Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/22224
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    標題: Armillariella mellea shows anti-inflammatory activity by inhibiting the expression of NO, iNOS, Cox-2 and cytokines in THP-1 cells
    作者: Shu-Jing Wu
    Jenn-Yi Tsai
    Min-Nan Lai
    Lean-Teik Ng
    貢獻者: 營養與保健科技研究所
    關鍵字: Armillariella mellea
    日期: 2007
    上傳時間: 2010-01-15 11:13:29 (UTC+8)
    摘要: Armillariella mellea (AM), also known as Mi-Huan-Ku, a popular medicinal fungus used in the traditional Chinese medicine for treating headache, neurasthenia and insomnia. In the present study, our aim was to determine the effects of aqueous (AAM) and ethanol (EAM) extracts of A. mellea on lipopolysaccharide (LPS)-induced inflammatory response by measuring the inducible nitric oxide synthase (iNOS), cyclooxygenase-1 and -2 (COX-1 and COX-2) protein expression, cytokines (TNF-α, IL-4 and IL-8) formation, nitric oxide (NO) release and prostaglandin (PGE2) production in human monocytic (THP-1) cells. At concentration of 100 μg/ml, EAM, but not AAM, effectively protected against LPS-induced cell death in THP-1 cells. At concentrations of 10~100 μg/ml, EAM showed a potent anti-inflammatory activity as demonstrated by a dose-dependent inhibition of LPS (1 μg/ml)-induced release of NO and PGE2, and significantly decreased the transcription of proinflammatory cytokines. EAM at 100 μg/ml significantly blocked the LPS induction of iNOS and COX-2 expression, but not COX-1. Therefore, the protective effect of EAM against LPS-induced inflammatory mediators release could explain, at least in part, its effectiveness in alleviating certain inflammatory related diseases.
    顯示於類別:[保健營養系(所) ] 期刊論文


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