呼出的呼吸生物标志物反映了缺血性心脏病中的炎症和脂质组变化:使用机器学习模型和网络分析的研究
Basheer Abdullah Marzoog1, Peter Chomakhidze1, Daria Gognieva1
1World-Class Research Center, Digital Biodesign and Personalized Healthcare, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.
Journal of lipid and atherosclerosis
|October 6, 2025
概括
呼出的挥发性有机化合物 (VOC) 与缺血性心脏病 (IHD) 中的脂质变化相关. 呼吸分析与脂质和炎症组数据相结合,为IHD诊断提供了一个高度准确,非侵入性的方法.
科学领域:
- 心脏病学 心脏病学
- 生物化学 生物化学
- 数据科学数据科学数据科学
背景情况:
- 缺血性心脏病 (IHD) 的诊断依赖于侵入性手术.
- 在IHD中,了解脂管学,炎症体通路和呼出的挥发性有机化合物 (VOC) 之间的相互作用对于开发非侵入性诊断工具至关重要.
研究的目的:
- 研究IHD患者的脂质样本,炎症体生物标志物和呼出的VOC之间的关系.
- 开发和验证一个机器学习模型,使用VOC用于IHD的非侵入性诊断.
主要方法:
- 一项针对80名参与者 (31名IHD,49名对照) 的前性研究,使用压力CT输液和自行车人体工程学.
- 通过PTR-TOF-MS分析休息,运动高峰和恢复时收集的呼吸样本.
- 测量了脂质组 (总胆固醇,HDL-C,LDL-C,甘油三,ApoB,Lp(a)) 和炎症酶标记物 (IL-6,CRP).
- 拉索回归确定了VOC生物标志物协会;XGBoost分类器整合了VOC,脂质组,炎症组和治疗状态.
主要成果:
- 在IHD患者中观察到特定的VOCs和脂质配置文件 (例如HDL-C,总胆固醇) 之间的显著相关性.
- 区分IHD的关键VOC包括2-乙基-2,5-二-4,5-二甲基thiazole,HO3PS2,CH8N3P,以及m/z 49.995.5.
- 一个XGBoost模型实现了0.931的AUC,具有完美的特异性 (1,000) 和PPV (1,000),证明了高诊断准确度.
结论:
- 呼出的VOC模式表明IBH中的脂质调节失调.
- 将VOC与脂质和炎症数据相结合,可以实现准确,非侵入性的IHD诊断.
- 呼吸分析 (呼吸学) 显示为诊断IHD的有价值的辅助.
相关概念视频
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
794
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...
794
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
538
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...
538


