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PET scans may predict Parkinson’s disease and Lewy body dementia in at-risk individuals
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PET scans may predict Parkinson’s disease and Lewy body dementia in at-risk individuals

by Erin Bryant, National Institutes of Health Heart and brain PET scans from a study participant who developed Parkinson’s disease support a “body first” progression. The top pair of PET scans image show low 18F-dopamine-derived radioactivity in the heart (right, with 13N-ammonia PET scan on left). Later, brain scans showed a loss of dopamine-producing neurons and...