title: Effect of human chorionic gonadotropin on the testicular delta 5-3 beta-hydroxysteriod dehydrogenase and spermatogenesis in hibernating toad (Bufo melanostictus).
abstract: A histochemical study of testicular delta 5-3 beta-hydroxysteroid dehydrogenase (delta 5-3 beta-OHD) and a quantitative study of seminiferous tubules in hibernating toad following the administration of HCG revealed stimulation in the activity of the enzyme delta 5-3 beta-OHD and the spermatogenesis by increasing spermiation, meiotic division and the maturation of secondary spermatogonia.
mesh_terms: D000818:Animals; D002025:Bufonidae; D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D006605:Hibernation; D006913:Hydroxysteroid Dehydrogenases / Q000032:analysis*; D008297:Male; D013091:Spermatogenesis / Q000187:drug effects*; D013737:Testis / Q000201:enzymology*
chemical_list: D006063:Chorionic Gonadotropin; D006913:Hydroxysteroid Dehydrogenases