在健康个体中,鼻腔内施用石胺对体结构的急性影响
Benjamin Spurny-Dworak1,2, Thomas Liebe3, Samantha Graf1,2
1Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
The international journal of neuropsychopharmacology
|May 24, 2025
概括
乙胺,一种胺衍生物,在健康个体中快速增加了thalamic体积,特别是在右侧结构中,如脉动前侧和中背侧侧侧细胞核.
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.
- 放射学 放射学是一门学科.
背景情况:
- 胺,一个N-甲基-D-酸盐受体对抗剂,在精神病学中用于其快速的抗抑郁药和抗自杀作用在严重抑郁症中.
- 胺的心理效应使精神分裂症症状的建模成为可能,因为其在感官门,注意力和意识中的作用,质体是主要目标.
研究的目的:
- 为了研究注入鼻腔的esketamine对健康个体的thalamic结构的影响.
- 通过使用磁共振成像来检查在施用esketamine后的泰拉马斯及其核中的快速结构变化.
主要方法:
- 这是一项交叉,安慰剂控制的研究,涉及26名健康受试者 (14名女性,平均年龄为24.3岁).
- 试验对象接受了56毫克埃斯基他或安慰剂的亚麻醉剂量,随后进行了两次磁共振成像 (MRI) 扫描.
- 用FreeSurfer对T1加权的MPRAGE图像进行了thalamus及其核的形态分析.
主要成果:
- 在右丘脑 (pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.pcorr.p) 中观察到显著的体积增加. = .048) 经过埃斯基坦胺的使用后.
- 显示显著体积增加的特定核包括第一个接受安慰剂的子组中的脉动前核 (p = .048) 和右侧侧侧侧侧细胞核 (p = .034).
结论:
- 素诱导右丘脑区域的快速结构适应,突出显示了丘脑在视觉感知中的作用.
- 这些发现支持泰拉马斯作为理解和建模精神分裂症症状的关键目标.
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