Electric ImpedanceTight JunctionsOccludinZonula Occludens-1 ProteinCell Membrane PermeabilityDrug ResistancePermeabilityClaudin-1Drug Resistance, MicrobialCaco-2 CellsDrug Resistance, BacterialCapillary PermeabilityClaudinsIntercellular JunctionsEpithelial CellsDrug Resistance, NeoplasmDiffusion Chambers, CultureMembrane ProteinsMannitolClaudin-5Tight Junction ProteinsElectric ConductivityDrug Resistance, MultipleClaudin-4Cesium IsotopesDisease ResistanceCells, CulturedVascular ResistanceZonula Occludens-2 ProteinBlood-Brain BarrierEpitheliumIntestinal MucosaEndothelial CellsDrug Resistance, ViralDogsDrug Resistance, Multiple, BacterialClaudin-3DextransInulinBlood-Retinal BarrierCell LineAnti-Bacterial AgentsBlood-Air BarrierCadherinsAdherens JunctionsFluorescein-5-isothiocyanatePhosphoproteinsMicrobial Sensitivity TestsEndothelium, VascularElectroosmosisBiological TransportFreeze FracturingMyosin Light ChainsIon ExchangeActinsTetracycline ResistanceCell PolarityElectrophysiologyMutationSwinePlant DiseasesPenicillin ResistancePulmonary ArteryChloridesEnterocytesPhosphorylationCattleTime FactorsDrug Resistance, FungalAirway ResistanceMembrane PotentialsLLC-PK1 CellsEscherichia coliDose-Response Relationship, DrugSignal TransductionEnzyme InhibitorsPigment Epithelium of EyeCytoskeletonMicroscopy, FluorescenceFluoresceinMicroelectrodesMolecular Sequence DataEndotheliumSodiumAlbuminsbeta-Lactam ResistanceCell SurvivalSkin AbsorptionBacterial ProteinsResistance TrainingModels, BiologicalRespiratory MucosaReverse Transcriptase Polymerase Chain ReactionEpithelium, CornealCell Culture TechniquesIntestinesAmilorideMicroscopy, ConfocalR FactorsMicroscopy, Electron