生物标志物 生物标志物
Siddharth Kaipa1, Sai R Meka2, Ramesh V Nair1
1Stanford University, Stanford, CA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
概括
这项研究揭示了阿尔茨海默氏病进展期间骨健康标志物的性别特异性变化. 这些发现表明神经退行和骨健康之间存在联系,与衰老的潜在血生物标志物有关.
科学领域:
- 神经科学是一个神经科学.
- 老年学是指老年学的学科.
- 生物化学 生物化学
背景情况:
- 痴呆症是一个主要的全球健康挑战,与衰老和死亡率有关.
- 多种疾病,包括痴呆和虚弱,与死亡率密切相关.
- 骨折和痴呆症共享诸如衰老和生活方式等风险因素,这表明与骨健康有联系.
研究的目的:
- 在阿尔茨海默病 (AD) 进展期间调查骨健康标志物的全球变化.
- 评估与阿尔茨海默病,轻度认知障碍 (MCI) 和健康对照 (HC) 个体的骨代谢相关的血清蛋白水平.
主要方法:
- 分析了来自AD (n=95),MCI (n=134) 和HC (n=394) 参与者的血样本.
- 肝素亲和染色法丰富了血蛋白,随后进行了双重质谱法.
- 选蛋白质以检测骨标记物和衰老标记物.
主要成果:
- 在MCI和AD中观察到与骨相关蛋白质的性别特异性改变.
- 在患有MCI的男性中,原蛋白A1 ((VI),WNT16和OLR1的调节上升;IGFBP-1和Ephrin-A2的调节下降.
- 在患有MCI的女性中,COL降低了调控. 在AD中,FGF-19被调高,IGFBP-1/COL被调低.
- 衰老标志物WNT16和HGFm在MCI中被上调;IL32在AD中被上调.
结论:
- 研究结果表明,神经退行过程中骨组织的性别依赖性变化.
- 衰老的等离子体生物标志物表明衰老,神经退行和骨健康之间存在联系.
- 这项研究突出了了解和管理与年龄相关疾病的潜在新途径.
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