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相关概念视频

Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

746
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
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Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers01:19

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

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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.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
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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

Yan Helen Hu1, Elizabeth Somers1, Miyuru Amarapala2

  • 1Eisai Inc., Nutley, NJ, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
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概括

基于血液的生物标志物 (BBM) 对阿尔茨海默病 (AD) 显示出强大的诊断性能,与PET和CSF测试相关. 有证据支持它们在临床上用于阿尔茨海默病的诊断和选择患者接受向治疗.

科学领域:

  • 神经学 神经学
  • 生物标志物研究 生物标志物研究
  • 诊断医学 诊断医学 诊断医学

背景情况:

  • 阿尔茨海默氏病 (AD) 诊断依赖于既有但具有侵入性的方法,如PET和CSF.
  • 新兴的基于血液的生物标志物 (BBM) 为AD病理检测提供了可访问,负担得起和不那么侵入性的替代品.
  • 了解BBM有效性和实用性的证据对于指导临床决策和治疗选择至关重要.

研究的目的:

  • 系统地审查和描述已建立和新兴ADBBM的临床和非临床证据.
  • 评估AD BBM的分析有效性 (AV),临床有效性 (CV),临床实用性 (CU) 和非临床实用性 (NCU).
  • 评估BBM在早期AD检测和管理中的诊断性能和临床影响.

主要方法:

  • 一个结构化的文献搜索 (Medline/PubMed) 使用PICOS框架确定了330篇相关文章 (2018-2024年).
  • 研究评估了等离子体生物标志物,包括β-粉样蛋白 (Aβ),Tau (p-Tau 217),GFAP和APOE,这些生物标志物用于患有轻度认知障碍或因AD引起轻度痴呆症的成年人.
  • 证据质量使用适应的海斯评分系统进行评估.

主要成果:

  • 关于AD BBM的出版物呈指数级增长,到2024年底将有200多项研究.

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  • 大多数研究都集中在CV上,越来越多的研究表明CU和NCU,包括对管理和成本效益的影响.
  • 研究表明,对多样化的群体和面临风险的认知不受损的成年人越来越感兴趣.

    • 结论:

    • BBM显示出强大的AD诊断性能,与PET和CSF相关,并显示出显著的临床实用性和经济价值.
    • 证据支持临床采用BBM用于常规AD诊断和为目标治疗选择患者.
    • 鼓励付款人评估BBM的报销,以改善患者在AD诊断和管理中的机会.