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使用多式上皮层分片来识别与物质使用障碍相关的人类大脑皮层的新区域
Shizheng Qiu1, Zhishuai Zhang1, Jirui Guo1
1Faculty of Computing, Harbin Institute of Technology, Harbin, China.
Molecular psychiatry
|December 26, 2025
概括
揭示了大脑结构和物质使用障碍 (SUD) 之间的遗传联系. 这项研究确定了影响皮层特征和SUD风险的共同遗传位置,为其复杂的病因提供了新的见解.
科学领域:
- 神经遗传学 神经遗传学
- 精神病学是一个精神病学.
- 人类大脑解剖学 人类大脑解剖学
背景情况:
- 连接人类大脑皮层和物质使用障碍 (SUDs) 的遗传基础尚未得到充分理解.
- 之前的研究还没有完全探索使用详细的区域大脑分片的遗传重叠.
研究的目的:
- 为了研究区域皮层表面积/厚度和四种类型的SUD之间的遗传重叠.
- 确定与SUD风险相关的特定遗传位置和大脑区域.
主要方法:
- 利用人类连接体项目多模式分区 (HCP-MMP) 来定义每半球180个皮质区域.
- 在一个大队列 (N >100万) 中,检查了皮层表型和SUD之间的遗传重叠.
- 采用孟德尔的随机化分析来推断因果关系.
主要成果:
- 在皮层表型和SUD之间确定了17个全球和282个区域共享的基因位点.
- 在特定区域 (例如,insula,运动皮层) 发现了有问题的酒精和尼古丁使用的遗传重叠的类似解剖模式.
- 发现了基因预测的皮质表现型和SUD风险之间的关联,包括特定区域,如腹中前额叶皮质和背复合体.
结论:
- 提供了对皮层结构和SUDs之间共享的遗传病因学的新见解.
- 突出了特定皮层区域及其对SUD易感性的遗传影响的作用.
- 证明了细粒度皮质分片在理解大脑疾病复杂遗传结构的有用性.
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