Occurrence of 7-dehydrocholesterol in the uropygial gland of domestic fowls.
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.
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
D002775:Cholestadienols; D003684:Dehydrocholesterols; D015067:17-Hydroxysteroid Dehydrogenases; D015096:3-Hydroxysteroid Dehydrogenases; D005966:Glucuronidase