补阳还五汤对肺纤维化大鼠血清Ⅲ型前胶原氨端肽和Ⅳ型胶原氨端肽含量的影响

Effects of Buyang Huanwu Decoction on Contents of PCⅢ and Ⅳ-C in Blood Serum of Pulmonary Fibrosis Rats

目的探讨补阳还五汤对肺纤维化大鼠的干预作用。方法将144只健康雄性SD大鼠采用随机数字表法分为假手术组、模型组、强的松组和补阳还五汤高、中、低剂量组,每组24只。除假手术组外,其余各组采用一次性气管滴注博莱霉素复制肺纤维化大鼠模型,假手术组气管内滴注等量生理盐水,造模第2日起,各给药组给予相应药物灌胃,于造模后第7、14、28日分3批处死动物,每次8只。分离血清,采用放免法检测各组大鼠血清Ⅲ型前胶原氨端肽(PCⅢ)、Ⅳ型胶原氨端肽(Ⅳ-C)的含量。结果与假手术组比较,各组大鼠血清PCⅢ、Ⅳ-C的含量逐渐升高,模型组最为明显(P<0.01);与模型组比较,各给药组大鼠血清PCⅢ、Ⅳ-C含量均降低(P<0.01);与强的松组比较,补阳还五汤中剂量组第14、28日及补阳还五汤低剂量组第28日时,PCⅢ、Ⅳ-C含量明显降低(P<0.05)。结论补阳还五汤可以有效抑制肺组织中胶原纤维的增殖及细胞外基质的沉积,达到抗肺纤维化的作用。

Objective To discuss intervention effects of Buyang Huanwu decoction on pulmonary fibrosis （PF） rats. Methods Totally 144 healthy male SD rats were randomly divided into six groups：sham-operation group, model group, prednisone group, Buyang Huanwu decoction high-, medium-, low-dose groups, 24 rats in each group. Except for sham-operation group, the rest groups were given injection of BLM via tracheal intubation for the establishment of PF model, while sham-operation group was instilled the same amount of NS. From the second day, all the rats received a gavage by related medicine. Eight rats in each group were killed respectively on day 7, 14 and 28 after intratracheal instillation. The contents of PCⅢ and Ⅳ-C in blood serum of experimental rats were tested by radioimmanoassay method. Results Compared with the sham-operation group, the contents of PCⅢ and Ⅳ-C in blood serum of other groups increased gradually, and that of the model group was the most obvious （P〈0.01）. Compared with the model group, each medicine group had different decreases in the contents of PCⅢ and Ⅳ-C in blood serum （P〈0.01）. Compared with the prednisone group, the contents of PCⅢ and Ⅳ-C in blood serum of Buyang Huanwu decoction medium-dose group obviously decreased on the 14th and 28th day （P〈0.05）, as well as that of Buyang Huanwu decoction low-dose group on the 28th day （P〈0.05）. Conclusion Buyang Huanwu decoction could effectively reduce proliferation of collagen fibers and excess deposition of ECM in lung tissue of PF, and played an anti-fibrosis effect on lungs.