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Blocking brain’s ‘internal marijuana’ may trigger early Alzheimer’s deficits, study shows

Blocking brain’s ‘internal marijuana’ may trigger early Alzheimer’s deficits, study shows

A new study led by investigators at the Stanford University School of Medicine has implicated the blocking of endocannabinoids — signaling substances that are the brain’s internal versions of the psychoactive chemicals in marijuana and hashish — in the early pathology of Alzheimer’s disease. A substance called A-beta — strongly suspected to play a key role in Alzheimer’s because it’s the chief constituent of the hallmark clumps dotting the brains of people with Alzheimer’s — may, in the disease’s earliest stages, impair learning and memory by blocking the natural, beneficial action of endocannabinoids in the brain, the study demonstrates. Continue reading

Supplements of calcium, vitamin D may have too much for some older women

Supplements of calcium, vitamin D may have too much for some older women

Calcium and vitamin D are commonly recommended for older women, but the usual supplements may send calcium excretion and blood levels too high for some women, shows a new study published online in Menopause , the journal of The North American Menopause Society. This randomized, placebo-controlled trial included 163 older (ages 57 to 90) white women whose vitamin D levels were too low. The women took calcium citrate tablets to meet their recommended intake of 1,200 mg/day, and they took various doses of vitamin D, ranging from 400 to 4,800 IU/day Continue reading

More soldiers using steroids

More soldiers using steroids

unable to retrieve full-text contentThere has been an increase in soldiers testing positive for steroid use while serving in the army, according to new figures seen exclusively by Newsbeat. Continue reading

Prostate-cancer surgery prices are elusive

Prostate-cancer surgery prices are elusive

Let’s say you’re buying a car. You have a wealth of data at your fingertips, from safety information to performance, to guide your decision. The same is not as true in health care, especially if you’re pricing procedures. Continue reading

Health policy researchers lack confidence in social media for communicating scientific evidence

Health policy researchers lack confidence in social media for communicating scientific evidence

Though Twitter boats 645 million users across the world, only 14 percent of health policy researchers reported using Twitter — and approximately 20 percent used blogs and Facebook — to communicate their research findings over the past year, according to a new study from the Perelman School of Medicine at the University of Pennsylvania. In contrast, sixty-five percent used traditional media channels, such as press releases or media interviews Continue reading

Science of school lunch: Pictures tell story about lunch policies, healthy consumption

Science of school lunch: Pictures tell story about lunch policies, healthy consumption

In terms of ambience, Charlotte Central’s cafeteria is — well, conjure up your own elementary school lunch experience. There’s more than one reason to run to recess. Continue reading

Science of school lunch: Pictures tell story about lunch policies, healthy consumption

Science of school lunch: Pictures tell story about lunch policies, healthy consumption

In terms of ambience, Charlotte Central’s cafeteria is — well, conjure up your own elementary school lunch experience. There’s more than one reason to run to recess. Continue reading

Science of school lunch: Pictures tell story about lunch policies, healthy consumption

Science of school lunch: Pictures tell story about lunch policies, healthy consumption

In terms of ambience, Charlotte Central’s cafeteria is — well, conjure up your own elementary school lunch experience. There’s more than one reason to run to recess. Continue reading

Chemists discover structure of cancer drug candidate

Chemists discover structure of cancer drug candidate

Chemists at The Scripps Research Institute (TSRI) have determined the correct structure of a highly promising anticancer compound approved by the U.S. Continue reading

Methadone programs can be key in educating, treating Hepatitis C patients

Methadone programs can be key in educating, treating Hepatitis C patients

People who inject drugs and are enrolled in a drug treatment program are receptive to education about, and treatment for, hepatitis C virus, according to a study by researchers at several institutions, including the University at Buffalo. That finding, published online this week in the Journal of Addiction Medicine will be welcome news to health care providers. The paper notes that injection drug use is a primary mode of infection, making for an HCV infection prevalence as high as 80 percent among people who inject drugs. Continue reading