INFLUENCE OF CA IONS AND PH ON OSMOTIC POTENTIAL DIFFERENCES THROUGH SMALL-INTESTINE EPITHELIA

Abstract

Kinetic features of the behavior of osmotic potential differences through the epithelial cell layer were characteristic of determination of mechanical properties of intercellular junctions [in rats]. The quantitative estimation of the contribution of tight junction and simple junctions to the value of mechanical connection was performed. The mechanism of structure reorganization in intercellular junctions under osmotic pressure are discussed. A model of intercellular junctions that accounts for the essential feature of transepithelial potential differences under the osmotic pressure is proposed.