4.7 Article

HDL-Related Parameters and COVID-19 Mortality: The Importance of HDL Function

Journal

ANTIOXIDANTS
Volume 12, Issue 11, Pages -

Publisher

MDPI
DOI: 10.3390/antiox12112009

Keywords

COVID-19; HDL; NMR metabolomics; lipoprotein profiling; cholesterol efflux capacity

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This study compares the lipoprotein and metabolic profiles of COVID-19-infected patients and non-COVID-19 pneumonia patients, and finds significant differences in HDL-related parameters between the two groups. The cholesterol efflux capacity (CEC) shows the strongest negative association with COVID-19 mortality.
COVID-19, caused by the SARS-CoV-2 coronavirus, emerged as a global pandemic in late 2019, resulting in significant global public health challenges. The emerging evidence suggests that diminished high-density lipoprotein (HDL) cholesterol levels are associated with the severity of COVID-19, beyond inflammation and oxidative stress. Here, we used nuclear magnetic resonance spectroscopy to compare the lipoprotein and metabolic profiles of COVID-19-infected patients with non-COVID-19 pneumonia. We compared the control group and the COVID-19 group using inflammatory markers to ensure that the differences in lipoprotein levels were due to COVID-19 infection. Our analyses revealed supramolecular phospholipid composite (SPC), phenylalanine, and HDL-related parameters as key discriminators between COVID-19-positive and non-COVID-19 pneumonia patients. More specifically, the levels of HDL parameters, including apolipoprotein A-I (ApoA-I), ApoA-II, HDL cholesterol, and HDL phospholipids, were significantly different. These findings underscore the potential impact of HDL-related factors in patients with COVID-19. Significantly, among the HDL-related metrics, the cholesterol efflux capacity (CEC) displayed the strongest negative association with COVID-19 mortality. CEC is a measure of how well HDL removes cholesterol from cells, which may affect the way SARS-CoV-2 enters cells. In summary, this study validates previously established markers of COVID-19 infection and further highlights the potential significance of HDL functionality in the context of COVID-19 mortality.

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