基础医学与临床 ›› 2017, Vol. 37 ›› Issue (5): 658-662.

• 研究论文 • 上一篇    下一篇

头孢曲松钠抗颞叶癫痫的效果

李晶1,许琪2   

  1. 1. 中国医学科学院 北京协和医学院
    2. 北京协和医学院基础学院
  • 收稿日期:2016-12-23 修回日期:2017-02-27 出版日期:2017-05-05 发布日期:2017-04-19
  • 通讯作者: 许琪 E-mail:xuqi@pumc.edu.cn
  • 基金资助:
    国家自然科学基金;国家自然科学基金;国家自然科学基金;国家自然科学基金

Anticonvulsant effect of ceftriaxone in temporal lobe epilepsy

jing li1,   

  • Received:2016-12-23 Revised:2017-02-27 Online:2017-05-05 Published:2017-04-19

摘要: 目的 研究头孢曲松钠(Cef)对颞叶癫痫模型小鼠的抗癫痫效果以及对谷氨酸转运蛋白(GLT-1)表达情况的作用。方法 首先构建颞叶癫痫小鼠模型,利用同步视频脑电监测(vEEG)技术,24h不间断记录小鼠癫痫发作情况。实验组腹腔注射Cef 200 mg/(kg?d),对照组腹腔注射0.9%氯化钠溶液,从癫痫发作频率、间期棘波及海马硬化等方面评价Cef对癫痫发作的控制情况,并用Western blot技术检测其对谷氨酸转运蛋白GLT-1 表达情况的影响。结果 单侧海马注射200 ng海人酸(KA)可模拟内侧颞叶癫痫患者反复自发性癫痫发作和海马硬化等两个疾病症状,成功构建内侧颞叶癫痫模型。 Cef处理使癫痫发作次数从2.145次/天降低到1.597次/天,平均发作次数降低了31.2%(p<0.05)。KA癫痫小鼠较正常小鼠GLT-1表达明显降低,但Cef处理并未明显提升GLT-1 的表达。结论 腹腔注射Cef部分抑制KA癫痫小鼠的慢性自发性癫痫发作,但无明显提升海马中GLT-1的表达,提示其可能并非是通过提高星形胶质细胞的谷氨酸清除能力而抑制癫痫发作。

关键词: 关键词:头孢曲松钠, 海人酸内侧颞叶癫痫模型, 谷氨酸转运蛋白GLT-1

Abstract: Objective To study the effects of Ceftriaxone on the seizures and the expression of glutamate transporter (GLT-1) in kainic acid (KA) epilepsy model. Methods Firstly, a chronic spontaneous seizure mouse model was established by unilateral hippocampal injection of KA and monitored by vEEG technique to record seizures. The experimental group received intraperitoneal injection of Cef 200 mg/(kg?d) and the control group received normal saline. Several indicators such as seizure frequency, interictal spike waves and histological phenotypes were used to evaluate the function of Cef. Then we use the western blot to detect the effect of expression for GLT-1. Results Unilateral hippocampal injection of KA 200ng successfully established the mesial temporal lobe epilepsy model. Cef can reduce the seizures from 2.145 times / day to 1.597 times / day, decreased by 31.2% with a statistical significance (p<0.05). Cef treatment did not significantly enhance the expression of GLT-1which test by Western blot. Conclusion Intraperitoneal injection of Cef partially inhibit the seizures of KA model, but the expression of GLT-1 in hippocampus was not enhanced. It is suggest that ceftriaxone may inhibit seizures through other mechanisms.

Key words: Key words: Ceftriaxone, Kainic acid-induced mesial temporal lobe epilepsy, Glutamate transporter GLT-1

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