气体分析呼吸
癌症
化学
呼出的空气
环境化学
呼出气冷凝液
色谱法
医学
内科学
生物
毒理
哮喘
作者
Xinyuan Zhou,Manqing Qi,Mingqi Tang,Shifang Wen,Zhenjie Xue,Tie Wang
出处
期刊:Advances in Clinical Chemistry
日期:2024-01-01
标识
DOI:10.1016/bs.acc.2024.06.012
摘要
The detection of volatile organic compounds (VOCs) in breath has become a potential method for early cancer screening. Although this approach has attracted increasing attention from the both scientific and medical communities, it has not received appreciable traction in the clinical setting. There are two main obstacles. One involves the identification of specific biomarkers or combinations thereof especially in early cancer. The other is the lack the specialized equipment for breath analysis having the appropriate sensitivity and specificity. Using metabolomics, this chapter examines the research strategies involving gas biomarkers in cancer patient breath, cancer cell gas metabolites and synthetic biomarkers. We briefly explore gas biomarkers of seven cancers and introduce principles of detection and clinical application. Large analytical instruments and small sensor technology are highlighted. Challenges to VOC analysis are presented including clinical use, extraction and detection, miniaturization efforts and examination of metabolic VOC pathways. Finally, VOCs in cancer and in exhaled breath detection technology are summarized and future prospects explored.
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