姜黄素对哮喘小鼠气道炎症和气道高反应性的影响

目的 了解姜黄素对哮喘小鼠气道高反应性及气道炎症的影响.方法 对30只Balb/c小鼠随机分为正常对照组、哮喘组及姜黄素干预哮喘小鼠.应用OVA溶液建立哮喘小鼠模型;对各组小鼠进行肺功能的检测;应用Giemsa染色测定各组小鼠支气管肺泡灌洗液的炎症细胞计数;HE染色及PAS染色对各组小鼠行肺组织病理学检测;ELISA方法检测各组小鼠支气管肺泡灌洗液中的IgE含量.结果 哮喘组小鼠在吸入乙酰甲胆碱(Mch)6.25 g/L浓度后,Penh值显著高于正常对照组,两组比较差异有统计学意义(P＜0.01),而姜黄素干预哮喘组较哮喘组明显降低,两组比较差异有统计学意义(P＜0.01).哮喘组小鼠气道盥洗液白细胞总数及嗜酸细胞数显著高于正常对照组,两者比较差异统计学意义(P＜0.01),而姜黄素干预哮喘组白细胞及嗜酸细胞数量明显较哮喘组减少,两者比较有差异有统计学意义(P＜0.01).哮喘组小鼠中BALF的IgE含量较对照组明显升高,两组比较差异有统计学意义(P＜0.01);而姜黄素干预哮喘组中BALF的IgE含量较哮喘组明显降低(P＜0.01).哮喘小鼠肺组织HE染色中可见支气管和血管壁周围有大量的炎性细胞浸润,以嗜酸细胞和淋巴细胞浸润为主,姜黄素干预哮喘组较其减少.PAS染色哮喘组小鼠杯状细胞、黏液分泌明显增多,姜黄素干预哮喘组较其减少.结论 姜黄素可以减轻哮喘小鼠的气道炎症,减轻气道黏液分泌、降低气道高反应性、降低肺泡灌洗液中的IgE含量.

The effect of the asthmatic mice's airway inflammation and bronchial hyperresponsiveness treated with curcumin

Objective To investigate the effect of the asthmatic mice's airway inflammation and bronchial hyperresponsiveness treated with curcumin.Methods The mice were divided into three teams randomly,the normal mice,the asthmatic mice and the curcumin mice.The mice of three teams were detected by lung function,Giemsa dying,HE and PAS dying,and ELISA.Results After the Mch concentration of 6.25 g/L,the value of Penh in asthmatic mice was higher than the control mice,which was sighifiantly different(P ＜ 0.01).However,the value of Penh in curcumin team was lower than asthmatic mice,which was sighifiantly different (P ＜0.01).The number of total white blood cells and eosinophils was higher in asthmatic mice than the contol,which was sighifiantly different(P ＜0.01).However,the number in curcumin team was lowered than asthmatic team(P ＜ 0.01).The IgE content of BALF in asthmatic mice was higher than the control,which was significantly different(P ＜ 0.01).However,the content in curcumin team was lowered than the asthmatic mice,which had a significant difference(P ＜0.01).Pathology of HE staining in asthmatic mice showed the thickening bronchial wall,narrow lumen,peribronchial and perivascular infiltration with a large number of eosinophil-based inflammatory cells,lumen with many inflammatory secretions.However,the curcumin team was alleviated than the asthmatic mice.There were more goblet cells and more mucus secretion in the asthmatic mice by PAS staining.However,the curcumin team was alleviated than the asthmatic mice.Conclusion Curcumin can alleviate the airway inflammation,mucus secretion,airway hyperresponsiveness and the IgE content of bronchoalveolar lavege fluid.