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中国临床药理学与治疗学 ›› 2015, Vol. 20 ›› Issue (5): 499-504.

• 基础研究 • 上一篇    下一篇

丹皮酚干预慢性阻塞性肺疾病大鼠气道重构作用的实验研究

颜贵明, 汪长中, 张传英, 李月月, 周雪春   

  1. 安徽中医药大学中西医结合临床学院,合肥 230012,安徽
  • 收稿日期:2015-01-19 修回日期:2015-03-19 发布日期:2015-06-11
  • 作者简介:颜贵明,男,硕士,副教授,硕士生导师,研究方向:丹皮酚抗支气管哮喘作用及机制研究。Tel: 15855195579 E-mail: 922-119@163.com
  • 基金资助:
    安徽高校省级自然科学研究重点项目(KJ2012A180)

Experimental study on interventional effect of paeonol on airway remodeling in COPD rats

YAN Gui-ming, WANG Chang-zhong, ZHANG Chuan-ying, LI Yue-yue, ZHOU Xue-chun   

  1. Clinical College of Integrated Traditional and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, Anhui, China
  • Received:2015-01-19 Revised:2015-03-19 Published:2015-06-11

摘要: 目的: 探讨丹皮酚(Pae)干预慢性阻塞性肺疾病(COPD)大鼠气道重构的作用。方法: 采用内毒素气管内直接刺激的方法复制COPD气道重构模型,并以丹皮酚(75、150、300 mg/kg)灌胃治疗8周,另设假手术组、模型组、强的松对照组。以硫代巴比妥法测定丙二醛(MDA),比色法测定谷胱甘肽(GSH),分光光度法检测超氧化物歧化酶(SOD),放射免疫分析法检测血清中纤黏连蛋白(FN)、层黏连蛋白(LN)、IV型胶原(IV-C),氯胺T法检测肺组织中羟脯氨酸(Hyp)的含量。ELISA法检测血清、肺组织中TNF-α、IL-8、IL-6含量。免疫组化图片利用真彩色医学图像分析软件测量气管上皮下胶原面积。结果: 丹皮酚可降低模型动物血清和肺脏中的MDA、IL-8、TNF-α、LN、IV-C、Hyp的含量,升高GSH、SOD含量,抑制中小径支气管上皮下增生。结论: 丹皮酚通过抗炎、抗氧化、抑制中小径气道上皮下增生实现干预慢性阻塞性肺疾病大鼠气道重构。

关键词: 丹皮酚, 干预, 气道重构

Abstract: AIM: To investigate the mechanism of paeonol on airway remodeling in COPD rats.METHODS: The model of airway remodeling in COPD was replicated by stimulating the trachea directly with endotoxin. Then the rats were treated with paeonol (75, 150, 300 mg/kg) by gavage for 8 weeks. The sham-operated rats were taken as the control group, and prednisone was chosen as the positive control medicine. Content of malondialdehyde (MDA) was determined by thiobarbituric acid (TBA) method, colorimetric method for the determination of glutathione (GSH), spectrophotometric method for the superoxide dismutase (SOD), radioimmunoassay method for the fibronectin (FN), laminin (LN), IV collagen in serum, and chloramine-T method for the content of hydroxyproline (Hyp) in pulmonary tissue, respectively. The levels of TNF-α, IL-8 and IL-6 in serum and pulmonary tissue homogenate were detected by ELISA method. The area of subcutaneous collagen in trachea was measured by immunohistochemical picture treated with the analysis software of true color medical images.RESULTS: Not only can paeonol obviously decrease the levels of MDA, IL-8, TNF-α, LN, IV-C, Hyp and increase the levels of GSH, SOD in serum and pulmonary tissue of the model animals, but also can inhibit the subcutaneous hyperplasia in the medium bronchial.CONCLUSION: Paeonol could intervene in airway remodeling in COPD by anti-inflammatory, antioxidant and suppressing the subcutaneous hyperplasia in the medium bronchial.

Key words: paeonol, intervention, airway remodeling

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