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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

Annegret Habich1, Bastiaan G J van Tol2, Milan Nemy3,4

  • 1Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
PubMed
概括

大脑与杏仁体的连接预测了 Lew 身体 (DLB) 痴呆症中的神经退行. 这表明,杏仁体中继 alpha-synuclein 病理传播,有助于疾病跟踪.

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科学领域:

  • 神经科学是一个神经科学.
  • 神经病理学神经病理学
  • 医疗成像医学成像

背景情况:

  • 患有体痴呆症 (DLB) 涉及广泛的神经退行,但其区域驱动因素尚不清楚.
  • 假设α-synuclein病理通过结构连接传播,导致神经退行.
  • 这项研究调查了桃体和脑干的连接是否会影响区域大脑体积损失.

研究的目的:

  • 为了确定与杏仁体和脑干连接的大脑区域是否在DLB患者中显示出更大的体积减少.
  • 评估整体大脑网络整合是否与DLB中的神经退行相关.
  • 探索结构连接在α-synuclein病理的传播中的作用.

主要方法:

  • 80名DLB患者和65名健康对照 (HCs) 接受了T1加权和扩散加权的MRI.
  • 区域大脑体积被量化,白质谱构建了一个结构网络.
  • 图形理论计算区域距离到杏仁体/大脑干和网络集成.

主要成果:

  • DLB患者的大脑体积减少,特别是在叶和叶.
  • 与杏仁体更紧密相连的区域表现出更大的体积减少.
  • 在距离大脑干或网络集成和体积减小之间没有发现显著的相关性.

结论:

  • 与杏仁体的结构连接预测了DLB的区域神经退行.
  • 杏仁体似乎是阿尔法同核素病理传播的关键中继器.
  • 这些发现支持使用成像生物标志物来监测DLB进展.