Receptors, EndothelinReceptor, Endothelin BReceptor, Endothelin AEndothelinsEndothelin-1Endothelin-3Peptides, CyclicViper VenomsEndothelin-2SulfonamidesPhenylpropionatesPyrrolidinesIndansAzepinesHypertension, PulmonaryAntihypertensive AgentsOligopeptidesPiperidinesVasoconstrictionVasoconstrictor AgentsIsoxazolesPyridazinesRats, Sprague-DawleyEisenmenger ComplexRNA, MessengerBinding, CompetitiveRats, WistarBlood PressureAspartic Acid EndopeptidasesHemodynamicsDioxolesRadioligand AssayDose-Response Relationship, DrugPyrimidinesPulmonary ArteryTetrazolesThiophenesMuscle, Smooth, VascularMelanocytesVasodilator AgentsIodine RadioisotopesEndothelium, VascularSignal TransductionRenal CirculationDansyl CompoundsMuscle ContractionHirschsprung DiseaseMetalloendopeptidasesCells, CulturedMolecular Sequence DataIndolesPyridinesRats, Inbred WKYKidneyScleroderma, SystemicNitric OxideReceptors, Transforming Growth Factor betaVasodilationAortaReceptors, Interleukin-1 Type IVascular ResistancePhosphodiesterase 5 InhibitorsGene ExpressionDioxanesCalciumReceptors, Cell SurfaceDisease Models, AnimalCoronary VesselsMyocardiumHypertensionEpoprostenolRats, Inbred SHRReceptors, Complement 3bStachybotrys