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KMID : 0861020080230030163
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Korea Journal of Herbology
2008 Volume.23 No. 3 p.163 ~ p.173
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Anti-inflammatory Effect of Imyosan Extract is more potent than that of its Component Herb Extracts in Murine Macrophages
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Yun Hyun-Jeong
Park Sun-Dong
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Abstract
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Objectives : Imyosan (IMS), a drug preparation comprised of Phellodendri Cortex (PC) and Atractylodis Rhizoma (AR), is commonly used as a traditional herbal medicine in Korea and China for the treatment of various inflammatory diseases. However, little is known about the effect of IMS and its component herbs on inflammatory mediators in RAW 264.7 cells. Therefore, in this study, methanol extracts of IMS and its component herbs were examined to determine if they inhibited inflammatory effects in RAW264.7 cells.
Methods : Cytotoxic activity of IJHT and its components on RAW 264.7 cells was using 5-(3-carboxymethoxyphenyl)-2H-tetrazolium inner salt (MTS) assay. The nitric oxide (NO) production was measured by Griess reagent system. And proinflammatory cytokines were measured by ELISA kit. The levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression were detected by western blot.
Results : Methanol extract of IMS and its component herbs were significantly reduced iNOS and COX-2 expression as well as NO, PGE2, IL-1β and IL-6 production in RAW 264.7 cells.
Conclusions : The results of this study indicated that the anti-inflammatory effect of Imyosan extract is more potent than that of extracts of its component herbs in macrophages.
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KEYWORD
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Imyosan, IMS, Phellodendri Cortex, PC, Atractylodis Rhizoma, AR, cytokine, inflammation
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