Study Links Gut Bacteria to Parkinson’s Disease

The exact cause of Parkinson’s disease isn’t known. Genetics and environment are possible factors, but now researchers say gut bacteria could contribute to the nervous system disorder. Researchers at the California Institute of Technology (Caltech) published a report today in the journal Cell detailing their discovery of a link between intestinal bacteria and Parkinson’s disease (PD). Changes in bacteria, or the bacteria themselves, contribute to — and may even cause — motor skill decline, the scientists concluded.

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