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Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

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Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
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Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
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Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies
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生物标志物 生物标志物

Milton Guilherme Forestieri Fernandes1, Maxime Pinard2, Esen Sokullu2

  • 1Université de Montréal, Montreal, QC, Canada.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
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概括
此摘要是机器生成的。

针对特定的神经原蛋白 (NLGN) 片段的血液测试显示在阿尔茨海默氏症 (AD) 早期阶段的水平升高. 这些发现表明NLGN碎片可能是早期AD检测和查的有价值的生物标志物.

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科学领域:

  • 神经科学是一个神经科学.
  • 生物标志物发现发现
  • 神经退行性疾病 神经退行性疾病

背景情况:

  • 阿尔茨海默病 (AD) 诊断通常发生在显著的神经退行之后.
  • 早期检测对于AD的有效治疗至关重要.
  • 像Neuroligin (NLGN) 这样的突触蛋白在AD早期受到影响,在血液中可以检测到碎片.

研究的目的:

  • 评估神经蛋白 (NLGN) 片段作为早期阿尔茨海默病 (AD) 的潜在血液生物标志物.

主要方法:

  • 血液样本从整个AD频谱 (临床前,前期,早期AD,健康对照) 的个人中收集.
  • 用多重复合和高分辨率的双重质谱法来量化NLGN碎片.
  • 统计分析将NLGN碎片水平与已确定的AD指标 (pTau,海马体积,MMSE) 相关联.

主要成果:

  • 特定的NLGN片段的升高水平在患有amnestic轻度认知障碍 (aMCI) 和早期AD的个体中被发现.
  • NLGN碎片水平与血酸化的Tau (pTau) 有正相关.
  • 在aMCI和早期AD组中,NLGN片段与迷你精神状态检查 (MMSE) 评分和海马体积相反相关.

结论:

  • 血液检测突触蛋白变化,特别是NLGN片段,有助于早期AD诊断.
  • 在prodromal和早期AD中增加的NLGN片段与pTau等疾病指标相关.
  • 作为初级保健查工具,NLGN片段是有前途的,也是早期AD生物标志物小组的一部分.