生物标志物 生物标志物
Khalid Saifullah1, Gulam Mahfuz Chowdhury1, Arnold M Evia2
1Illinois Institute of Technology, Chicago, IL, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
神经纤维光链 (NfL) 与老年人的神经退行和白质超强度 (WMH) 有关. 血管病理,由WMH表示,介导NfL和神经退行之间的关系.
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
- 衰老研究研究 衰老研究
背景情况:
- 神经纤维光链 (NfL) 是神经退行症的一个有前途的血液生物标志物.
- 在非痴呆老年人中,NfL,白质过强度 (WMH) 和神经退行症之间的关系尚未完全理解.
- 这项研究调查了NfL,WMH和神经退行症之间的相互作用,重点关注血管病理的调解作用.
研究的目的:
- 为了澄清NfL水平和老年人的神经退行症之间的关联.
- 检查NfL和WMH之间的关系,这是小血管疾病的标志物.
- 确定WMH是否调解了NfL和神经退行症之间的联系.
主要方法:
- 从202名没有痴呆症的老年人血液样本中分析NfL水平.
- 使用基于变形的形态测量 (DBM) 来通过MRI的日志雅科比 (LogJ) 地图来测量神经退行.
- 沃克塞尔智能线性回归评估了NfL,WMH和LogJ之间的关联,并调整了共变量.
主要成果:
- NfL水平与神经退行和心室扩大相关.
- 在NfL水平和WMH负担之间发现了显著的积极关联.
- WMH负担与神经退行症密切相关,并调解了NfL-神经退行症关联.
结论:
- NfL作为一个生物标志物,用于神经退行和血管方面的大脑衰老.
- 血管病理,特别是WMH,在驱动神经退行方面发挥着关键作用.
- 研究结果强调了在神经退行研究中考虑血管因素的重要性.
相关概念视频
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
749
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...
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...
749
01:19Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
516
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...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
516