Stem CellsMyocytes, CardiacEmbryonic Stem CellsStem Cell TransplantationHematopoietic Stem CellsMyocardiumAdult Stem CellsPluripotent Stem CellsCells, CulturedCell DifferentiationInduced Pluripotent Stem CellsHematopoietic Stem Cell TransplantationStem Cell NicheHeartNeural Stem CellsAnimals, NewbornMesenchymal Stem Cell TransplantationMultipotent Stem CellsCardiomegalyMesenchymal Stromal CellsMyocardial ContractionStem Cell FactorCell LineageRats, Sprague-DawleySignal TransductionRegenerationHeart VentriclesCell ProliferationRats, WistarMice, Inbred C57BLFetal Stem CellsStem Cell ResearchMice, TransgenicCell Culture TechniquesCalciumPlant StemsApoptosisCell SeparationMitochondria, HeartCell SurvivalCell SizeGATA4 Transcription FactorBone Marrow CellsMyocardial Reperfusion InjuryCardiotonic AgentsCell LineSarcomeresTime FactorsReverse Transcriptase Polymerase Chain ReactionHematopoietic Stem Cell MobilizationEmbryo, MammalianGene Expression RegulationNeoplastic Stem CellsCalcium Channels, L-TypeMuscle CellsIsoproterenolConnexin 43Gene ExpressionGene Expression Regulation, DevelopmentalOctamer Transcription Factor-3Flow CytometryImmunohistochemistryRNA, MessengerMice, KnockoutHypertrophyRegenerative MedicineMyoblasts, CardiacDisease Models, AnimalCoculture TechniquesCalcium SignalingTissue EngineeringGreen Fluorescent ProteinsMicroscopy, ConfocalCell TransplantationBlotting, WesternCardiac MyosinsMyocardial IschemiaCell HypoxiaSarcoplasmic Reticulum Calcium-Transporting ATPasesCardiomyopathiesVentricular RemodelingCell- and Tissue-Based TherapySarcolemmaSodium-Calcium ExchangerTranscription FactorsGene Expression ProfilingPhenotypeMyocardial InfarctionReactive Oxygen SpeciesMuscle ProteinsModels, BiologicalVentricular MyosinsAntigens, CD34Transplantation, AutologousHematopoiesisModels, AnimalAdrenergic beta-AgonistsPeripheral Blood Stem Cell TransplantationTransplantation, HomologousPhosphorylation