OuabainSodium-Potassium-Exchanging ATPasePotassiumSodiumCalciumCardiac GlycosidesHistamine ReleaseBiological Transport, ActiveDigoxinRubidiumCells, CulturedKineticsDigitoxinDose-Response Relationship, DrugTime FactorsGuinea PigsMembrane PotentialsEnzyme InhibitorsDelayed-Action PreparationsAdenosine TriphosphateRats, Sprague-DawleyRabbitsSaponinsRubidium RadioisotopesNeurotransmitter AgentsRyanodine Receptor Calcium Release ChannelSodium IsotopesAcetylcholineCardiotonic AgentsEthacrynic AcidLithiumRats, WistarStrophanthinsDigitalis GlycosidesNorepinephrineBufanolidesElectric StimulationCell MembraneStimulation, ChemicalCalcium SignalingBiological TransportVirus ReleaseDogsCell LineMagnesiumMyocardiumCell Membrane PermeabilityCardanolidesSarcoplasmic ReticulumTritiumSecretory RatePotassium IsotopesHydrogen-Ion ConcentrationAmilorideRats, Inbred StrainsCalcium ChannelsAdenosine TriphosphatasesSynaptic TransmissionGuanabenzGlutamic AcidPerfusionDepression, ChemicalMyocardial ContractionMuscle ContractionElectrophysiologyPotassium ChlorideVeratrineEgtazic AcidTetrodotoxinCatecholaminesExtracellular SpaceCalcimycinNitric OxideSodium-Calcium ExchangerExocytosisBumetanideAction PotentialsBinding SitesHeartNeuronsSignal TransductionFurosemideErythrocytesOsmolar ConcentrationCattleDopamineSerotoninPresynaptic TerminalsMonensinModels, BiologicalAnuraKidneyCholineEnzyme ActivationPatch-Clamp TechniquesInositol 1,4,5-Trisphosphate ReceptorsGlucoseMusclesBiological FactorsIon Transport