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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...
746
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

Jenna R Groh1, Annalise E Miner1, Chad William Farris1,2

  • 1Boston University Alzheimer's Disease Research Center, Boston, MA, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
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概括
此摘要是机器生成的。

重复的头部冲击 (RHI) 可能会导致前足球运动员白质超强度 (WMH) 的明显模式. 神经病理学证实,RHI-WMH与CTE相关的大脑损伤共同定位.

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科学领域:

  • 神经学 神经学
  • 神经成像是一种神经成像.
  • 病理学 病理学 病理学

背景情况:

  • 慢性创伤性脑病变 (CTE) 是一种与重复的头部冲击 (RHI) 相关的神经退行性脑病变.
  • RHI与晚年白质和血管损伤的风险增加有关.
  • 一种独特的白质超强度 (WMH) 接近硫深度 (RHI-WMH) 的模式已在具有RHI史的个体中观察到.

研究的目的:

  • 实证地描述前美国足球运动员的RHI-WMH模式.
  • 为了研究与这些RHI-WMH病变共同局部化的神经病理.

主要方法:

  • 164名男性前足球运动员和55名对照人接受了MRI进行WMH评估.
  • 根据位置,亮度,形状和大小对WMH病变进行视觉评分.
  • 一个典型的RHI-WMH病例接受了ex vivoMRI和神经病理学检查,包括针对tau,星球细胞和微质细胞的免疫染.

主要成果:

  • 与对照组相比,前足球运动员的RHI-WMH数量显著增加.
  • 职业球员比对照人群显示更多的RHI-WMH,但不比大学球员显著多.
  • 神经病理学揭示了RHI-WMH与CTE tau病理相邻,有骨髓质白,质痕和微质增加.

结论:

  • 经验证据支持RHI暴露导致独特的WMH模式.
  • 组织病理学发现表明RHI-WMH与RHI和CTE相关的神经病理的同定位.