在2型糖尿病中,形态相似性网络与大脑基因表达之间的关联
Qiaohui Liu1, Xin Du1, Yang Zhang1
1Department of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China.
Neuroscience
|January 30, 2025
概括
2型糖尿病 (T2DM) 改变了大脑结构,影响了认知功能. 这项研究揭示了T2DM大脑的形态相似性减少,特别是在感觉运动和注意力网络中,与记忆缺陷和特定的基因表达模式有关.
科学领域:
- 神经成像是一种神经成像.
- 遗传学 是一个遗传学.
- 内分泌学 在内分泌学.
背景情况:
- 2型糖尿病 (T2DM) 经常与认知障碍有关.
- 异常的大脑网络连接是T2DM的一个已知的特征.
- 了解T2DM中的结构性大脑变化对于解决认知衰退至关重要.
研究的目的:
- 为了研究T2DM患者的结构性大脑差异,使用形态相似网络 (MSN) 方法.
- 在T2DM中量化大脑区域之间的结构相似性.
- 探索T2DM中大脑结构变化,认知功能和基因表达之间的关系.
主要方法:
- 采用了使用结构和扩散MRI的形态相似性网络 (MSN) 方法.
- 全球和区域的量化形态相似性 (MS).
- 利用艾伦人类大脑图谱 (AHBA) 获取转录组数据,并进行转录-神经成像关联分析.
主要成果:
- 在T2DM患者中显著减少全球MS.
- 左感觉运动和右突出/腹部注意网络中的MS减少;双边视觉网络中的MS增加.
- 视觉网络中MS增加与记忆功能负相关;确定298个与MSN异常相关的基因.
结论:
- T2DM与广泛的结构性大脑变化有关,包括改变的形态相似性.
- 特定的网络变化 (传感运动,注意力,视觉) 和它们与记忆功能的相关性突出显示了关键受影响区域.
- 与T2DM相关的大脑变化相关的鉴定基因表达模式为认知障碍和潜在的治疗点提供了分子洞察力.
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