Electrical Potential Difference Across the Mid-Term Human Placenta

Electrical Potential Difference Across the Mid-Term Human Placenta

Electrical potential difference across the midterm human placenta was recorded during hysterotomy. The average value registered was 2.7 mV (S.E. of mean=0.4 mV, n=7), fetus negative. From this value and the concentrations of Na, K, Ca, CI and inorganic phosphate in maternal and fetal plasma the poss...

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Veröffentlicht in:Acta obstetricia et gynecologica Scandinavica 1978, Vol.57 (2), p.125-126
Hauptverfasser: Stulc, J., Svihovec, J., Drabkova, J., Stnbrny, J., Kobilkova, J., And, I. Vido, Dolezal, A.
Format: Artikel
Sprache:eng
Schlagworte:
Action Potentials
Female
Fetal Blood
Humans
Hysterectomy
Ions
Maternal-Fetal Exchange
Placenta - physiology
Pregnancy
Pregnancy Trimester, Second
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Zusammenfassung:Electrical potential difference across the midterm human placenta was recorded during hysterotomy. The average value registered was 2.7 mV (S.E. of mean=0.4 mV, n=7), fetus negative. From this value and the concentrations of Na, K, Ca, CI and inorganic phosphate in maternal and fetal plasma the possible mechanisms of net transport from mother to fetus are inferred. It is concluded that of the above ions only the transport of Na is compatible with simple diffusion.
ISSN:0001-6349
1600-0412
DOI:10.3109/00016347809155889