title: Occurrence of 7-dehydrocholesterol in the uropygial gland of domestic fowls.
abstract: Histochemical studies on the uropygial gland of domestic fowls have shown the presence of sterols (among which cholesterol and its esters) in the lipidic fraction of the gland secret. beta-Glucuronidase activity beside A5 3beta- and 17beta-hydroxysteroid dehydrogenase activities suggests that uropygial gland might be involved in sterols metabolism. By thin layer chromatography cholesterol and 7-dehydrocholesterol can be separated from the uropygial extracts and these compounds can be identified in gas liquid chromatography.
mesh_terms: D015067:17-Hydroxysteroid Dehydrogenases / Q000032:analysis; D015096:3-Hydroxysteroid Dehydrogenases / Q000032:analysis; D000818:Animals; D002645:Chickens / Q000033:anatomy & histology*; D002775:Cholestadienols / Q000032:analysis*; D003684:Dehydrocholesterols / Q000032:analysis*; D005088:Exocrine Glands / Q000032:analysis* / Q000201:enzymology; D005260:Female; D005966:Glucuronidase / Q000032:analysis; D006120:Grooming; D008297:Male
chemical_list: D002775:Cholestadienols; D003684:Dehydrocholesterols; D015067:17-Hydroxysteroid Dehydrogenases; D015096:3-Hydroxysteroid Dehydrogenases; D005966:Glucuronidase