Abstract
A new humulene sesquiterpene, 5-hydroxyzerumbone (5-hydroxy-2E,6E,9E- humulatrien-8-one) (1) and a known compound, zerumboneoxide (2) were isolated from the rhizomes of Zingiber zerumbet (Zingiberaceae), and found to inhibit lipopolysaccharide-induced nitric oxide production in murine macrophage RAW 264.7 cells with IC50 values of 14.1 and 23.5 μM, respectively, by bioassay-guided fractionation (positive control: Nω-monomethyl-L- arginine, IC50=21.3 μM). The structure of 1 was determined by spectroscopic methods including 1D and 2D-NMR.
Original language | English |
---|---|
Pages (from-to) | 829-831 |
Number of pages | 3 |
Journal | Chemical and Pharmaceutical Bulletin |
Volume | 53 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2005 |
Keywords
- 5-hydroxyzerumbone
- Nitric oxide production
- Zerumboneoxide
- Zingiber zerumbet