RegenerationMyocytes, CardiacHeartRegenerative MedicineStem Cell TransplantationMyocardiumStem CellsNerve RegenerationHeart DiseasesLiver RegenerationMyocardial InfarctionPericardiumCell DifferentiationTissue EngineeringCell ProliferationRecovery of FunctionEmbryonic Stem CellsHeart FailureBone RegenerationDisease Models, AnimalBone Marrow CellsCardiac OutputCells, CulturedArrhythmias, CardiacCardiac Surgical ProceduresGuided Tissue RegenerationDeath, Sudden, CardiacPlanariansHepatectomyTime FactorsCardiomegalyCardiac TamponadeCardiac Pacing, ArtificialAxonsSalamandridaeAmbystoma mexicanumCardiac CatheterizationMyocardial ContractionExtremitiesNerve CrushHeart VentriclesHeart ArrestMyoblasts, CardiacMice, Inbred C57BLNotophthalmus viridescensRats, Sprague-DawleyAnimal FinsWound HealingCardiomyopathiesTissue ScaffoldsCardiac Imaging TechniquesSignal TransductionElectrocardiographyMuscle, SkeletalCardiac MyosinsZebrafishSatellite Cells, Skeletal MuscleTailCardiac GlycosidesEchocardiographyHeart RateSpinal Cord RegenerationMice, TransgenicSciatic NerveVentricular RemodelingCardiac Output, LowRats, WistarHemodynamicsOut-of-Hospital Cardiac ArrestMice, KnockoutHeart TransplantationCardiac VolumeVentricular Function, LeftAxotomyModels, AnimalGene Expression RegulationTroponin IImmunohistochemistryCardiotoxinsRNA, MessengerLiverPeripheral NervesFibrosisDogsHeart InjuriesSchwann CellsHeart Defects, CongenitalTreatment OutcomeHepatocytesHeart Function TestsStroke VolumeTurbellariaBiocompatible MaterialsBlood PressureUrodelaCardiac Resynchronization TherapyTroponin TGene Expression Regulation, DevelopmentalMyocardial IschemiaHeart Conduction System