Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Frontiers Glutathione and neurodegenerative diseases: immunopharmacological implications New Treatment for Parkinson's Disease Uses Nutrition to Slow Progression Bastyr Glutathione, a Valuable Ally Against Oxidative Stress SoLongevity Parkinson's Disease Cause, Symptoms & Key Facts Parkinson's Disease is a neurodegenerative disorder caused by a deficiency of dopamine due to damage in the substantia nigra of the brain.