the activities of the hepatic microsomal 2alpha- , 2beta- , 7alpha- and 18-hydroxylase systems active on 5alpha- [ 4- ( 14 ) c ] androstane-3alpha,17beta-diol were studied in male and female rats which had been castrated at birth and at the age of 7 , 13 , 21 , 27 , 34 , 43 and 55 days , treated for 5 days with 2mg of testosterone propionate/kg body weight and killed 6 days after castration .
C0002854
androstane
C0039607
testosterone propionate