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修改后的甘油三指数与痴呆症亚型和大脑结构风险的关联:一项前性队列研究
Hanying Duan1, Jiayao Liu1, Xiaodong Pan1
1Department of Neurology, Fujian Medical University Union Hospital, Fuzhou, China.
Frontiers in neurology
|March 16, 2026
概括
修改的甘油三糖 (TyG) 指数,如TyG-BMI和TyG-WC,与阿尔茨海默病和血管痴呆症的风险增加有关. 较高的TyG水平也与大脑结构变化相关,强调用于预防痴呆症的代谢健康.
科学领域:
- 神经科学是一个神经科学.
- 代谢健康 代谢健康
- 老年学是一门学科.
背景情况:
- 改性甘油三糖 (TyG) 指数与痴呆症亚型,包括阿尔茨海默病 (AD) 和血管痴呆症 (VaD) 之间的关系尚不清楚.
- 修改的TyG指数,如TyG与体重指数 (TyG-BMI) 和TyG与腰围 (TyG-WC),是新出现的代谢功能障碍的标志物.
研究的目的:
- 调查修改后的TyG指数 (TyG-BMI和TyG-WC) 与事件AD和VaD的风险的潜在关联.
- 检查修改的TyG指数和结构性大脑变化之间的关系,特别是海马体积和白质超强度 (WMH) 体积.
主要方法:
- 来自英国生物银行的356,454名没有痴呆症的参与者的分析.
- 利用多变量调整的考克斯比例危险模型来评估痴呆风险和脑结构关联的线性回归.
- 采用受限立方线 (RCS) 分析来评估修改的TyG指数与痴呆风险之间的非线性关系.
主要成果:
- 泰格-BMI和泰格-WC都表明了与痴呆风险的剂量反应关系,较高的水平与AD和VaD发病率的增加有关.
- 观察到显著的非线性关联:对AD风险的U形曲线和关于修改的TyG指数的VaD风险的J形曲线.
- 更高的TyG指数与海马体体积减少和白质强度 (WMH) 负担增加相关,表明大脑结构变化.
结论:
- 修改后的TyG指数与AD和VaD风险有明显的非线性关联.
- 这些代谢标志物与不良的结构性大脑变化有关,这突显了它们在痴呆病变发生过程中的作用.
- 保持新陈代谢健康对于预防痴呆和促进健康的大脑衰老至关重要.
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