PermeabilityCell Membrane PermeabilityCapillary PermeabilityModels, BiologicalMathematicsTight JunctionsBlood-Brain BarrierWaterElectric ImpedanceMannitolLactuloseDiffusionMitochondrial Membrane Transport ProteinsDentin PermeabilityEvans BlueModels, TheoreticalOsmosisMembrane PotentialsKineticsOccludinCalciumTime FactorsBiological TransportIntestinal AbsorptionPotassiumSodiumComputer SimulationAquaporinsMitochondrial SwellingBody WaterAlgorithmsChloridesIon ChannelsTechnetium Tc 99m PentetateGlomerular Filtration RateDextransCaco-2 CellsAquaporin 1Mathematical ConceptsInulinZonula Occludens-1 ProteinElectric ConductivityEndothelium, VascularFluoresceinBlood-Retinal BarrierIntercellular JunctionsCells, CulturedHydrogen-Ion ConcentrationAlbuminsModels, StatisticalRegression AnalysisReproducibility of ResultsModels, ChemicalMembranes, ArtificialOsmolar ConcentrationCyclophilinsRats, Sprague-DawleyIntestinal MucosaFluoresceinsBiological Transport, ActiveIntracellular MembranesMitochondriaUreaSkin AbsorptionRabbitsFluorescein-5-isothiocyanateCreatinineLungEndothelial CellsClaudinsMembrane ProteinsSucroseClaudin-5Cell MembraneCattleVascular Endothelial Growth Factor ABlood-Air BarrierMitochondria, LiverCapillariesTemperatureRats, WistarPulmonary EdemaIonsEpitheliumFluorescent DyesCyclosporineReference ValuesRubidiumDose-Response Relationship, DrugLinear ModelsMicrocirculationAnuraPredictive Value of TestsCystatin CTight Junction ProteinsNonlinear DynamicsBiophysicsDiffusion Chambers, CultureIntestinesAnions