Models, CardiovascularMice, TransgenicMyocytes, CardiacCardiac OutputHeartArrhythmias, CardiacCardiac Surgical ProceduresPlants, Genetically ModifiedDeath, Sudden, CardiacRats, TransgenicAnimals, Genetically ModifiedTransgenesMice, Inbred C57BLMyocardiumDisease Models, AnimalCardiomegalyTime FactorsMyocardial ContractionCardiac Pacing, ArtificialHeart DiseasesCardiac TamponadeHeart VentriclesCardiac CatheterizationGene ExpressionHeart ArrestCardiomyopathiesHeart FailureHeart RateElectrocardiographyMolecular Sequence DataPhenotypeEchocardiographyHemodynamicsRNA, MessengerPromoter Regions, GeneticCells, CulturedCardiac MyosinsMyoblasts, CardiacGene Expression RegulationCardiac Imaging TechniquesBlood PressureMice, KnockoutVentricular Function, LeftVentricular RemodelingBase SequenceCardiac GlycosidesCardiac Output, LowModels, BiologicalMyocardial InfarctionTreatment OutcomeTroponin IMutationTobaccoHeart TransplantationOut-of-Hospital Cardiac ArrestSignal TransductionCardiac VolumeGreen Fluorescent ProteinsRats, Sprague-DawleyProspective StudiesImmunohistochemistryDogsStroke VolumeCalciumReproducibility of ResultsHeart Defects, CongenitalCardiomyopathy, DilatedFibrosisOrgan SpecificityHeart Function TestsVentricular Dysfunction, LeftTroponin TGene Expression Regulation, DevelopmentalBiological MarkersHeart Conduction SystemAnimals, NewbornAlgorithmsCardiotonic AgentsComputer SimulationCardiac Resynchronization TherapyMyocardial IschemiaKineticsOrgan SizePredictive Value of TestsBrainCell DifferentiationRetrospective StudiesCardiopulmonary ResuscitationHeart NeoplasmsModels, AnimalRats, WistarPlants, ToxicReverse Transcriptase Polymerase Chain ReactionAnalysis of VarianceDose-Response Relationship, DrugBlotting, WesternCardiac Care FacilitiesTranscription FactorsVentricular FunctionGenes, Reporter