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 language | English |
|---|---|
| Pages (from-to) | 230-233 |
| Number of pages | 4 |
| Journal | Journal of Enzyme Inhibition and Medicinal Chemistry |
| Volume | 24 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2009 |
| Externally published | Yes |
Keywords
- BV2 microglia
- Inhibition
- Lipopolysaccharide
- Nitric oxide
- Polygala japonica
ASJC Scopus subject areas
- Pharmacology
- Drug Discovery