Gap JunctionsMyocardiumConnexinsConnexin 43Intercellular JunctionsMyocytes, CardiacHeartMuscle ProteinsCardiomyopathiesHeart VentriclesTight JunctionsCell CommunicationRats, WistarIsoenzymesProtein Kinase CRats, Sprague-DawleyCarbenoxoloneAdherens JunctionsGlycyrrhetinic AcidFreeze FracturingHeptanolNeuromuscular JunctionCardiac OutputOctanolsArrhythmias, CardiacCardiac Surgical ProceduresDeath, Sudden, CardiacZonula Occludens-1 ProteinMicroscopy, ElectronElectrical SynapsesIsoquinolinesCells, CulturedMembrane ProteinsTime FactorsCardiac Pacing, ArtificialCardiomegalyLens, CrystallineHeart DiseasesMyocardial ContractionOccludinCardiac TamponadeElectrophysiologyDogsElectric ConductivityEsophagogastric JunctionMolecular Sequence DataCalciumHeart Conduction System1-OctanolImmunohistochemistryCadherinsCardiac CatheterizationMembrane PotentialsMicroscopy, ConfocalDesmosomesFluorescent DyesHeart ArrestTight Junction ProteinsHolliday Junction ResolvasesMice, KnockoutElectrocardiographyLindaneCell Membrane PermeabilityAnimals, NewbornHeart FailureIon ChannelsBase SequenceMice, Inbred C57BLFluorescent Antibody TechniqueModels, BiologicalRNA, MessengerEpithelial CellsAction PotentialsRabbitsSignal TransductionPatch-Clamp TechniquesCell MembraneAmino Acid SequenceCell LineMyoblasts, CardiacMutationMicroscopy, FluorescenceFreeze EtchingCardiac MyosinsHeart RateCardiac Imaging TechniquesBlotting, WesternVentricular RemodelingCalcium SignalingMyocardial InfarctionHeart AtriaIon Channel GatingCardiac GlycosidesEchocardiographyPhosphorylationModels, CardiovascularHemodynamicsEye ProteinsDisease Models, AnimalTransfection