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Does Parkinson's disease start in the brain or gut?

10:00 EST 7 Nov 2019 | News-Medical.net

Does Parkinson's disease start in the brain or the gut? In a new contribution published in the Journal of Parkinson's Disease, scientists hypothesize that PD can be divided into two subtypes: gut-first, originating in the peripheral nervous system of the gut and spreading to the brain; and brain-first, originating in the brain, or entering the brain via the olfactory system, and spreading to the brainstem and peripheral nervous system.

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