基础医学与临床 ›› 2008, Vol. 28 ›› Issue (6): 618-622.

• 技术与方法 • 上一篇    下一篇

小鼠听觉剥夺动物模型的建立

田永胜 张萌 陈晓巍 艾星   

  1. 北京协和医院耳鼻喉科 北京协和医院耳鼻咽喉科 北京协和医院耳鼻喉科 北京协和医院耳鼻喉科
  • 收稿日期:2007-07-19 修回日期:2008-02-25 出版日期:2008-06-25 发布日期:2008-06-25
  • 通讯作者: 陈晓巍

Establishment of an auditory deprived mouse model

Yong-sheng TIAN, Meng ZHANG, Xiao-wei CHEN, Xing AI   

  1. Dept.of Otolaryngology,PUMC Hospital,CAMS & PUMC
  • Received:2007-07-19 Revised:2008-02-25 Online:2008-06-25 Published:2008-06-25
  • Contact: Xiao-wei CHEN,

摘要: 目的 探索一种建立稳定的小鼠听觉剥夺动物模型的方法。方法 选取出生2个月、听觉脑干诱发电位(ABR)正常的BALB/c小鼠40只,随机分为两组各20只。实验组采用耳后径路开放听泡,用微型钻在耳蜗表面钻孔损毁双侧耳蜗结构;对照组仅做耳后切口不破坏耳蜗结构。术后动物饲养4个月,通过比较手术前后ABR测试结果,进行客观听力学评估。 结果 实验组小鼠术后耳廓反射消失,ABR测试未检测出反应波形。对照组听力正常。结论 耳后径路切除小鼠耳蜗,能够建立稳定可靠的听觉剥夺动物模型,对于听觉中枢可塑性的研究很有价值。

Abstract: Objective To explore a method for establishing a stable auditory deprived animal model of mouse. Methods Forty two-month old BALB/c mice with normal auditory brainstem response (ABR) thresholds were divided into two groups randomly. The experimental group mice were underwent an incision inferior to the pinna, and the cochleas were destoried with a drill through the bulla bilaterally. The control group mice were underwent only an incision without cochlea ablation. Mice were tested for ABR thresholds 4 month later to assess hearing sensitivity by comparing the ABR before and after operation. Results In the experimental group, mice's auricle reflection disappeared after operation and ABR waves couldn't be detect. In the control group, the tests of mice's hearing were normal. Conclusions Mouse cochlea ablation is a reliable method for establishing a stable auditory deprived animal model of mouse by the pinna inferior approach. It can be used to research auditory centre plasticity induced by auditory deprived.