• Gene · Dec 2020

    Angiotensin-converting enzymes (ACE, ACE2) gene variants and COVID-19 outcome.

    • Juan Gómez, Guillermo M Albaiceta, Marta García-Clemente, Carlos López-Larrea, Laura Amado-Rodríguez, Inés Lopez-Alonso, Tamara Hermida, Ana I Enriquez, Pablo Herrero, Santiago Melón, Marta E Alvarez-Argüelles, José A Boga, Susana Rojo-Alba, Elías Cuesta-Llavona, Victoria Alvarez, Rebeca Lorca, and Eliecer Coto.
    • Genética Molecular, Hospital Universitario Central Asturias, Oviedo, Spain; Instituto de Investigación Sanitaria del Principado deAsturias, ISPA, Oviedo, Spain; Red de Investigación Renal (REDINREN), Madrid, Spain.
    • Gene. 2020 Dec 15; 762: 145102.

    AbstractThe Angiotensin system is implicated in the pathogenesis of COVID-19. First, ACE2 is the cellular receptor for SARS-CoV-2, and expression of the ACE2 gene could regulate the individuaĺs susceptibility to infection. In addition, the balance between ACE1 and ACE2 activity has been implicated in the pathogenesis of respiratory diseases and could play a role in the severity of COVID-19. Functional ACE1/ACE2 gene polymorphisms have been associated with the risk of cardiovascular and pulmonary diseases, and could thus also contribute to the outcome of COVID-19. We studied 204 COVID-19 patients (137 non-severe and 67 severe-ICU cases) and 536 age-matched controls. The ACE1 insertion/deletion and ACE2 rs2285666 polymorphism were determined. Variables frequencies were compared between the groups by logistic regression. We also sequenced the ACE2 coding nucleotides in a group of patients. Severe COVID-19 was associated with hypertension male gender (p < 0.001), hypertension (p = 0.006), hypercholesterolaemia (p = 0.046), and the ACE1-DD genotype (p = 0.049). In the multiple logistic regression hypertension (p = 0.02, OR = 2.26, 95%CI = 1.12-4.63) and male gender (p = 0.002; OR = 3.15, 95%CI = 1.56-6.66) remained as independent significant predictors of severity. The ACE2 polymorphism was not associated with the disease outcome. The ACE2 sequencing showed no coding sequence variants that could explain an increased risk of developing COVID-19. In conclusion, an adverse outcome of COVID-19 was associated with male gender, hypertension, hypercholesterolemia and the ACE1 genotype. Our work suggested that the ACE1-I/D might influence COVID-19 severity, but the effect was dependent on the hypertensive status. This result requires further validation in other large cohorts.Copyright © 2020 Elsevier B.V. All rights reserved.

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