在强迫症障碍中改变了前和后皮层的微观结构 - 一个多站点的大型分析.
Anders Lillevik Thorsen1,2,3, Vilde Brecke4,5, Dag Alnæs6,7
1Bergen Center for Brain Plasticity, Haukeland University Hospital, Bergen, Norway. anders.lillevik.thorsen@helse-bergen.no.
Molecular psychiatry
|March 16, 2026
概括
强迫症 (OCD) 显示皮质微观结构的改变,特别是与髓化相关的较高的灰色/白质对比度 (GWC). 这些变化与灰质结构和强迫症症状呈现有关.
科学领域:
- 神经成像是一种神经成像.
- 神经精神病学是一种神经精神病学.
- 人类大脑成像技术
背景情况:
- 皮层形态变化在强迫症 (OCD) 中是众所周知的.
- 在强迫症中,皮层内髓化及其与皮层微观结构的关系尚未得到充分研究.
- 在T1加权的MRI上,灰色/白质对比度 (GWC) 是皮质内髓化的一个潜在标志物.
研究的目的:
- 通过使用GWC. 调查OCD中的皮层内髓化差异.
- 检查GWC,灰色物质宏观结构 (RVI) 和强迫症之间的关系.
- 探索GWC与强迫症的临床/人口因素之间的关联.
主要方法:
- 通过独立组件分析,在8个国际地点对454名强迫症成年人和394名健康对照进行了GWC模式的比较.
- 评估了GWC与来自ENIGMA-OCD灰色物质形态学的区域脆弱性指数 (RVI) 的相关性.
- 在强迫症组中研究了GWC与人口统计和临床变量之间的相关性.
主要成果:
- 与对照人群相比,强迫症患者在头和额头区域的GWC显著增加.
- 在患有强迫症的人群中,强迫症RVI升高与GWC的广泛增加相关.
- 额头区域的高GWC与性/宗教强迫症症状有关.
结论:
- 这项研究提供了关于强迫症皮质微结构变化的新证据.
- 皮层微观结构变化 (GWC) 与灰色物质宏观结构和强迫症的临床表现有关.
- GWC 作为一个有前途的神经成像标记,用于探索强迫症的皮质病理生理学.
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