在临床前模型中评估中风后认知:来自多中心研究的教训和建议
Gaia Brezzo1,2, Kristy A Zera3, Dana E Straus1,2
1UK Dementia Research Institute, University of Edinburgh, Edinburgh, UK.
概括
在小鼠中中风后检测认知缺陷是具有挑战性的. 虽然新型物体识别测试没有显示出缺陷,但巴恩斯迷宫在中风的小鼠中显示出显著的损伤,突出了需要多站点验证的需要.
科学领域:
- 神经科学是一个神经科学.
- 脑卒中研究 脑卒中研究
- 认知障碍 认知障碍是一种认知障碍.
背景情况:
- 认知能力下降是中风的一个主要的长期后果.
- 目前,对于中风后认知障碍,还没有有效的治疗方法.
- 强大的认知表现检测对于开发新疗法至关重要.
研究的目的:
- 建立一种可靠的方法,以在多个地点的研究环境中检测中风后的认知表现缺陷.
- 评估不同中风诱导方法对认知功能的有效性.
- 确定挑战,并为未来的临床前中风认知研究提供建议.
主要方法:
- 在小鼠中使用永久远端中脑动脉封闭 (dMCAO) 或暂时MCAO诱导缺血性中风.
- 在中风后的不同时间点使用新型物体识别 (NOR) 和巴恩斯迷宫 (BM) 测试来评估认知功能.
- 组织学,免疫染色和血神经纤维光链水平被用来评估大脑损伤.
主要成果:
- 新型物体识别测试没有检测到显著的认知缺陷.
- 巴恩斯迷宫测试显示,在接受dMCAO的小鼠中,表现明显差.
- 根据中风模型,组织学分析证实了不同程度的组织损伤和神经元损失.
结论:
- 巴恩斯迷宫测试在临床前模型中显示出检测中风后认知缺陷的前景,但需要多站点验证.
- 在中风后检测认知障碍存在重大挑战,特别是在多个地点的研究中.
- 标准化的方法和仔细的研究设计对于未来的临床前中风认知研究至关重要.
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