Hong Kong Journal of Nephrology
Volume 11, Issue 2 , Pages 59-65, October 2009

Cardiac Damage Induced by Renal Ischemia/Reperfusion Injury in Hyperlipidemic Rats: Role of PPAR-α Agonist

  • Yagnik Bhalodia

      Affiliations

    • Department of Pharmacology, Smt. R.B. Patel Mahila Pharmacy College, Shreemati Nathibai Damodar Thackersey Women's University, Dist. Rajkot, Gujarat, India
    • Corresponding Author InformationCorrespondence to: Dr. Yagnik Bhalodia, Department of Pharmacology, Smt. R.B. Patel Mahila Pharmacy College, Bhavanagar Road, Kailash Nagar, Atkot-360040, Dist. Rajkot, Gujarat, India. Fax: (+ 91) 2821-288350
    • ,
  • Navin Sheth

      Affiliations

    • Department of Pharmaceutical Sciences, Saurashtra University, Dist. Rajkot, Gujarat, India
    • ,
  • Jitendra Vaghasiya

      Affiliations

    • Department of Pharmacology, Smt. R.B. Patel Mahila Pharmacy College, Shreemati Nathibai Damodar Thackersey Women's University, Dist. Rajkot, Gujarat, India
    • ,
  • Nurudin Jivani

      Affiliations

    • Department of Pharmacology, Smt. R.B. Patel Mahila Pharmacy College, Shreemati Nathibai Damodar Thackersey Women's University, Dist. Rajkot, Gujarat, India

Article Outline

Background

In view of the reported efficacy of peroxisome proliferator-activated receptor-α in renal ischemia/reperfusion (I/R) injury, the present study was designed to investigate the effect of fenofibrate on cardiac damage induced by renal I/R in hyperlipidemic rats.

Methods

Male Wistar rats were divided into five groups: Group 1, normal control; Group 2, hyperlipidemic control; Group 3, renal I/R injury; Group 4, hyperlipidemic + renal I/R injury; and Group 5, hyperlipidemic +renal I/R injury + fenofibrate. Hyperlipidemia was induced by feeding the rats with cholesterol (500 mg/kg per oral) in hydrogenated ground nut oil (as a vehicle) for 4 weeks. At the end of the fourth week, renal I/R injury was induced by occlusion of both renal vascular pedicles for 60 minutes, followed by 24-hour reperfusion. In the treatment group, fenofibrate (100 mg/kg per oral, dissolved in water containing 0.2% methyl cellulose) was given 2 weeks before I/R injury. At the end of the experiment, blood and heart were isolated for biochemical analysis.

Results

Hyperlipidemic I/R rats have significantly higher levels of cardiac lipid peroxidation, xanthine oxidase, nitric oxide and myeloperoxidase, and lower levels of antioxidant enzymes (reduced glutathione, superoxide dismutase and catalase) compared to non-hyperlipidemic I/R rats, the levels of which were restored after treatment with fenofibrate. Cardiac functional enzymes were normalized after the administration of fenofibrate.

Conclusion

This study elucidated the oxidative role of cardiac damage induced by renal I/R via inflammatory mediators, which was attenuated by fenofibrate.

Key words:  cardiac damage , fenofibrate , ischemia/reperfusion , kidney , oxidative stress

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PII: S1561-5413(09)60244-1

doi:10.1016/S1561-5413(09)60244-1

Hong Kong Journal of Nephrology
Volume 11, Issue 2 , Pages 59-65, October 2009

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