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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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Updated: Jan 14, 2026

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

Wiktoria Piaszczynska1, Miray Budak2, Bryan Rowe3

  • 1Center for Molecular & Behavioral Neuroscience, Rutgers University-Newark, Newark, NJ, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|January 13, 2026
PubMed
概括
此摘要是机器生成的。

自体主导性阿尔茨海默病 (ADAD) 突变减少中叶 (MTL) 网络的灵活性,表明早期的功能变化. 在ADAD携带者中,较大的右侧耳内皮层体积与更好的认知功能相关.

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科学领域:

  • 神经科学是一个神经科学.
  • 遗传学 是一个遗传学.
  • 医疗成像医学成像

背景情况:

  • 由PSEN1,APP或PSEN2突变引起的自体主导阿尔茨海默病 (ADAD) 提供了早期阿尔茨海默病 (AD) 神经病理学的模型.
  • 中间叶 (MTL) 对记忆至关重要;然而,ADAD突变对MTL网络动态和子场完整性的影响仍未得到充分研究.
  • 确定ADAD进展的早期生物标志物对于了解疾病机制至关重要.

研究的目的:

  • 研究ADAD突变对MTL网络灵活性和子场体积完整性的影响.
  • 为了确定ADAD进展的潜在早期生物标志物.
  • 探索MTL结构和功能措施与ADAD患者认知结果之间的关系.

主要方法:

  • 有ADAD突变的36名参与者的队列接受了基因型定型,认知评估 (CASI) 和3TMRI.
  • 分析包括ANCOVA和线性回归,年龄作为共变量.
  • 神经成像专注于MTL网络的灵活性和子领域的数量.

主要成果:

  • ADAD突变携带者显示MTL网络灵活性显著降低,这表明动态连接性发生了变化.
  • 运营商和非运营商之间没有观察到MTL子领域体积的显著差异.
  • 右耳内皮层体积与认知评分 (CASI) 呈正相关,表明功能得到保留.

结论:

  • 减少MTL动态网络灵活性可能作为ADAD的早期功能生物标志物,在结构变化之前.
  • 较大的右耳内皮层体积与ADAD的更好的认知表现有关,突出其保护作用.
  • 综合基于网络和特定子领域的分析,考虑到ADAD突变状态,对于了解疾病机制至关重要.