迪亚泽帕姆在临床高风险精神病患者中调节海马CA1功能连接
Nicholas R Livingston1, Amanda Kiemes1, Owen O'Daly2
1Department of Psychological Medicine, https://ror.org/0220mzb33Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK.
Psychological medicine
|August 8, 2025
概括
在临床高风险精神病患者 (CHR-P) 中,通过调节胺黄油酸 (GABA) 信号,石部分恢复了海马体的CA1失联性. 这表明GABAergic调制是潜在的治疗精神病风险.
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:
- 临床前研究表明,石可以增强海马的胺黄油酸 (GABA) 信号传输,并使与精神病相关的大脑电路正常化.
- 河马网络失联,特别是CA1子领域的失联,在临床高危精神病 (CHR-P) 个体中观察到.
- 这项研究旨在将临床前发现转化为CHR-P患者的临床背景.
研究的目的:
- 在CHR-P个体中研究西巴姆对海马体CA1功能连接的作用.
- 确定是否可以使CHR-P个体的异常功能连接正常化.
- 探索针对精神病治疗的GABAergic途径的潜力.
主要方法:
- 一项随机,双盲,安慰剂控制的研究,涉及18名CHR-P个人和20名健康对照 (HC).
- 休息状态功能磁共振成像 (fMRI) 用于评估海马CA1亚场和核突 (NAc),杏仁体和腹中介前额皮层 (vmPFC) 之间的功能连接 (FC).
- 参与者接受了两次fMRI:一次在接受5毫克泽后,一次在接受安慰剂后.
主要成果:
- 在安慰剂条件下,CHR-P个体与HC相比,CA1-vmPFC和CA1-NAc FC显著降低.
- 与安慰剂相比,在CHR-P患者中,Diazepam的使用显著增加了CA1-vmPFC FC,使其正常化到HC水平.
- 虽然CA1-NAc FC被亚泽巴姆正常化,但CA1-桃体FC在两种情况中的CHR-P个体中仍然异常.
结论:
- 在CHR-P个体中,迪亚泽帕姆部分恢复海马体CA1失联性.
- 通过代谢对GABAergic功能的调节显示出治疗精神病风险的前景.
- 准海马网络连接可能是CHR-P的可行的治疗策略.
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