Chemical constituents isolated from Polygala japonica leaves and their inhibitory effect on nitric oxide production in vitro

  • Seung Hyun Kim
  • , Sin Duk Jang
  • , Ki Yong Lee
  • , Sang Hyun Sung
  • , Young Choong Kim*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

A methanolic extract of dried leaves of Polygala japonica Houtt (Polygalaceae) significantly attenuated nitric oxide production in lipopolysaccharide-simulated BV2 microglia. Five anthraquinones chrysophanol (1), emodin (2), aloe-emodin (3), emodin 8-O-β-D-glucopyranoside (4) and trihydroxy anthraquinone (5), and four flavonoids kaempferol (6), chrysoeriol (7), kaempferol 3-gentiobioside (8) and isorhamnetin (9) were isolated from the methanolic extract using bioactivity-guided fractionation. Among them, compounds 1-4, 6 and 7 showed significant inhibitory effect on lipopolysaccharide-induced nitric oxide production in BV2 microglia at the concentrations ranging from 1.0 to 100.0 μM.

Original languageEnglish
Pages (from-to)230-233
Number of pages4
JournalJournal of Enzyme Inhibition and Medicinal Chemistry
Volume24
Issue number1
DOIs
Publication statusPublished - 2009
Externally publishedYes

Keywords

  • BV2 microglia
  • Inhibition
  • Lipopolysaccharide
  • Nitric oxide
  • Polygala japonica

ASJC Scopus subject areas

  • Pharmacology
  • Drug Discovery

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