Permeability characteristics of the guinea pig biliary apparatus
Nicola Tavoloni, Herman R. Wyssbrod, Mary Jane T. Jones – 1 November 1986 – To determine the mechanism and pathway of entry of polar nonelectrolytes into bile, we studied first the permeation of [3H]H2O, [14C]urea, [14C]erythritol, [14C]mannitol, [3H]sucrose, [3H]inulin and [3H]dextran across an isolated, in situ perfused segment of the guinea pig's extrahepatic bile duct. All of these molecules, except [3H]dextran, permeated the bile duct. The diffusive permeability coefficients (cm per sec per 106) ranged from 248 for [3H]H2O to 1.2 for [3H]inulin.