Anti-Hyperglycemic Activity of Phyllanthus emblica Leaves and Bark in Alloxan-Induced Diabetic Rats

Abstract

Phyllanthus emblica is empirically used to treat various diseases. Chemical compounds in this plant includes benzene derivatives, diterpen and monoterpen, furanolacton, flavonoids and sterols. The purpose of this research is to investigate anti-hyperglycemic activity of P. emblica. The diabetic animal model was obtained by administration of alloxan 120 mg/kg BW intraperitonial. The rats were divided into 9 groups, i.e., normal group, negative control (1% CMC), positive control (glibenclamide 0.5 mg/kg BW) and P. emblica leaves and bark ethanol extract at the dose of 500, 750, and 1000 mg/kg BW. Determination of flavonoid content was performed through colorimetric method using UV-Vis spectrophotometer at 425 nm. After 7 days of induction, the entire group was treated for 21 days, fasting blood glucose was performed on days 0, 1, 8, 15 and 22. Then the data of fasting blood glucose level in mice was treated with one way ANOVA analysis and advanced test with post hoc Least Significant Differences (LSD) method. The percentage of the blood glucose decrease from the animal treated with leaves extract at doses of 500, 750 and 1000 mg/kg BW, respectively, were 22.47%; 21.03%; and 24.52%, while those of bark extract were 32.19%; 31.61%; and 37.24%, respectively. Determination of total flavonoid level showed that the highest amount of flavonoids was observed in leaves (35.838 mg/g Quercetin). In conclusion, P. emblica bark and leaves showed anti-hyperglycemic activity. Keywords: anti-hyperglycemic, alloxan, Phyllanthus emblica, Wistar