sertoli cells from lead-treated animals converted significantly less ( p less than 0.01 ) progesterone to 5 alpha-pregnane-3 alpha , 20 alpha-diol , 3 alpha-hydroxy-5 alpha-pregnan-20-one , dht , and 20 alpha-hydroxy-4-pregnen-3-one .
C0033308
progesterone
C0012311
20 alpha-hydroxy-4-pregnen-3-one