MentalHealthDaily

Lower Uric Acid Predicted Depression in Prodromal Parkinson’s Disease

by GLOOM

MHD featured image for uric acid and depression risk 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 signal sits beside a lower-p-value non-motor symptom predictor: higher MDS-UPDRS Part I scores also predicted depression (HR = 1.177; 95% CI 1.093-1.267; P < 0.001). Research ...

Alpha-Synuclein SAA Predicts Parkinson’s Levodopa Response Durability

by GLOOM

Photoreal illustration of CSF biomarker testing alongside dopaminergic neuron pathways, representing PD biomarker stratification.

A 2026 PPMI analysis found that Parkinson’s patients with positive CSF α-synuclein seed amplification assay results kept gaining levodopa benefit over follow-up, while SAA-negative patients showed faster ON-medication motor progression than SAA-positive patients: 0.87 vs. 3.47 MDS-UPDRS Part III points/year in 183 matched SAA-positive and 40 SAA-negative patients.1 Research Highlights ON-state progression split sharply: SAA-positive …