Transfer of monovalent cations across the isolated human amniotic membrane
Guiet-Bara, A.; Bara, M.
Comptes Rendus des Seances de la Societe de Biologie et de ses Filiales 173(5): 875-880
1979
ISSN/ISBN: 0037-9026 PMID: 161183 Document Number: 143139
When the conductance and the bi-ionic potential are measured in vitro, monovalent cations are transferred according to a simple diffusion mechanism across the amnion (from the inside to the outside of the amniotic cavity or in the reverse direction) in channels with neutral or negative fixed sites. For equal concentration, the permeability to K+ is superior to that of Na+.
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