(+)-Alpha-viniferin, a stilbene trimer from Caragana chamlague, inhibits acetylcholinesterase.

Sang Hyun Sung, So Young Kang, Ki Yong Lee, Mi Jung Park, Jeong Hun Kim, Jong Hee Park, Young Chul Kim, Jinwoong Kim, Young Choong Kim

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

In the course of screening natural products for anti-acetylcholinesterase (AChE) activity, we found that a total methanolic extract of the underground parts of Caragana chamlague (Leguminosae) had significant inhibition towards AChE. Bioactivity-guided fractionation of the total methanolic extract resulted in the isolation and identification of two active stilbene oligomers, (+)-alpha-viniferin (1) and kobophenol A (2). Both 1 and 2 inhibited AChE activity in a dose-dependent manner, and the IC50 values of 1 and 2 were 2.0 and 115.8 microM, respectively. The AChE inhibitory activity of 1 was specific, reversible and noncompetitive.

Original languageEnglish
Pages (from-to)125-127
Number of pages3
JournalBiological & pharmaceutical bulletin
Volume25
Issue number1
DOIs
StatePublished - Jan 2002

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