Nitric OxideNitric Oxide SynthaseNitric Oxide Synthase Type IIINitric Oxide Synthase Type IINitric Oxide DonorsNitric Oxide Synthase Type ING-Nitroarginine Methyl EsterNitritesArginineomega-N-MethylarginineEnzyme InhibitorsEndothelium, VascularNitratesCyclic GMPNitrogen OxidesAmino Acid OxidoreductasesS-Nitroso-N-AcetylpenicillamineVasodilationNitroprussidePenicillamineOxidesRats, Sprague-DawleyCells, CulturedNitroarginineVasodilator AgentsGuanylate CyclaseMolsidomineS-NitrosoglutathioneRats, WistarDose-Response Relationship, DrugS-NitrosothiolsSuperoxidesPeroxynitrous AcidEndothelial CellsLipopolysaccharidesNADPH DehydrogenaseAortaZinc OxideEnzyme InductionAcetylcholineMice, Inbred C57BLIndazolesRNA, MessengerBlood PressureOxadiazolesSignal TransductionMice, KnockoutGuanidinesFree Radical ScavengersVasoconstrictionOxidative StressGene Expression Regulation, EnzymologicExhalationMacrophagesBreath TestsBiopterinBlotting, WesternTime FactorsDisease Models, AnimalCattleCaveolin 1Enzyme ActivationAdministration, InhalationRegional Blood FlowMuscle, Smooth, VascularReactive Oxygen SpeciesArginaseTriazenesMuscle RelaxationBradykininGTP CyclohydrolaseNitrosationOxygenAorta, ThoracicImmunohistochemistryHydrazinesArteriolesSuperoxide DismutaseOxidation-ReductionTumor Necrosis Factor-alphaCyclic GMP-Dependent Protein KinasesPulmonary ArteryPhosphorylationHemodynamicsInterferon-gammaVascular ResistanceQuinoxalinesReactive Nitrogen SpeciesAmidinesEndothelium-Dependent Relaxing FactorsIndomethacinMicrocirculationCell LineLungSwineDiethylaminesCyclooxygenase InhibitorsIsothiuroniumCaveolinsIsoenzymes