Inhibitory Effects of Hoechunyanggyeok-san on Inflammation in Vivo and in Vitro

회춘양격산 물추출물의 항염증효과

  • 이태호 (대구한의대학교 한의과대학) ;
  • 조미정 (대구한의대학교 한방신약개발팀(BK21 Team)) ;
  • 박숙자 (대구한의대학교 한방신약개발팀(BK21 Team)) ;
  • 이종록 (대구한의대학교 한의과대학) ;
  • 백영두 (대구한의대학교 한의과대학) ;
  • 김종열 (한국한의학연구원) ;
  • 권영규 (부산대학교 한의전문대학원) ;
  • 김상찬 (대구한의대학교 한방신약개발팀(BK21 Team))
  • Published : 2009.12.25

Abstract

Hoechunyanggyeok-san (HYS) is a traditional oriental herbal medicine widely used for treating inflammatory disorders. Although there are numerous clinical results of HYS reported in the literature of oriental hebal medicine, it has been rarely conducted to evaluate the immuno-biological activity. The present study was conducted to examine the anti-inflammatory effects of HYS extract (HYSE) in vivo and in vitro. To determine the cytotoxic concentration of HYSE, cell viability was tested by MTT assay. All four doses of HYSE (0.01, 0.03, 0.10 and 0.30 mg/ml) had no significant cytotoxicity during the entire experimental period. In order to measure NO levels in culture medium, the cells were treated with $1\;{\mu}g/ml$ of LPS 1h before adding HYSE for 24 h and then culture medium were reacted with Griess reagent. Increased NO production and iNOS expression were detected in LPS-activated cells compared to control. However, these increases were dose-dependently attenuated by treatment with HYSE. LPS plays a key role in leading to the massive production of pro-inflammatory cytokines such as TNF-$\alpha$, IL-$1{\beta}$ and IL-6 in macrophages. Thus, we next determined the levels of these cytokines. HYSE reduced the elevated production of TNF-$\alpha$, IL-$1{\beta}$ and IL-6 by LPS. Moreover, the effects of HYSE were in a dose-dependent manner. In vivo, histopathological study, HYSE effectively inheefed the increases of hind paw skin thicknesses and inflammatory cell infiltrations induced by carrageenan treatment. It, therefore, considered that HYSE will be favorably inheefed the acute edematous inanner. In s. These findings showed that HYSE could have anti-inflammatory effects through the reduction of NO and inflammatory cytokines in macrophage. Furthermore, the reduction of carrageenan-induced paw oedema by HYSE helps to understand its actions on inflammatory conditions.

Keywords

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