Evaluation of Antidiabetic Effect of Ethanolic Leaves Extract of Becium grandiflorum Lam. (Lamiaceae) in Streptozotocin-Induced Diabetic Mice
Open Access
- 1 May 2020
- journal article
- research article
- Published by Taylor & Francis Ltd in Diabetes, Metabolic Syndrome and Obesity
- Vol. ume 13, 1481-1489
- https://doi.org/10.2147/dmso.s246996
Abstract
Background: Becium grandiflorum has been used traditionally for treatment of different ailments including diabetes mellitus although it lacks scientific evidence. Thus, the present study was aimed at evaluating the antidiabetic effect of Becium grandiflorum in streptozotocin (STZ)-induced diabetic mice. Methods: The antidiabetic activity of hydro-ethanolic (30:70) leaf extract of Becium grandiflorum was evaluated in STZ (45 mg/kg)-induced diabetic and normal mice. Antihyperglycemic, hypoglycemic, oral glucose tolerance and body weight change effects of the extract were assessed after administering three doses of the extract (200, 400 and 600 mg/kg), glibenclamide 5 mg/kg (reference drug) and 2% Tween 80 (vehicle). One-way analysis of variance and Tukey’s post hoc test were used for data analysis. Results: All doses of the extract (200 mg/kg (p< 0.05), 400 mg/kg (p< 0.05) and 600 mg/kg (p< 0.01)) and glibenclamide 5 mg/kg (p< 0.001) showed statistically significant blood glucose level reduction in normal mice as compared to Tween 80. The hydroalcoholic extract at a dose of 200 mg/kg (p< 0.05), 400 mg/kg (p< 0.01) and 600 mg/kg (p< 0.001) showed better blood glucose tolerance after 60, 120 and 180-minute treatment duration in normal mice as compared to negative control. In diabetic mice, Becium grandiflorum doses and the reference drug caused maximum reduction in blood glucose level at the end of the 15th day of treatment by 17.61%, 22.52%, 24.62% and 34.12%, respectively. The extract’s doses and the standard drug showed significant (p< 0.05) improvement in body weight while the diabetic control continued to lose their body weight. Conclusion: Thus, Becium grandiflorum exhibits antihyperglycemic activity in STZ-induced diabetic mice, and shows improvement in oral glucose tolerance and body weight, which justifies the claimed use of the plant in ameliorating diabetes mellitus in Ethiopian folk medicine.Keywords
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