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

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 18^th 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.

Cardiovascular risk management - cardiovascular incidences - diabetes - autoimmunity - oxidative stress - metabolic features

References

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