A neuroimmune-enriched multibiofluid proteomic index associated with cognitive-motor progression in early Parkinson’s disease: a longitudinal PPMI cohort study
Progression in early Parkinson's disease (PD) is heterogeneous, motivating transparent biological markers of group-level progression context. We analyzed longitudinal Parkinson’s Progression Markers Initiative (PPMI) data downloaded on 31 May 2026. The neuroimmune-enriched multibiofluid proteomic index (NEMPI) used 718...