Neuronally Derived Extracellular Vesicle alpha-Synuclein as a Serum Biomarker for Individuals at Risk of Developing Parkinson Disease Home » Neuronally Derived Extracellular Vesicle alpha-Synuclein as a Serum Biomarker for Individuals at Risk of Developing Parkinson Disease September 12, 2024September 12, 2024 by Jason Davis S. Yan, C. Jiang, A. Janzen, J.J. Davis, G.K Tofaris JAMA Neurology. 2024, 81, 1, 59-68