WaterPermeabilityCell Membrane PermeabilityAquaporinsOsmosisAquaporin 1Body WaterCapillary PermeabilityWater-Electrolyte BalanceAquaporin 4Aquaporin 6Haloarcula marismortuiAquaporin 2Biological TransportOsmolar ConcentrationKidney Tubules, CollectingSodiumNecturusChloridesPotassiumVasopressinsMercuric ChlorideAquaporin 3Water SupplyAquaporin 5Hypotonic SolutionsSodium IsotopesEpitheliumLiliumErythrocytesCell MembraneOuabainBiological Transport, ActiveEpithelial CellsCell PolarityOsmotic FragilityCell SizeKineticsHederaKidney MedullaIon ChannelsKidney Concentrating AbilityBufo marinusFresh WaterErythrocyte MembraneBlood Group AntigensHydrogen-Ion ConcentrationPhloretinTime FactorsArginine VasopressinDogsXenopus laevisBryopsidaRenal AgentsDiffusionVasotocinOocytesMembrane ProteinsOsmotic PressureNorandrostanesIntracellular FluidModels, BiologicalUrinary BladderWater PollutionWater PurificationCalciumMannitolKidneyMagnetic Resonance SpectroscopyMicroscopy, ElectronUreaDiabetes Insipidus, NephrogenicIntercellular JunctionsMolecular Sequence DataDeamino Arginine VasopressinMicroscopy, FluorescenceLens, CrystallineCell LineHypertonic SolutionsCaco-2 CellsAnuraNecturus maculosusMembranes, ArtificialCells, CulturedCyclin G1RabbitsWater Pollutants, ChemicalAmino Acid SequenceLoop of HenleGramicidinBlood-Air BarrierTemperatureZonula Occludens-1 ProteinMembrane PotentialsMicrovilliGlycerolWater PollutantsCyclin GEye ProteinsLipid Bilayers