Effect of selenium on carbimazole-induced testicular damage and oxidative stress in albino rats.
Carbimazole is an antithyroid drug used in treatment of hyperthyroidism. The present investigation studied the effect of carbimazole on testicular activity in albino rats and the ameliorative role of selenium. Treating rats with carbimazole (1.35 mg/kg b.w) daily for 8 weeks caused reduction in the body and testes weight. Moreover, the diameters of the seminiferous tubules and heights of their germinal epithelium were significantly reduced. Testes of treated rats showed many histological alterations included congestion of blood vessels, hemorrhage, degeneration of interstitial tissue and degeneration of spermatogenic cells with apoptosis and necrosis. Histochemical results revealed reduction in polysaccharides, total proteins and nucleic acids contents in testicular tissue. In addition, the level of testosterone, luteinizing hormone (LH), T(3), T(4) and thyroid stimulating hormone (TSH) was significantly decreased in sera of treated animals. Moreover, a high lipid peroxidation with a decrease in the enzymatic antioxidant status, superoxide dismutase (SOD) and catalase (CAT) was recorded in testes homogenate. Treating animals with carbimazole and selenium showed an improvement in the histological structure as well as histochemical components of the testis with an increase in the number of spermatogenic cells. There was an increase in testosterone, LH, T(3), T(4) and TSH levels. Moreover, administration of selenium led to decrease in malondialdehyde and increase in catalase and superoxide dismutase activities. It is suggested that the curative effect of selenium against testicular damage induced by carbimazole may be due to its antioxidant properties.
Sakr
Saber Abdul Ruhman
SA
Zoology Department, Faculty of Science, Menoufia University, Shebin El-kom, Egypt. sabsak@yahoo.com
Mahran
Hoda Abdel-hafez
HA
Nofal
Amany Ebrahem
AE
D000818:Animals; D002231:Carbimazole / Q000633:toxicity*; D008297:Male; D018384:Oxidative Stress; D051381:Rats; D012643:Selenium / Q000633:toxicity*; D013737:Testis / Q000187:drug effects* / Q000378:metabolism
D002231:Carbimazole; D012643:Selenium