Hydrogen SulfideNitric OxideSulfidesNitric Oxide SynthaseCystathionine gamma-LyaseNitric Oxide Synthase Type IIIAlkynesCystathionine beta-SynthaseNitric Oxide Synthase Type IINitric Oxide DonorsNitric Oxide Synthase Type IPaperExtraembryonic MembranesKATP ChannelsHydrogenNG-Nitroarginine Methyl EsterChorionEndothelium, VascularHydrogen PeroxideAmnionNitritesArginineRats, Sprague-DawleyHydrogen BondingEnzyme Inhibitorsomega-N-MethylarginineGlycineVasodilationNitratesCyclic GMPMyometriumAmino Acid OxidoreductasesNitroprussideCells, CulturedS-Nitroso-N-AcetylpenicillamineNitrogen OxidesVasodilator AgentsPenicillamineOxidesEndothelial CellsNitroarginineSuperoxidesDose-Response Relationship, DrugAortaGuanylate CyclaseRats, WistarMice, Inbred C57BLBiopterinThiosulfatesVitamin UExhalationAcetylcholineSignal TransductionMice, KnockoutRNA, MessengerMolsidominePeroxynitrous AcidOxidation-ReductionNADPH DehydrogenaseS-NitrosoglutathioneBlood Pressure