在2型糖尿病患者和没有外周微血管病变的患者中,海马体的结构连接性没有改变
1Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China.
Brain imaging and behavior
|July 12, 2025
概括
早期的2型糖尿病与更差的执行功能有关,但不一定与海马体结构连接性的变化有关. 这表明海马纤维连接可能无法预测糖尿病的认知衰退.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 心理学 心理学 心理学
背景情况:
- 在早期的2型糖尿病中注意到海马中的功能性超连接性.
- 结构性大脑连接对糖尿病认知的影响尚不清楚.
研究的目的:
- 研究海马结构连接性及其与早期2型糖尿病患者认知表现的关联.
- 为了确定海马连接是否预测了这一群体的认知衰退.
主要方法:
- 扩散MRI和概率通道图用于分析82名2型糖尿病患者和75名健康对照者的海马体纤维连接.
- 进行了认知评估,包括Stroop测试.
- 对年龄,性别,BMI和教育进行控制的组比较.
主要成果:
- 糖尿病患者的执行功能比对照患者差 (Stroop精度较低,Stroop反应时间较长).
- 虽然在患者中观察到海马与各种大脑区域的连接性减少,但在FDR调整后,差异在统计学上并不显著.
- 在糖尿病患者中,海马连接强度与认知表现无关.
结论:
- 早期的2型糖尿病与执行功能受损有关.
- 这种认知衰退可能与海马结构连接的改变没有直接联系.
- 海马结构连接不太可能是2型糖尿病认知缺陷的早期预测因素.
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