Oxidation-ReductionQuality Indicators, Health CareGlutathioneThioredoxinsGlutathione DisulfideIndicators and ReagentsHealth Status IndicatorsOxidative StressSulfhydryl CompoundsReactive Oxygen SpeciesElectron TransportCysteineHydrogen PeroxideElectrochemistryDisulfidesThioredoxin-Disulfide ReductaseOxidoreductasesGlutaredoxinsOxidantsAntioxidantsKineticsElectron Spin Resonance SpectroscopyReducing AgentsOxygenTime FactorsNAD