生物标志物 生物标志物
Sofia Toniolo1, Sijia Zhao1, John Broulidakis1
1University of Oxford, Oxford, United Kingdom.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
数字认知测试和血生物标志物在诊断阿尔茨海默病 (AD) 中表现有前途. 将这些方法结合起来可以提高AD痴呆症检测和分层在记忆诊所人群中的精度.
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
- 数字健康数字健康
背景情况:
- 血生物标志物可以在认知症状出现之前检测出阿尔茨海默病 (AD).
- 认知功能测量对于人口查,疾病监测和治疗反应评估至关重要.
- 现有的数字认知测试平台缺乏敏感性和特异性的数据来区分痴呆症类型.
研究的目的:
- 评估远程在线认知评估工具 (OCTAL) 在区分不同形式的痴呆症的敏感性和特异性.
- 评估血pTau217和数字生物标志物的诊断准确性,单独或组合,用于阿尔茨海默病的检测.
主要方法:
- 招募了391名患有各种认知疾病的参与者 (包括主观认知衰退,轻度认知障碍,AD痴呆症,勒维体病,皮质基底综合征,前性痴呆症) 和201名对照者.
- 参与者完成了远程在线认知评估 (OCTAL),包括牛津记忆测试 (OMT) 和Trail Making Test (TMT).
- 测量了血pTau217水平,并比较了血生物标志物,数字生物标志物及其组合之间的诊断准确性.
主要成果:
- 奥克塔尔指标区分了各种痴呆症阶段和类型.
- 与对照组相比,在轻度认知障碍和其他痴呆症中,OMT的识别准确度较低.
- 与pTau217单独相比,将血pTau217与数字生物标志物结合起来,显著提高了阿尔茨海默病痴呆症的诊断准确性.
结论:
- 在记忆诊所中,OCTAL平台展示了敏感和特定患者分层的潜力.
- 将血生物标志物与数字认知测试相结合,可以提高AD的诊断准确性.
- 这个远程平台提供了一个可扩展的解决方案,用于查,分层和监测患有AD和其他痴呆症的患者.
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