RT info:eu-repo/semantics/article T1 Can the Cytokine Profile According to ABO Blood Groups Be Related to Worse Outcome in COVID-19 Patients? Yes, They Can A1 Tamayo Velasco, Álvaro A1 Peñarrubia Ponce, María Jesús A1 Álvarez González, Francisco Javier A1 Gonzalo Benito, Hugo A1 Fuente, Ignacio de la A1 Pérez González, Sonia A1 Rico, Lucía A1 Jiménez García, María Teresa A1 Sánchez Rodríguez, Alba A1 Hijas Villaizán, Milagros A1 Martín Fernández, Marta A1 Dueñas, Carlos A1 Gómez Sánchez, Esther A1 Heredia Rodríguez, María A1 Gorgojo Galindo, Óscar A1 Fernández Martínez, Itziar A1 Río Sola, María Lourdes del A1 Carnicero Frutos, Irene A1 Muñoz Moreno, María Fe A1 Tamayo Gómez, Eduardo A1 Bernardo Ordiz, David A1 Martínez de Paz, Pedro José K1 COVID-19 (Enfermedad) K1 Cytokines K1 Citoquinas K1 Mortality K1 Mortalidad AB Severe status of coronavirus disease 2019 (COVID-19) is extremely associated to cytokine release. Moreover, it has been suggested that blood group is also associated with the prevalence and severity of this disease. However, the relationship between the cytokine profile and blood group remains unclear in COVID-19 patients. In this sense, we prospectively recruited 108 COVID-19 patients between March and April 2020 and divided according to ABO blood group. For the analysis of 45 cytokines, plasma samples were collected in the time of admission to hospital ward or intensive care unit and at the sixth day after hospital admission. The results show that there was a risk of more than two times lower of mechanical ventilation or death in patients with blood group O (log rank: p = 0.042). At first time, all statistically significant cytokine levels, except from hepatocyte growth factor, were higher in O blood group patients meanwhile the second time showed a significant drop, between 20% and 40%. In contrast, A/B/AB group presented a maintenance of cytokine levels during time. Hepatocyte growth factor showed a significant association with intubation or mortality risk in non-O blood group patients (OR: 4.229, 95% CI (2.064–8.665), p < 0.001) and also was the only one bad prognosis biomarker in O blood group patients (OR: 8.852, 95% CI (1.540–50.878), p = 0.015). Therefore, higher cytokine levels in O blood group are associated with a better outcome than A/B/AB group in COVID-19 patients. PB Frontiers SN 1664-3224 YR 2021 FD 2021 LK https://uvadoc.uva.es/handle/10324/51578 UL https://uvadoc.uva.es/handle/10324/51578 LA eng NO Frontiers in Immunology, 2021, vol. 12, 726283 NO Producción Científica DS UVaDOC RD 11-jul-2024