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;  ,
鼠
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
中图分类号:
王 鹏1,臧晓燕1,张引成2. 大鼠面神经损伤后神经元型一氧化氮合酶的表达变化[J]. 《口腔颌面外科杂志》, 2014, 24(4): 272-.
WANG Peng1, ZANG Xiao-yan1, ZHANG Yin-cheng2. Expression of Neuronal Nitric Oxide Synthase in the Facial Nucleus after Facial Nerve Injury[J]. 《Journal of Oral and Maxillofacial Surgery》, 2014, 24(4): 272-.