Xanthine OxidaseXanthineOxidative StressXanthine DehydrogenaseXanthinesAllopurinolOxypurinolNADPH OxidaseAldehyde OxidaseMolybdenumHypoxanthineSuperoxidesReactive Oxygen SpeciesHydrogen PeroxideSuperoxide DismutaseFree RadicalsHypoxanthinesAntioxidantsOxidation-ReductionMilkUric AcidCatalasePteridinesGlucose OxidaseLipid PeroxidationOxidantsTungstenFree Radical ScavengersMonoamine OxidaseHydroxidesElectron Spin Resonance SpectroscopyUrate OxidaseHydroxyl RadicalGlutathioneMalondialdehydeOxygenProtein-Lysine 6-OxidaseOxidoreductasesCyclic N-OxidesCattleEnzyme InhibitorsThiobarbituric Acid Reactive SubstancesKineticsPurinesFlavin-Adenine DinucleotideAcetophenonesNitric OxideNADH, NADPH OxidoreductasesDithioniteGlutathione PeroxidaseTungsten CompoundsLiverAldehydesRats, Sprague-DawleyMitochondriaKetone OxidoreductasesD-Amino-Acid OxidaseOnium CompoundsCells, CulturedRats, WistarMonoamine Oxidase InhibitorsGlutathione DisulfideAcetylcysteineSpectrophotometryEndothelium, VascularIronUricosuric AgentsProtein CarbonylationAscorbic AcidNADDose-Response Relationship, DrugAscorbate OxidaseSpin LabelsCoenzymesBenzaldehydesFlavinsMetalloproteinsAldehyde OxidoreductasesGalactose OxidasePeroxidaseHyperuricemiaGout SuppressantsAcyl-CoA OxidaseRhodiolaReperfusion InjuryPterinsLipid PeroxidesLuminescent MeasurementsTime FactorsCopperNitratesDesulfovibrio gigasMyocardiumEnzyme ActivationApoptosisCell SurvivalF2-IsoprostanesSulfhydryl CompoundsParaquatHydrogen-Ion Concentration