title: Histochemical evidence for granulosa steroids in follicle maturation in the African catfish, Clarias lazera.
abstract: The effects of carp pituitary suspension (CPS) and 11-desoxycorticosterone-acetate (DOCA) on 3 beta-hydroxysteroid dehydrogenase (3 beta-HSD) and glucose-6-phosphate dehydrogenase (G6PD) activity in the ovary of Clarias lazera are described. Strong 3 beta-HSD and G6PD activities are localized in the stroma, of both control and treated fish. A single CPS injection stimulates 3 beta-HSD activity in the granulosa of postvitellogenic, maturing and post-ovulatory follicles, but DOCA has no such effect on the postvitellogenic and maturing follicles, and only stimulates a weak response in the postovulatory ones.
mesh_terms: D015096:3-Hydroxysteroid Dehydrogenases / Q000378:metabolism; D000818:Animals; D003900:Desoxycorticosterone / Q000494:pharmacology*; D005260:Female; D005399:Fishes / Q000502:physiology*; D005954:Glucosephosphate Dehydrogenase / Q000378:metabolism; D010053:Ovary / Q000201:enzymology / Q000502:physiology*; D010060:Ovulation / Q000187:drug effects; D010907:Pituitary Hormones / Q000494:pharmacology*
chemical_list: D010907:Pituitary Hormones; D003900:Desoxycorticosterone; D015096:3-Hydroxysteroid Dehydrogenases; D005954:Glucosephosphate Dehydrogenase