《口腔颌面外科杂志》 ›› 2014, Vol. 24 ›› Issue (4): 272-. doi: 10.3969/j.issn.1005-4979.2014.04.005

• 基础研究 • 上一篇    下一篇

大鼠面神经损伤后神经元型一氧化氮合酶的表达变化

王   鹏1,臧晓燕1,张引成2   

  1. 1. 同济大学口腔医学院口腔生物医学及转化医学实验室,上海   200072;2. 西安交通大学口腔医学院口腔颌面外科教研室,陕西   西安   710004
  • 出版日期:2014-08-28 发布日期:2021-11-04
  • 通讯作者: 张引成,教授. E-mail:xjtuzyc@mail.xjtu.edu.cn
  • 作者简介:王鹏(1971—),男,河北人,讲师,博士.E-mail:wang_peng@tongji.edu.cn

Expression of Neuronal Nitric Oxide Synthase in the Facial Nucleus after Facial Nerve Injury

WANG Peng1, ZANG Xiao-yan1, ZHANG Yin-cheng2   

  1. 1. Laboratory of Oral Biomedical Science and Translational Medicine, School of Stomatology, Tongji University, Shanghai 200072; 2. Department of Oral and Maxillofacial Surgery, School of Stomatology, Xi’an Jiaotong University, Xi’an 710004, Shaanxi Province, China
  • Online:2014-08-28 Published:2021-11-04

摘要: 目的:通过观察面神经损伤后神经元型一氧化氮合酶(neuronal NOS, nNOS)在面神经核团中的表达,探讨NO在面神经损伤后的作用。方法:健康成年SD大白鼠20只,其中5只作为正常对照。其余15只为面神经损伤组,在双侧面神经下颊支制作挤压伤。术后1、2、3、4、5周各取3只损伤组大鼠作面神经核团nNOS表达的免疫组化观察。结果:正常情况下面神经元不表达nNOS。面神经损伤后,出现运动神经元变性,其神经元细胞nNOS免疫染色为阳性,并持续至损伤后第5周。结论:面神经损伤后其运动神经元的核团中会出现nNOS的表达。

关键词: 面神经;  , 神经再生;  , 神经元型一氧化氮合酶;  ,

Abstract: Objective:  To observe  the variation of neuronal nitric oxide synthase (nNOS) expression in injured facial nerve tissue. Method: 20 adult male SD rats were used in this study, among them , 5 rats were normal controls. In experiment group, a compression injury was applied at one branch of bilateral facial nerve. Every 3 rats in experiment group were sacrified for nNOS immunostaining in a period of 1, 2, 3, 4 and 5 weeks respectively. Results: In normal facial nerve tissue, nNOS expression was not detected. In the injured facial nerve neurons, nNOS immunostaining expression was positive, and lasting up till the fifth weeks. Conclusion: After the nerve injury, the expressing of nNOS was observed in the facial nucleus, which may be related to the death of neuron.

Key words: facial never; , nerve regeneration; , neuronal nitric oxide synthase; , rats

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