non-motor symptoms

Published research on non-motor symptoms.

DepressionJul 16, 2026

Lower Uric Acid Predicted Depression in Prodromal Parkinson’s Disease

A 5-year PPMI cohort analysis found that lower serum uric acid independently predicted incident depression in prodromal Parkinson’s disease (HR = 0.776; 95% CI 0.619-0.974; P = 0.029).1 The …

Read article →

BrainJul 8, 2026

Early Parkinson’s Non-Motor Symptoms Differed by Sex After Levodopa

A 2026 multicenter Italian cohort followed 216 early Parkinson’s disease patients for 24 months after levodopa initiation and found sex/gender differences in non-motor symptom burden.1 Women…

Read article →