[Steroid metabolism in primates. XIX. Urinary excretion of C21-steroids in Cercopithecus aethiops and Erythrocebus patas].

In male Cercopithecus aethiops (green monkey; grivet) and Erythrocebus patas (dancing red monkey; patas monkey), the pattern of urinary C21 steroids was estimated and compared with those of man, baboon and rhesus monkey. The results indicate diminished 11 beta- and 17 alpha-hydroxylation in steroid biosynthesis as well as diminished delta 4-3-keto reduction and increased 20 beta-reduction in metabolism in these two species.