Nasal MucosaAmilorideChloridesEpitheliumMembrane PotentialsIon TransportBiological Transport, ActiveSodiumOuabainTracheaKidney Tubules, ProximalElectrophysiologyPerfusionPotassiumBiological TransportRabbitsSodium IsotopesMalpighian TubulesBumetanideDiffusion Chambers, CultureGillsElectric ConductivityCell Membrane PermeabilityAbsorptionEpithelial CellsSodium-Potassium-Exchanging ATPaseBicarbonatesPigment Epithelium of EyeFurosemide4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic AcidCystic FibrosisBody FluidsElectric ImpedanceSodium ChlorideNasal PolypsNasal SeptumIntestinal MucosaNoseTight JunctionsCystic Fibrosis Transmembrane Conductance RegulatorSerous MembraneMannitolCyclic AMPNasal Lavage FluidPotentiometryFludrocortisonePermeabilityCells, CulturedIntestinal AbsorptionNasal DecongestantsCaco-2 CellsJejunumCalciumOccludinGastric MucosaHydrogen-Ion ConcentrationNasal BoneMice, Inbred CFTRColonIleumTransendothelial and Transepithelial MigrationSkin Physiological PhenomenaTriamtereneAnuraEpithelial Sodium ChannelsKidney Tubules, CollectingEthoxzolamidePhlorhizinKidney TubulesSweatIon ExchangeIonsZonula Occludens-1 ProteinRespiratory MucosaElectrochemistryNasal SpraysOsmolar ConcentrationStrophanthinsChloride ChannelsMucociliary Clearance4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidWater-Electrolyte BalancePeripheral Nervous System AgentsDogsAcetazolamideElectrolytesSodium Channel BlockersElectrodesChlorineWaterEmeproniumRectumMucous MembraneClaudin-1Nose NeoplasmsKidney Tubules, Distal