首页> 外文期刊>Journal of child neurology >Regulation of brain-derived neurotrophic factor (BDNF) expression following antibiotic treatment of experimental bacterial meningitis.
【24h】

Regulation of brain-derived neurotrophic factor (BDNF) expression following antibiotic treatment of experimental bacterial meningitis.

机译:抗生素治疗实验性细菌性脑膜炎后,调节脑源性神经营养因子(BDNF)的表达。

获取原文
获取原文并翻译 | 示例
           

摘要

Although more and more new potent antibiotics have been used, mortality and neurologic deficits still occur frequently following bacterial meningitis in children. In this article, the expression of brain-derived neurotrophic factor messenger ribonucleic acid (RNA) and its production in the brains of rats were investigated during the course of experimental bacterial meningitis and after treatment with an antibiotic plus dexamethasone. In the brains of Streptococcus pneumoniae-inoculated rats, brain-derived neurotrophic factor (BDNF) messenger RNA was obviously up-regulated after inoculation for 24 hours (P < .01) and then declined but was still greater than that in the brains of control rats after inoculation for 5 days (P < .05). The expression of brain-derived neurotrophic factor in the brains of infected rats treated by antibiotic was dose dependent, down-regulated, and almost undetectable (P < .01) but up-regulated after treatment with an antibiotic plus dexamethasone (P < .01). However, the expression of brain-derived neurotrophic factor messenger RNA did not change in control rats treated with an antibiotic. Brain-derived neurotrophic factor protein showed similar changes, except it declined to normal levels 5 days after inoculation. Brain-derived neurotrophic factor messenger RNA and its production were observed in some infiltrating inflammatory cells in the brain of infected rats. The results of our studies support the hypothesis that brain-derived neurotrophic factor might play a neuroprotective role in brain damage during bacterial meningitis, and the expression of brain-derived neurotrophic factor messenger RNA and its production might be inhibited after treatment with antibiotics. The findings suggest that both eradicating the bacterial pathogen with antibiotics and adjuvant administering of brain-derived neurotrophic factor might be more beneficial to prevent brain damage.
机译:尽管使用了越来越多的新型有效抗生素,但儿童细菌性脑膜炎后死亡率和神经功能缺损仍然经常发生。本文研究了实验性细菌性脑膜炎过程中以及抗生素加地塞米松治疗后大鼠脑源性神经营养因子信使核糖核酸(RNA)的表达及其在脑中的产生。在接种肺炎链球菌的大鼠的大脑中,接种24小时后脑源性神经营养因子(BDNF)信使RNA明显上调(P <.01),然后下降,但仍大于对照脑中的接种5天后的大鼠(P <.05)。抗生素治疗的感染大鼠大脑中脑源性神经营养因子的表达呈剂量依赖性,下调且几乎不可检测(P <.01),但在抗生素加地塞米松治疗后上调(P <.01 )。但是,在用抗生素治疗的对照大鼠中,脑源性神经营养因子信使RNA的表达没有改变。脑源性神经营养因子蛋白显示相似的变化,只是在接种后5天下降到正常水平。在感染大鼠大脑的某些浸润性炎症细胞中观察到了脑源性神经营养因子信使RNA及其产生。我们的研究结果支持以下假设:脑源性神经营养因子可能在细菌性脑膜炎期间对脑损伤起到神经保护作用,而抗生素治疗后脑源性神经营养因子信使RNA的表达及其产生可能受到抑制。这些发现表明,用抗生素根除细菌病原体和辅助施用脑源性神经营养因子可能更有益于预防脑损伤。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号