PERMEABILITY OF OVINE AMNION AND AMNIOCHORION TO UREA AND WATER

  • 1 January 1983
    • journal article
    • research article
    • Vol. 61  (2) , 227-232
Abstract
Permeability of ovine amnion and amniochorion to urea and water was measured in vitro at various gestational ages. Permeability of amniochorion was between 30 and 100% of that of amnion. Permeability of the membranes to water did not change with fetak age; permeability of amnion to urea decreased from 1.548 .+-. 0.541 (49) 10-4 cm .cntdot. s-1 to 0.277 .+-. 0.339 (102) 10-4 cm .cntdot. s-1 as fetal age increased. There was a significant relationship between the permeability of the amnion to urea and the concentration of urea in the amniotic fluid. The decrease in membrane permeability to urea may be responsible in part for the increase in amniotic fluid urea concentration observed as gestation progresses.

This publication has 0 references indexed in Scilit: