Autor: |
Tomeka L. Suber, Stacy G. Wendell, Steven J. Mullett, Benjamin Zuchelkowski, William Bain, Georgios D. Kitsios, Bryan J. McVerry, Prabir Ray, Anuradha Ray, Rama K. Mallampalli, Yingze Zhang, Faraaz Shah, Seyed Mehdi Nouraie, Janet S. Lee |
Jazyk: |
angličtina |
Rok vydání: |
2023 |
Předmět: |
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Zdroj: |
Respiratory Research, Vol 24, Iss 1, Pp 1-16 (2023) |
Druh dokumentu: |
article |
ISSN: |
1465-993X |
DOI: |
10.1186/s12931-023-02447-w |
Popis: |
Abstract Background Fatty acid oxidation (FAO) defects have been implicated in experimental models of acute lung injury and associated with poor outcomes in critical illness. In this study, we examined acylcarnitine profiles and 3-methylhistidine as markers of FAO defects and skeletal muscle catabolism, respectively, in patients with acute respiratory failure. We determined whether these metabolites were associated with host-response ARDS subphenotypes, inflammatory biomarkers, and clinical outcomes in acute respiratory failure. Methods In a nested case–control cohort study, we performed targeted analysis of serum metabolites of patients intubated for airway protection (airway controls), Class 1 (hypoinflammatory), and Class 2 (hyperinflammatory) ARDS patients (N = 50 per group) during early initiation of mechanical ventilation. Relative amounts were quantified by liquid chromatography high resolution mass spectrometry using isotope-labeled standards and analyzed with plasma biomarkers and clinical data. Results Of the acylcarnitines analyzed, octanoylcarnitine levels were twofold increased in Class 2 ARDS relative to Class 1 ARDS or airway controls (P = 0.0004 and |
Databáze: |
Directory of Open Access Journals |
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