Violi F; Oliva A; Cangemi R; Ceccarelli G; Pignatelli P; Carnevale R; Cammisotto V; Lichtner M; Alessandri F; De Angelis M; Miele MC; D'Ettorre G; Ruberto F; Venditti M; Pugliese F; Mastroianni CM
Redox Biol 2020[Sep]; 36 (ä): 101655 PMID32738789show ga
Nox2 is responsible for artery dysfunction via production of reactive oxidant species. RNA viruses may activate Nox2, but it is unknown if this occurs in coronavirus 2019(Covid-19). Nox2 activation by soluble Nox2-derived peptide(sNox2-dp) was measured in patients hospitalized for Covid-19 (n = 182) and controls (n = 91). sNox2-dp values were higher in Covid-19 patients versus controls and in severe versus non severe Covid-19. Patients with thrombotic events(n = 35,19%) had higher sNox2-dp than thrombotic event-free ones. A logistic regression analysis showed that sNox2 and coronary heart disease predicted thrombotic events. Oxidative stress by Nox2 activation is associated severe disease and thrombotic events in Covid-19 patients.