title: Anti-inflammation activities of essential oil and its constituents from indigenous cinnamon (Cinnamomum osmophloeum) twigs.
abstract: In this study, chemical compositions of hydrodistilled essential oil and anti-inflammatory activities from the twigs of Cinnamomum osmophloeum Kaneh. were investigated for the first time. The chemical constituents of the twig essential oil were further analyzed by GC-MS and they were found to be L-bornyl acetate (15.89%), caryophyllene oxide (12.98%), gamma-eudesmol (8.03%), beta-caryophyllene (6.60%), T-cadinol (5.49%), delta-cadinene (4.79%), trans-beta-elemenone (4.25%), cadalene (4.19%), and trans-cinnamaldehyde (4.07%). The effects of essential oil on nitric oxide (NO) and prostaglandin E2 (PGE2) production in lipopolysaccharide (LPS)-activated RAW 264.7 macrophages were also examined. Results of nitric oxide tests indicated that twig essential oil and its major constituents such as trans-cinnamaldehyde, caryophyllene oxide, L-borneol, L-bornyl acetate, eugenol, beta-caryophyllene, E-nerolidol, and cinnamyl acetate have excellent activities. These findings demonstrated that essential oil of C. osmophloeum twigs have excellent anti-inflammatory activities and thus have great potential to be used as a source for natural health products.
authors.affiliation: School of Forestry and Resource Conservation, National Taiwan University, Taipei 106, Taiwan.
authors.forename: Yu-Tang
authors.initials: YT
authors.lastname: Tung
authors.forename: Meng-Thong
authors.initials: MT
authors.lastname: Chua
authors.forename: Sheng-Yang
authors.initials: SY
authors.lastname: Wang
authors.forename: Shang-Tzen
authors.initials: ST
authors.lastname: Chang
mesh_terms: D000171:Acrolein / Q000031:analogs & derivatives / Q000494:pharmacology; D000818:Animals; D000893:Anti-Inflammatory Agents / Q000494:pharmacology*; D016923:Cell Death / Q000187:drug effects; D002460:Cell Line; D027424:Cinnamomum / Q000737:chemistry* / Q000187:drug effects; D003474:Curcumin / Q000494:pharmacology; D015232:Dinoprostone / Q000096:biosynthesis; D006801:Humans; D008070:Lipopolysaccharides / Q000494:pharmacology; D051379:Mice; D009569:Nitric Oxide / Q000096:biosynthesis; D009822:Oils, Volatile / Q000737:chemistry / Q000494:pharmacology*