期刊
METABOLITES
卷 12, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/metabo12111058
关键词
COVID-19; non-COVID-19 pneumonia; metabolomics; metabolic profiling; multivariate statistics; machine learning; plasma; mass spectrometry; community-acquired pneumonia; system biology
This study aims to compare the blood metabolome of COVID-19 pneumonia and non-COVID-19 pneumonia, revealing specific metabolic changes in the two pneumonia groups. The results indicate significant differences in blood metabolism between COVID-19 pneumonia and non-COVID-19 pneumonia.
Pneumonia is a common cause of morbidity and mortality and is most often caused by bacterial pathogens. COVID-19 is characterized by lung infection with potential progressive organ failure. The systemic consequences of both disease on the systemic blood metabolome are not fully understood. The aim of this study was to compare the blood metabolome of both diseases and we hypothesize that plasma metabolomics may help to identify the systemic effects of these diseases. Therefore, we profiled the plasma metabolome of 43 cases of COVID-19 pneumonia, 23 cases of non-COVID-19 pneumonia, and 26 controls using a non-targeted approach. Metabolic alterations differentiating the three groups were detected, with specific metabolic changes distinguishing the two types of pneumonia groups. A comparison of venous and arterial blood plasma samples from the same subjects revealed the distinct metabolic effects of pulmonary pneumonia. In addition, a machine learning signature of four metabolites was predictive of the disease outcome of COVID-19 subjects with an area under the curve (AUC) of 86 +/- 10%. Overall, the results of this study uncover systemic metabolic changes that could be linked to the etiology of COVID-19 pneumonia and non-COVID-19 pneumonia.
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