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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

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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.
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

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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

Yarovinsky Natalya1,2, Rafi Hadad3,4, Iris Heller3

  • 1Technion-Israel Institute of Technology, Haifa, Israel.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
PubMed
概括
此摘要是机器生成的。

诊断认知衰退需要全面的生物标志物分析. 在差异诊断中包括自身免疫性脑病变可以为认知障碍患者挽救生命.

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科学领域:

  • 神经学 神经学
  • 生物化学 生化学
  • 免疫学 免疫学 免疫学

背景情况:

  • 认知衰退的准确诊断对于神经退行性疾病的有效治疗至关重要.
  • 进步使得可以测量阿尔茨海默病 (AD) 生物标志物和自身免疫抗体.
  • 从2020年6月开始,实施了一种综合评估方法.

研究的目的:

  • 评估认知障碍综合诊断方法的有效性.
  • 为了实现底层病因学的准确的临床生物学诊断.
  • 为了区分神经退行性和自身免疫性认知衰退的原因.

主要方法:

  • 131名认知/行为恶化患者接受了腰部穿刺,以分析脑脊液 (CSF).
  • 脑脊液分析包括细胞计数,蛋白质,葡萄糖,化物,细胞学,AD生物标志物 (tau,p-tau,Aβ42) 和抗体面板.
  • 评估包括神经学,认知评估和成像.

主要成果:

  • 在120名受试者中,59%的AD生物标志物检测呈阳性.
  • 在92名受试者中,15%的受试者检测出神经瘤抗体呈阳性,其中8名具有生物标志物确认的AD和6名非AD病理.
  • 在77个月内,有两名AD生物标志物和神经瘤抗体阳性患者死亡,6名接受免疫治疗,5名被诊断患有癌症.

结论:

  • 生物标志物在诊断认知和行为障碍方面非常有价值,可以防止阿尔茨海默病的误诊.
  • 在认知衰退的差异诊断中,应考虑自身免疫性脑病变.
  • 及时诊断和适当治疗自身免疫性疾病可以挽救生命.