Researchers explain why exercise may help reduce risk for Alzheimer's.The Milwaukee Journal Sentinel (12/2, Fauber) "Health& Science Today" blog reported that in a study published online Dec. 2 in the journal Circulation Research, scientists from the Mayo Clinic have explained "why exercise may help reduce the risk of Alzheimer's disease." By "using endothelial cells from tiny blood vessels from the human brain, the researchers chemically inhibited the production of an enzyme needed to produce nitric oxide."
HealthDay (12/2, Preidt) reported that "endothelial dysfunction increases production of proteins that provide the raw material for the amyloid plaques seen in the brains of people with Alzheimer's disease." The study's senior author explained that exercise stimulates "the endothelium to produce more nitric oxide. What we have identified in this paper may help explain the reported (cognitive) benefit of exercise."
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