RT Journal Article T1 Inflammation and oxidative stress, the links between obesity and COVID-19: a narrative review. A1 Moreno-Fernandez, Jorge A1 Ochoa, Julio A1 Ojeda, Maria Luisa A1 Nogales, Fatima A1 Carreras, Olimpia A1 Diaz-Castro, Javier K1 Body mass index K1 COVID-19 K1 Immunity K1 Inflammation K1 Nutrition K1 Obesity K1 Oxidative stress AB COVID-19, an acute respiratory disease caused by SARS-CoV-2, has rapidly become a pandemic. On the other hand, obesity is also reaching dramatic dimensions and it is a risk factor for morbidity and premature mortality. Obesity has been linked to a high risk of serious-associated complications to COVID-19, due to the increased risk of concomitant chronic diseases, which highlights the health public relevance of the topic. Obese subjects have a pro-inflammatory environment, which can further exacerbate COVID-19-induced inflammation and oxidative stress, explaining the increased risk of serious complications in these patients. Another factor that favors infection in obese patients is the high expression of ACE2 receptors in the adipose tissue. The negative impact of COVID-19 in obesity is also associated with a decrease in respiratory function, the concurrence of multiple comorbidities, a low-degree chronic inflammatory state, immunocompromised situation, and therefore a higher rate of hospitalization, mechanical ventilation, in-hospital complications such as pneumonia, and death. In this review, the link between obesity and COVID-19 was analyzed, exploring the potential common mechanisms in both diseases, with special attention to oxidative stress and inflammation, due to the crucial role of both pathways in the development of the disease. PB Springer Dordrecht YR 2022 FD 2022-03-03 LK http://hdl.handle.net/10668/21341 UL http://hdl.handle.net/10668/21341 LA en NO Moreno-Fernandez J, Ochoa J, Ojeda ML, Nogales F, Carreras O, Díaz-Castro J. Inflammation and oxidative stress, the links between obesity and COVID-19: a narrative review. J Physiol Biochem. 2022 Aug;78(3):581-591. DS RISalud RD Apr 18, 2025