1Department of Pharmacology and Toxicology, School of Pharmacy, University of Medical Sciences, Zanjan, Iran.
2Department of basic science, Science and Research branch, Islamic Azad University, Tehran, Iran.
3Faculty of Pharmacy, Shaheed Beheshti University of Medical Sciences, Tehran P.O. Box 14155-6153, Iran.
4Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
5Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran.
6Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Postal Code 45139-56184, Zanjan, Iran.
Diabetes mellitus is associated with complications in several different systems of the body, and the incidence of diabetes is rapidly increasing worldwide. The objective of the present study was to evaluate the effect of aqueous extract of Cydonia oblonga Mill. Fruit on lipid profile and some biochemical parameters in streptozotocin-induced diabetic rats. The extract showed anti hyper lipidemic activity as evidenced by significant decreases in serum triglyceride, total cholesterol, and low density lipoprotein cholesterol (LDL-C) levels along with the elevation of high density lipoprotein cholesterol (HDL-C) in the diabetic rats. The biochemical liver functional tests were also analyzed and it was shown that serum biomarkers of liver dysfunction, including alanine transaminase (ALT), aspartate transaminase (AST), and alkaline phosphatase (ALP) were significantly reduced in aqueous extract of Cydonia oblonga Mill. treated diabetic rats. In addition, our results showed that the oral administration of the extract prevented diabetes-induced increase in serum urea and creatinine levels as the markers of renal dysfunction. In conclusion, the present study indicates that aqueous extract of Cydonia oblonga Mill. Is able to improve some of the symptoms associated with diabetes and possesses hypolipidemic, hepatoprotective, and renoprotective effects in streptozotocin-induced diabetic rats.