Why do neuronal exosome-derived α-synuclein levels decline longitudinally in PD patients?

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Description

Ten of eleven patients showed gradual decrease in seeding activity over 5-9 years, suggesting either depletion of misfolded protein sources, changes in exosome release mechanisms, or altered protein clearance. Understanding this temporal pattern is critical for biomarker interpretation and disease monitoring.

Gap type: unexplained_observation Source paper: Association of Misfolded α-Synuclein Derived from Neuronal Exosomes in Blood with Parkinson’s Disease Diagnosis and Duration. (2024, Journal of Parkinson’s disease, PMID:38669557)

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