Dr. Joseph C. Maroon is a neurosurgeon and a professor at the University of Pittsburgh Medical Center. His research on Alzheimers and Parkinsons disease focuses on the role of oxidative stress and Glutathione Foods to Raise Glutathione Levels LivOn Labs Foods With L Glutathione: Avocado, Watermelon, and More GoodRx Homocysteine: friend or foe? Cure Parkinson's Frontiers Berberine: A Promising Treatment for Neurodegenerative Diseases Glutathione, the Underrated Antioxidant You Need in Your Diet