Showing posts with label Signs. Show all posts
Showing posts with label Signs. Show all posts

Friday, 6 January 2012

Vital Signs: Beer and Martinis: Just as Effective as Wine for Longevity?

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AppId is over the quota

Many studies have found an association between the moderate consumption of alcohol and increased longevity, and some have found evidence that wine has a more beneficial effect than other alcoholic drinks.

Now an analysis in the January issue of The Journal of Studies on Alcohol and Drugs suggests that martinis and beer may be just as effective at extending life. Wine may have appeared to be better only because the people who choose it are generally healthier.

Researchers studied 802 men and women ages 55 to 65: 281 low-wine drinkers who consumed less than one-third of their alcohol as wine, 176 high-wine drinkers who consumed two-thirds or more as wine, and 345 abstainers. The drinkers had one to two drinks per day, and researchers followed them for 20 years.

Wine drinkers lived longer than abstainers, and high-wine drinkers longer than low-wine drinkers. But compared with high-wine drinkers, low-wine drinkers were more likely to be older men, to be less active physically, to smoke and to be of lower socioeconomic status. After controlling for these factors, the difference between the two groups of moderate drinkers disappeared.

The lead author, Charles Holahan, a psychologist at the University of Texas, said there may be benefits for older moderate drinkers no matter what kind of alcohol they consume. Still, he added, “The study does not encourage initiating wine consumption as a pathway to better health.”


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Vital Signs: Trace Elements and Levels of Pancreatic Cancer Risk

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A new study has found that high bodily levels of the trace elements nickel and selenium may be associated with reduced risk for pancreatic cancer, and that high levels of arsenic, cadmium and lead may increase the risk.

The study, published online Dec. 19 in the journal Gut, included 118 pancreatic cancer patients and 399 patients with other diagnoses at several hospitals in Spain. Researchers analyzed toenail samples with plasma mass spectrometry, a highly sensitive technique for detecting trace elements.

After controlling for age, sex, smoking, diabetes and other factors, the scientists found that the subjects with the highest levels of arsenic were at twice the risk for pancreatic cancer, compared with those with the lowest concentrations. Those with high levels of cadmium were at three times the risk for pancreatic cancer, while those with the highest levels of lead were at six times the risk.

Those with the highest levels of nickel and selenium, on the other hand, were at significantly lower risk for pancreatic cancer.

Dr. NĂºria Malats, an epidemiologist at the Spanish National Cancer Research Center and the senior author of the new study, said that it was the first to provide these kinds of results with trace elements, and that it did not mean that people should take dietary supplements.


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Vital Signs: Vitamins B, C, D and E and Omega-3 Strengthen Older Brains

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Higher blood levels of omega-3 fatty acids, vitamin B, vitamin C, vitamin D and vitamin E are associated with better mental functioning in the elderly, a new study has found.

Researchers measured blood levels of these nutrients in 104 men and women, whose average age was 87. The scientists also performed brain scans to determine brain volume and administered six commonly used tests of mental functioning. The study is in the Jan. 24 issue of Neurology.

After controlling for age, sex, blood pressure, body mass index and other factors, the researchers found that people with the highest blood levels of the four vitamins scored higher on the cognitive tests and had larger brain volume than those with the lowest levels.

Omega-3 levels were linked to better cognitive functioning and to healthier blood vessels in the brain, but not to higher brain volume, which suggests that these beneficial fats may improve cognition by a different means.

Higher blood levels of trans fats, on the other hand, were significantly associated with impaired mental ability and smaller brain volume.

The lead author, Gene L. Bowman, a neurologist at Oregon Health and Science University, said that the study could not determine whether taking supplements of these nutrients would decrease the risk for dementia. But he added: “What’s the harm in eating healthier? Fish, fruits, vegetables all have these nutrients, and staying away from trans fats is one key thing you can do.”


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Thursday, 5 January 2012

Vital Signs: Blood Pressure Changes in Middle Age Can Affect Heart Risk

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AppId is over the quota
An Innocent in America Room for Debate: Are Teachers Overpaid? China Set to Punish Human Rights Activist A Renewed Optimism for Deals On Wall Street Competing histories across the Strait of Gibraltar contribute to its peculiar exclaves.

‘Glee’ Star Gets His Broadway Turn Medicare should demand evidence that a costly cancer treatment is more effective than cheaper options.

In Nigeria, designating Boko Haram as a foreign terrorist group will only inflame anti-Americanism among Muslims.


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Tuesday, 3 January 2012

Vital Signs: Rise in Resting Heart Rate Linked to Coronary Artery Disease

AppId is over the quota
AppId is over the quota
An Innocent in America Room for Debate: Are Teachers Overpaid? China Set to Punish Human Rights Activist A Renewed Optimism for Deals On Wall Street Competing histories across the Strait of Gibraltar contribute to its peculiar exclaves.

‘Glee’ Star Gets His Broadway Turn Medicare should demand evidence that a costly cancer treatment is more effective than cheaper options.

In Nigeria, designating Boko Haram as a foreign terrorist group will only inflame anti-Americanism among Muslims.


View the original article here