Isolation of antidiabetic compounds from tetracera Indica

Ahmed, Qamar Uddin and Hasan, Md. Mahmudul (Stu) and Mat So'ad, Siti Zaiton and Tengku Zakaria, Tengku Muhamad Faris Syafiq and Bakhtiar, M. Taher and Latip, Jalifah and Ahmad, Farediah and Sarian, Murni Nazira (2016) Isolation of antidiabetic compounds from tetracera Indica. In: International Conference on Natural Products 2016 (ICNP 2016), 15th-17th March 2016, Kuala Terengganu, Terengganu, Malaysia. (Unpublished)

PDF (Unpublished) - Accepted Version Restricted to Registered users only Download (5MB) | Request a copy

Abstract

Mempelas paya (Tetracera indica) is a rain forest climber of Malaysia which is traditionally used to treat various ailments including diabetes and its related infirmities. The objective of this research was to explore an in vitro antidiabetic activity of the stems of T. indica as well as to isolate the active principles responsible for its in vitro antidiabetic effect. In vitro antidiabetic evaluation was done on 3T3-L1 pre-adipocytes and adipocytes. Two flavones (wogonin and norwogonin) were isolated from the stems ethanol extract of T. indica and subjected to cytotoxicity test against 3T3-L1 adipocytes with regard to evaluate their antidiabetic potential. Both flavones were isolated and purified through silica gel and sephadex LH-20 column chromatography and their structures were elucidated through 1H-and 13C-NMR spectroscopy. Cytotoxicity test was performed through MTT assay on 3T3-L1 pre-adipocytes to determine the safe dose for further in vitro antidiabetic evaluation. The stems ethanol extract, fractions and both flavones were further subjected to adipogenesis to investigate insulin like activity or insulin sensitizing activity for the purpose of evaluating antidiabetic activity. Both flavones were introduced to the cells in three different safe concentrations as well as in different adipogenic cocktails. The adipogenic cocktails were modified by the compounds and rosiglitazone in the presence or absence of insulin. Results showed that both flavones induced adipogenesis like insulin and enhanced adipogenesis like rosiglitazone significantly. Furthermore, both flavones as well as rosiglitazone as positive control were subjected to fluorescence glucose uptake test by 2-NBDG (fluorescent glucose analog) on mature adipocytes. Results suggested significant glucose uptake activity by both flavones. It is suggested that further in depth study on both flavones might help to discover new safe antidiabetic agents. Keywords: Tetracera indica Merr., Dilleniaceae, Flavones, 3T3-L1 Adipocyte, Adipogenesis

Item Type:	Conference or Workshop Item (Poster)
Additional Information:	4921/61094
Uncontrolled Keywords:	Isolation of antidiabetic; Tetracera Indica
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Chemistry Kulliyyah of Pharmacy
Depositing User:	Dr Qamar Uddin Ahmed
Date Deposited:	25 Jan 2018 10:13
Last Modified:	04 Jan 2019 10:54
URI:	http://irep.iium.edu.my/id/eprint/61094

Actions (login required)

View Item