带状内部神经元的闭环招募可以防止强迫性理行为
Sirenia Lizbeth Mondragón-González1, Christiane Schreiweis1, Eric Burguière2
1Institut du Cerveau - Paris Brain Institute - ICM, Sorbonne Université, Inserm, CNRS, AP-HP Hôpital de la Pitié Salpêtrière, Paris, France.
Nature neuroscience
|May 1, 2024
概括
研究人员发现,在状体中激活特定的大脑细胞,帕瓦胺阳性内部神经元 (PVIs),可以减少小鼠的强迫性理. 适应性闭环刺激在潜在的治疗应用中被证明是非常有效的.
科学领域:
- 神经科学是一个神经科学.
- 行为科学 行为科学
- 视觉遗传学 视觉遗传学
背景情况:
- 强迫性行为与条体的过度活动有关.
- 帕瓦胺阳性条状内神经元 (PVIs) 是调节条状活动和抑制不适当行为的关键.
研究的目的:
- 调查条纹性PVI在调节强迫行为中的作用.
- 评估PVI光遗传刺激对减少Sapap3淘汰小鼠过度自我修饰的疗效.
主要方法:
- 使用Sapap3淘汰赛小鼠作为强迫性行为 (过度自我修饰) 的模型.
- 采用连续和实时闭环光遗传刺激以准条状PVI.
- 使用轨道前皮层活动 (1-4 Hz频段增加) 作为在闭环刺激中理开始的生物标志物.
主要成果:
- 持续的光遗传激活PVI显著降低了Sapap3-KO小鼠的自我理,使其达到野生类型的水平.
- 针对理发作的闭环刺激与持续刺激同样有效.
- 与连续刺激相比,闭环刺激需要减少87%的刺激时间.
结论:
- 状PVI在抑制强迫性行为方面发挥着至关重要的作用.
- 实时闭环光遗传刺激为强迫性障碍提供了一种有效的治疗策略.
- 这种方法为治疗行为强迫症的适应性刺激协议铺平了道路.
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