A research team has developed the first small molecule that can reversibly activate a key protein involved in balancing sodium levels, paving the way for drugs that can treat low blood pressure and related conditions.

A mere mistake in records may lead to unexpected things. For example, the Food and Drug Administration's Center for Drug Evaluation and Research mistakenly cleared the heparin facility belonging to another company with a similar name.

Eating about 30 calories a day of dark chocolate was associated with a lowering of blood pressure, without weight gain or other adverse effects, according to a study in the July 4 issue of JAMA.

Foods rich in cocoa appear to reduce blood pressure but drinking tea may not, according to an analysis of previously published research in the April 9 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.