towards them.

Doctors were so surprised by the results – which suggest the hospital deals with more than 200 dog-related injuries a year – that they concluded the risks to dog owners’ health may ‘offset any benefits’.

‘We have shown that dog-related injuries are common, particularly in the elderly,’ said Dr Henry Willmott of the Conquest Hospital in Hastings, East Sussex.

‘The presence of a dog in the house should be taken into consideration when the risk of falls is being assessed and dog obedience training should be considered. I am sure that this is a common phenomenon across the UK.’

He added: ‘Elderly women walking their dog on uneven ground were most at risk of injury. Some of the injuries were serious and resulted in considerable morbidity.’

Dr Willmott suggested more elderly women than men were hurt because they are more likely to have weaker bones due to osteoporosis.

The study, published in the journal Accident Analysis and Prevention, is the first to look at how many injuries – other than biting – dogs cause. Previous research has shown owning a dog can ward off depression, lower blood pressure and even combat obesity.

Dogs have been shown to reduce the risk of developing eczema and may be able to sniff out cancer before symptoms develop.

SOURCE

Monday, February 27, 2012

Fish oil could save billions (?)

This just assumes what it has to prove

GIVING fish oil supplements to patients with cardiovascular disease could save the economy up to $4.2 billion, an economic report from Deloitte Access Economics says.

Researchers analysed the cost benefit of using fish oil supplements taking into account the cost to the economy of the number of years lost due to ill health, disability or death.

The Complementary Healthcare Council of Australia, which commissioned the report, believes the findings will help make the case for making fish oil exempt from GST or a candidate for subsidy under the federal government's Pharmaceutical Benefits Scheme.

"Fundamentally that would be a very good outcome for the general population health and a great outcome for the health budget," the council's consumer affairs director, Justin Howden, said. No complementary therapies are GST free or available on the PBS.

The Deloitte report, which will be released on Tuesday, found that patients spent an average of $112.15 a year on fish oil treatments.

Mr Howden acknowledged that a PBS subsidy or GST exemption for complementary medicines would require a radical shift in government policy. "This report is just part of public policy discussion," he said. "It is the start of a very long process, probably up to five years."

Dr Steve Hambleton, the president of the Australian Medical Association, said the Pharmaceutical Benefits Advisory Committee would require conclusive evidence that fish oil supplements work before considering them for inclusion in the scheme.

Organisations that have endorsed the cardiovascular benefits of fish oil include the National Health and Medical Research Council of Australia, the National Heart Foundation of Australia, and the WHO.

SOURCE





Workers who burn calories at the gym are less depressed

Exercise does seem to have an antidepressive effect but the study below is just epidemiology so doesn't prove it. Some people who did little exercise were probably in poor health -- and that can be pretty depressing

The last thing you may want to do after a long day at work is to pull on your tracksuit and pound out a few miles on the treadmill. But making the effort to head to the gym a few times each week can dramatically improve your mood on the job, say scientists.

A team from Tel Aviv University found that employees who managed to exercise for a few hours a week were half as likely to experience a decline in mental health than those who did no physical activity.

The researchers, led by Dr Sharon Toker, discovered that working out for four hours a week provided the most benefit in reducing the risk of burning out or developing depression.

Depression is a clinical mood disorder while burnout is defined by physical, mental and emotional exhaustion. However, Dr Toker said both contribute towards a 'spiral of loss' where the loss of one resource, such as a job, could have a domino effect and lead to the loss of other resources such as one's home, marriage, or sense of self-worth.

The research, published in the Journal of Applied Psychology, assessed the personal, occupational, and psychological states of 1,632 healthy Israeli workers in both the private and public sectors.

The participants were divided into four groups: one that did not engage in physical activity; a second that did 75 to 150 minutes of physical activity a week; a third that did 150 to 240 minutes a week; and a fourth that did more than 240 minutes a week.

They completed questionnaires when they came to medical clinics for routine check-ups and had three follow-up appointments over a period of nine years.

Depression and burnout rates were clearly the highest among the group that did not participate in physical activity. The more physical activity that participants engaged in, the less likely they were to experience elevated depression and burnout levels during the next three years.

The team found those who engaged in at least four hours of exercise displayed almost no symptoms of mental strain. But Dr Toker said even 150 minutes a week helped workers improve their self-esteem and ability to work.

She added that far-sighted employers would benefit by building a gym on company grounds or subsidising memberships to gyms in the community, and by allowing for flexible work hours to encourage employees to make physical activity an integral part of their day.

Such a strategy, she concluded, pays business dividends in the long run.

SOURCE

Sunday, February 26, 2012

Nursing a broken heart? How taking a paracetamol could dull the pain of rejection

I've heard of people taking aspirin to get to sleep but this is a surprise. The evidence they offer seems fairly good but a lot more exploration would seem needed

It's what songwriters have been saying for years, and now scientists agree – love really does hurt. But what the ballads don’t tell us is that a simple dose of paracetamol could help ease the pain of a broken heart.

The rather prosaic cure emerged in a study by neuroscientists which found that emotional pain is processed in the same area of the brain as physical pain. They also discovered that hurt feelings – such as being dumped by a partner – can respond to painkillers.

In a three-week trial at the University of California, 62 people were told to take either Tylenol – the American name for paracetamol – or a placebo and then record how they felt every night.

The study found those who took 1,000mg of the painkiller, or around two tablets, showed a ‘significant reduction in hurt feelings’ compared to those taking the placebo.

Another test involved participants taking part in a computer game which was devised to make some of them feel rejected.

At the same time they had brain scans, which showed the pain of being socially rejected was processed in the same area of the brain as physical pain – in the anterior cingulate cortex.
noticed a correlation between brain activity in people who had experienced social rejection and others who had experienced physical pain.

The scientists saw a correlation in the brain activity of people who had experienced social rejection and physical pain. The test was then repeated, with some of the group on painkillers. This group had less pain-related activity in their brains than those on a placebo.

Dr Naomi Eisenberger, an assistant professor of social psychology, said: ‘Rejection is such a powerful experience for people. If you ask people to think back about some of their earliest negative experiences, they will often be about rejection, about being picked last for a team or left out of some social group.

‘It follows in a logical way from the argument that the physical and social pain systems overlap, but it’s still kind of hard to imagine. We take the drug for physical pain; it’s not supposed to work on social pain.’

While the findings could help develop treatment for bereavement, for example, Dr Eisenberger said we should not start taking painkillers after a traumatic experience. Emotional pain is probably a healthy response which tells us not to repeat the behaviour, she said, and dulling it could impair recovery.

SOURCE






A natural recovery from spinal injury!

A teenager who feared she would never walk again, is now preparing for a ballet exam after her spine miraculously healed itself.

Megan Kershaw, 14, was diagnosed with a rare form of liver cancer in 2008, which caused her to collapse at school. During a nine-hour operation to remove three-quarters of the tumour, doctors discovered the cancer had spread to her spine, causing spinal fractures, and for years she was confined to a wheelchair.

It was during treatment that Professor Nick Bishop from Sheffield Children’s Hospital suggested they should try and let the spine heal naturally. Now Megan's back is fully healed and doctors have been amazed by her speedy recovery.

Professor Nick Bishop said: 'The speed of recovery is fantastic and just shows how well children’s bones can recover in this kind of situation. 'Her spine is healing itself without any special treatment from us. The spine’s building blocks, the vertebrae, have growth plates on their upper and lower surfaces. “It is these growth plates that have restored Megan’s vertebral architecture in such an exemplary fashion. 'Megan no longer needs to see me now her spine has healed.'

Her mother Deborah, 48, from Misson, near Doncaster said: 'She is a miracle. It is incredible what has happened and what the body can do. 'She’s back to being a normal healthy child and can do all the things her friends do. 'She has shown tremendous courage through everything and she’s back to her dancing which has helped her very much.'

Megan still needs regular check-ups and is having a scan at the end of March to check on her progress.

The youngster previously hit headlines when Simon Cowell paid for her to go on a trip to Disneyland in Florida for her 13th Birthday. He stepped in when he heard she had made a 'wish board' that included meeting him, Girls Aloud and the dream trip to Disney.

Megan is now preparing for a Royal Academy of Dance ballet exam next month.

SOURCE

Saturday, February 25, 2012

How eating oranges and grapefruit can cut the risk of a stroke by their anti-inflammatory properties

This appears to be just data dredging. "The researchers did not find a beneficial association between total flavonoid consumption and stroke risk", so they looked and looked until they found just one flavonoid with a significant correlation -- which was probably just a random fluctuation

Eating oranges and grapefruit could cut your risk of stroke, claim researchers. Both the whole fruit and breakfast juices appear to protect against having a ‘brain attack’, probably due to their high content of a certain type of antioxidant.

A new study looked at citrus fruit for the first time, rather than a range of fruit and vegetables which have been linked to stroke protection.

The study involved thousands of women taking part in the ongoing Nurses’ Health Study in the US, but experts believe the benefits may also apply to men.

Every year in the UK, approximately 120,000 people have a stroke and 20-30 per cent die within a month, while 300,000 people are living with disabilities as a result.

A research team based at Norwich Medical School in the University of East Anglia investigated the strength of protection from flavonoids, a class of antioxidant compounds present in fruits, vegetables, dark chocolate and red wine.

The study used 14 years of follow-up data provided by 69,622 women who reported their food intake, including details on fruit and vegetable consumption every four years.

The research team examined the relationship of the six main subclasses of flavonoids - flavanones, anthocyanins, flavan-3-ols, flavonoid polymers, flavonols and flavones - with risk of ischemic, hemorrhagic and total stroke.

The researchers did not find a beneficial association between total flavonoid consumption and stroke risk, as the biological activity of the sub-classes differ.

But women who ate high amounts of flavanones in citrus had a 19 per cent lower risk of blood clot-related (ischemic) stroke than women who consumed the least amounts.

The highest level of flavanones was around 45mg a day compared with 20mg a day. A glass of commercial orange juice can provide 20-50mg depending on processing and storage conditions.

In the study, reported in the medical journal Stroke flavanones came primarily from oranges and orange juice (82 per cent) and grapefruit and grapefruit juice (14 per cent).

However, researchers recommended that consumers wanting to increase their citrus fruit intake should eat more whole fruit rather than juice, due to the high sugar content of commercial fruit juices.

Lead researcher Aedin Cassidy, proessor of nutrition, said ‘Studies have shown higher fruit, vegetable and specifically vitamin C intake is associated with reduced stroke risk.

‘Flavonoids are thought to provide some of that protection through several mechanisms, including improved blood vessel function and an anti-inflammatory effect.”

A previous study found that citrus fruit and juice intake, but not intake of other fruits, protected against risk of ischemic stroke and intracerebral hemorrhage.

Another study found no association between yellow and orange fruits and stroke risk, but did link increased consumption of white fruits like apples and pears with lower stroke risk.

An additional study found that Swedish women who ate the highest levels of antioxidants - about 50 percent from fruits and vegetables - had fewer strokes than those with lower antioxidant levels.

More studies are needed to confirm the association between flavanone consumption and stroke risk, and to gain a better understanding about why the association occurs, said Prof Cassidy.

Dr Sharlin Ahmed, Research Liaison Officer at The Stroke Association said ‘We all know that eating plenty of fresh fruit and veg is good for our health. This study suggests that eating citrus fruits in particular, such as oranges and grapefruits, which are high in vitamin C could help to lower your stroke risk.

‘However, this should not deter people from eating other types of fruit and vegetables as they all have health benefits and remain an important part of a staple diet.

'More research is needed in this area to help us understand the possible reasons why citrus fruits could help to keep your stroke risk down.

‘Everyone can reduce their risk of stroke by eating a healthy balanced diet that is low in saturated fat and salt, exercising regularly and ensuring that your blood pressure is checked and kept under control.’

SOURCE






The moron act of branding normal healthy kids as "obese" has now spread to Australia



A MELBOURNE mother is horrified after a child and maternal health nurse labelled her healthy three-year-old daughter "obese".

Helen Karalexis said the incident occurred when she took Viktoria to the Sunshine Child and Maternal Health clinic for a routine check-up on Wednesday.

Ms Karalexis was concerned this was not an isolated case, and that it was sending children the wrong messages.

Her daughter is 108cm tall and weighs 21.1kg - when the nurse put these measurements into the computer, she told her Viktoria was obese. "I said, 'how can you tell me my daughter is obese? Look at her'," Ms Karalexis said. "She's very energetic, she's always outside playing, she's got a lot of muscle, which is heavier than fat."

The nurse recommended Ms Karalexis switch her daughter to low-fat milk, reduce her meal portions and not give her any cordials, soft drinks or fruit juice. "She almost convinced me my daughter was obese," Ms Karalexis said.

Nurses should not be relying solely on a computer program to determine whether a child was obese, but also use discretion and common sense, she said. "It's hard enough trying to get kids to eat as it is, but this could make them start thinking 'I can't eat this because I'm going to get fat'," she said.

Ms Karalexis urged parents suffering a similar experience to seek a second opinion.

A Brimbank City Council spokesman said discussions were being held with Isis Primary Care, which provides maternal and child health services in the area on its behalf, over Ms Karalexis's allegations.

Isis director of community services Michael Girolami said body mass index (BMI), which took into account a child's age, height and weight, was used to determine if a child was in a healthy weight range.

The online BMI assessment tool was available from the US Government's National Centre for Chronic Disease Prevention and Health Promotion, Mr Girolami said. "In this particular case, the child was placed in the 95th percentile, which is defined as "obese" in the chart," he said.

Dietitian Karen Inge said the BMI system had limitations because it measured only height and weight, not body composition, and muscle weighed more than fat.

SOURCE

Friday, February 24, 2012

Damn your low fat diet: How a reformed vegan gorges on all the foods his granny enjoyed... and has never felt better

As the kitchen filled with the smell of caramelised meat, my mouth watered in anticipation of the coming feast: a thick cut of tender steak, fried in butter and olive oil. This was not a regular treat. In fact, for the previous 26 years I’d been a vegan, eschewing not just meat but all animal products.

My diet was an extreme version of the NHS Eat Well regime, which recommends lots of starchy foods and smaller quantities of saturated fats, cholesterol, sugar and red meat.

According to government advice, I was doing everything right — and yet my health had never been worse. My weight had crept up over the years, until in 2008 I was 14½ stone [203lb] — which is a lot of blubber for someone who is 5ft 10in — and was classified as clinically obese.

I waddled around, sweating and short of breath, battling extremely high cholesterol and suffering from chronic indigestion. I was always tired and needed to take naps every afternoon. I had constant headaches and swallowed paracetamol and sucked Rennies like they were sweets.

Worst of all, I had irritable bowel syndrome (IBS), which left me feeling as if I had lead weights in my gut. My belly was bloated and distended after every meal. I was, to use a technical term, knackered.

But that was about to change. In 2010, I decided to give up my supposedly healthy lifestyle and embrace good old-fashioned meat.

From that day on, I ate red meat four or five days a week. I gobbled the fat on chops, chicken skin and pork crackling. I feasted on everything we’re told to avoid. The effects were instant.

Twenty-four hours after eating meat again, all my IBS symptoms had gone. As the weeks and months passed, every aspect of my health improved dramatically. I became leaner, shedding body fat and becoming stronger and fitter. My headaches went away, never to return. Even my libido increased.

It felt like being young again, like coming back to life. But though I felt energised, I was also furious. Furious with myself for sticking to the ‘healthy’ eating advice, which was actually far from a sensible diet. But also furious with the so-called experts who have been peddling this low-fat, high-carbohydrate claptrap for so long that no one thinks to question it.

My maternal grandmother would certainly have challenged it. Like my grandfather, she was born into a poor family in East Yorkshire at the turn of the century and their eating regime was simple: meat and at least two vegetables at every meal, lots of butter and full-cream milk (they would have scorned yogurt as little more than ‘off’ milk), bread, potatoes, cake and puddings.

Nothing would have swayed them from that lifestyle. Had a low-fat diet been suggested by a doctor, Gran would have told him to his face that it was all rubbish and that you needed fat to ‘keep the cold out’.

If she could have seen people buying skimmed milk today, she would have thought they had lost their minds. Getting rid of the best bit of milk? Lunacy.

Late in her life, I recall her scorning the advice on limiting the consumption of eggs because of concerns about cholesterol. On one occasion, she watched in astonishment as a celebrity TV chef made an egg-white omelette. ‘He’s a bloody fool, that man,’ she said.

She was right to be sceptical, it turns out. For years the authorities told us cholesterol-rich foods would kill us — but we’ve since learned that is utter drivel.

While Ancel Keys, the scientist whose research in the Fifties first raised concerns about cholesterol levels, suggested that heart disease was linked to large amounts of cholesterol in the blood, he never claimed those levels were linked to the amount of cholesterol we eat.

‘There’s no connection whatsoever between cholesterol in food and cholesterol in blood,’ he said in a magazine article in 1997. ‘And we’ve known that all along.’

Since then, the NHS’s paranoia about cholesterol in food has been replaced by concerns about saturated fat — found in everything from butter, cheese and cream to pies, cakes and biscuits.

They suggest saturated fat increases the risk of heart disease. But this is open to debate. France has the lowest rate of death from coronary heart disease in Europe, yet the country has the highest consumption of saturated fats.

Gran survived into her 80s and Grandad into his 70s, despite labouring down the pit his whole working life. Did they achieve this by gobbling low-fat spreads, soya oil or skimmed milk? No, they lived on old-fashioned foods such as butter, lard and beef fat. Indeed, a growing body of opinion suggests that the factory-made products that have replaced these staples — vegetable oils, polyunsaturated margarine and spreads — are the real cause of the degenerative diseases that are so common today.

Findings by the Weston A. Price Foundation, a non-profit-making research organisation in America, show most cases of heart attack in the 20th century were of a hitherto little-known form known as myocardial infarction (MI) — a huge blood clot leading to the obstruction of a coronary artery.

MI was almost non-existent in the U.S. in 1910 and was causing no more than 3,000 deaths a year by 1930. However, by 1960, there were at least 500,000 MI deaths a year across the country. It surely can’t be a coincidence that this happened as the U.S. embraced a new diet based on increasingly large portions of highly processed foods and vegetable oils?

Similar changes in the national diet took place in Britain during the early years of my life and I can’t help wondering whether my father might still be alive today if it had not been for this shift.

I grew up in the North-East during the Sixties and had no idea about ‘healthy eating’. Those few people who did fret about their diet were thought of as fussy.

No one thought food was a problem, unless the chip shop ran out of battered sausage on a Friday. We ate suet puddings every week, our bacon and eggs were fried in lard, milk was full-fat — I’m not sure skimmed milk even existed in the Sixties — and we ate eggs every day.

Then, in the Seventies, things changed. We got wealthier and food became cheaper. Mam began buying more cakes and confectionery instead of home-baking. We ate more shop-bought food in general.

She also stopped using lard in the chip pan, opting for Spry Crisp ’n Dry instead. Gran wasn’t pleased. She thought vegetable oil was a new-fangled fad — it was, and that was precisely why Mam liked it. She saw it as moving on, modern and fashionable.

More HERE




Hope for Hep C vaccine

Hepatitis C is mostly a disease of druggies so there is already a good way to avoid it -- stick to legal highs

The disease has caused a 'silent epidemic' in western countries. Figures published yesterday by the Centers for Disease Control and Prevention revealed more people died as a result of Hepatitis C than from Aids in the U.S in 2007. 'One of every 33 baby boomers are living with hepatitis C infection,' said CDC's Dr John Ward.

Left untreated it can cause scarring of the liver and ultimately to life-threatening cirrhosis. The U.S figures revealed there were 15,000 deaths related to the condition in 2007 - three-quarters of whom were middle aged.

The condition is unpredictable - while some may live with the condition their whole lives with only mild symptoms, others can develop serious liver disease even with treatment.

There is currently no vaccine in use to prevent infection in the first place. But, speaking at the Canada Excellence Research Chairs Summit in Vancouver yesterday, Dr Houghton revealed his team is just five years away from creating a useable vaccine.

Dr Houghton and his co-investigator John Law discovered that they could use a single strain of the virus to draw out broad cross-neutralising antibodies against all the different major strains. 'This tells us that a vaccine made from a single strain can indeed neutralize all the viruses out there,' he said.

'It really encourages the further development of that vaccine. This is a really a big step forward for the field of HCV vaccinology.'

Hundreds of thousands of people are infected with hepatitis C annually around the world, with between 20 to 30 per cent developing some form liver disease.

However, Dr Houghton cautions that further testing is required, meaning that it may be five to seven years before the vaccine receives approval.

He added that while it may make some difference in those currently suffering from hepatitis C, the vaccine will mainly be a preventative measure against acquiring the disease.

Lorne Tyrrell, director of the Li Ka Shing Institute at the University of Alberta, said: 'We have a long way to go, but this is a great step.'

SOURCE

Thursday, February 23, 2012

Study questions antidepressant-suicide link

I have always thought this is a problem of taxonomy. Drugs that perk up true depressives may perk up anxious depressives far too much, worsening rather than alleviating their symptoms. So Prozac etc should be given to true depressives only. That it is sometimes foolishly given to anxious depressives as well therefore explains the conflicting findings about suicide etc. A study that made sure that only true (sluggish) depressives got Prozac (etc) would likely show benefit at all ages

The Food and Drug Administration has a blanket warning on antidepressant medications stating they increase the risk of suicidal thoughts and behaviors among kids and young adults, but a new review of clinical data finds no link between suicide and at least two of the medications.

The new analysis, based in part on previously unpublished data, also concludes that treatment with antidepressants decreases the risk of suicide among adults of all ages.

“These results have to instill some additional confidence that prescribing these medications is not necessarily going to lead to suicidal thoughts or behavior,” said Robert Gibbons, a professor at the University of Chicago and lead author of the study, published in Archives of General Psychiatry.

The findings — based on data for kids and adults using fluoxetine (Prozac) and for adults on venlafaxine (Effexor) — are not enough to change everyone’s view of the risks of antidepressants, especially to kids.

“The authors in this study examined the risk of suicidal thinking or behavior associated with one drug, fluoxetine,” said Jeff Bridge, a researcher at Nationwide Children’s Hospital in Columbus, Ohio. “My view is that the weight of evidence shows a small but significant increased risk of suicidal ideation/suicidal behavior in pediatric patients treated with antidepressants.”

Bridge’s position is in line with the FDA’s current stance on suicide risk for children taking antidepressants.

In 2004, the agency asked manufacturers of antidepressants to include what’s called a “black box” warning on its packaging for the medications, alerting physicians, patients and parents to an increased risk of suicide among children taking the drugs. Three years later, the FDA expanded that warning to include young people up to age 25.

Gibbons has long been opposed to the labeling. As an advisory board member to the FDA, he voted against adding the warning to antidepressant packaging. “I didn’t think the data were very convincing, and I was concerned physicians would stop prescribing antidepressants,” he told Reuters Health.

The FDA had looked for any reports of suicidal thinking or action among 4,400 children who were in clinical trials comparing an antidepressant drug to a fake drug called a placebo.

They found that suicidal thoughts or attempts were twice as common among the kids taking an antidepressant, although none of the children had committed suicide.

To get a better handle on the risk of suicide over the course of treatment, Gibbons’ team gathered data from experiments that compared the antidepressants to placebo and that had measured suicide risk from the get-go.

Some results came from a study of adolescents by the National Institute of Mental Health and the rest came from two drug makers, Eli Lilly, which markets Prozac, and Wyeth, whose parent company markets Effexor.

The authors have served as consultants or have received research money from drug makers in the past, but Gibbons said neither company had access to this study — which was funded by the federal government — before it was published.

The analysis found that among the 708 children in the reviewed studies, the risk of having suicidal thoughts or attempts after eight weeks was no different between the kids who took Prozac and the kids who took the placebo.

Although fluoxetine is the only antidepressant drug approved for use in children, doctors can prescribe other drugs “off-label” to treat depression in kids.

“I think it’s premature to extrapolate these findings to other antidepressants,” Bridge told Reuters Health in an email.

The studies in the FDA review that found an increased risk of suicide looked at fluoxetine and eight other drugs.

In Gibbons’ review, treatment with fluoxetine or venlafaxine resulted in a 90 percent decreased risk of suicidal thoughts or behaviors after eight weeks among adults and the elderly, compared to a 79 percent decrease after eight weeks of taking a placebo.

Gibbons said the drop in suicide risk seen in adults was tightly linked to the improvement in depression symptoms. “What that means — and it’s not a surprising result – is if you don’t treat depressive severity, you continue to have a high rate of suicide,” he said.

At the beginning of the studies, children had higher rates of suicidal thoughts and behaviors overall than adults; about 20 percent of kids and three to five percent of adults started out thinking about or attempting suicide.

Gibbons said it was interesting that the kids’ suicide risk didn’t fall like the adults’ did, even though the results indicated the antidepressants did work to relieve the kids’ depression symptoms too. “Suicide and depression are very strongly linked in adults and the elderly, and apparently not so strongly linked in children,” he said.

Bridge said he’d like to see future studies examine whether antidepressants are tied to behavioral problems, such as hostility and agitation, and if an increased risk of those behaviors is related to more suicidal thoughts and behaviors.

As for the black box warning, Gibbons said he would support the FDA in gathering more data to better evaluate whether the warning is warranted, but he would not say whether it should be removed.

The FDA did not respond to requests for comment.

Keri McGrath-Happe, a communications manager at Eli Lilly and Company, wrote in a statement to Reuters Health that “at this time, we do not plan to discuss this matter further with the FDA.”

She added that “some depressed individuals, on treatment and off, have worsening suicidal ideas and acts. It is prudent for clinicians and patients to remain vigilant for this possibility.”

SOURCE





When it comes to food, think global

Becoming a ‘locavore’ won’t save the planet, make you healthier, revive communities or improve food security

Earlier this month, spiked’s deputy editor Rob Lyons took part in a debate at the Canadian Food Summit on the motion ‘The local food movement: good for us and good for the environment’. The other panelists were New York Times columnist Mark Bittman, author and food blogger Sarah Elton, and business journalist Andrea Mandel-Campbell. This is an edited version of Rob’s opening comments.

Let me state my position baldly: there is no problem to which local food - or at least buying your food within some predetermined distance of home - is a good solution. Despite the claims of some campaigners, local food won’t save the planet, it won’t make us healthier, it won’t restore traditional communities and it doesn’t offer greater food security.

The big claim usually made in terms of the environment and local food is that we should be trying to reduce our ‘food miles’. It seems to make sense that the shorter the distance between fork and fork - between the one in the soil and the one on our plate - the better. The trouble with that theory is that transport from field to warehouse to shop is just one small part of the total environmental impact of our food.

Insisting on local food could actually increase the environmental impact of what we eat. Frequently, less energy is used when producing a food crop under ideal growing conditions and then transporting it long distances rather than using extra energy to produce it locally. The classic example is New Zealand lamb, which is produced in that country’s plentiful pasture and then shipped to the UK. Lamb produced in the UK often needs to be fed with grain when pasture is inaccessible, which adds to the cost and environmental impact. On the other hand, filling a huge container ship with frozen lamb and shipping it round the world means the fuel costs for each unit of lamb are actually small. As a result, New Zealand lamb probably has a lower environmental impact than the UK variety and is cheaper, too. Another example would be tomatoes that are grown in hot countries and then shipped to countries with temperate climates. The energy required to grow tomatoes in the UK is often greater than the energy required to ship them from Spain, for example.

Some locavores respond by giving up food that doesn’t grow well in their neck of the woods. Fine, but if you live in a big city like London, for example, you need a pretty broad definition of what ‘local’ means in order to feed yourself. If you come from a region with great agricultural variety that might not be too bad, but the truth is that any local diet must forgo some kinds of food or simply not be terribly local. I’m not aware that Canada or the UK are big producers of tea, coffee, bananas, spices and a whole variety of other foods.

Would people who really care about food, who revel in the joy of discovering new foods from around the world, really now turn their noses up at food products because those foods come from too far away? That seems mad.

This speaks to a major problem with environmentalism, which approaches environmental problems by simply insisting we stop doing certain things, whatever the advantages. In this case, because food that has been transported a long way is seen as a problem, we should just stop importing it. A far better approach is to find ways of getting the advantages without the side effects. If greenhouse gas emissions really are going to become a major problem in the future – and my feeling is that the problem has been overstated – we need to find ways of transporting goods with fewer emissions or adapting to rising temperatures. Sadly, greens seem more intent on finding problems caused by humanity than in finding solutions.

One more thing on this point: if we don’t have specialisation of production, then a return to localised food production would mean using more land to grow food. If we’re not growing food in the most ideal conditions, then to get the same amount of food would mean using more land. That’s particularly true if we also have a return to organic farming methods and crop rotations, as many environmentalists and local-food advocates call for. Where would that land come from? Bringing uncultivated land into production seems to fly in the face of allowing nature to flourish. What’s so ‘green’ about that?

But isn’t local food healthier? Some claim that if you buy direct from the farmer, for example, then perhaps the food is fresher and that may have benefits in terms of retaining nutrients. However, the fact is that those of us who live in countries with cold (or coldish) winters cannot eat fresh food all year round if we restrict ourselves to what can be produced locally. Most of the food we eat is harvested and stored in one way or another for at least three months per year when little food production is possible.

As it happens, freshness is the least significant factor in nutrition. Most people in the developed world have no problem getting all the vitamins and minerals they need, even from that ‘industrialised’ food some people seem to hate. Nutrition is not an issue if people get enough to eat and have some reasonable variety in their diet. It really doesn’t matter how far the food travelled or whether it came from the supermarket or the farm shop. The question of whether food is local or not is a side issue when it comes to health.

Of course, it would clearly be difficult to eat a lot of processed foods if you only did your shopping at the farm gate or the farmer’s market, so you could cut out a lot of sugary, stodgy food in favour of more fruit and vegetables. But if that was a concern for you, it would still be easier and cheaper to cook from scratch using supermarket food. There’s mountains of fruit, vegetables, meat and other ingredients in every store. There’s nothing that is inherently healthier about local food.

But what about local food as a way of reviving community? It just sounds so great: you get together with your neighbours to grow food or to develop relationships with food suppliers and producers and in the process gain a sense of belonging. No more would you be dependent on The Man. Working together with other people towards common goals can be a very liberating thing. But do we really need to get together around food, a problem most people would see as solved by a weekly and relatively inexpensive trip to the supermarket? Why would you spend more money or devote more time and energy to something that already works well?

Moreover, this reveals a narrow conception of community, which ties it to a particular geographical area rather than around sharing ideas and common interests. While many people would like to feel a stronger connection with other people in society, simply rehashing old forms of community seems like a backward step to me.

A good example of this is The People’s Supermarket. This is a store near where I work in London which was set up with great fanfare and a four-part TV series. The idea was to try a different model of shopping. People who live in the local area staff the shop and get discounts in return for their work. It’s modelled on the Park Slope Co-op in New York. The trouble is that people can get those low prices and a wider selection of foods at the branches of mainstream supermarket chains like Tesco, Sainsburys and Waitrose that already operate nearby. Where is the material incentive for people to work to get what is, to all intents and purposes, a poorer service?

Despite the fact that The People’s Supermarket has received not inconsiderable public subsidy, it is struggling to survive because it can’t staff itself from the local community it claims to represent. On the other hand, there are people who hate the supermarkets and Big Food who are prepared to travel from further afield to work there or to support The People’s Supermarket in different ways. In other words, they share a common interest in changing the way we buy food that can’t be reduced to a particular geographical area. Once again, ‘local’ is a side issue.

But what about food security? If we can grow all our own food, then why wouldn’t we? That would make us secure, no matter what else went on in the world, right? Yet we have far more food security now than we did in the past precisely because we trade with the rest of the world. In recent years in the UK, we’ve had summers with low rainfall, so crops were parched and harvests reduced. In years with floods, crops have rotted in the fields under water. In those circumstances, it’s rather a good thing to be able to buy food from places that had better harvests. It is poverty and a lack of access to markets that really create food insecurity.

There’s another important question underlying the debate motion: who, exactly, is ‘us’? Does ‘us’ include, for example, the Kenyan farmer producing green beans for export to the UK or a Caribbean banana grower sending fruit to Canada? If those people do count as ‘us’, then banning imports of their products won’t be very good for ‘us’ at all. In the long run, it is better for farmers in poorer countries to produce valuable food crops for export, and use the money to help develop their own farms and their societies, than to demand that they go back simply to feeding themselves.

To me, locavorism is like survivalism for eco-warriors, though at least you avoid the hassle of learning to use a crossbow or hiding in the woods. Locavorism seems to me to be a backward idea, a way of running away from the world rather than embracing the best aspects of globalisation and trying to solve the teething troubles that arise. Going local certainly won’t ‘save the planet’ and it definitely isn’t good for anyone.

SOURCE