Effects of <i>Baicalin</i>and <i>Ligustrazine</i>on airway inflammation and remodeling and underlying mechanism in asthmatic rats

作     者：Shi-man Wu Hai-Yan Wu Yong-jie Wu Li Liu Ren-ping Cai Yong-jian Xu 

作者机构：Respiratory Department The First Hospital of Shanxi Medical University Taiyuan China Respiratory department Tongji hospital Tongji medical college Huazhong University of science and technology Wuhan Hubei province China Respiratory departmentthe first hospital of Shanxi medical university Taiyuan Shanxi province China 

出 版 物：《Advances in Bioscience and Biotechnology》 (生命科学与技术进展（英文）)

年 卷 期：2012年第3卷第5期

页      面：585-591页

学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学] 

主　　题：Asthma Airway Remodeling Airway Inflammation Baicalin Ligustrazine 

摘      要：Aim: To explore the effects of Baicalin and Ligustrazine on airway inflammation and construction and underlying mechanisms through the expressions of GATA-3, IL-5, MMP-9 and TIMP-1 in asthmatic rats. Methods: 30 Wistar rats were randomly divided equally into five groups. Lung tissues were sliced. WBC and Eos in lung tissue were estimated by HE stain and the expressions of IL-5, GATA-3, MMP-9, TIMP-1 and collagen type IV in lung tissue were observed by immunohistochemistry. The airway wall and airway smooth muscle thicknesses were measured by computed image analysis system. Results: Compared with asthma group, EOS counts and the expression of IL-5 and GATA-3 in the lung tissue were significantly lower in normal controlled groups (P Baicalin or Ligustrazine, EOS decreased, and the thicknesses of airway wall and airway smooth muscle became thinner compared with asthma group. Meanwhile, the expression of collagen type IV, IL-5, GATA-3, MMP-9 and TIMP-1 significantly decreased (P 0.05). Airway wall thickness and collagen type Ⅳ were associated with Eos, IL-5, TAGA-3, MMP-9, TIMP-1 and MMP-9/ TIMP-1. Conclusion: Two herbs could diminish infiltration of EOS with inhibiting the expressions of IL-5, and GATA-3, meanwhile, decrease the deposition of collagen type IV and the thickness of the airway smooth muscle through regulating MMP-9, TIMP-1 level and the balance between MMP-9 and TIMP-1, additionally, had synergetic effects.