Epidemiological studies have shown that the consumption of some plant components can combat type 2 diabetes mellitus (T2DM) and its complications through various biological properties such as antioxidant activity. The extract of wampee peel (WP) exhibits several medical properties, especially antioxidant effects. We aimed to explore the antihyperlipidemic, hypoglycemic, and antioxidant effects of WP peel extract in an experimental T2DM rat model. T2DM was induced in the experimental groups by a high-fat diet and streptozotocin injection (HFD/STZ). Rats with a fasting blood glucose level above 200 mg/dl were considered diabetic and were separated into six groups (control, diabetic, diabetic treated with WP peel extract at 200, 400, or 600 mg/kg, and diabetic treated with metformin at 250 mg/kg). After 4 weeks of treatment, blood samples were collected for analysis. HFD/STZ-induced rats exhibited hyperglycemia, dyslipidemia, increased HbA1c, and increased lipid peroxidation, but reduced serum antioxidant enzyme activities. However, these changes were attenuated in T2DM rats with the highest dose of WP peel extract. Our results provide strong evidence that WP peel extract has antihyperlipidemic, antidiabetic, and antioxidant properties and thus also suggest that WP peel extract may be useful in developing novel agents for the management of T2DM.
Key words: Clausena lansium (Lour.), type 2 diabetes, antioxidant, antidiabetic activity, anti-hyperlipidemia
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