在2型糖尿病中异常的大脑血流和大脑功能
Mingrui Li1,2,3, Yifan Li1,2, Kui Zhao1,2
1First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China.
Endocrine
|June 20, 2023
概括
2型糖尿病 (T2DM) 与大脑血流减少和大脑活动改变有关. 这项研究表明,这些变化可能是T2DM患者神经活动的补偿机制.
科学领域:
- 神经科学是一个神经科学.
- 放射学 放射学是一门学科.
- 内分泌学 在内分泌学.
背景情况:
- 2型糖尿病 (T2DM) 与大脑输血受损有关,可能会影响认知功能.
- 了解T2DM的神经生物学基础对于开发有针对性的干预措施至关重要.
研究的目的:
- 评估T2DM对大脑血流 (CBF) 的影响,并探索功能连接 (FC) 的变化.
- 用低频波动 (ALFF) 和中心度 (DC) 的幅度来研究自发大脑活动的变化.
主要方法:
- 招募了40名T2DM患者和55名健康对照 (HC).
- 使用3D-T1WI,静止状态功能性MRI (rs-fMRI) 和动脉旋转标记 (ASL) 扫描.
- 进行认知测试,分析临床,认知和成像数据之间的关系.
主要成果:
- 与HCs相比,T2DM患者在Calcarine_L和Precuneus_R区域表现出较低的CBF.
- 在T2DM患者中观察到对中心叶片和前叶片的升高的DC,在海马体的更高的ALFF.
- 在Calcarine_L中较低的CBF与禁食胰岛素和HOMA_IR负相关.
结论:
- T2DM与与胰岛素抵抗相关的大脑低输液有关.
- 在T2DM中,异常增加的大脑活动和功能连接的增强可能代表一个补偿机制.
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