Signal TransductionClaudinsClaudin-3Claudin-1Claudin-4Tight JunctionsClaudin-5Membrane ProteinsOccludinZonula Occludens-1 ProteinZonula Occludens-2 ProteinClaudin-2Blood-Testis BarrierPermeabilityElectric ImpedanceTissue EmbeddingTakifuguEpithelial CellsHypercalciuriaGitelman SyndromeNephrocalcinosisCell Membrane PermeabilityCaco-2 CellsLoop of HenleFreeze FracturingNeuroepithelial CellsEpitheliumGillsDogsAdherens JunctionsSertoli CellsAdenoma, Oxyphilic