Heart FailureHeartCardiac Output, LowCardiomyopathy, DilatedMyocardiumMyocardial ContractionHeart VentriclesMyocytes, CardiacHeart TransplantationHeart RateHemodynamicsVentricular Function, LeftVentricular RemodelingSarcoplasmic Reticulum Calcium-Transporting ATPasesReceptors, Adrenergic, betaCalcium-Transporting ATPasesCardiotonic AgentsStroke VolumeCardiomegalySarcoplasmic ReticulumHeart Failure, SystolicRNA, MessengerSodium-Calcium ExchangerMyocardial IschemiaCalciumAtrial Natriuretic FactorCalcium-Binding ProteinsHeart Failure, DiastolicHeart DiseasesCells, CulturedPatient TransferTime FactorsSystoleSympathetic Nervous SystemGene ExpressionNatriuretic Peptide, BrainIsoproterenolMyosin Heavy ChainsVentricular Dysfunction, LeftHeart AtriaAdrenergic beta-AntagonistsChronic DiseaseTreatment FailureBlotting, WesternCardiomyopathiesGene Expression RegulationMuscle ProteinsHeart Defects, CongenitalCyclic AMP-Dependent Protein KinasesTreatment OutcomeEchocardiographyHeart-Assist DevicesCardiac Pacing, ArtificialPhosphorylationHeart Function TestsFetal HeartMyocardial InfarctionCase-Control StudiesHeart ValvesDown-RegulationFollow-Up StudiesDogsAction PotentialsProspective StudiesMolecular Sequence DataAngiotensin-Converting Enzyme InhibitorsPropanolaminesBiological MarkersPrognosisDiureticsRisk FactorsMutationDose-Response Relationship, DrugEndocardiumDiastoleHospitalizationSignal TransductionRats, Sprague-DawleyMice, Inbred C57BLExercise TestOxygen ConsumptionSeverity of Illness IndexVentricular PressureMice, KnockoutKidneyModels, CardiovascularRats, WistarRetrospective StudiesKineticsNorepinephrineAmino Acid SequenceCell LineKidney Failure, ChronicPredictive Value of TestsFibrosisDigoxinBase SequenceImmunohistochemistryCarbazolesSpeech, Alaryngeal