Involvement of oxidative stress in post-acute sequelae of COVID-19: clinical implications.

Oxidative stress (OS) plays a key role in the pathophysiology of COVID-19 and may be associated with sequelae after severe SARS-CoV-2 infection. This study evaluated OS and inflammation biomarkers in blood from individuals with post-acute sequelae of COVID-19 (PASC). 64 male and female participants were distributed into three groups: healthy individuals ( = 20), acute COVID-19 patients (symptoms for <3 weeks, = 15), and PASC patients (symptoms for >12 weeks, = 29).