Genome :: Giardia genome unlocked

Giardia lamblia, one of the most common human parasites in the United States, causes more than 20,000 intestinal infections a year, often through contact with contaminated drinking or swimming water. In the Sept. 28 issue of Science, an international team led by researchers at the MBL describe the complete genome (genetic sequence) of Giardia, which could lead to the development of new drugs to combat this persistent infection, called giardiasis.

Depression :: Genes linked to suicidal thinking during antidepressant treatment

Specific variations in two genes are linked to suicidal thinking that sometimes occurs in people taking the most commonly prescribed class of antidepressants, according to a large study led by scientists at the National Institutes of Health’s (NIH) National Institute of Mental Health (NIMH). Depending on the particular mix inherited, these versions increased the likelihood of such thoughts from 2- to15-fold, the study found.

Weight Loss :: New drug makes weight loss safer

More than 60 percent of American women are overweight, with nearly a third falling into the category of obese and at greater risk of cancer, heart disease and diabetes. Until now, there has been no safe, long-term medical remedy that tackles unwanted weight gain.

GI Diet :: Glycemic index values are variable, report researchers

In work investigating the reproducibility of glycemic index values, researchers at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University (USDA HNRCA) have reported that multiple glycemic index value determinations (measure of the rate of glucose absorption into the bloodstream) using a simple test food, white bread, resulted in a relatively high level of inter-individual (among different individuals), and intra-individual (within the same individual) variability.

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