Nitric Oxide DonorsNitric OxideMolsidomineNitric Oxide SynthaseS-Nitroso-N-AcetylpenicillaminePenicillamineNitroprussideNitroso CompoundsS-NitrosoglutathioneNitric Oxide Synthase Type IINitrogen OxidesIsosorbide DinitrateNitric Oxide Synthase Type IIIVasodilator AgentsCyclic GMPNitroglycerinOxadiazolesNG-Nitroarginine Methyl EsterMicroscopy, ElectronNitric Oxide Synthase Type IEnzyme InhibitorsGuanylate CyclaseHydrazinesTissue DonorsElectronsArginineNitro CompoundsTriazenesNitratesomega-N-MethylarginineSydnonesElectron TransportNitritesMicroscopy, Electron, ScanningVasodilationSpermineDose-Response Relationship, DrugMuscle RelaxationQuinoxalinesS-NitrosothiolsRats, WistarCyclic GMP-Dependent Protein KinasesEndothelium, VascularRats, Sprague-DawleyBlood DonorsRuthenium CompoundsLiving DonorsCells, CulturedNitroargininePlacental Function TestsPentaerythritol TetranitrateNicorandilFree Radical ScavengersAzo CompoundsNitrosationHydroxocobalaminAcetylcholineIndazolesRabbitsPyrogallolAmino Acid OxidoreductasesCyclic Nucleotide Phosphodiesterases, Type 5Blood PressureGlutathionePropaneOxidation-ReductionMuscle, Smooth, VascularPurinonesOxidesMethylene BlueTime FactorsElectron Spin Resonance SpectroscopyMicroscopy, Electron, TransmissionVasoconstrictionAorta, ThoracicPhenylephrineAortaPlacental CirculationOxidative StressSuperoxidesMesenteric ArteriesVasoconstrictor AgentsAdministration, CutaneousArteriesDisease Models, AnimalVascular ResistanceGlyburideBradykininPhosphodiesterase InhibitorsMuscle, SmoothReactive Oxygen SpeciesRNA, MessengerCell SurvivalSuperoxide DismutaseHemodynamicsSwineCromakalimSignal TransductionKineticsMyocardium