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Urinary androstanes from seven species of male great apes (human, bonobo, chimpanzee, lowland gorilla, mountain gorilla, Bornean orangutan, and Sumatran orangutan) were separated by HPLC and detected by RIA using two testosterone antibodies. All animals examined showed the presence of testosterone and six additional immunoreactive peaks. Although testosterone was the dominant peak (85%) in human urine,...
Studies were performed to characterize hepatic and intestinal transport, as well as biotransformation during transport, of a spectrum of fluorescent bile acids containing a fluorophore attached to the side chain. The following two classes of compounds were studied: 1) aminofluorescein (amF) coupled directly to the carboxylic group of a bile acid which was cholic, ursodeoxycholic, or cholylglycine;...
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