经鼓膜注入脂多糖诱导的大鼠分泌性中耳炎模型

doi:10.3969/j.issn.1674-5817.2011.06.002

实验动物与比较医学 ›› 2011, Vol. 31 ›› Issue (6): 410-413.DOI: 10.3969/j.issn.1674-5817.2011.06.002

经鼓膜注入脂多糖诱导的大鼠分泌性中耳炎模型

李祥翠, 张奕, 李吉平, 王家东

上海交通大学医学院附属仁济医院耳鼻咽喉-头颈外科、耳鼻咽喉科研究所, 上海 200127

收稿日期:2011-02-15 出版日期:2011-12-25 发布日期:2011-12-25
作者简介:李祥翠(1984-),女,硕士研究生,E-mail:lxcccfy@163.com
基金资助:
上海市卫生局科研课题计划资助,编号:2007Y02上海交通大学“医工(理)交叉研究基金”项目,项目批号:YG2010MS28

Establishment of Otitis Media with Effusion Induced by Lipopolysaccharides in Rat

LI Xiang-cui, ZHANG Yi, LI Ji-ping, WANG Jia-dong

Department of Otolaryngology-Head and Neck Surgery,Renji Hospital,Institute of Otolaryngology, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China

Received:2011-02-15 Online:2011-12-25 Published:2011-12-25

摘要/Abstract

摘要： 目的建立简便有效的分泌性中耳炎(otitis media with effusion, OME)动物模型。方法经大鼠鼓膜注入脂多糖(lipopolysaccharide, LPS)后的第1、3、7日,分别采集中耳腔黏膜,用HE染色、光镜下观察中耳黏膜的病理变化及扫描电镜观察咽鼓管鼓口处中耳黏膜黏液纤毛运输系统的超微结构改变,以评估LPS诱导的大鼠OME组织病理的动态变化。结果在造模后第1日,试验耳均可见积液,积液在第7日基本消退; 光镜下可见中耳黏膜在造模后第1日达到炎症的高峰期,第7日基本恢复正常; 电镜下可见咽鼓管鼓口处听泡黏膜黏液造模第1日倒伏、脱落最重,第7日时基本恢复正常。结论鼓室内注入LPS可致中耳黏膜的炎症反应及中耳腔渗出,可为研究OME的诊断和治疗提供更简易的动物模型。

关键词: 中耳炎, 分泌性, 模型, 动物, 脂多糖

Abstract: Objective To establishing the rat model of otitis media with effusion (OME). Methods The rats were inoculated with lipopolysaccharides (LPS) into the middle ear cavity through tympanic membrane. The pathologic changes of middle ear cavity and mucocilliary transporting system on the tympanic ostium eustachian tube were observed by light microscope and scan electrical microscope on days 1, 3, 7 after injecting LPS, respectively. Results Effusion were observed on day 1 after injecting LPS through tympanic membrane and disappeared after 7 days through otoscope.The pathologic changes were observed most severe on day 1 and returned to normal at 7 days under light microscope, and the impairment of mucociliary transport system such as lodging, shedding of cilias were observed on day 1 after injecting LPS and returned to normal after 7 days with scan electrical microscope. Conclusions Lipopolysaccharides (LPS) inoculated into the middle ear cavity through tympanic membrane can induce the inflammatory response and effusion of the middle ear, which can effectively establish the rat model of otitis media with effusion.

Key words: Otitis media with effusion, Models, Rat, Lipopolysaccharide

中图分类号:

Q95-33

李祥翠, 张奕, 李吉平, 王家东. 经鼓膜注入脂多糖诱导的大鼠分泌性中耳炎模型[J]. 实验动物与比较医学, 2011, 31(6): 410-413.

LI Xiang-cui, ZHANG Yi, LI Ji-ping, WANG Jia-dong. Establishment of Otitis Media with Effusion Induced by Lipopolysaccharides in Rat[J]. Laboratory Animal and Comparative Medicine, 2011, 31(6): 410-413.

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经鼓膜注入脂多糖诱导的大鼠分泌性中耳炎模型

Establishment of Otitis Media with Effusion Induced by Lipopolysaccharides in Rat

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