METABOLISM OF THE STEROID HORMONES: THE METABOLISM OF TESTOSTERONE IN THE MALE CHIMPANZEE1

Abstract
The oral adm. of 1.5 gms. of testosterone propionate to each of 2 adult [male] chimpanzees produced a 13-fold increase in urinary androgenic substances. Androsterone and etio-cholanol-3 ([alpha])-17-one have been identified as urinary metabolites of testosterone in the [male] chimpanzee. This finding is in accord with previous studies on men. Androsterone-17 was also isolated from the urinary extracts but this substance is considered to be formed by dehydration of androsterone during the hydrolysis and extraction of the urine.