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• W4328115546 abstract "Introduction The metabolomic changes caused by airborne fine particulate matter (PM 2.5 ) exposure in patients with chronic obstructive pulmonary disease (COPD) remain unclear. The aim of this study was to determine whether it is possible to predict PM 2.5 -induced acute exacerbation of COPD (AECOPD) using metabolic markers. Methods Thirty-eight patients with COPD diagnosed by the 2018 Global Initiative for Obstructive Lung Disease were selected and divided into high exposure and low exposure groups. Questionnaire data, clinical data, and peripheral blood data were collected from the patients. Targeted metabolomics using liquid chromatography-tandem mass spectrometry was performed on the plasma samples to investigate the metabolic differences between the two groups and its correlation with the risk of acute exacerbation. Results Metabolomic analysis identified 311 metabolites in the plasma of patients with COPD, among which 21 metabolites showed significant changes between the two groups, involving seven pathways, including glycerophospholipid, alanine, aspartate, and glutamate metabolism. Among the 21 metabolites, arginine and glycochenodeoxycholic acid were positively associated with AECOPD during the three months of follow-up, with an area under the curve of 72.50% and 67.14%, respectively. Discussion PM 2.5 exposure can lead to changes in multiple metabolic pathways that contribute to the development of AECOPD, and arginine is a bridge between PM 2.5 exposure and AECOPD." @default.
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• W4328115546 date "2023-03-21" @default.
• W4328115546 modified "2023-10-12" @default.
• W4328115546 title "Outdoor particulate matter exposure affects metabolome in chronic obstructive pulmonary disease: Preliminary study" @default.
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• W4328115546 doi "https://doi.org/10.3389/fpubh.2023.1069906" @default.
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