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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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生物标志物 生物标志物

Chen Tian1

  • 1The First Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.

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

研究人员确定了血液中的来自大脑的细胞外囊泡 (EV) 作为阿尔茨海默病 (AD) 的有希望的生物标志物. 这些携带化陶 (pTau217) 的EVs在诊断AD并将其与其他痴呆症区分开来时具有很高的准确性.

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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
  • 分子诊断学 分子诊断

背景情况:

  • 阿尔茨海默病 (AD) 诊断具有挑战性,目前的方法具有侵入性和昂贵性.
  • 由阿尔茨海默病影响的大脑区域的细胞外囊泡 (EVs) 提供了一个微侵袭的生物标志物来源.
  • 对于早期阿尔茨海默病检测和差异诊断而言,需要可访问的生物标志物至关重要.

研究的目的:

  • 识别和验证用于早期发现阿尔茨海默病 (AD) 的新型,最小侵入性生物标志物.
  • 开发一种可靠的方法来诊断AD,并使用周围血液将其与其他痴呆症区分开来.
  • 探索神经源外细胞囊泡 (EVs) 作为诊断工具的潜力.

主要方法:

  • 一项涉及523名参与者的多中心研究 (AD患者,非AD痴呆患者,健康对照).
  • 从小鼠神经元培养和人体血中获得的EV的丰富和质谱分析.
  • 使用免疫组织化学,电子冷显微镜和NanoFCM流量纳米分析仪验证生物标志物 (pTau217,GABRD,GPR162).

主要成果:

  • 携带化陶 (pTau217) 的神经性EV被确定为敏感和特定的AD生物标志物.
  • 神经元特异性标记物GABRD和GPR162在人体血EV中得到了验证.
  • 纳米FCM Flow NanoAnalyzer提供了一个快速稳定的平台,可以通过等离子EV检测中枢神经系统病理.

结论:

  • 携带Aβ和pTau的血神经性EV是AD诊断和差异诊断的高度有效的生物标志物.
  • 这种方法对早期干预和阿尔茨海默病的向治疗开发有显著的前景.
  • 周围血液EV分析为改善阿尔茨海默病管理提供了新的途径.