ENaC gene variants and their involvement in Covid‑19 severity

Koniari,Eleni; Hatziagapiou,Kyriaki; Nikola,Alexandra Olti; Georgoulia,Konstantina; Marinakis,Nikolaos; Bakakos,Petros; Athanasopoulou,Athanasia; Koromilias,Athanasios; Rovina,Nikoletta; Efthymiou,Vasiliki; Papakonstantinou,Eleni; Vlachakis,Dimitrios; Mavrikou,Sophia; Koutsoukou,Antonia; Traeger‑Synodinos,Joanne; Chrousos,George P.

doi:10.3892/br.2024.1864

ENaC gene variants and their involvement in Covid‑19 severity

Authors:
- Eleni Koniari
- Kyriaki Hatziagapiou
- Alexandra Olti Nikola
- Konstantina Georgoulia
- Nikolaos Marinakis
- Petros Bakakos
- Athanasia Athanasopoulou
- Athanasios Koromilias
- Nikoletta Rovina
- Vasiliki Efthymiou
- Eleni Papakonstantinou
- Dimitrios Vlachakis
- Sophia Mavrikou
- Antonia Koutsoukou
- Joanne Traeger‑Synodinos
- George P. Chrousos
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Affiliations: University Research Institute of Maternal and Child Health and Precision Medicine and UNESCO Chair on Adolescent Health Care, National and Kapodistrian University of Athens, 11527 Athens, Greece, First Department of Pediatrics, National and Kapodistrian University of Athens, ‘Aghia Sophia’ Children's Hospital, 11527 Athens, Greece, Laboratory of Medical Genetics, St. Sophia's Children's Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece, Intensive Care Unit, First Department of Pulmonary Medicine, National and Kapodistrian University of Athens and Sotiria Hospital, 11527 Athens, Greece, Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 10447 Athens, Greece, Faculty of Applied Biology and Biotechnology, Department of Biotechnology, Agricultural University of Athens, 10447 Athens, Greece
Published online on: September 25, 2024 https://doi.org/10.3892/br.2024.1864
Article Number: 176
Copyright: © Koniari et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Epidemiological studies report the association of diverse cardiovascular conditions with coronavirus disease 2019 (COVID‑19), but the causality has remained to be established. Specific genetic factors and the extent to which they can explain variation in susceptibility or severity are largely elusive. The present study aimed to evaluate the link between 32 cardio‑metabolic traits and COVID‑19. A total of 60 participants were enrolled, who were categorized into the following 4 groups: A control group with no COVID‑19 or any other underlying pathologies, a group of patients with a certain form of dyslipidemia and predisposition to atherosclerotic disease, a COVID‑19 group with mild or no symptoms and a COVID‑19 group with severe symptomatology hospitalized at the Intensive Care Unit of Sotiria Hospital (Athens, Greece). Demographic, clinical and laboratory data were recorded and genetic material was isolated, followed by simultaneous analysis of the genes related to dyslipidemia using a custom‑made next‑generation sequencing panel. In the COVID‑19 group with mild or absent symptoms, the variant c.112C>T:p.P38S was detected in the sodium channel epithelial 1 subunit α (SCNN1A) gene, with a major allele frequency (Maf) of <0.01. In the COVID‑19 group with severe symptoms, the variant c.786G>A:p.T262T was detected in the SCNN1B gene, which encodes for the β‑subunit of the epithelial sodium channel ENaC, with a Maf <0.01. None of the two rare variants were detected in the control or dyslipidemia groups. In conclusion, the current study suggests that ENaC variants are likely associated with genetic susceptibility to COVID‑19, supporting the rationale for the risk and protective genetic factors for the morbidity and mortality of COVID‑19.

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