although the inhibitory potency of indomethacin for one isozymes of testosterone 17 beta-dehydrogenase and 3 alpha-hydroxysteroid dehydrogenase decreased with changing ph from 9.7 to 7.0 , that of the nonsteroidal estrogens for all the enzymes was little affected by ph .
C0022173
isozymes
C0014442
enzymes