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Open Access Research article

A preliminary evaluation of antihyperglycemic and analgesic activity of Alternanthera sessilis aerial parts

Ahamed Ismail Hossain1, Mohammad Faisal1, Shahnaz Rahman1, Rownak Jahan1 and Mohammed Rahmatullah12*

Author Affiliations

1 Department of Biotechnology and Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka 1209, Bangladesh

2 University of Development Alternative, House No. 78, Road No. 11A (new),Dhanmondi, Dhaka 1209, Bangladesh

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BMC Complementary and Alternative Medicine 2014, 14:169  doi:10.1186/1472-6882-14-169

Published: 24 May 2014

Abstract

Background

Alternanthera sessilis is used by folk medicinal practitioners of Bangladesh for alleviation of severe pain. The objective of this study was to scientifically analyze the analgesic (non-narcotic) property of aerial parts of the plant along with antihyperglycemic activity.

Methods

Antihyperglycemic activity was measured by oral glucose tolerance tests. Analgesic (non-narcotic) activity was determined by observed decreases in abdominal writhings in intraperitoneally administered acetic acid-induced pain model in mice.

Results

Administration of methanol extract of aerial parts led to dose-dependent and significant reductions in blood glucose levels in glucose-loaded mice. At doses of 50, 100, 200 and 400 mg per kg body weight, the extract reduced blood sugar levels by 22.9, 30.7, 45.4 and 46.1%, respectively compared to control animals. By comparison, a standard antihyperglycemic drug, glibenclamide, when administered at a dose of 10 mg per kg body weight, reduced blood glucose level by 48.9%. In analgesic activity tests, the extract at the above four doses reduced the number of abdominal writhings by 27.6, 37.9, 41.4, and 44.8%, respectively. A standard analgesic drug, aspirin, reduced the number of writhings by 31.0 and 51.7%, respectively, when administered at doses of 200 and 400 mg per kg body weight.

Conclusion

The results validate the folk medicinal use of the plant to alleviate pain. At the same time, the antihyperglycemic activity result suggests that the plant may be a potential source for blood sugar lowering drug(s).

Keywords:
Antihyperglycemic; Alternanthera sessilis; Glucose tolerance; Non-narcotic analgesic; Amaranthaceae