Myocytes, CardiacHepatocytesLiverCells, CulturedMyocardiumRats, WistarHeartRats, Sprague-DawleyAnimals, NewbornMutationCardiomegalyMyocardial ContractionRNA, MessengerCalciumSignal TransductionMolecular Sequence DataPhenotypeMice, Inbred C57BLApoptosisMice, TransgenicMice, KnockoutHeart VentriclesRats, Inbred StrainsCell DifferentiationGene Expression RegulationLiver RegenerationBase SequenceTime FactorsCell LineMitochondria, HeartGene ExpressionCell SurvivalCell SizeEmbryonic Stem CellsDisease Models, AnimalMutation, MissenseReverse Transcriptase Polymerase Chain ReactionBlotting, WesternTranscription FactorsPedigreeMyocardial Reperfusion InjuryRats, Inbred F344Cardiotonic AgentsAmino Acid SequenceSarcomeresImmunohistochemistryPhosphorylationIsoproterenolKineticsGlucagonTransfectionDose-Response Relationship, DrugGATA4 Transcription FactorCalcium Channels, L-TypeEnzyme ActivationL-Lactate DehydrogenaseHypertrophyPhenylephrineCalcium SignalingAdenoviridaeAlbuminsReactive Oxygen SpeciesCell Culture TechniquesMuscle ProteinsLiver Neoplasms, ExperimentalConnexin 43AsialoglycoproteinsStem CellsMuscle CellsGlucoseMicroscopy, ConfocalCarrier ProteinsCell SeparationSarcoplasmic Reticulum Calcium-Transporting ATPasesHeterozygoteMembrane ProteinsCell TransplantationEnzyme InhibitorsSarcolemmaDNA PrimersCardiac MyosinsCell HypoxiaBiological TransportExonsGene TargetingSodium-Calcium ExchangerCardiomyopathiesHomozygoteInduced Pluripotent Stem CellsMyocardial IschemiaEnzyme InductionTranscription, GeneticMyoblasts, CardiacGene Expression Regulation, DevelopmentalOxidative StressInsulinGluconeogenesisGene DeletionCytoprotectionAdrenergic beta-Agonists