Urine-Derived Neuronal Extracellular Vesicle α-Synuclein Seed Amplification Assay for Synucleinopathies: A Non-Invasive Biomarker Study.
BACKGROUND α-Synuclein aggregation is a pathological hallmark of synucleinopathies, including Parkinson's disease (PD) and multiple system atrophy (MSA). Although pathogenic α-synuclein seeds can be detected by real-time quaking-induced conversion (RT-QuIC), current assays primarily rely on cerebrospinal fluid, whose i...