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Lead may be ADHD trigger PDF Print E-mail
Saturday, 30 January 2010 13:25
A U.S. researcher says attention-deficit hyperactivity disorder may be linked to the neurotoxin lead -- still found in some toys, jewelry and water.

Joel Nigg of Oregon Health & Science University in Portland points to lead as an ideal candidate to trigger the developmental disorder called ADHD.

In his article, published in Current Directions in Psychological Science, Nigg offers a causal model in which lead attaches to sites in the brain's striatum and frontal cortex, and acts on the genes in these regions -- causing them to turn on or remain inactive. This disruption in brain activity alters cognitive control, and in turn results in hyperactivity and lack of vigilance.

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Diet changes improve older adults' cholesterol too PDF Print E-mail
Saturday, 30 January 2010 12:44
Older adults can cut their cholesterol levels by revamping their dietary fat intake -- even if they are already on cholesterol-lowering statins, a new study finds.

Conventional wisdom holds that people should follow a healthy diet and get regular exercise to help control their cholesterol and triglycerides, another type of harmful blood fat. But there has actually been little research into how well older adults' cholesterol and triglyceride levels respond to diet changes.

In the new study, researchers looked at the effects of dietary-fat changes among 900 Australian adults age 49 and older who were followed for 10 years. At the outset, 5 percent were taking a cholesterol-lowering medication, usually a statin; a decade later, one-quarter were using drugs to control their cholesterol.

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Omega-3 may reduce risk of dental disease: Study PDF Print E-mail
Saturday, 30 January 2010 12:32
Increased levels of omega-3 fatty acid DHA (docosahexaenoic acid) may decrease the risk of dental diseases, suggests a new study from Japan.

The average number of dental disease events was 1.5 times higher in people with low DHA levels, compared to those with the highest average levels of DHA, according to findings published in Nutrition.

In addition to being a major risk factor for tooth loss, periodontal disease has also been implicated as a risk factor for chronic diseases such as cardiovascular disease (CVD). Since the condition may contribute to the overall inflammatory burden of an individual there are reports that this may increase the risk of cardiovascular disease.

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Vitamin D Supplements Could Fight Crohn's Disease PDF Print E-mail
Saturday, 30 January 2010 12:18
A new study has found that Vitamin D, readily available in supplements or cod liver oil, can counter the effects of Crohn's disease. John White, an endocrinologist at the Research Institute of the McGill University Health Centre, led a team of scientists from McGill University and the Université de Montréal who present their findings about the inflammatory bowel disease in the Journal of Biological Chemistry.

"Our data suggests, for the first time, that Vitamin D deficiency can contribute to Crohn's disease," says Dr. White, a professor in McGill's Department of Physiology, noting that people from northern countries, which receive less sunlight that is necessary for the fabrication of Vitamin D by the human body, are particularly vulnerable to Crohn's disease.

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Top five greenest nations on the planet PDF Print E-mail
Friday, 29 January 2010 12:43
The top five greenest nations on the planet:

1. Iceland

2. Switzerland

3. Costa Rica

4. Sweden

5. Norway

And the US?

According to a global environmental performance index presented today at the annual economic forum in Davos, Switzerland, the United States fell 22 places to 61st.

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Low Vitamin D Levels Linked To Poorer Lung Function In Asthmatics PDF Print E-mail
Friday, 29 January 2010 12:39
Asthmatics with higher blood levels of vitamin D have better lung function than those with lower levels, according to new research from National Jewish Health, in Denver.

The findings have been published online ahead of print publication in the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine.

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Magnesium is good for your memory PDF Print E-mail
Friday, 29 January 2010 00:00
The research by Canadian, Chinese, American and Israeli universities shows that an increase in magnesium levels in brain can boost learning and memory.

After their study on old and young rats which were administered higher levels of brain magnesium, the researchers said they have come to the conclusion that increasing magnesium intake can play be vital for those complaining of fading memory.

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Doctors are addicted to 'every drug under the sun' PDF Print E-mail
Friday, 29 January 2010 00:00
In its first year the clinic has treated NHS staff hooked on drugs including heroin, ketamine, a horse tranquilliser, and methadrone, a drug linked to amphetamines, said Dr Clare Gerada, medical director of the Practitioner Health Programme.

The service also uncovered six cases of undiagnosed psychosis, in which sufferers see things or hear voices.

The clinic was set up amid fears many health professionals were treating themselves or avoiding their local GP or hospital because of worries colleagues could learn of their health problems.

Overall, two of the doctors and dentists treated were reported to to the General Medical Council (GMC), because of fears that they could be putting patients in danger.

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Vitamin D may fight Crohn's disease: Study PDF Print E-mail
Thursday, 28 January 2010 00:00
Vitamin D, touted as the "sunshine cure," might also prevent and fight Crohn's disease, suggests a new study by Montreal researchers.

The discovery has yet to be confirmed by clinical trials, but it raises hopes for the estimated 170,000 Canadians with either Crohn's disease or ulcerative colitis. Canada has one of the highest reported rates in the world for Crohn's disease, a chronic inflammatory bowel disorder that usually affects the lower small intestine.

"Our data suggests for the first time that Vitamin D deficiency can contribute to Crohn's disease," said John White, an endocrinologist at the Research Institute of the McGill University Health Centre.

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Plant flavanoid may help prevent leukemia PDF Print E-mail
Thursday, 28 January 2010 00:00
Eating foods like celery and parsley which contain the naturally occurring flavanoid apigenin may help prevent leukemia, Dutch scientists said Thursday.

Maikel Peppelenbosch of the University of Groningen in the Netherlands said tests showed that apigenin -- a common component of fruit and vegetables -- was able to halt the development of two kinds of cells in leukemia and cut their survival chances.

The findings suggest apigenin could hold promise for preventing leukemia, Peppelenbosch said.

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