when prostaglandins ( pg ) were tested at 100 microm concentrations , an inhibition of the human placental 20 alpha-hsdh by pge1 ( 80 % inhibition ) , pge2 ( 70 % ) , pgf1 alpha ( 40 % ) pgf2 alpha ( 30 % ) and 13,14-dihydro-15-keto-pgf2 ( pgfm ) ( 20 % ) was observed .
C0033554
prostaglandins
C0012472
pge2