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Purpose: To examine the potential of extracts from selected herbs used in African traditional medicine in diabetes patients, and to determine their effect on traits of metabolic syndrome in rats fed a high-fat and high-fructose diet.Methods: Ethanol and aqueous extracts were prepared from Mangifera indica (MI), Lonchocarpus eriocalyx (LE), Urtica massaica (UM), Schkuhria pinnata (SP) and Launaea cornuta (LC). Ethanol extracts (1:100 dilution) were examined for inhibition of pancreatic lipase and α-glucosidase activity invitro. Furthermore, aqueous extracts were administered for 74 days to male Wistar rats fed a high-fat and high-fructose diet to assess their effect on traits of metabolic syndrome.Results: Ethanol extracts showed at least 30 % inhibition of pancreatic lipase in vitro but no effect on α- glucosidase activity. Administration of the aqueous extracts caused significant reduction in liver triglycerides (except for LE). Muscle triglycerides and fat were also reduced, with the most pronounced effect elicited by LE. Urinary glucose excretion and plasma triglycerides, but not hyperinsulinemia and insulin resistance, were reduced by UM compared to control.Conclusion: This exploratory study indicates that UM may be considered a candidate for the prevention and management of type 2 diabetes. Keywords: Kenyan traditional medicine, High-fat diet, High fructose, Insulin resistance, Triglycerides, Diabetes, Liver steatosis

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