HypertrophyCardiomegalyMyocardiumMyocytes, CardiacHypertrophy, Left VentricularVentricular RemodelingCell SizeHeartHeart VentriclesFibrosisMuscle CellsCell EnlargementRats, Sprague-DawleyAtrial Natriuretic FactorPhenylephrineAnimals, NewbornCells, CulturedMyocardial ContractionMyosin Heavy ChainsOrgan SizeSarcomeresCalcineurinEchocardiographyCardiomyopathiesAngiotensin IICardiomyopathy, HypertrophicHeart FailureHypertrophy, Right VentricularA Kinase Anchor ProteinsDisease Models, AnimalSignal TransductionEndothelin-1Rats, WistarIsoproterenolMice, TransgenicVentricular Function, LeftHemodynamicsNFATC Transcription FactorsCardiomyopathy, DilatedHypertensionGene Expression RegulationVentricular Dysfunction, LeftMyocardial InfarctionMice, KnockoutRNA, MessengerMice, Inbred C57BLMEF2 Transcription FactorsMyogenic Regulatory FactorsCalciumTime FactorsPhosphorylationProtein-Serine-Threonine KinasesCollagenGene ExpressionApoptosisEnzyme InhibitorsBlotting, WesternFibroblastsCalcium-Calmodulin-Dependent Protein KinasesEnzyme ActivationBlood PressureVentricular PressureMuscle ProteinsEndomyocardial FibrosisSarcoplasmic Reticulum Calcium-Transporting ATPasesRats, Inbred SHRMonocrotalineRats, Inbred WKYVentricular MyosinsAdenoidsCardiotonic AgentsElectrocardiographyDiastoleVentricular FunctionGATA4 Transcription FactorMuscle, SkeletalConstrictionReceptors, Adrenergic, betaModels, CardiovascularBody WeightCalcium SignalingMuscle Fibers, SkeletalAntihypertensive AgentsSystoleSarcoplasmic ReticulumPhysical Conditioning, AnimalCardiomegaly, Exercise-InducedCardiac MyosinsAortic Valve StenosisHypertension, PulmonaryHeart SeptumAortaAngiotensin-Converting Enzyme InhibitorsMyostatinAdaptation, PhysiologicalHyperplasiaEndocardiumHeart RateDogsReceptor, Angiotensin, Type 1