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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (4): 397-400.

• 研究原著 • 上一篇    下一篇

地塞米松对肺纤维化大鼠肺组织超微结构的影响

叶进燕, 谢于鹏, 毛孙忠, 方周溪, 陈少贤   

  1. 温州医学院附属第一医院呼吸科, 温州 325000, 浙江
  • 收稿日期:2004-11-19 修回日期:2005-02-16 出版日期:2005-04-26 发布日期:2020-11-19
  • 通讯作者: 叶进燕,女, 硕士, 主治医师, 研究方向:肺纤维化, 呼吸衰竭。Tel:0577-88069220 E-mail:jinyanye@yahoo.com.cn

Effects of dexameathone on pulmonary fibrosis induced by bleomycin and oxygen-derived free radicals in rats

YE Jin-yan, XIE Yu-peng, MAO Sun-zhong, FANG Zhou-xi, CHEN Shao-xian   

  1. Department of Respiratory, the First Affiliated Hospital, Wenzhou Medical College, Wenzhou 325000, Zhejiang, China
  • Received:2004-11-19 Revised:2005-02-16 Online:2005-04-26 Published:2020-11-19

摘要: 目的: 探讨地塞米松对肺纤维化大鼠肺组织氧自由基和超微结构的影响。方法: SD 大鼠经气管内灌注博莱霉素诱导肺纤维化, 随后每日注射地塞米松 3.33 mg°kg-1 干预。于注药后 d 29 处死。通过HE 染色和透射电镜观察显微结构的变化, 并通过测定肺 组织超氧化 物歧化酶 (SOD) 、丙二 醛(MDA) 来评价干预效果。结果: 地塞米松组与博莱霉素组相比, 肺组织 SOD 下降,MDA 升高, 肺纤维化程度减轻。结论: 地塞米松能减轻大鼠肺纤维化, 部分机制与抗氧化有关。

关键词: 地塞米松, 肺纤维化, 博莱霉素, 氧自由基, 超微结构

Abstract: AIM: To study the ultrastructure of dex-amethaone on the bleomycin induced pulmonary fibrosis.METHODS: Thirty Sprague-Dawley (SD) rats were ran-domly divided into three groups (n =10 in each):control group, bleomycin (BLM) group and dexamethasone (DXM) group.After 28 days, the MDA and SODof lung were measured and the histology was detected.RESULTS: In DXM group, the concentration of SOD was lower than that in the BLM group (P<0.01), and the degree of fibrosis was more mitigative than that in the BLM group by microscope and ultrastructure. CONCLUSION: Dexamethasone can reduce the damage of oxygen-derived free radicals of bleomycin.Treatment of dexam-ethasone may be useful in inhibiting pulmonary fibrosis.

Key words: dexamethasone, pulmonary fibrosis, oxygen-derived free radicals, ultrastructure

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