the conversion of exogenous arachidonic acid into prostaglandin e2 ( pge2 ) was studied in human placenta and fetal membranes microsomes rat and human alpha-fetoproteins ( afps ) at 170 micrograms/ml in the incubation medium , a concentration that does not exceed the physiological concentration observed in rat and human body fluids during pregnancy , decreased by 75 % and 90 % respectively the amount of pge2 synthesized .
C0032961
pregnancy
C0012472
pge2