significant increase of the enzyme activity was observed for 17 alpha-hydroxylase in the pyloric caeca of female animals exposed to zinc ( pregnenolone -- -- 17 alpha-hydroxypregnenolone ) or cadmium ( progesterone -- -- 17 alpha-hydroxyprogesterone ) , for 17 beta-hydroxysteroiddehydrogenase in the gonads of female animals ( dehydroepiandrosterone -- -- androstenediol ) and in pyloric caeca of male animals ( androstenedione -- -- testosterone ) after exposure to cadmium , and for 5 alpha-reductase ( progesterone -- -- 5 alpha-pregnane-3,20-dione ) in ovaries of cadmium exposed sea star .
C0373704
pregnenolone
C0376260
17