一种分离药物对患有创伤后应激障碍的个体前肢边缘静止状态功能连接的作用:一项随机对照试点研究
Sarah K Danböck1,2,3, Or Duek4,5,6, Ziv Ben-Zion4,5,7
1Department of Psychology, Paris Lodron University of Salzburg, Salzburg, Austria. Sarah.Danboeck@uni-mannheim.de.
Psychopharmacology
|October 23, 2023
概括
胺,一种分裂性药物,在患有创伤后应激障碍 (PTSD) 的个体中没有增加前边缘功能连接. 相反,它暂时降低了前额外皮层和杏仁体之间的连接.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 创伤后应激障碍 (PTSD) 中的离散症状与中部前额皮层 (mPFC) 和杏仁体之间改变的静止状态功能连接 (RSFC) 有关.
- 以前的观察性研究表明存在相关性,但缺乏因果关系的证据.
研究的目的:
- 为了调查胺,一个离散药物,在mPFC子区域和桃体之间RSFC的因果作用,在患有PTSD的个体中.
- 为了检查胺是否会改变与分离症状相关的前边缘连接.
主要方法:
- 一项随机控制的试点研究,涉及26名患有PTSD的人.
- 在功能磁共振成像 (fMRI) 期间,参与者接受了胺 (0.5mg/kg) 或米达胺 (0.045mg/kg).
- 杏仁体和mPFC子区域 (vmPFC,dmPFC,amPFC) 之间的RSFC在基线和药物输注期间被测量.
主要成果:
- 与米达佐拉姆相比,氨酸在杏仁体和mPFC子区域之间没有显著增加RSFC.
- 氨酸诱导的vmPFC-杏仁体RSFC的短暂下降比米达佐拉姆更明显.
结论:
- 胺,一个离散剂,没有增强前边缘边缘RSFC在患有PTSD的个体中,这与之前的相关发现相矛盾.
- 这些结果表明需要进一步研究PTSD中解离的神经生物学机制,这可能需要更细致的视角.
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