侧面轨道-前-三角轨道的光遗传刺激抑制了强迫性行为
Eric Burguière1, Patrícia Monteiro, Guoping Feng
1McGovern Institute for Brain Research and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Science (New York, N.Y.)
|June 8, 2013
概括
研究人员使用光遗传学来阻止缺乏Sapap3基因的小鼠过度理. 这种方法恢复了行为抑制,并显示出治疗神经精神疾病中重复性行为的前景.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 行为科学 行为科学
背景情况:
- 前前电路功能障碍与具有重复行为的神经精神障碍有关.
- 在小鼠中,Sapap3基因被删除会导致过度理,模拟强迫行为.
研究的目的:
- 在小鼠模型中开发一种光遗传学方法来抑制强迫性,重复性行为.
- 为了研究Sapap3缺陷小鼠行为缺陷背后的神经机制.
主要方法:
- 利用延迟调节任务来评估突变小鼠的行为反应抑制.
- 采用侧面轨道前皮层和条纹终端的专注光遗传刺激.
- 检查了条状投影神经元活动和快速升的神经元微电路.
主要成果:
- 缺乏Sapap3的小鼠在行为反应抑制方面表现出缺陷.
- 这些缺陷与状神经元活动下调受损相关.
- 光遗传刺激成功地恢复了行为抑制和神经活动的正常化.
结论:
- 在前直回路中的光遗传干预可以有效地减少重复性行为.
- 这项研究突出了针对强迫性行为特征的疾病的向疗法的潜力.
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