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    題名: Comparative anti-inflammatory characterization of wild fruiting body;liquid-state fermentation;and solid-state culture of Taiwanofungus camphoratus in microglia and the mechanism of its action.
    作者: 梁有志
    Liu DZ;Liang HJ;Chen CH;Su CH;Lee TH;Huang CT;Hou WC;Lin SY;Zhong WB;Liang YC
    貢獻者: 醫學檢驗暨生物技術學系
    日期: 2007
    上傳時間: 2009-08-25 10:38:02 (UTC+8)
    摘要: Taiwanofungus camphoratus (syn. Antrodia camphorata), a medicinal mushroom in Taiwan, is reputed to provide several therapeutic benefits,
    but the wild fruiting body is very rare. In this study, we used Taiwanofungus camphoratus extracts from wild fruiting bodies and two types of
    artificial cultivation (solid-state culture and liquid-state fermentation) to examine their anti-inflammatory effects in microglia cells and their possible
    roles in protection against neurodegenerative diseases. First, EOC13.31 microglia was treated with various kinds of Taiwanofungus camphoratus
    extracts and lipopolysaccharide (LPS) and interferon- (IFN-) to evaluate the iNOS expression. Western blot and RT-PCR analysis showed that
    among the various kinds of extracts from wild fruiting bodies, methanol extracts were the most potent inhibitors of iNOS expression. Secondly, the
    potency of methanol extracts could be ranked as follows: extracts of wild fruiting body > solid-state culture > liquid-state fermentation. To clarify
    the mechanisms involved, methanol extracts from fruiting body were found to inhibit the phosphorylation of extracellular signal-regulated protein
    kinases (ERK), c-Jun NH2-terminal protein kinases (JNK) and signal transducer and activator of transcription-1 (STAT-1) induced by LPS/IFN-
    . Methanol extracts from fruiting body also inhibited NF-B activation through the prevention of inhibitor B (IB) degradation. Moreover,
    methanol extracts from wild fruiting body inhibited both the iNOS and cyclooxygenase-2 (COX-2) expression induced by -amyloid in microglia
    in a dose-dependent manner. In an animal model, we confirmed that methanol extracts from fruiting bodies were able to suppress ear edema,
    indicating that they have anti-inflammatory activity in vivo. These results suggest that Taiwanofungus camphoratus exhibits an anti-inflammatory
    activity that might contribute to the prevention of neurodegenerative diseases.
    關聯: J. Ethnopharmacol.(113):45-53.
    顯示於類別:[醫學檢驗暨生物技術學系所] 期刊論文

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