【摘要】 目的研究川芎嗪注射液对博莱霉素A5致肺纤维化大鼠Ⅲ型胶原(Col-Ⅲ)及层黏连蛋白(LN)的干预作用。方法Wistar大鼠70只随机分为空白组、模型组、川芎嗪大剂量组(大剂量组)、川芎嗪中剂量组(中剂量组)、川芎嗪小剂量组(小剂量组)。除空白组外其他4组气管内注入博莱霉素A5造模,造模d2大、中、小剂量组每日开始腹腔注射川芎嗪注射液至28 d,剂量分别为250、150、40 mg/(kg.d)。检测d14、28时大鼠血清Col-Ⅲ、LN及d28时肺组织匀浆中以上指标,同时取肺组织行苏木精-伊红(HE)染色。结果肺纤维化大鼠d14、28时血清及肺组织匀浆Col-Ⅲ及LN水平明显升高,与空白组比较有显著差异(Pa<0.01);川芎嗪大、中剂量组能降低肺纤维化大鼠血清及肺组织匀浆中Col-Ⅲ及LN水平(P<0.01,0.05)。其中以川芎嗪大剂量组效果较为明显,川芎嗪小剂量组疗效较差。结论降低肺纤维化大鼠Col-Ⅲ及LN的水平,可能是川芎嗪注射液发挥治疗作用的机制之一。更多还原

【Abstract】 Objective To study the role of ligustrazine injection on collagen-Ⅲ(Col-Ⅲ) and laminin(LN) in pulmonary fibrosis rats induced by bleomycin A5.Methods Seventy Wistar rats were divided into 5 groups at random:normal group,model group,large-dose group,middle-dose group,little-dose group.The other groups were injected bleomycin A5 in intratrache except for normal group.From the second day,large-dose group,middle-dose group,little-dose group were given ligustrazine injection by intraperitoneal injection to 28th day,the dose was dividedly:250,150,40 mg/(kg·d).Col-Ⅲ and LN in serum were detected in 14th,28th days and the content of them in lung tissue homogenate in 28th day were also detected.HE staining was detected on lung tissue.Results The contents of Col-Ⅲ and LN of lung tissue and serum in pulmonary fibrosis rats were significantly upgraded compared with that of normal group(P<0.01);Large-dose group,middle-dose group could degrade the content of Col-Ⅲ and LN in lung tissue and serum in pulmonary fibrosis rats(P<0.01,0.05).However,the effect of large-dose group was more effective,the effect of little-dose group was not obvious.Conclusion It is one of mechanisms to ligustrazine injection′s therapeutic action to upgrade the content of Col-Ⅲ and LN in lung tissue and serum of pulmonary fibrosis rats.更多还原