In this specific cycle: 1 Hydrogen peroxide, a free radical and reactive oxygen species, is converted into water (harmless), and oxygen 2 Two molecules of reduced Glutathione [GSH (the active antioxidant form of glutathione)] are used by the Glutathione peroxidase enzyme to neutralize one molecule of hydrogen peroxide 3 NADPH is used by glutathione reductase enzyme to reduce ("recycle") glutathione disulfide back into usable reduced glutathione Key players: Selenium: Essential for the enzyme that initiates the breakdown of hydrogen peroxide Riboflavin (FAD - coenzyme form of riboflavin): essential for the enzyme that restores the oxidized Glutathione back to its more useful state
[DOI] [PMC free article] [PubMed] [Google Scholar] 177.Mead BP, Curley CT, Kim N, Negron K, Garrison WJ, Song J, Rao D, Miller GW, Mandell JW, Purow BW, Suk JS, Hanes J, Price RJ
Diabetes can lead to light sensitivity or blindness
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