A curcuminoid and sesquiterpenes as inhibitors of macrophage TNF-alpha release from Curcuma zedoaria.
Planta Med
; 67(6): 550-2, 2001 Aug.
Article
em En
| MEDLINE
| ID: mdl-11509978
ABSTRACT
Tumor necrosis factor-alpha (TNF-alpha) is one of the major mediators produced in activated macrophages which contribute to the circulatory failure associated with septic shock. In the course of screening marketed oriental anti-inflammatory herbal drugs for TNF-alpha antagonistic activity, a crude methanolic extract of the rhizomes of Curcuma zedoaria exhibited significant activity. The activity-guided fractionation and repetitive chromatographic procedures with the EtOAc-soluble fraction resulted in the isolation of three active compounds. They were identified as 1,7-bis(4-hydroxyphenyl)-1,4,6-heptatrien-3-one (1), procurcumenol (2) and epiprocurcumenol (3) by spectral data analysis. They inhibited the production of TNF-alpha by lipopolysaccharide (LPS)-activated macrophages from the results of bioassay (IC(50) values of 1 and 2 are 12.3 and 310.5 microM, respectively) and Western blot assay. These results imply that the traditional use of C. zedoaria rhizome as anti-inflammatory drug may be explained at least in part, by the inhibition of TNF-alpha production.
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Base de dados:
MEDLINE
Assunto principal:
Fenóis
/
Sesquiterpenos
/
Anti-Inflamatórios não Esteroides
/
Fator de Necrose Tumoral alfa
/
Curcumina
/
Zingiberaceae
/
Macrófagos
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Planta Med
Ano de publicação:
2001
Tipo de documento:
Article