Résumé
Mitomycin C (MC), an antibiotic which depresses DNA synthesis causes suppression of enzyme delta 5 3 beta-hydroxysteroid dehydrogenase (delta 5 3 beta OHD) and glucose-6 phosphate dehydrogenase (G-6 PD) in the rat adrenal tissue. The treatment resulted in a fall in DNA content together with an accumulation of cholesterol and ascorbic acid in the gland. The results suggest a diminution in adrenal steroid biogenesis similar to gonadal inhibition previously reported.
Sujets)
11-beta-Hydroxysteroid dehydrogenases , Glandes surrénales/effets des médicaments et des substances chimiques , Animaux , Acide ascorbique/métabolisme , Cholestérol/métabolisme , ADN/métabolisme , Femelle , Glucose 6-phosphate dehydrogenase/métabolisme , Hydroxysteroid dehydrogenases/métabolisme , Mitomycine/pharmacologie , Rats , Rat Wistar , Stéroïdes/biosynthèseRésumé
Chronic administration (sc) of the extract of the stalk of P. betle at 30 mg/kg body weight daily for 21 days produced significant decrease in oestrogen and androgen dependent target organ weights along with increase in cholesterol in adrenal, ovary and testis. Acid and alkaline phosphatase activities in serum, liver and kidney did not exhibit any toxic effect. There was marked change in morphology of testis and ovary. Vaginal smear showed prolonged dioestrus in treated female. The treated male showed decreased number and motility of sperm. Both male and female remained infertile after treatment suggesting antifertility activity of the extract on both sexes of albino rats.