一个基于血的蛋白质签名与所有原因的死亡率相关联
Natalia Koziar1, Anthony D Whetton1,2, Nophar Geifman3
1School of Biosciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom.
PloS one
|November 21, 2025
概括
血蛋白质配置文件可以预测死亡风险. 这项研究确定了与英国生物库参与者的5年和10年全因死亡风险增加相关的特定蛋白质,改进了风险预测模型.
科学领域:
- 蛋白质组学和分子生物学
- 流行病学和公共卫生.
- 生物标志物发现发现
背景情况:
- 流通的血蛋白是健康和疾病状态的关键指标.
- 先进的蛋白质计量技术可以在单个样本中量化超过2900种蛋白质.
- 大规模的流行病学研究利用液体活检中的蛋白质组数据来了解死亡率和发病率.
研究的目的:
- 调查外围血液蛋白质概况与5年至10年期间所有原因的非意外死亡率之间的关联.
- 识别与特定原因死亡 (心血管,癌症,其他原因) 相关的蛋白质特征.
- 开发和评估预测性蛋白质面板,用于所有死因死亡风险分层.
主要方法:
- 分析了来自38150名英国生物库参与者的血蛋白质概况.
- 后勤回归建模以识别与死亡风险相关的蛋白质,调整共变量.
- 使用蛋白质面板与传统风险因素构建和比较预测模型.
主要成果:
- 确定了392种与增加5年死亡风险相关的蛋白质和377种与增加10年死亡风险相关的蛋白质.
- 发现了因特定原因死亡的蛋白质特征,其中有19种重叠的蛋白质.
- 与传统模型 (AUC 0.49-0.57) 相比,开发了节的蛋白质面板,可以轻微改善5年和10年死亡率的预测 (AUC 0.62-0.68).
结论:
- 血蛋白质组具有显著的潜在风险分层所有原因死亡的风险分层.
- 基于蛋白质的预测模型比传统的风险标准提供了更好的准确性.
- 这项研究强调了大规模蛋白质组数据在理解和预测死亡率方面的实用性.
相关概念视频
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
769
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...
769
01:29Drug Distribution: Plasma Protein Binding
8.3K
Drugs predominantly attach to plasma proteins, with only a small percentage remaining unbound. The unbound portion can be calculated as one minus the bound fraction. Acidic drugs form large, inactive complexes by reversibly binding to plasma albumin, which prevents them from diffusing across biological barriers. These drug-protein complexes act as reservoirs for the drugs. As the concentration of unbound drugs decreases, these complexes quickly dissociate to release the free drug, maintaining...
8.3K
01:29Factors Affecting Protein-Drug Binding: Patient-Related Factors
291
Protein-drug binding, a pivotal aspect of pharmacokinetics, is subject to considerable variability influenced by an array of patient-related factors. The intricate interplay of age, individual differences, and pathological conditions significantly impact the binding dynamics and subsequent pharmacological effects.
Age stands as a key determinant in protein-drug binding. Neonates, characterized by low albumin content, experience heightened concentrations of unbound drugs such as phenytoin and...
Age stands as a key determinant in protein-drug binding. Neonates, characterized by low albumin content, experience heightened concentrations of unbound drugs such as phenytoin and...
291