Potentiation of glutathione loss and nerve cell death by the transition metals iron and copper: Implications for age related neurodegenerative diseases ScienceDirect Changes in levels of the antioxidant glutathione in brain and blood across the age span of healthy adults: A systematic review ScienceDirect Glutathione Supplement Glutathione Antioxidant BrainMD BrainMD A major breakthrough in brain science is shedding new light on the biology behind depression. Using advanced imaging, researchers have found that people with major depressive disorder have significantly lower levels of Glutathione in the Brain