生物标志物 生物标志物
Pin-Chieh Hsu1, Jia-Ying Yang2, Yuan-Han Yang3,4,5,6
1Kaohsiung Medical University, Kaohsiung, Kaohsiung, Taiwan.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
较高水平的粉样β oligomers (AβO) 与阿尔茨海默病 (AD) 有显著的联系. 这一发现表明AβO可以作为AD查的潜在血液生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物发现发现
- 阿尔茨海默氏症疾病研究研究
背景情况:
- 血氨基酸β oligomers (AβO),氨基酸β的有毒形式,与阿尔茨海默病 (AD) 的发展和进展有关.
- 以前的研究表明,AβO在阿尔茨海默病的发病过程中起着关键作用.
研究的目的:
- 与认知正常的对照组相比,对患有阿尔茨海默病 (AD) 个体的血粉样蛋白β oligomers (AβO) 和相关生物标志物进行研究.
- 为了澄清血AβO水平和AD诊断之间的关联.
主要方法:
- 一项涉及16名AD患者和16名认知正常对照 (NC) 的病例对照研究.
- 使用ELISA套件测量了包括Aβ寡合体 (AβO),Aβ1-40和Aβ1-42在内的血生物标志物.
- 分析了人口统计和临床数据 (年龄,性别,教育,APOE ε4,CDR,MMSE);使用斯皮尔曼相关性来评估关系.
主要成果:
- 与NCs相比,在AD患者中观察到Aβ1-40,Aβ1-42和AβO的平均血度显著更高.
- 血Aβ1-40 (67.4 pg/mL对比21.4 pg/mL,p < 0.001) 和AβO (157.1 pg/mL对比107.3 pg/mL,p = 0.003) 在AD中显著升高.
- Aβ1-40和Aβ1-42/1-40比率与AβO水平显著相关 (分别为p=0.003和p=0.002).
结论:
- 粉样β oligomers (AβO) 的血度升高与阿尔茨海默病 (AD) 有显著的关联.
- 血AβO显示出作为阿尔茨海默病查生物标志物的潜力.
- 需要对更大的队列进行进一步的研究来证实这些发现,并探索AβO的诊断实用性.
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