丹参注射液对哮喘大鼠肺IL-13和嗜酸性粒细胞趋化因子表达的影响

目的:探讨丹参注射液抑制哮喘气道变应性炎症作用的分子机制。方法:30只SD大鼠随机分成正常对照组、哮喘组和丹参治疗组。HE染色行肺组织病理学检查,计数支气管肺泡灌洗液(BALF)中细胞总数并分类,SP法和RT-PCR测定肺组织中IL-13和嗜酸性粒细胞趋化因子(Eotaxin)表达。结果:丹参组肺组织炎性细胞浸润明显减少,BALF细胞总数及淋巴细胞、中性粒细胞和嗜酸性粒细胞(Eos)百分率较哮喘组明显减少(P<0.05,P<0.01)。哮喘组肺组织IL-13和Eotaxin表达较正常对照组明显增加(P<0.05),丹参组IL-13和Eotaxin表达较哮喘组明显减少(P<0.05)。IL-13和Eotaxin表达呈正相关(r=0.90,P<0.01)。结论:丹参注射液可减轻哮喘大鼠气道炎症反应,其机制可能与降低哮喘大鼠肺内IL-13和Eotaxin表达有关。

Effect of Danshen Injection on Interleukin-13 and Eotaxin Expression in Lung of Asthmatic Rats

Objective To investigate the molecular mechanism of inhibitory effect of Danshen injection on allergic airway inflammation of asthma.Methods Thirty SD rats were randomly divided into control group,asthma group and Danshen injection group.Bronchoalveolar lavage fluid (BALF) was collected,and cytology analysis was performed.The lung tissue was harvested and stained with HE.Interleukin-13 (IL-13) and Eotaxin in lung tissue were measured by RT-PCR and SP method of immunohistochemistry assay. Results Compared wi...