Meeri Kim in The Washington Post:
A new study adds to a growing body of evidence that Parkinson’s disease, long believed to have its origins in the brain, may begin in the gut.
Gastrointestinal problems are common in patients with neurodegenerative disorders, to the point where a condition known as “institutional colon” was once thought to afflict those who lived in mental health institutions. In Parkinson’s disease, the entire gastrointestinal tract is affected, causing complications such as constipation, drooling, trouble swallowing and delayed emptying of the stomach. These symptoms often appear up to two decades before motor symptoms such as rigidity or tremor.
More here.
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