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  • Title: Hydroxyl radical generation in the NADH/microsomal reduction of vanadate.
    Author: Shi X, Dalal NS.
    Journal: Free Radic Res Commun; 1992; 17(6):369-76. PubMed ID: 1337535.
    Abstract:
    ESR spin trapping measurements demonstrate generation of hydroxyl (.OH) radical from reduction of vanadate by rat liver microsomes/NADH without exogenous H2O2. Catalase decreases the .OH signal while increasing a vanadium (4+) signal. Addition of superoxide dismutase (SOD) or measurements under an argon atmosphere show decreased .OH radical production. The results suggest that during the one-electron vanadate reduction process by microsomes/NADH, molecular oxygen is reduced to H2O2, which then reacts with vanadium (4+) to generate .OH radical via a Fenton-like mechanism.
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