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  • Title: Effect of a combined treatment with erythropoietin and melatonin on renal ischemia reperfusion injury in male rats.
    Author: Ahmadiasl N, Banaei S, Alihemati A, Baradaran B, Azimian E.
    Journal: Clin Exp Nephrol; 2014 Dec; 18(6):855-64. PubMed ID: 24493464.
    Abstract:
    BACKGROUND: Renal ischemia reperfusion (IR) is an important cause of renal dysfunction. It contributes to the development of acute renal failure. Oxidative damage from reactive oxygen species is considered to be the principal component involved in the pathophysiological tissue alterations observed during IR. The purpose of this study was to evaluate the effect of a combined treatment with erythropoietin (EPO) plus melatonin (MEL), which are known anti-inflammatory and antioxidant agents, in IR-induced renal injury in rats. METHODS: Wistar Albino rats were unilaterally nephrectomized and subjected to 45 min of renal pedicle occlusion followed by 24 h of reperfusion. MEL (10 mg/kg, i.p) and EPO (5000 U/kg, i.p) were administered prior to ischemia. After 24 h of reperfusion, blood samples were collected for the determination of superoxide dismutase (SOD), glutathione peroxidase (GPx), plasma levels of total antioxidant capacity (TAC), and malondialdehyde (MDA) and serum urea level. Also, renal samples were taken for histological evaluation. RESULTS: Ischemia reperfusion significantly increased urea, blood SOD, and GPx levels. Histological findings of the IR group indicated that there was increase in tubular and glomerular hyaline cast, thickening of Bowman capsule basement membrane, and renal impairment in the glomerular epithelium. Treatment with EPO and MEL significantly decreased blood SOD, GPx, and urea levels and increased TAC level. In the EPO + MEL group, while the histopathological changes were lower than those in EPO group, they were the same as MEL group. CONCLUSION: EPO and MEL combination treatment exerted more nephroprotective effects than EPO treatment and nearly had protective effects similar to MEL treatment.
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