生物标志物 生物标志物
Sitong Zhou1, Nopparat Suthprasertporn2, Danielle J Harvey3
1University of California Davis Medical Center, Sacramento, CA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
概括
这项研究量化了有风险的美国人的基线血生物标志物,揭示了显著的性别和种族/种族差异. 这些发现对于理解血管痴呆症进展和未来纵向分析至关重要.
科学领域:
- 神经学 神经学
- 生物标志物研究 生物标志物研究
- 神经退行性疾病 神经退行性疾病
背景情况:
- 该DVCID项目旨在招募2250名美国人参加综合性研究.
- 它整合了认知评估,基于血液的分析和神经成像.
- 基线生物标志物概况对于纵向研究目标至关重要.
研究的目的:
- 在多样化的队列中量化基线血生物标记度.
- 检查这些生物标志物的性别和种族/种族差异.
- 建立血管痴呆症研究中纵向分析的基础.
主要方法:
- 采集并按照标准化协议处理的血液样本.
- 使用Quanterix Simoa HD-XTM 分析仪测量的等离子体生物标志物.
- 量化粉样蛋白β 40 (Aβ40),Aβ42,GFAP,NfL,t-Tau,和pTau181.1. 这些都是粉样蛋白β 40 (Aβ40),Aβ42,GFAP,NfL,t-Tau和pTau181.
主要成果:
- 636名参与者报告了六个关键血生物标志物的基线度.
- 在GFAP,pTau181和t-Tau水平中观察到显著的性别差异.
- 血生物标志物度在种族/族群之间有显著差异.
结论:
- 结果为未来的后续研究提供了坚实的基础.
- 性别和种族/民族差异凸显了人口因素在生物标志物解释中的重要性.
- 未来的研究应该探讨对临床因素进行调整的生物学影响.
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