Calcium SignalingGap JunctionsCell CommunicationSuraminAstrocytesConnexin 43CalciumReceptors, Purinergic P2ConnexinsExtracellular SpaceAdenosine TriphosphateCalcium ChannelsCells, CulturedCalcium, DietarySignal TransductionCalcium CarbonateCalcium PhosphatesCalcium IsotopesCalcium ChlorideCalcium Channels, L-TypeCalcium OxalateCalcium GluconateCalcium RadioisotopesCalcium CompoundsCalcium Channels, N-TypeEgtazic AcidCalcium Channel AgonistsCalcimycinCalcium HydroxidePhosphorusNifedipineCalcium SulfateParathyroid HormoneMembrane PotentialsMagnesiumChelating AgentsFura-2Calcium CitrateKineticsThapsigarginS100 Calcium Binding Protein GRyanodine Receptor Calcium Release ChannelCalcium PyrophosphateCalcium Metabolism DisordersVerapamilCalcium-Binding ProteinsDihydropyridinesCytosolTime FactorsLanthanumPatch-Clamp TechniquesCalcium Channels, P-TypeDiltiazemDose-Response Relationship, DrugPotassiumKidney CalculiHypocalcemiaNeuronsAequorinIntracellular FluidCalmodulinReceptors, Calcium-SensingCalcium Channels, Q-TypeStrontiumInositol 1,4,5-Trisphosphate ReceptorsHypercalcemiaIonophoresVitamin DFluorescent DyesIonomycinElectrophysiologyRabbitsCalcium Channels, R-TypeInositol 1,4,5-TrisphosphateSodiumRats, Sprague-DawleyBone and BonesIntestinal AbsorptionCaffeineHomeostasisomega-Conotoxin GVIAMyocardiumCalcinosisNitrendipineHydrogen-Ion ConcentrationCell LineCalcitriolIon ChannelsRyanodineNimodipineIon TransportIon Channel GatingParathyroid Glandsomega-ConotoxinsOxalatesRats, WistarIsradipineMolecular Sequence DataMineralsSarcoplasmic Reticulum Calcium-Transporting ATPases