首都医科大学学报 ›› 2014, Vol. 35 ›› Issue (1): 108-112.doi: 10.3969/j.issn.1006-7795.2014.01.023

• 基础研究 • 上一篇    下一篇

超黄金治疗期的缺血性中风大鼠模型、治疗模式及疗效表述

蒋雪云1, 张颖洁2, 赵明2   

  1. 1. 首都医科大学医学实验与测试中心, 北京 100069;
    2. 首都医科大学化学生物学与药学院, 北京 100069
  • 收稿日期:2013-06-28 出版日期:2014-02-21 发布日期:2014-02-21
  • 通讯作者: 赵明 E-mail:maozhao@126.com
  • 基金资助:

    北京市自然科学基金(7122023)。

Long-term model, administration pattern and efficacy description of rats in acute ischemic stroke condition

Jiang Xueyun1, Zhang Yingjie2, Zhao Ming2   

  1. 1. Medical Experiment and Test Center, Capital Medical University, Beijing 100069, China;
    2. College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
  • Received:2013-06-28 Online:2014-02-21 Published:2014-02-21
  • Supported by:

    This study was supported by Natural Science Foundation of Beijing (7122023).

摘要:

目的 研究长时缺血性中风大鼠模型及治疗有效性和出血不良反应。方法 连续给药7 d,使用自身对照法对大鼠进行单独的神经评分。结果 体内实验中立即给予1 μmol/kg自由基多肽缀合物(JXY,Gly-Arg-Pro-Ala-Lys-Arg-Gly-Asp-Val)治疗急性缺血性脑卒中大鼠,或发病4、6和24 h后给药均可治愈。这种优势在以JXY 1 μmol/kg为初始剂量并持续给药时被进一步增强。相反,3 mg/kg t-PA没有这样的治疗效果。结论 急性缺血性脑卒中发病超过3 h后的溶栓治疗中提高t-PA的疗效和限制其神经毒性具有重要的临床意义。急性缺血性脑卒中发病后4、6、24 h的大鼠模型具有广泛的用途。1 μmol/kg JXY在急性缺血性脑卒中大鼠模型中立即治疗或发病4、6、24 h后治疗均有效。

关键词: 缺血性中风, 大鼠模型, 行为, 不良反应

Abstract:

Objective To establish rat model of acute ischemic stroke of long-term symptom onset, as well as to evaluate therapeutic efficacy and side effects. Methods Individually neurological ratings were scored and self-contrast was performed, as well as continues administration were given for 6 consecutive days. Results In vivo 1 μmol/kg JXY(Gly-Arg-Pro-Ala-Lys-Arg-Gly-Asp-Val) treated rats of acute ischemic stroke immediately, or 4, 6 and 24 h after symptom onset were cured. This advantage was further enhanced by continuously administered JXY with 1 μmol/kg initial dose. In contrast, 3 mg/kg t-PA had no such therapeutic efficacy. Conclusion Improving efficacy and limiting the neurotoxicity of t-PA are of clinical importance to thrombolytic therapy in the treatment of acute ischemic stroke over 3 h symptom onset. The rat models of acute ischemic stroke of 4, 6 and 24 h symptom onset have broad utility. On the model 1 μmol/kg JXY is capable of treating acute ischemic stroke rats immediately, 4, 6 and 24 h after symptom onset.

Key words: ischemic stroke, experimental model, behavior, side effect

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