Se. Shideler et al., ENZYME IMMUNOASSAYS FOR OVARIAN-STEROID METABOLITES IN THE URINE OF MACACA-FASCICULARIS, Journal of medical primatology, 22(5), 1993, pp. 301-312
In vivo studies using carbon 14 labeled estradiol (E(2)) and progester
one (Po) were performed to characterize the time course and metabolic
fate of circulating E(2) and Po. Co-chromatography of human, orangutan
, and macaque luteal phase urine samples demonstrated the presence of
a steroid conjugate peak in all three species that was identified as b
eing androsterone and etiocholanolone glucuronides. An enzyme immunoas
say for urinary metabolites of Po was developed subsequently for Macac
a spp. using a monoclonal antibody that cross-reacted with both C-19 a
nd C-21 metabolites.