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相关概念视频

Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

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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:
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Updated: Jan 7, 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

Gurveen Kaur Sandhu1, Jacklyn Leonardo1, Fatin Zahra Zailan1

  • 1Dementia Research Centre (Singapore), Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.

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。

神经纤维光链 (NfL) 在轻度认知障碍 (MCI) 和高白质超强度 (WMH) 的年轻成年人中升高. 这种NFL在老年人中增加了高原,这表明NFL在老年人中增加了高原.

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科学领域:

  • 神经科学是一个神经科学.
  • 生物标志物 生物标志物
  • 老年学是一门学科.

背景情况:

  • 神经纤维光链 (NfL) 是神经元中的关键结构蛋白,在白质超强度 (WMH) 的条件下经常升高.
  • 轻度认知障碍 (MCI) 的年轻人与老年人的NfL水平,WMH负担和认知功能之间的关系需要进一步调查.
  • 这项研究重点关注东南亚MCI社区队列,其中大脑血管疾病负担很大.

研究的目的:

  • 调查NfL度,WMH负担和MCI的东南亚年轻和年长成年人的认知状态之间的关联.
  • 探索NfL作为潜在的生物标志物的作用,用于早期检测白质疾病和认知衰退.

主要方法:

  • 一项对310名被诊断患有MCI的东南亚社区参与者的横截面研究.
  • 参与者根据WMH负担进行了分层,使用修改后的Fazekas尺度.
  • 使用视觉认知评估测试 (VCAT) 评估全球认知,并使用Simoa平台测量血NfL水平.

主要成果:

  • 在患有MCI的年轻人中,高WMH负担与增加的NfL,较差的认知和更大的周围血管空间相关.
  • 在患有MCI的老年人中,高WMH负担与大脑血管疾病标志物的增加有关,包括血压,周血管空间,缺口性心脏病发作,中间时缩和灰质减少.
  • 与年轻组相比,在较老的MCI组中观察到NfL增加的平原.

结论:

  • 升高的NfL与MCI的东南亚年轻成年人中高WMH负担有关.
  • 在老年人中观察到的NfL增加平原可能表明值效应或神经生物学能力下降.
  • 在东南亚人中,NfL显示为早期检测和预测白质疾病和认知障碍的生物标志物.