NADPH in Biology Definition, Structure & Function Lesson Study.com Glutathione, Reduced Glutathione, GSH, Endogenous Antioxidant Molecule. Skeletal Formula. Stock Vector Illustration of peroxide, melanin: 244372488 The role of reduced glutathione (GSH) in the process of spermatic capacitation IVIS Elevated glutathione levels may reflect an accumulation resulting from impaired recycling, often due to deficiencies in NADPH, selenium, or riboflavin (vitamin B2). This indicates a disruption in the redox balance rather than Uses of NADPH Reductive Biosynthesis Uses of NADPH Reduction of Hydrogen Peroxide Frontiers Glutathione: Pharmacological aspects and implications for clinical use in non alcoholic fatty liver disease