外围生物标志物预测2型糖尿病转化为阿尔茨海默氏症前认知衰退:一项多中心后续研究
Yanchao Liu1,2, Benrong He2,3, Kai Du4,5
1Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Journal of Alzheimer's disease : JAD
|July 26, 2024
概括
识别诸如嗅觉功能,血小板GSK-3β活性和血Aβ42 / Aβ40比率等生物标志物可以预测2型糖尿病患者患有类似阿尔茨海默病的认知衰退高风险,从而使早期干预成为可能.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 生物标志物发现发现
背景情况:
- 阿尔茨海默氏病 (AD) 的患病率正在上升,需要及早识别有风险的个体.
- 2型糖尿病 (T2D) 是AD的重要独立风险因素.
- 早期预测T2D患者的认知衰退对于及时干预和潜在地减少AD发病率至关重要.
研究的目的:
- 确定能够预测T2D转化为前阿尔茨海默病 (AD) 类认知衰退的外围生物标志物.
- 建立一个预测模型,用于早期识别易受认知障碍影响的T2D个体.
主要方法:
- 一项涉及159名T2D患者的纵向研究分析了认知状态 (MMSE) 与生物标志物相比:APOE基因型,血氨基酸β (Aβ),血小板GSK-3β活性和嗅觉功能.
- 使用后勤回归和ROC曲线来开发一个预测模型.
- 38名患者的MRI扫描探索了认知,生物标志物和大脑结构之间的相关性.
主要成果:
- 与正常认知患者相比,患有轻度认知障碍 (MCI) 的T2D患者的嗅觉功能较差,血小板GSK-3β活性增加,血Aβ42/Aβ40比率更高.
- 一个预测模型表明,在某些T2D患者中,AD前认知能力下降的可能性更高.
- 核磁共振成像数据显示,MMSE得分与大脑结构之间存在正相关性,而血小板GSK-3β活性与大脑结构之间存在负相关性.
结论:
- 高血小板GSK-3β活性,较高的血Aβ42 / Aβ40比率,以及降低的嗅觉功能与T2D患者的前AD类认知衰退有关.
- 这些生物标志物可用于预测T2D患者在早期前AD-like认知衰退的高风险.
- 这种预测能力支持T2D患者的早期干预策略,这些患者有发展AD类症状的风险.
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