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Parkinson’s disease may start in the gut and travel to the brain – but it can also spread from the brain to the gut, according to findings in baboons.
Misfolded proteins thought to trigger brain damage seem to travel in the blood, and cause equal amounts of brain cell death whether they originate in the brain or the gut.
People with Parkinson’s disease often experience gastrointestinal symptoms, such as constipation. Research conducted over the past 17 years or so suggests that the …