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基础科学和病原发生学

Vaibhav A Janve1,2, Mabel Seto3, Hannah M Klinger4

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此摘要是机器生成的。

化陶氏217 (pTau217) 在临床前阿尔茨海默病 (AD) 中显示与免疫和表观遗传基因通路的关联. 这些基于血液的生物标志物可能会改善早期AD预测.

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科学领域:

  • 神经科学是一个神经科学.
  • 基因组学就是基因组学.
  • 生物标志物发现发现

背景情况:

  • 血pTau217是一种经过验证的阿尔茨海默病 (AD) 生物标志物,反映了临床前阶段的粉样蛋白病理.
  • 研究与pTau217相关的血液转录组变化可以识别早期的AD指标.
  • 量化血细胞种群为AD相关的变化提供了洞察力.

研究的目的:

  • 在认知正常的老年人中识别与血pTau217水平相关的血液基因网络变化.
  • 为了确定血细胞丰度的变化是否与血pTau217水平相关.
  • 探索转录基因数据与粉样蛋白负担之间的关系.

主要方法:

  • 全血RNA测序和血pTau217数据来自A4研究中的724名参与者.
  • 使用CIBERSORTx.x.对20718个基因的分析和细胞部分的量化.
  • 重量基因同表达网络分析 (WGCNA) 和线性回归以确定与pTau217水平的关联.

主要成果:

  • 五个基因模块与血pTau217水平有显著的关联.
  • 与细胞形成,免疫反应和翻译相关的模块与pTau217.7有关.
  • 增加的中性粒细胞丰度与较高的pTau217水平相关.

结论:

  • 在临床前的AD中,免疫反应,表观遗传途径和血pTau217之间存在关联.
  • 血液转录网络可以作为临床前AD预测的补充生物标志物.
  • 需要进一步的研究来将这些发现与大脑粉样蛋白PET成像相关联.