Effect of perillyl alcohol (POH) a monoterpene on lipid peroxidation and antioxidant status in high fat diet-low dose STZ induced type 2 diabetes in experimental rats

Abstract

Aim: The plan of this study was to assess the protective activity of Perillyl alcohol (POH) on the levels of lipid peroxidation (LPO) by-products and antioxidant defense systems in the plasma and other tissues of normal and High Fat Diet-Low Dose Streptozotocin (STZ) induced type 2 diabetes in wistar rats. Materials and Methods: The experimental diabetes was induced in animals by High Fat Diet-Low Dose STZ (35 mg/kg i.p.) injection, and treatment with Perillyl alcohol at the dose of (50mg/kg b.w and 100mg/kg b.w) was continued for 30 days. At the end of treatment period, oxidative stress parameters like lipid peroxidation by-products; enzymatic antioxidants such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and non-enzymic antioxidants including reduced glutathione, Vitamin C and Vitamin E were measured in the plasma and tissues of experimental rats. Results: In untreated diabetic rats an increase was seen in the levels of lipid peroxidation by-products and significant decrease was seen in antioxidant enzymes. Oral administration of Perillyl alcohol a monocyclic monoterpene to diabetic rats for 30 days caused a significant reduction in the levels of lipid peroxidation by-products and an increase in the activities of antioxidant enzymes, when the same were compared with the untreated diabetic group. Conclusion: The result of this study indicates that Perillyl alcohol has anti lipid peroxidation and antioxidant status potential in experimental diabetes.