Viability, placental

It maintains placental viability, thus ensuring adequate exchange of substances between maternal and fetal compartments ... 

The fetal and maternal flow rates were set at 40-80 ml/min and 450 ml/min, respectively, and an amniotic fluid pressure of 15 mm Hg was maintained over the placenta throughout the experiment. Oxygen tensions were 60-160 mm Hg in the maternal artery and 14-28 mm Hg in the fetal vein. Glucose was added at the beginning of the perfusion to help maintain placental viability. 

Placental Viability. Fluid Transfer. Fluid transfer from the fetal to the maternal circulation of more than 2 ml/min of blood solution was... 

G.R. Cannell, R.M. Kluck, S.E. Hamilton, R.H. Mortimer, W.D. Hooper, and R.G. Dickinson. Markers of physical integrity and metabolic viability of the perfused human placental lobule. Clin Exp Pharmacol Physiol. 15 837-844 (1988). 

The placenta, although of vital importance for the viability and the development of the conceptus, is a neglected organ in most prenatal toxicity studies for pesticides. Older studies often give no information at all, while newer investigations contain at least placental... 

Placental tissue can be retained as explant cultures (Siman et at., 2001 Merchant et ai, 2004), although Di Santo and eoworkers (2003) have shown that the Irophoblast viability is very restricted despite culture conditions. Explants from normal and lUGR pregnancies were cultured by Merchant and coworkers to study matrix mctalloproteinases. Placental explams can also be cultured after placental perfusion and have been used to show integration of a gene construct (Heikkila el ai. 2002),... 

Di Santo, S., Maick. A Sager, R., Andres, A.-C., and Schneider. H, (2(H)3). Trophoblasi viability in pcriused term placental tissue and explant cultures limited to 7-24 hours. Placenta 24, 882-894. 

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