甲状腺激素的适度对于粉样蛋白和病理之间的关系
Jeong Hyeon Byeon1, Min Soo Byun1,2, Dahyun Yi3
1Department of Neuropsychiatry, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea.
Alzheimer's research & therapy
|July 23, 2024
概括
改变的甲状腺激素可能会影响阿尔茨海默病 (AD) 的进展. 较高的甲状腺激素水平可能会加速大脑中β-粉样蛋白驱动的陶沉积,这表明甲状腺功能和AD神经病理之间存在联系.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 老年学是一门学科.
背景情况:
- 改变甲状腺激素水平与阿尔茨海默病 (AD) 痴呆风险增加有关.
- 准确的神经病理机制连接甲状腺激素和AD痴呆症仍然不清楚.
- 这项研究探讨了甲状腺激素与阿尔茨海默氏症病理,如β-粉样蛋白 (Aβ) 和沉积之间的关系.
研究的目的:
- 为了检查血清甲状腺激素水平与体内Aβ和tau沉积在认知正常的成年人之间的关联.
- 调查甲状腺激素水平是否能缓和Aβ和tau病理之间的关系.
主要方法:
- 从KBASE队列中对291名认知正常成年人 (年龄在55-90岁) 进行横截面研究.
- 测量了血清总三甲状腺素 (T3),自由三甲状腺素 (fT3),自由甲状腺素 (fT4) 和甲状腺刺激激素 (TSH).
- 使用正子发射断层扫描 (PET) 成像检测Aβ ([11C]-PiB) 和tau ([18F]AV-1451) 沉积.
主要成果:
- 甲状腺激素/TSH与Aβ或tau沉积之间没有发现直接联系.
- 在tau沉积上观察到fT4和Aβ (p=0.002) 和fT3和Aβ (p=0.001) 之间存在显著的相互作用.
- 较高的fT4和fT3水平与Aβ和tau沉积之间更明显的正相关,不管异常值是否被移除.
结论:
- 血清甲状腺激素可能会缓解大脑Aβ和tau病理之间的关系.
- 甲状腺激素水平升高可能会加速Aβ-依赖的陶沉积.
- 需要进一步的独立复制研究来证实这些发现.
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