Liliia Fishchuk1, Zoia Rossokha1, Valeriy Pokhylko2, Yuliia Cherniavska2, Svitlana Tsvirenko2, Serhii Kovtun3, Nataliia Medvedieva1, Viktoriia Vershyhora1, Nataliia Gorovenko4. 1. State Institution "Reference-Centre for Molecular Diagnostic of Public Health Ministry of Ukraine", Kyiv, Ukraine. 2. Department of Pediatrics № 1 with Propedeutics and Neonatology, Ukrainian Medical Stomatological Academy, Poltava, Ukraine. 3. Poltava Regional Clinical Infectious Diseases Hospital of Poltava Regional Council, Poltava, Ukraine. 4. Department of Medical and Laboratory Genetics, Shupyk National Healthcare University of Ukraine, Kyiv, Ukraine.
Abstract
OBJECTIVES: COVID-19 continues to range around the world and set morbidity and mortality antirecords. Determining the role of genetic factors in the development of COVID-19 may contribute to the understanding of the pathogenetic mechanisms that lead to the development of complications and fatalities in this disease. The aim of our study was to analyze the effect of TNF-α (rs1800629), IL-6 (rs1800795) and VDR (rs731236 and rs1544410) genes variants on the development risk and the course of COVID-19 in intensive care patients. METHODS: The study group included 31 patients with diagnosis "viral COVID-19 pneumonia". All patients underwent standard daily repeated clinical, instrumental and laboratory examinations. Determination of IL-6, TNF-α, and VDR genes variants was performed using the PCR-RFLP method. RESULTS: It was found a significant increase in the rate of the CC genotype and C allele (38.7 vs. 12.0% and 0.6 vs. 0.4%, respectively) of the IL-6 gene in all patients of the study in comparison with population frequencies. There was a significantly higher rate of heterozygous genotypes TC and GA of the VDR gene in group of died patients. The rs1800629 variant of the TNF-α gene is associated with the need for respiratory support and its longer duration in patients with COVID-19. CONCLUSIONS: The obtained results support a hypothesis about the influence of variants of IL-6, TNF-α and VDR genes on severity of COVID-19. However, in order to draw definite conclusions, further multifaceted research in this area are need.
OBJECTIVES: COVID-19 continues to range around the world and set morbidity and mortality antirecords. Determining the role of genetic factors in the development of COVID-19 may contribute to the understanding of the pathogenetic mechanisms that lead to the development of complications and fatalities in this disease. The aim of our study was to analyze the effect of TNF-α (rs1800629), IL-6 (rs1800795) and VDR (rs731236 and rs1544410) genes variants on the development risk and the course of COVID-19 in intensive care patients. METHODS: The study group included 31 patients with diagnosis "viral COVID-19 pneumonia". All patients underwent standard daily repeated clinical, instrumental and laboratory examinations. Determination of IL-6, TNF-α, and VDR genes variants was performed using the PCR-RFLP method. RESULTS: It was found a significant increase in the rate of the CC genotype and C allele (38.7 vs. 12.0% and 0.6 vs. 0.4%, respectively) of the IL-6 gene in all patients of the study in comparison with population frequencies. There was a significantly higher rate of heterozygous genotypes TC and GA of the VDR gene in group of died patients. The rs1800629 variant of the TNF-α gene is associated with the need for respiratory support and its longer duration in patients with COVID-19. CONCLUSIONS: The obtained results support a hypothesis about the influence of variants of IL-6, TNF-α and VDR genes on severity of COVID-19. However, in order to draw definite conclusions, further multifaceted research in this area are need.
Authors: João Locke Ferreira de Araújo; Diego Menezes; Renato Santana de Aguiar; Renan Pedra de Souza Journal: Front Genet Date: 2022-04-01 Impact factor: 4.599