HeartMyocardiumHeart RateHeart FailureHeart DiseasesMyocytes, CardiacHeart TransplantationMyocarditisChagas CardiomyopathyHeart Defects, CongenitalMyocardial ContractionHeart AtriaFetal HeartCardiomyopathy, DilatedTissue EngineeringHeart InjuriesMyocardial IschemiaCardiomyopathiesHeart ValvesCardiotonic AgentsTrypanosoma cruziRats, WistarEnterovirus B, HumanCardiomegalyRats, Sprague-DawleyRheumatic Heart DiseaseMyocardial Reperfusion InjuryCoxsackievirus InfectionsHeart BlockDisease Models, AnimalMyocardial InfarctionEpicardial MappingTime FactorsRNA, MessengerOrgan SpecificityMitochondria, HeartCells, CulturedCalsequestrinAnimals, NewbornElectrophysiological ProcessesHeart Arrest, InducedHeart Function TestsChagas DiseasePerfusionTissue ExtractsStreptococcus mutansEchocardiographyMice, Inbred C57BLModels, CardiovascularIsoproterenolDogsMolecular Sequence DataConnexin 43Muscle ProteinsRabbitsImmunohistochemistryChronic DiseaseGene ExpressionCreatine KinaseCoronary DiseaseHemodynamicsTissue DistributionOxygen ConsumptionFibrosisHeart VentriclesLiverOxidative StressAmino Acid SequenceMice, KnockoutReverse Transcriptase Polymerase Chain ReactionCross ReactionsCardiac Output, LowCarrier ProteinsVentricular Function, LeftGene Expression RegulationSignal TransductionBase SequenceBiological MarkersHeart, ArtificialLipid PeroxidationHeart Failure, SystolicCalciumBlotting, WesternHeart Rate, FetalHeart SeptumDose-Response Relationship, DrugStroke VolumePolymerase Chain ReactionMuscle, SkeletalChick EmbryoHeart ArrestRisk FactorsCell DifferentiationKidneyGene Expression Regulation, DevelopmentalEnergy MetabolismRegenerationMalondialdehydeAntioxidantsHeart Valve Prosthesis