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In a study appearing in the July issue of Archives of Neurology, researchers found the pesticide beta-HCH (hexachlorocyclohexane) in 76 percent of people with Parkinson’s, compared with 40 percent of healthy controls and 30 percent of those with Alzheimer’s.

The finding might provide the basis for a beta-HCH blood test to identify individuals at risk for developing Parkinson’s disease. The results also point the way to more research on environmental causes of Parkinson’s.

“There’s been a link between pesticide use and Parkinson’s disease for a long time, but never a specific pesticide,” said Dr. Dwight German, professor of psychiatry at UT Southwestern and a senior author of the paper. “This is particularly important because the disease is not diagnosed until after significant nerve damage has occurred. A test for this risk factor might allow for early detection and protective treatment.”

www.sciencedaily.com/...090713170711.htm - Preview

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