Metabolomics Diagnosis of COVID-19 from Exhaled Breath Condensate
2021
Elettra Barberis | Elia Amede | Shahzaib Khoso | Luigi Castello | Pier Paolo Sainaghi | Mattia Bellan | Piero Emilio Balbo | Giuseppe Patti | Diego Brustia | Mara Giordano | Roberta Rolla | Annalisa Chiocchetti | Giorgia Romani | Marcello Manfredi | Rosanna Vaschetto
Infection from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can lead to severe respiratory tract damage and acute lung injury. Therefore, it is crucial to study breath-associated biofluids not only to investigate the breath’s biochemical changes caused by SARS-CoV-2 infection, but also to discover potential biomarkers for the development of new diagnostic tools. In the present study, we performed an untargeted metabolomics approach using a bidimensional gas chromatography mass spectrometer (GCxGC-TOFMS) on exhaled breath condensate (EBC) from COVID-19 patients and negative healthy subjects to identify new potential biomarkers for the noninvasive diagnosis and monitoring of the COVID-19 disease. The EBC analysis was further performed in patients with acute or acute-on-chronic cardiopulmonary edema (CPE) to assess the reliability of the identified biomarkers. Our findings demonstrated that an abundance of EBC fatty acids can be used to discriminate COVID-19 patients and that they may have a protective effect, thus suggesting their potential use as a preventive strategy against the infection.
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