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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

Jung-Min Pyun1, Young Ho Park2, Duygu Tosun3,4

  • 1Soonchunhyang University Seoul Hospital, Seoul, Korea, Republic of (South).

Alzheimer's & dementia : the journal of the Alzheimer's Association
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概括

一个新的血液测试,帕金森氏症.

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科学领域:

  • 神经退行性疾病的神经退行性疾病
  • 阿尔茨海默氏症 (AD) 是一种疾病.
  • 帕金森病 (PD) 是一种疾病.

背景情况:

  • 混合病理,包括阿尔茨海默病 (AD) 和α-synucleinopathy,有助于不同的临床表现和疾病进展.
  • 阿尔法同核素病变对阿尔茨海默氏症临床结果的转录风险影响尚不清楚.
  • 开发了一种基于血液的帕金森病转录风险评分 (PD-TRS),以评估α-synucleinopathy.

研究的目的:

  • 调查基于血液的PD-TRS与AD患者的纵向认知功能之间的关联.
  • 检查PD-TRS与大脑脊髓液 (CSF) 中α-synuclein种子的存在之间的关系.
  • 为了评估PD-TRS对认知衰退的影响,与CSFα-synuclein种子水平相关.

主要方法:

  • 使用PD全基因组关联研究和表达量化特征位置数据的优先目标基因通过孟德尔随机化.
  • 使用来自两个独立队列的血液转录组数据计算PD-TRS:ADNI (n=661) 和ANMerge (n=665).
  • 进行了PD-TRS与纵向认知和CSFα-synuclein种子放大试验 (SAA) 阳性的关联分析.

主要成果:

  • 较高的PD-TRS与ADNI和ANMerge队列中的加速认知衰退率显著相关.
  • 增加的PD-TRS与ADNI队列内的CSF中α-synucleinSAA阳性增加的可能性相关.
  • 观察到PD-TRS和CSFSAA阳性之间的显著相互作用,较高的PD-TRS与更快的认知衰退有关,特别是在SAA阳性个体中.

结论:

  • 基于血液的PD-TRS可以作为检测AD中CSFα-synucleinSAA阳性的生物标志物.
  • 在AD中,PD-TRS显示了反映与混合α-synucleinopathy相关的纵向认知衰退的潜力.
  • 这项研究推动了基于血液的生物标志物的识别,用于评估阿尔茨海默病的混合病理.