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Abstract Title:

Ellagic acid protects against cisplatin-induced nephrotoxicity in rats: a dose-dependent study.

Abstract Source:

Eur Rev Med Pharmacol Sci. 2013 Feb ;17(3):299-310. PMID: 23426532

Abstract Author(s):

N Al-Kharusi, H A Babiker, S Al-Salam, M I Waly, A Nemmar, I Al-Lawati, J Yasin, S Beegam, B H Ali

Article Affiliation:

N Al-Kharusi

Abstract:

BACKGROUND: The anticancerdrug cisplatin (CP) causes nephrotoxicity through different mechanisms, including generation of free radicals. Ellagic acid (EA) is a polyphenolic antioxidant found in fruits and nuts.

AIM: This study aimed to investigate the ability of different doses of EA to ameliorate CP nephrotoxicity in rats.

MATERIALS AND METHODS: Animals were randomly divided into six groups and treated with saline; CP alone (6 mg/kg); two doses of EA, both alone (10 and 30 mg/kg) or with CP.

RESULTS: Treatment with CP alone reduced body weight, water intake, urine output, and renal total antioxidant and reduced glutathione (GSH) concentrations (p<0.01). In addition, it increased relative kidney weight, plasma creatinine, and blood urea nitrogen (BUN) concentrations (p<0.01). However, a dose of 30 mg/kg EA mitigated most of the CP-induced actions, but no effect was seen for the 10 mg/kg dose. Histopathologically, rats given CP+EA30 showed<25% necrotic lesions in the renal cortical area compared with>60% in rats treated with CP alone. Molecular analysis showed that clusterin (Clu) mRNA and protein were expressed in all treated groups, meanwhile kidney injury molecule-1 (Kim-1) mRNA and protein were only expressed in the CP and CP+EA treated rats.

CONCLUSIONS: EA (30 mg/kg) ameliorated most of the physiological, histological, and biochemical markers of CP nephrotoxicity. The molecular findings in this work did not completely tally with the conventional method used. The overexpression of the molecular markers may be related to the EA induced repair mechanism.

Study Type : Animal Study

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Sayer Ji
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