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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

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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相关实验视频

Updated: Jan 7, 2026

Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies
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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

Haokun Liu1, Weiwei Zhang1, Keying Fang1

  • 1Xiangya Hospital, Central South University, Changsha, Hunan, China.

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。

在中国治疗阿尔茨海默氏症 (AD) 的莱卡内马布治疗显示出安全性和改善淋巴功能的潜力,这是7.0T MRI和DTI-ALPS成像所证明的. 长期有效性需要进一步研究.

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科学领域:

  • 神经学 神经学
  • 放射学 放射学是一门学科.
  • 药理学 药理学是指药理学的学科.

背景情况:

  • 莱卡尼马布在早期阿尔茨海默病 (AD) 的有效性已经确立,但在中国的验证是有限的.
  • 传统的阿尔茨海默病评估方法缺乏精度,特别是在脑部成像方面.
  • 像SWI和DTI-ALPS的7.0特斯拉超高场MRI等先进的成像技术可以精确地检测微型血液并评估淋巴功能.

研究的目的:

  • 评估lecanemab在中国AD患者中的疗效和安全性.
  • 评估lecanemab对大脑微观结构和粉样β (Aβ) 清除的影响.
  • 研究先进的MRI技术在监测治疗反应中的作用.

主要方法:

  • 27名AD患者从2024年6月28日开始接受lecanemab治疗.
  • 7.0T西门子TerraMRI与SWI和DTI序列被用于治疗前和后的成像.
  • 使用MMSE和MoCA评估认知功能;使用DTI-ALPS指数评估淋巴功能.

主要成果:

  • 莱卡尼马布在一般情况下是安全的,只有7.4%的患者出现轻微的流感症状.
  • 使用7.0TMRI SWI.没有检测到新的微出血或ARIA-E/ARIA-H.
  • 左侧DTI-ALPS指数的统计学上显著增加表明治疗后淋巴功能得到改善 (p=0.024).

结论:

  • 莱卡尼马布治疗在中国湖南阿尔茨海默病患者中通常是安全的,但长期疗效需要进一步研究.
  • 7.0T MRI SWI是监测微型血液和增强安全监测的宝贵工具.
  • 作为一个成像生物标志物,DTI-ALPS通过反映淋巴功能改善来评估lecanemab的治疗疗效.