Myocytes, CardiacMyocardiumCells, CulturedHeartAnimals, NewbornCardiomegalyMyocardial ContractionRats, Sprague-DawleyHeart VentriclesRats, WistarCalciumMitochondria, HeartEmbryonic Stem CellsSignal TransductionMyocardial Reperfusion InjuryCardiotonic AgentsSarcomeresCell DifferentiationCell SizeGATA4 Transcription FactorApoptosisCalcium Channels, L-TypeIsoproterenolMice, TransgenicHypertrophyConnexin 43Muscle CellsChromatin ImmunoprecipitationCalcium SignalingMicrofluidic Analytical TechniquesSarcoplasmic Reticulum Calcium-Transporting ATPasesSarcolemmaCardiac MyosinsSodium-Calcium ExchangerCardiomyopathiesGene Expression RegulationMyocardial IschemiaMyoblasts, CardiacMuscle ProteinsOligonucleotide Array Sequence AnalysisTime FactorsVentricular MyosinsVentricular RemodelingAdrenergic beta-AgonistsMice, Inbred C57BLSarcoplasmic ReticulumRNA, MessengerCell HypoxiaHeart FailureMicroscopy, ConfocalReactive Oxygen SpeciesInduced Pluripotent Stem CellsReverse Transcriptase Polymerase Chain ReactionCell LineCardiomyopathy, DilatedBlotting, WesternCell SurvivalAtrial Natriuretic FactorPhosphorylationExcitation Contraction CouplingMicrochip Analytical ProceduresGene ExpressionMyocardial InfarctionEnzyme ActivationMice, KnockoutRegenerationDisease Models, AnimalPatch-Clamp TechniquesPhenylephrineAdenoviridaeCytoprotectionStem CellsMembrane Potential, MitochondrialHeart AtriaL-Lactate DehydrogenaseAction PotentialsEnzyme InhibitorsMyofibrilsAngiotensin IIOxidative StressCell Culture TechniquesTranscription FactorsEndothelin-1Caspase 3Dose-Response Relationship, DrugImmunohistochemistryUp-RegulationRyanodine Receptor Calcium Release ChannelArrhythmias, CardiacDiacetylLab-On-A-Chip DevicesModels, AnimalUbiquitin-Protein LigasesPromoter Regions, GeneticTransfectionReceptors, Adrenergic, beta-1Hydrogen PeroxideMyosin Heavy ChainsCell SeparationCell Enlargement