在功能完整的老年人中,血压指标与大脑衰老的液体生物标志物之间的关系
Anna M VandeBunte1, Bailey L Ortiz1, Emily W Paolillo1
1University of California, San Francisco.
Research square
|April 8, 2025
概括
脉压升高与与痴呆相关的生物标志物的较高水平有关,包括阿尔茨海默病和神经退行症的生物标志物. 控制血压,特别是脉冲压,对于大脑健康和降低痴呆风险至关重要.
科学领域:
- 神经科学是一个神经科学.
- 心血管健康 心血管健康
- 生物标志物研究 生物标志物研究
背景情况:
- 心血管健康显著影响痴呆风险,高血压是大脑衰老的关键因素.
- 血液生物标志物 (pTau181,Aβ42/40,NfL,GFAP) 有助于了解痴呆症,但它们与特定血压指标的联系需要进一步探索以进行个性化预防.
- 这项研究调查了各种血压指标和与神经退行症和阿尔茨海默病相关的血生物标志物之间的关联.
研究的目的:
- 检查不同血压指标 (透气,收缩,脉压) 和血生物标志物之间的关系.
- 评估这些关系如何根据性别,年龄和APOE-ε4状态而有所不同.
- 了解对个性化痴呆症预防策略的影响.
主要方法:
- 109名认知完整的老年人接受了血生物标志物分析的血液抽取 (pTau181,Aβ42/40,NfL,GFAP).
- 实验室内血压量化,包括透气,收缩和脉冲压.
- 使用回归和相互作用模型分析生物标志物水平作为血压指标的函数,调整共变量.
主要成果:
- 较高的脉压与pTau181,NfL和GFAP水平的增加相关,但不是Aβ42/40.
- 较高的缩血压与升高的pTau181有关;腹缩血压没有显著的关联.
- 脉压升高与女性高GFAP和APOE-ε4载体较低Aβ42 / 40的较强联系.
结论:
- 脉压升高和静脉血压升高与阿尔茨海默病和神经退行症标志物增加有关.
- 这些发现强调了血压管理的重要性,特别是脉压,以减少痴呆风险.
- 将心血管健康数据与生物标志物的整合可以增强个性化的痴呆症预防和管理.
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