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Title

THE HISTOLOGICAL, HISTOMORPHOMETRICAL AND HISTOCHEMICAL CHANGES OF TESTICULAR TISSUE IN THE METFORMIN TREATED AND UNTREATED STREPTOZOTOCIN-INDUCED ADULT DIABETIC RATS

Pages

 Start Page 13 | End Page 24

Abstract

 In this investigation, DIABETES was induced in adult male Sprague-Dawley RATs by single intraperitoneal injection of STREPTOZOTOCIN (STZ) at 45 mg kg-1 of body weight. A group comprised of 8 diabetic RATs was treated with METFORMIN at 100 mg kg-1 of body weight for reducing the elevated blood glucose level. The results revealed that, in the untreated diabetic RATs, the body and testicular weight reduced in comparison with the control RATs (P < 0.05) , the METFORMIN treated diabetic RATs showed body weight loss in comparison with the control group (P < 0.05). In the untreated diabetic RATs, the blood glucose level significantly increased in comparison with control and METFORMIN treated diabetic RATs. Histomorphological examinations revealed a reduction in testicular capsule diameter, seminiferous tubules (STs) and germinal epithelium height, increase of amorphous material of interstitial tissue, germ cell depletion, decrease in cellular population, activity, and disruption of spermatogenesis in the untreated diabetic RATs in comparison with control group. In METFORMIN treated diabetic RATs, the histomorphological alterations were seen in lesser part in comparison with untreated diabetic group. The results from this study proved that, there was a direct relationship between increased levels of blood glucose as a result of STZ-induced DIABETES and the histomorphological changes of testicular tissue.

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