title: Steroid hormones in the postovulatory follicle of the domestic fowl (Gallus domesticus).
abstract: Progesterone, androstenedione, testosterone, oestrone and oestradiol were measured in the postovulatory follicle (POF) at various times up to 52 h after ovulation. The 3-fold decrease in progesterone, the major constituent, which occurred over the first 15--20 h resembled the changes previously described for the enzyme, 3beta-hydroxy-steroid dehydrogenase. At 1 h before ovulation the granulosa cells of the anteovulatory follicle (AOF) contained 50 times more progesterone than the POF granulosa fraction collected 2--3 h later. The thecal portion of the AOF had progesterone concentrations 5 times those of the POF theca, but the latter contained higher concentrations of androstenedione and oestrone.
mesh_terms: D000818:Animals; D002645:Chickens / Q000378:metabolism*; D005260:Female; D012739:Gonadal Steroid Hormones / Q000378:metabolism*; D006107:Granulosa Cells / Q000378:metabolism; D006080:Ovarian Follicle / Q000378:metabolism*; D010060:Ovulation; D013799:Theca Cells / Q000378:metabolism; D013997:Time Factors
chemical_list: D012739:Gonadal Steroid Hormones