TroponinTroponin TTroponin CMyocytes, CardiacMyocardiumHeartHeart VentriclesMyocardial ContractionCalciumTropomyosinCardiac OutputArrhythmias, CardiacMyofibrilsRabbitsCardiomegalyCardiac Surgical ProceduresDeath, Sudden, CardiacMuscle CellsSarcomeresMyocardial InfarctionBiological MarkersCells, CulturedMuscle ProteinsVentricular FunctionHeart DiseasesCardiomyopathiesActin CytoskeletonMusclesTime FactorsCreatine KinaseElectrocardiographyIsoproterenolRats, Sprague-DawleyHeart FailureCalcium Channels, L-TypeHeart AtriaCardiac MyosinsCreatine Kinase, MB FormCardiac Pacing, ArtificialCardiotonic AgentsGuinea PigsPatch-Clamp TechniquesSodium-Calcium ExchangerMyosinsMyocardial IschemiaCalcium SignalingHeart InjuriesAnimals, NewbornAction PotentialsCardiac TamponadeSarcolemmaCardiomyopathy, DilatedCardiac CatheterizationAdrenergic beta-AgonistsEchocardiographyCardiomyopathy, HypertrophicSarcoplasmic ReticulumRats, WistarPotassium ChannelsMuscle, SkeletalMembrane PotentialsHeart ArrestModels, CardiovascularActomyosinDogsActinsMyoblasts, CardiacVentricular Function, LeftCardiac Output, LowChest PainHeart RateVentricular RemodelingCardiac Imaging TechniquesKineticsMyosin Heavy ChainsNatriuretic Peptide, BrainMice, TransgenicProspective StudiesReceptors, Adrenergic, betaCell SizeSarcoplasmic Reticulum Calcium-Transporting ATPasesHemodynamicsMuscle Fibers, SkeletalMuscle ContractionTroponin IPhosphorylationMyocardial Reperfusion InjuryCardiac GlycosidesCalcium-Binding ProteinsPredictive Value of TestsHeart TransplantationMyocarditisElectrophysiologyMolecular Sequence DataChickensRyanodine Receptor Calcium Release ChannelPeptide FragmentsAmino Acid SequenceCyclic AMP-Dependent Protein KinasesThiadiazines