Superoxide DismutaseNitric OxideSuperoxidesNitric Oxide SynthaseCatalaseNitric Oxide Synthase Type IINitric Oxide Synthase Type IIINitric Oxide DonorsOxidative StressNitric Oxide Synthase Type IAntioxidantsGlutathione PeroxidaseFree Radical ScavengersHydrogen PeroxideReactive Oxygen SpeciesFree RadicalsParaquatNG-Nitroarginine Methyl EsterNitratesMalondialdehydeNitritesArginineCyclic N-OxidesXanthine OxidaseCopperOxidation-ReductionEnzyme InhibitorsLipid Peroxidationomega-N-MethylarginineEndothelium, VascularOxygenManganeseNitrogen OxidesRats, Sprague-DawleyGlutathioneDitiocarbRats, WistarNADPH OxidaseMetalloporphyrinsVasodilationMolsidomineNitroprussideAmyotrophic Lateral SclerosisS-Nitroso-N-AcetylpenicillamineCells, CulturedPenicillamineCyclic GMPPeroxynitrous AcidAmino Acid OxidoreductasesSpin LabelsDose-Response Relationship, DrugOxidantsThiobarbituric Acid Reactive SubstancesMitochondriaGlutathione ReductaseHydroxyl RadicalOxidesNitroblue TetrazoliumVasodilator AgentsEnzyme InductionGene Expression Regulation, EnzymologicElectron Spin Resonance SpectroscopyRNA, MessengerXanthineDisease Models, AnimalGuanylate CyclaseZincHydroxidesMice, Inbred C57BLNitroarginineAortaS-NitrosoglutathioneNeutrophilsTime FactorsCattleIronAcetylcholineAscorbic AcidKineticsPlant ExtractsIsoenzymesNADPH DehydrogenasePeroxidaseLuminescent MeasurementsBlotting, WesternLipid PeroxidesLipopolysaccharidesMacrophagesMolecular Sequence DataEnzyme ActivationMice, KnockoutS-NitrosothiolsErythrocytesPyrogallolLiverApoptosisSignal TransductionPeroxidasesOxidoreductasesAerobiosis