Glutathione S transferase: A keystone in Parkinson's disease pathogenesis and therapy ScienceDirect 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 Evolving Landscape of Parkinson's Disease Research: Challenges and Perspectives ACS Omega Parkinson's disease managing reversible neurodegeneration NDT Dove Medical Press Targeting the Cysteine Redox Proteome in Parkinson's Disease: The Role of Glutathione Precursors and Beyond