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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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生物标志物 生物标志物

Ping Che1, Nan Zhang2

  • 1Tianjin Medical University General Hospital, Jin Tian, Jin Tian, China.

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

血胎盘生长因子 (PlGF) 是皮下缺血性血管痴呆症 (SIVD) 的潜在生物标志物. 升高的plgf水平可以准确地区分sivd患者与对照患者和ftld患者,与认知功能有负相关性.

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科学领域:

  • 神经学 神经学
  • 生物标志物发现发现
  • 血管痴呆症研究研究

背景情况:

  • 大脑小血管疾病 (SVD) 显著导致皮下缺血性血管痴呆症 (SIVD).
  • 胎盘生长因子 (PlGF) 是一种血管性蛋白质,可能会影响脑血管透性.

研究的目的:

  • 评估PlGF作为SIVD的诊断生物标志物.
  • 探索PlGF水平和SIVD患者的认知功能之间的关系.

主要方法:

  • 包括患有SIVD,阿尔茨海默病 (AD),前性痴呆症 (FTLD) 和认知不受损的对照 (CUC) 的患者.
  • 利用临床评估,认知测试,MRI扫描和通过电化学发光免疫测试测量血PlGF度.

主要成果:

  • 在SIVD患者中,血PlGF显著升高.
  • PlGF在区分SIVD与CUC和FTLD方面表现出很高的准确性,但对AD的歧视较弱.
  • 升高的plgf水平与记忆,信息处理,执行功能,语言,视觉空间功能和整体认知得分负相关,即使在调整后.

结论:

  • 血PLGF显示为SIVD的诊断生物标志物具有前途.
  • PlGF水平与SIVD的认知障碍有关.