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Recombinant human erythropoietin prevents cisplatin-induced genotoxicity in rat liver and heart tissues via an antioxidant process.

Drug and chemical toxicology

Recombinant Proteins, pharmacology, Antioxidants, Catalase, metabolism, Cisplatin, toxicity, Comet Assay, DNA Damage, Erythropoietin, Glutathione, Heart, drug effects, Liver, Male, Myocardium, Oxidative Stress, Protein Carbonylation, Random Allocation, Rats, Rats, Wistar, Animals, Antineoplastic Agents

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      Abstract

      Cisplatin (Cisp) is one of the most effective chemotherapeutic agents. However, at higher doses, liver and heart injuries may occur. Recombinant human erythropoietin (rhEPO) has recently been shown to exert an important cytoprotective effect in many tissues. For that reason, we tried to check the protective effect of rhEPO against Cisp-induced genotoxicity and oxidative stress in liver and heart tissues. Our experiments were performed using six groups of adult male Wistar rats. The control group was treated only with saline solution. The rhEPO group was given a single dose of rhEPO. The Cisp group was given a single injection of Cisp. The rhEPO+Cisp groups were given rhEPO simultaneously, 24 hours before, and 5 days after Cisp injection. Our results clearly showed that Cisp induced noticeable DNA damage in the liver and heart, accompanied by a significant increase in protein carbonyl level, reduced glutathione (GSH) depletion, and a decrease in catalase activity. Rats treated with rhEPO, simultaneously, before, or after Cisp injection, remarkably decreased DNA damage. It decreased also the protein carbonyl level, restored GSH depletion, and enhanced catalase activity. Our results highlight an interesting cytoprotective strategy using rhEPO against Cisp-induced liver and heart injuries.

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      Journal
      10.3109/01480545.2011.589445
      21834696

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