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  • Title: Proteomic Analysis of Anti-inflammatory Effects of a Kampo (Japanese Herbal) Medicine "Shoseiryuto (Xiao-Qing-Long-Tang)" on Airway Inflammation in a Mouse Model.
    Author: Nagai T, Nakao M, Shimizu Y, Kodera Y, Oh-Ishi M, Maeda T, Yamada H.
    Journal: Evid Based Complement Alternat Med; 2011; 2011():604196. PubMed ID: 19861507.
    Abstract:
    Effects of a Kampo (Japanese herbal) medicine "shoseiryuto (SST, xiao-qing-long-tang in Chinese)", which has been used for the treatment of allergic bronchial asthma clinically, were examined on ovalbumin (OVA)-sensitized allergic airway inflammation model (i.e., bronchial asthma) in a mouse. When SST was orally administered at 0.5 g kg(-1) day(-1) from day 1 to 6 after OVA inhalation, SST reduced the inflammation in lung tissue, the number of eosinophils and the OVA-specific immunoglobulin E (IgE) antibody titer in bronchoalveolar lavage (BAL) fluids at 7 days after the OVA inhalation. SST also reduced the airway hyperreactivity at 6 days after the OVA inhalation. Proteomic analysis with the agarose two-dimensional electrophoresis showed that the expression of spectrin α2 was reduced in the lung tissue of OVA-sensitized mice and SST recovered the expression. Western blot and immunohistochemical analyses of lung tissue also confirmed this result. When prednisolone was orally administered at 3 mg kg(-1) day(-1) from day 1 to 6 after OVA inhalation, the inflammation in lung tissue, the number of eosinophils in BAL fluids and airway hyperreactivity were reduced in the OVA-sensitized mice. However, prednisolone did not reduce the OVA-specific IgE antibody titer in BAL fluids and did not recover the expression of spectrin α2 in lung tissue. These results suggest that at least a part of action mechanism of SST against OVA-sensitized allergic airway inflammation in a mouse model is different from that of prednisolone.
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