Suspect bacterium may trigger Parkinson’s

Mouse study finds stomach ulcer-causing microbes may also affect brain

By Tina Hesman Saey, 19:33 PM May 22, 2011

NEW ORLEANS — Brain cells may be the latest victim of a bacterial bad guy already charged with causing ulcers and stomach cancer.

Helicobacter pylori, a bacterium that lives in the stomachs of about half the people in the world, may help trigger Parkinson’s disease, researchers reported May 22 at a meeting of the American Society for Microbiology. Parkinson’s disease is a neurological disorder that kills dopamine-producing cells in some parts of the brain. People with the diseas...

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