Cell DifferentiationMyocytes, CardiacCells, CulturedMyocardiumSignal TransductionCardiomegalyStem CellsGene Expression Regulation, DevelopmentalEmbryonic Stem CellsTranscription FactorsGene Expression RegulationCell ProliferationCell LineHeartRNA, MessengerApoptosisMice, TransgenicCell LineageAnimals, NewbornSex DifferentiationMice, Inbred C57BLMice, KnockoutCell DivisionReverse Transcriptase Polymerase Chain ReactionRats, Sprague-DawleyMyocardial ContractionTretinoinGATA4 Transcription FactorGene ExpressionDNA-Binding ProteinsImmunohistochemistryHypertrophyMolecular Sequence DataHomeodomain ProteinsPhenotypeVentricular RemodelingBase SequenceBlotting, WesternCell SizeCell Culture TechniquesTime FactorsAntigens, DifferentiationCell EnlargementMesenchymal Stromal CellsCell SurvivalOsteogenesisOsteoblastsEmbryo, MammalianTransfectionTranscription, GeneticUp-RegulationPhosphorylationAdipogenesisHeart VentriclesTrans-ActivatorsMyoblastsGene Expression ProfilingRegenerationIn Situ HybridizationPromoter Regions, GeneticMuscle DevelopmentModels, BiologicalCell CycleDown-RegulationBone Morphogenetic ProteinsBone Marrow CellsFlow CytometryBasic Helix-Loop-Helix Transcription FactorsCalciumMuscle CellsNeuronsCardiomyopathiesHematopoietic Stem CellsAdipocytesMutationDisease Models, AnimalRepressor ProteinsKeratinocytesProto-Oncogene ProteinsVentricular MyosinsBiological MarkersNuclear ProteinsTumor Cells, CulturedMitochondria, HeartMesodermRats, WistarIn Situ Nick-End LabelingMorphogenesisFibrosisMyosin Heavy ChainsDimethyl SulfoxideSarcoplasmic Reticulum Calcium-Transporting ATPasesMyocardial Reperfusion InjuryMembrane ProteinsZebrafishPluripotent Stem CellsDNA PrimersBone Morphogenetic Protein 2Coculture TechniquesTransforming Growth Factor beta