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中华神经创伤外科电子杂志 ›› 2016, Vol. 02 ›› Issue (05) : 289 -292. doi: 10.3877/cma.j.issn.2095-9141.2016.05.007

所属专题: 文献

基础研究

高压氧对脑外伤大鼠脑内兴奋性氨基酸水平的影响
贺仕清1, 邹云龙1,(), 雷北平2   
  1. 1. 421002 衡阳,南华大学附属南华医院神经外科
    2. 421002 衡阳,中国人民解放军第一六九总医院高压氧科
  • 收稿日期:2016-04-30 出版日期:2016-10-15
  • 通信作者: 邹云龙
  • 基金资助:
    湖南省卫生厅一般项目(B2010-056)

Effects of hyperbaric oxygen on the level of excitatory amino acids in the brain of rats with brain injury

Shiqing He1, Yunlong Zou1,(), Beiping Lei2   

  1. 1. Department of Neurosurgery, Affiliated Nanhua Hospital of South China, Hengyang 421002, China
    2. Department of Neurosurgery, 169 General Hospital of Chinese PLA, Hengyang 421002, China
  • Received:2016-04-30 Published:2016-10-15
  • Corresponding author: Yunlong Zou
  • About author:
    Corresponding author: Zou Yunlong, Email:
引用本文:

贺仕清, 邹云龙, 雷北平. 高压氧对脑外伤大鼠脑内兴奋性氨基酸水平的影响[J/OL]. 中华神经创伤外科电子杂志, 2016, 02(05): 289-292.

Shiqing He, Yunlong Zou, Beiping Lei. Effects of hyperbaric oxygen on the level of excitatory amino acids in the brain of rats with brain injury[J/OL]. Chinese Journal of Neurotraumatic Surgery(Electronic Edition), 2016, 02(05): 289-292.

目的

研究高压氧对脑外伤大鼠脑内兴奋性氨基酸水平的影响。

方法

通过制作大鼠脑外伤模型,设计随机实验分组:模型对照组、高气压组、高浓度氧组和高压氧组给予脑外伤大鼠治疗;同时设空白对照组。分别于第3天、第6天、第9天取大鼠全脑测量谷氨酸(Glu)和天冬氨酸(Asp)的含量。

结果

大鼠脑损伤后脑组织中Glu、Asp含量明显升高,高压氧可明显下调Glu、Asp含量,与模型对照组比较差异具有统计学意义(P<0.05),而高气压组、高浓度氧组不能明显抑制Glu、Asp表达,与模型对照组比较差异无统计学意义(P>0.05)。

结论

高压氧可以显著抑制脑外伤大鼠脑组织中兴奋性氨基酸释放从而减轻脑外伤后继发性脑损害,而高气压、高浓度氧不能明显抑制兴奋性氨基酸的释放。

Objective

To study the effect of hyperbaric oxygen on the level of excitatory amino acids in the brain of rats with brain injury.

Methods

By making the models of traumatic brain injury in rats and design randomized experimental group: model control group, high pressure group, high concentration oxygen group and hyperbaric oxygen group were treated with brain injury rats. The contents of glutamic acid (Glu) and aspartate (Asp) were measured in rats at third days, sixth days and ninth days respectively. The contents of glutamic acid (Glu) and aspartate (Asp) were measured in rats at third days, sixth days and ninth days respectively.

Results

The content of Glu and ASP in the brain tissue of rats with brain injury increased significantly and hyperbaric oxygen can be significantly reduced content of Glu and ASP. Compared with model control group, there were significant differences (P<0.05). The high pressure group and high concentration oxygen group could not significantly inhibit the expression of Glu and Asp. Compared with the model group had no significant difference (P>0.05).

Conclusion

Hyperbaric oxygen can significantly inhibit the release of excitatory amino acids in brain tissue of rats with traumatic brain injury and reduce the secondary brain damage after traumatic brain injury, while high pressure, high concentration of oxygen can not significantly inhibit the release of EAA.

表1 五组SD大鼠平均体重比较(±s
表2 脑外伤SD大鼠第3天脑内谷氨酸和天冬氨酸的含量(μmol/L,±s
表3 脑外伤SD大鼠第6天脑内谷氨酸和天冬氨酸的含量(μmol/L,±s
表4 脑外伤SD大鼠第9天脑内谷氨酸和天冬氨酸的含量(μmol/L,±s
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