[Permeability of the isolated human amniotic membrane to divalent cations].
Membrane potential and resistance recordings, in vitro, show that Mg++ does not pass through the amnion from the inside of the amniotic compartment to the outside of the amniotic membrane. Mg++ may become fixed on the surface or in the midst of the amniotic membrane. However, Mg++ diffuses in the opposite direction. Ca++, Ba++, Sr++ diffuse in both directions across the amniotic membrane.
D000650:Amnion / Q000378:metabolism*; D001464:Barium / Q000378:metabolism; D001692:Biological Transport; D002118:Calcium / Q000378:metabolism; D002413:Cations, Divalent; D005260:Female; D006801:Humans; D007700:Kinetics; D008274:Magnesium / Q000378:metabolism; D010539:Permeability; D011247:Pregnancy; D013324:Strontium / Q000378:metabolism
D002413:Cations, Divalent; D001464:Barium; D008274:Magnesium; D002118:Calcium; D013324:Strontium
Perméabilité de la membrane amniotique humaine isolée aux cations divalents.