Receptor, Endothelin AReceptors, EndothelinReceptor, Endothelin BEthidiumEndothelinsEndothelin-1Intercalating AgentsEndothelin-3Endothelin-2Peptides, CyclicViper VenomsPhenylpropionatesSulfonamidesVasoconstrictionPyrrolidinesAspartic Acid EndopeptidasesAzepinesDNAIndansOligopeptidesMolecular Sequence DataVasoconstrictor AgentsPiperidinesMetalloendopeptidasesBlood PressureRats, Sprague-DawleyAntihypertensive AgentsEndothelium, VascularMuscle, Smooth, VascularHypertension, PulmonaryProtein PrecursorsPeptidesHemodynamicsNitric OxideRats, WistarRNA, MessengerRenal CirculationVascular ResistanceKidneyDose-Response Relationship, DrugHypertensionDioxolesRats, Inbred WKYDansyl CompoundsCells, CulturedVasodilator AgentsPulmonary ArteryMuscle ContractionPyrimidinesAtrial Natriuretic FactorMesenteric ArteriesAngiotensin IIIndolesRats, Inbred SHRMyocardiumCoronary VesselsNicardipineGlycopeptidesAortaCalciumArteriolesNeprilysinIsoxazolesVasodilationTetrazolesNitric Oxide SynthaseBinding, CompetitiveMelanocytesRegional Blood FlowPyridazinesDesoxycorticosteroneRadioimmunoassaySignal TransductionSwineEnzyme InhibitorsHirschsprung DiseaseTime FactorsDisease Models, AnimalKidney MedullaRats, Inbred StrainsVasomotor SystemAorta, ThoracicPulmonary Circulationomega-N-MethylarginineRadioligand AssayNG-Nitroarginine Methyl EsterArteriesRabbitsIodine RadioisotopesForearmLentigoPerfusionPhenylephrineCarboprostMuscle, SmoothDiuresisPeptide FragmentsVasopressinsProtein Kinase CGene Expression