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 Full article: An in silico approach to identify bioactive phytochemicals from Houttuynia cordata Thunb. As potential inhibitors of human glutathione reductase Reactive oxygen species, toxicity, oxidative stress, and antioxidants: chronic diseases and aging springermedizin.de NADPH in Biology Definition, Structure & Function Lesson Study.com