ConnexinsGap JunctionsConnexin 43Cell CommunicationLens, CrystallineIntercellular JunctionsTight JunctionsCarbenoxoloneGlycyrrhetinic AcidFreeze FracturingHeptanolAdherens JunctionsNeuromuscular JunctionOctanolsZonula Occludens-1 ProteinElectrical SynapsesIsoquinolinesMicroscopy, ElectronMembrane ProteinsCells, CulturedImmunohistochemistry