Journal Article

Occurrence of SARS-CoV-2 viremia is associated with genetic variants of genes related to COVID-19 pathogenesis

Villapalos García, Gonzalo, Zurita-Cruz, Nelly, Lamana, Amalia, Ciudad, Marianela, Muñoz-Calleja, Cecilia, Montes, Nuria, Cardeñoso, Laura, Marcos, Celeste, Díaz-Fernández, Paula, Suárez Fernández, Carmen, Rodríguez, Jesús Álvarez, Roy-Vallejo, Emilia, Triguero-Martínez, Ana, de los Santos, Ignacio, Fernández De Córdoba-Oñate, Sara, García-Vicuña, Rosario, Fernández-Ruiz, Elena, Abad, Francisco, Villa, Almudena, Rodríguez Serrano, Diego A., Carracedo-Rodríguez, Rosa, Rabes, Laura, Zubiaur, Pablo, Marcos-Jiménez, Ana, Galván-Román, José María, González-Álvaro, Isidoro, Sanz, Marta, Rodríguez, Carlos, Hernando, Julia, P. Gomariz, Rosa, Delgado-Wicke, Pablo

2023

Overview

SARS-CoV-2 viral load has been related to COVID-19 severity. The main aim of this study was to evaluate the relationship between SARS-CoV-2 viremia and SNPs in genes previously studied by our group as predictors of COVID-19 severity. Retrospective observational study including 340 patients hospitalized for COVID-19 in the University Hospital La Princesa between March 2020 and December 2021, with at least one viremia determination. Positive viremia was considered when viral load was above the quantifiable threshold (20 copies/ml). A total of 38 SNPs were genotyped. To study their association with viremia a multivariate logistic regression was performed. The mean age of the studied population was 64.5 years (SD 16.6), 60.9% patients were male and 79.4% white non-Hispanic. Only 126 patients (37.1%) had at least one positive viremia. After adjustment by confounders, the presence of the minor alleles of rs2071746 ( ; T/T genotype OR 9.9  < 0.0001), rs78958998 (probably associated with expression; A/T genotype OR 2.3,  = 0.04 and T/T genotype OR 12.9,  < 0.0001), and rs713400 (eQTL for ; C/T + T/T genotype OR 1.86,  = 0.10) were associated with higher risk of viremia, whereas the minor alleles of rs11052877 ( ; A/G genotype OR 0.5, p = 0.04 and G/G genotype OR 0.3,  = 0.01), rs2660 ( ; A/G genotype OR 0.6,  = 0.08), rs896 ( ; T/T genotype OR 0.4,  = 0.02) and rs33980500 ( ; C/T + T/T genotype OR 0.3,  = 0.01) were associated with lower risk of viremia. Genetic variants in (rs2071746), (rs78958998), (rs713400), (rs11052877), (rs33980500), (rs2660) and (rs896) could explain heterogeneity in SARS-CoV-2 viremia in our population.

• Publisher: Frontiers Media SA,Frontiers Media S.A
• Subject: Biomarkers / COVID-19 / genetic variants / Genotype & phenotype / Hospitalization / Infections / Medicine / Pandemics / Pathogenesis / Polymorphism / Regression analysis / SARS-CoV-2 / Severe acute respiratory syndrome coronavirus 2 / single nucleotide polymorphism (SNPs) / Software / Statistical analysis / Variables / viremia