How Glutathione (GSH) May Help Reduce Parkinson's Symptoms Cardiology & Neurology Specialists located in Queens, Forest Hills and Brighton Beach, Brooklyn, NY Advanced Medical Care Serum glutathione peroxidase, xanthine oxidase, and superoxide dismutase activities and malondialdehyde levels in patients with Parkinson's disease Neurological Sciences Springer Nature Link Parkinson's Disease New England Journal of Medicine Randomized, double'blind, pilot evaluation of intravenous glutathione in Parkinson's disease