苦丹颗粒对平阳霉素所致肺纤维化大鼠防治作用的实验研究

目的:探讨苦丹颗粒对平阳霉素所致肺纤维化大鼠的防治作用。方法:在无菌条件下,将大鼠用3.5%水合氯醛麻醉,在气管分叉处上方进针,推注5mg·kg^-1的平阳霉素生理盐水溶液,观察苦丹颗粒大、小剂量对平阳霉素所致肺纤维化大鼠的防治作用。结果:模型组大鼠在造模后第7,14,28,56天,肺泡腔和肺间质可见大量炎性细胞浸润,肺泡壁明显增厚、基质明显增多,肺间隔明显增宽,肺泡壁塌陷,肺泡腔消失;Masson染色,肺间质可见大量胶原纤维,肺实变形成。苦丹大剂量组与模型组相比,肺泡腔和肺间质仍可见较多炎性细胞浸润,肺间质水肿和点状坏死,肺泡壁增厚,肺间隔增宽,肺间质胶原纤维增多,但未见大片肺实变。苦丹小剂量组疗效不如苦丹大剂量组,但明显优于模型组,在肺间质仍可见大片肺实变形成,受累范围大于50%。结论:苦丹颗粒大剂量对平阳霉素所致肺纤维化大鼠具有一定的预防治疗作用。

An experiment study of protection and treatment of Kudan granule on rats of pulmonary fibrosis induced by pinyangmycin

Objective: To explore the protection and treatment effects of Kudan granule on rats of pulmonary fibrosis induced by pinyangmycin. Method: In asepsis condition, rat was anaethetized by 3.5% chloral hydrate,inserted the needle above the bifurcation of trachea and injecting 5 mg·kg^-1 pinyangmycin normal saline solution. Result: For model-group rats, after injecting pinyangmycin at 7, 14, 28, 56 days, there were mass inflammation cell infiltration at pulmonary alveoli and interstitial, the pulmonary alveolar wall and interstitial thickened obviously, and the pulmonary interval broadened distinctly. The structure of collagen fiber was destroyed, and the pulmonary alveoli disappeared. By Masson dyeing, there were hunk collagen fiber and the consolidation of lung had come into being. Compared with the model group, the rats of Kudan granule big-dose group, at 7, 14, 28, 56 days after injecting pinyangmycin, there were still much inflammation cell infiltration at pulmonary alveoli and interstitial, pulmonary interstitial edema and spotty necrosis, thickened alveolar wall, broadened pulmonary interval, and much collagen fiber in pulmonary interstitial,but there was not bunk the consolidation of lung. The curative effect of Kudan granule small-dos group was not better than that of Kudan granule big-dos group, because there were still bunk collagen fiber and the consolidation of lung in pulmonary interstitial. Although the destroyed area was more than 50% , it was better than that of the model-group. Conclusion:The big-dose Kudan granule show the better function of protection and treatment for pulmonary fibrosis of rats induced by pinyangmycin.