The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology (한방안이비인후피부과학회지)

The Society of Korean Medicine Ophthalmology, Otolaryngology & Dermatology (대한한방안이비인후피부과학회)
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Anti-inflammatory effects of the water extract of Ecliptae Herba

한련초(旱蓮草) 추출물의 항염증 효과

  • 조희창 (대구한의대학교 안이비인후피부과교실) ;
  • 정호준 (대구한의대학교 안이비인후피부과교실) ;
  • 김상찬 (대구한의대학교 한의과대학) ;
  • 지선영 (대구한의대학교 안이비인후피부과교실)
  • Received : 2010.07.08
  • Accepted : 2010.08.03
  • Published : 2010.08.25
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Abstract

Objective : The present study was examined to evaluate the effects of Ecliptae Herba on the production of inflammatory mediators in vivo and in vitro. Methods : In cell viability, all three doses of Ecliptae Herba extract (25, 50 and $100\;{\mu}g/ml$) had no significant cytotoxicity during the experimental period. The increases of NO production and iNOS expression were detected in LPS-activated cells compared to control, but these increases were dose-dependently attenuated by pre-treatment with Ecliptae Herba extract. Results : 1. LPS plays a pivotal roles in inducing to the massive production of pro-inflammatory cytokines such as TNF-$\alpha$, IL-$1{\beta}$ and IL-6 in macrophages. 2. Ecliptae Herba extract reduced the elevated production of cytokines by LPS. 3. Ecliptae Herba extract reduced $PGE_2$ levels in a dose-dependent manner as a consequence of inhibition of COX-2 activity. 4. Ecliptae Herba extract significantly reduced the nuclear translocation of $NF-{\kappa}B$ induced by LPS. 5. In histopathological study, Ecliptae Herba effectively inhibited the increases of hind paw edema, skin thicknesses and inflammatory cell infiltrations induced by carrageenan treatment. Conclusions : These results provide evidences that therapeutic effect of Ecliptae Herba on the acute inflammation is partly due to the reduction of some of inflammatory factors by inhibiting iNOS and COX-2 through the suppression of $NF-{\kappa}B$.

Keywords

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