Association of TNF-α-308G/A gene polymorphism with coronavirus disease-19 severity
Background: From the time when the first outbreak of coronavirus disease (COVID-19), only a small proportion of infected people developed a severe infection, which is usually a sequel of cytokine overproduction. Genetic variations in the genes of some cytokines can influence the transcription rate o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2023-01-01
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| Series: | Medical Journal of Babylon |
| Subjects: | |
| Online Access: | http://www.medjbabylon.org/article.asp?issn=1812-156X;year=2023;volume=20;issue=1;spage=54;epage=58;aulast=Al-Mayah |
| Summary: | Background: From the time when the first outbreak of coronavirus disease (COVID-19), only a small proportion of infected people developed a severe infection, which is usually a sequel of cytokine overproduction. Genetic variations in the genes of some cytokines can influence the transcription rate of these cytokines. Objective: The going research article tried to evaluate the link between tumor necrosis factor (TNF)-α-308 gene polymorphism and COVID-19 severity. Materials and Methods: Blood samples were obtained from 60 patients with COVID-19 and verified by reverse transcriptase polymerase chain reaction (PCR) in nasopharyngeal swabs. Patients were categorized into two categories based on the severity of the disease: severe COVID-19 included 30 patients and mild/moderate COVID-19 with 30 patients. The nucleic DNA was obtained from the whole blood, and TNF-α-308G>A polymorphism was genotyped utilizing PCR-restriction fragment length polymorphism. Results: Homozygous (GG) and heterozygous (GA) genotypes were more frequent among severe than among mild cases, although the differences were not significant. At the allelic level, the frequency of a mutant allele (A) was higher in severe than in mild cases with a noticeable distinction (odds ratio = 2.49, 95% confidence interval = 1.1–5.64, P = 0.029). Conclusion: Allele A of TNF-α-308G>A may be deemed a threat for the severity of COVID-19. |
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| ISSN: | 1812-156X 2312-6760 |