剖析皮层形态与神经精神疾病之间的因果关系:双向的孟德尔随机化研究
Bochao Danae Lin1,2,3, Yunzhi Li1,4, Anastasia A Goula3
1Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Centre, Maastricht, The Netherlands.
总脑表面积 (TSA) 和平均皮质厚度 (MTH) 显示与神经心理特征的因果关系. TSA对认知能力产生积极影响,而MTH降低精神分裂症的风险,这表明对大脑健康的潜在干预目标.
科学领域:
- 神经遗传学
- 神经成像
- 精神病学
背景情况:
- 大脑皮层形态 (表面积和厚度) 是高度遗传的.
- 之前的研究表明皮质形态与神经精神现象之间存在联系,但由于混因素,确定因果关系是具有挑战性的.
研究的目的:
- 调查70个大脑皮质形态测量和199个神经精神,行为和代谢表型之间的因果关系.
- 确定影响各种健康结果的特定形态特征.
主要方法:
- 使用基于总结数据的孟德尔随机化 (GSMR).
- 进行了敏感性分析以验证结果.
- 研究皮质形态和199种表型之间的因果关系.
主要成果:
- 全脑皮层表面积 (TSA) 对18种表型产生因果影响,特别是增强认知能力.
- 全球平均皮层厚度 (MTH) 对五种表型产生因果关系,包括降低精神分裂症风险.
- 在MTH和吸烟开始之间观察到双向因果关系;区域分析显示TSA和厚度影响认知和精神分裂症.
结论:
- 大脑形态 (TSA,MTH) 和神经心理特征之间存在显著的双向关联.
- 研究结果表明,有可能改善大脑健康的干预策略.
- 皮层形态在认知功能和精神疾病中起因作用.
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