Exp Clin Endocrinol Diabetes 2007; 115(6): 365-371
DOI: 10.1055/s-2007-971056
Article

© J. A. Barth Verlag in Georg Thieme Verlag KG Stuttgart · New York

Protective Effects of Chronic Melatonin Treatment Against Renal Ischemia/Reperfusion Injury in Streptozotocin-Induced Diabetic Rats

Z. Kurcer 1 , H. Parlakpinar 2 , N. Vardi 3 , S. Tasdemir 2 , M. Iraz 2 , E. Fadillioglu 4 , F. Baba 5 , M. Gül 3
  • 1Department of Pharmacology, Faculty of Medicine, Harran University, Sanliurfa, Turkey
  • 2Department of Pharmacology, Faculty of Medicine, Inonu University, Malatya, Turkey
  • 3Department of Histology and Embriology, Faculty of Medicine, Inonu University, Malatya, Turkey
  • 4Department of Physiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
  • 5Department of Phathology, Faculty of Medicine, Harran University, Sanliurfa, Turkey
Further Information

Publication History

received 10. 9. 2006 first decision 1. 2. 2007

accepted 1. 2. 2007

Publication Date:
08 June 2007 (online)

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Abstract

Aims: The purpose of this study was to investigate the effects of chronic administration of melatonin on renal ischemia/reperfusion (IR) injury in streptozotocin (STZ)-induced diabetic rats.

Methodology: Male Sprague-Dawley rats were divided into six groups: control (C), diabetes mellitus (DM), control+IR (C+IR), DM+IR, Melatonin+IR (Mel+IR), DM+Mel+IR. Diabetic and non-diabetic rats were given melatonin 4 mg/kg/day, i.p., for 15 days. The left renal artery and vein of rats were occluded for 30 min at the 18th day, followed by 24 h of reperfusion.

Results: In comparison with control group, the levels of malondialdehyde (MDA), protein carbonyl (PC) and and nitric oxide (NO) were determined to be higher in the renal homogenates of DM, DM+IR and C+IR groups. MDA and NO levels were found to be similar in the DM+melatonin+IR and control groups. The most significant histological damage was found in the DM+IR group and this damage was significantly reduced by melatonin.

Conclusion: Chronic melatonin treatment reduces renal injury by reducing lipid oxidation and NO production in STZ-induced diabetic rats exposed to IR.

References

Correspondence

Z. Kurcer

Department of Pharmacology

Faculty of Medicine

Harran University

63200 Sanliurfa

Turkey

Phone: +90/414/312/84 56 (2491)

Fax: +90/414/313/96 15

Email: zykurcer@yahoo.com

Email: zykurcer@harran.edu.tr