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Prostaglandins Other Lipid Mediat ; 172: 106820, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38346573

ABSTRACT

BACKGROUND: Prostaglandin E2 (PGE2) and leukotriene B4 (LTB4) are eicosanoids involved in modulation of the antiviral immune response. Recent studies have identified increased levels of several eicosanoids in the plasma and bronchoalveolar lavage of patients with coronavirus disease (COVID-19). This study investigated correlations between plasma levels of PGE2 and LTB4 and clinical severity of COVID-19. METHODS: This cross-sectional study involved non-infected (n = 10) individuals and COVID-19 patients classified as cured (n = 13), oligosymptomatic (n = 29), severe (n = 15) or deceased (n = 11). Levels of D-dimer a, known COVID-19 severity marker, PGE2 and LTB4 were measured by ELISAs and data were analysed with respect to viral load. RESULTS: PGE2 plasma levels were decreased in COVID-19 patients compared to the non-infected group. Changes in PGE2 and LTB4 levels did not correlate with any particular clinical presentations of COVID-19. However, LTB4 was related to decreased SARS-CoV-2 burden in patients, suggesting that only LTB4 is associated with control of viral load. CONCLUSIONS: Our data indicate that PGE2/LTB4 plasma levels are not associated with COVID-19 clinical severity. Hospitalized patients with COVID-19 are treated with corticosteroids, which may influence the observed eicosanoid imbalance. Additional analyses are required to fully understand the participation of PGE2 receptors in the pathophysiology of COVID-19.


Subject(s)
COVID-19 , Dinoprostone , Leukotriene B4 , SARS-CoV-2 , Viral Load , Humans , COVID-19/blood , COVID-19/virology , COVID-19/immunology , Leukotriene B4/blood , Cross-Sectional Studies , Dinoprostone/blood , Male , Female , Middle Aged , SARS-CoV-2/physiology , Aged , Adult , Severity of Illness Index , Fibrin Fibrinogen Degradation Products/metabolism , Fibrin Fibrinogen Degradation Products/analysis
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