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Dung beetle (Catharsius molossus, CA) is a well-known group of insects thanks to their exploitation of animal feces, a behavioral trait with a global impact on earth’s ecosystems. This study was conducted to investigate the effect of CA extract on a high-fat diet in SD rats. Male rats were divided into 5 groups. Animals were fed on a high-fat diet for seven weeks before and dung beetle extract for a month during the administration. Weight gain was decreased in ethanol extract from CA group. Administration of CA extract reduced the organ weight of testis and kidney, and adipose tissue weight. Lipid oxidative stress was evaluated measuring malondialdehyde level in liver. There were no significant differences in groups. Protein oxidative stress was evaluated measuring protein carbonyl content in blood. The protein carbonyl in blood was significantly decreased in ethanol and acetone extracted dung beetle groups (p<0.05). Meanwhile, the protein carbonyl in hepatocyte was not significant among the groups. Fibronectin and laminin by using D-HUVEC cell in vitro were measured by ELISA assay. There was significance in CA extract. The level of IL-10, IL-1β, VEGF, eNOS was evaluated by ELISA. There was significance in IL-10 compared to control (p<0.05). SOD and GPx tended to increase by CA extract. Furthermore, CAT was increased significantly by CA extract (p<0.05). After administration of CA extracts the composition of saturated fatty acid in adipose tissue tend to decrease, while unsaturated fatty acid increases. In conclusion, dung beetle had anti-hyperglycemia effects of oxidative stress and antioxidant activity.

Anti-oxidative and Anti-hyperglycemia Effects of Dung Beetle Extracts on the High Fat Diet SD Rats