Pulmonary ArteryMyocytes, Smooth MuscleMuscle, Smooth, VascularHypertension, PulmonaryCells, CulturedMuscle, SmoothBone Morphogenetic Protein Receptors, Type IIAnoxiaMonocrotalineDexfenfluramineCalciumCell ProliferationCell HypoxiaKv1.5 Potassium ChannelRats, Sprague-DawleyVasoconstrictionArteriesMuscle ContractionCoronary VesselsIloprostPotassium ChannelsSignal TransductionEndothelin-1RNA, MessengerHypertrophy, Right VentricularMembrane PotentialsSerotoninTRPC Cation ChannelsSmad5 ProteinPotassium Channels, Voltage-GatedCell DivisionCyclic GMP-Dependent Protein Kinase Type IPlatelet-Derived Growth Factor4-AminopyridineVoltage-Gated Sodium Channel beta-2 SubunitBone Morphogenetic Protein 4AortaProto-Oncogene Proteins c-sisEnzyme InhibitorsCyclic Nucleotide Phosphodiesterases, Type 1Dose-Response Relationship, DrugRats, WistarCattlePatch-Clamp Techniquesrho-Associated KinasesCalcium SignalingCyclic GMPPotassium Channel BlockersMusclesCalcium ChannelsCerebral ArteriesSmad1 ProteinBlotting, WesternBone Morphogenetic ProteinsPulmonary CirculationSerotonin Plasma Membrane Transport ProteinsReceptor, Endothelin AMesenteric ArteriesReverse Transcriptase Polymerase Chain ReactionLungGene Expression RegulationSmad ProteinsRabbitsVasodilator AgentsGene ExpressionPotassiumCell MovementNitric OxideDisease Models, AnimalEndothelium, VascularTransforming Growth Factor beta1PhosphorylationApoptosisCaffeineChloride ChannelsDogsUp-RegulationMuscle ProteinsCyclic GMP-Dependent Protein KinasesPhosphodiesterase InhibitorsSulfonesRNA, Small InterferingCyclic AMPReactive Oxygen SpeciesBasilar ArteryMuscle TonusCarotid ArteriesTransforming Growth Factor betaElectrophysiologyEpoprostenolUmbilical ArteriesRyanodineMice, Inbred C57BLFetusSheepAorta, ThoracicIsoenzymesIon Channel GatingPhenylephrineMuscle Relaxation