Oxidative StressNitric OxideNitric Oxide SynthaseNitric Oxide Synthase Type IINitric Oxide Synthase Type IIINitric Oxide DonorsNitric Oxide Synthase Type IAntioxidantsReactive Oxygen SpeciesNG-Nitroarginine Methyl EsterNitritesHydrogen PeroxideArginineEnzyme InhibitorsSuperoxide Dismutaseomega-N-MethylarginineLipid PeroxidationNitratesGlutathioneEndothelium, VascularOxidantsRats, Sprague-DawleyNitrogen OxidesMalondialdehydeOxidation-ReductionAmino Acid OxidoreductasesNitroprussideRats, WistarS-Nitroso-N-AcetylpenicillamineVasodilationCells, CulturedCyclic GMPObesityOxidesCatalaseSuperoxidesPenicillamineDisease Models, AnimalDose-Response Relationship, DrugFree Radical ScavengersThiobarbituric Acid Reactive SubstancesVasodilator AgentsMolsidomineRNA, MessengerProtein CarbonylationSignal TransductionGuanylate CyclaseGlutathione PeroxidaseMice, Inbred C57BLS-NitrosoglutathioneNitroargininePeroxynitrous AcidApoptosisNADPH OxidaseCyclic N-OxidesTime FactorsBlood PressureBlotting, WesternMitochondriaBody WeightS-NitrosothiolsAcetylcysteineF2-IsoprostanesParaquatLiverNADPH DehydrogenaseAscorbic AcidLipopolysaccharidesInsulinZinc OxideMice, KnockoutOxygenEnzyme InductionDeoxyguanosineAldehydesKidneyCell LineReactive Nitrogen SpeciesBiological MarkersCell SurvivalAortaInflammationGlutathione DisulfideAcetylcholineGene Expression Regulation, EnzymologicDiabetes Mellitus, ExperimentalBlood GlucoseThinnessMacrophagestert-ButylhydroperoxideHeme Oxygenase-1Enzyme ActivationIsoprostanesHydrazinesBreath TestsFree RadicalsGlucoseImmunohistochemistryVasoconstrictionInsulin Resistance