@article {370, title = {Hypoglycemic Activity of Leaf Extracts from Tiliacora triandra in Normal and Streptozotocin-Induced Diabetic Rats}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {July 2017}, pages = {621-625}, type = {Original Article}, chapter = {621}, abstract = {

Background: Tiliacora triandra is a common plant found in southeast Asian countries. It is traditionally used as anti-pyrogenic agent. Objective: The present study was aimed to investigate the hypoglycemic activities leaf extracts from Tiliacora triandra (TTE) in normal and streptozotocin- induced diabetic rats. Methods: TTE was prepared and daily and orally administered at dose of 300 mg/kg b.w. to the rats for 8 weeks. The body weight and blood glucose level were measured weekly. At the end of the experiments, blood samples were collected from cardiac puncture and analyzed for serum insulin levels. The pancreatic tissues were stained by hematoxylin-eosin for histo-pathological investigations. Results: Normal and diabetic rats treated with TTE and glibenclamide tended to have an increased body weight. TTE significantly decreased the blood glucose level by 25.01 \± 19.77\% in week 3 in diabetic rats and similar to that of glibenclamide group (27.01 \± 11.89\%). However, the extracts slightly decreased the blood glucose level in normal rats by 9.48 \± 2.14\% in week 2. TTE significantly increased serum insulin level by 21.63 \± 1.39 IU/mL in diabetic rats compared to the controls (10.63 \± 0.37 IU/mL) but not in normal rats. In additions, TTE activated the regeneration of pancreatic Islets of Langerhans in diabetic rats which in turn stimulated insulin secretion. Conclusion: TTE exhibits the hypoglycemic potential by stimulating insulin secretion from the pancreas.

}, keywords = {Hypoglycemic Effect, Streptozotocin-Induced Diabetic Rats., Tiliacora triandra}, doi = {10.5530/pj.2017.5.99}, url = {/files/pj-9-5/10.5530pj.2017.5.99/index.html}, author = {Teeraporn Katisart and Surapong Rattana} } @article {97, title = {Chemical Constituents and in vitro anticancer activity of Tiliacora triandra leaves}, journal = {Pharmacognosy Journal}, volume = {8}, year = {2016}, month = {09/2015}, pages = {1-3}, type = {Original Article}, chapter = {1}, abstract = {

Introduction: \ Tiliacora triandra (F. Menispermaceae) is edible and is also known for medicinal values. The leaves are a popular flavoring in Southeast Asia, especially in the northeast of Thailand.\  The objectives of this study were to determine the major constituents of the leaves of T. triandra, and assess their anticancer activities against human cancer cell lines. Methods: The leaves were extracted by a soxhlet apparatus with petroleum ether, dichloromethane, ethyl acetate and water. Major constituents were then purified and identified using chromatographic procedures and various spectroscopic techniques.\  In vitro anticancer activity tests of T. triandra extracts were performed by resazurinmicroplate assay (REMA), and tested with 3 cell lines: oral cavity cancer (KB), lung cancer (NCI-H187) and breast cancer (MCF-7) cell lines. Results: The result indicated that the main compound of T. triandra leaves was oxoanolobine. The methanol extract showed the highest cytotoxic activity against lung cancer (NCI-H187) cell line whereas the water extract exhibited the highest activity against oral cavity cancer (KB) cell line. The IC50 of oxoanolobine against the NCI-H187 cell line was 27.60 \± 4.30 \µg/mL. Conclusion:T. triandra leaves contain oxoanolobine as the major constituent and have the potential of anticancer activity but are required to be investigated further.

}, keywords = {In vitro anticancer activity, Oxoanolobine, Phytochemistry, Tiliacora triandra, Yanang.}, doi = {10.5530/pj.2016.1.1}, author = {Surapong Rattana and Benjamart Cushnie and Ladachart Taepongsorat and Methin Phadungkit} }