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Coronavirus disease 2019 (COVID-19), the illness caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), emerged in late 2019 and spread very quickly across the world. Different responses to infections have been related to fragment crystallizable gamma-receptor II alpha (γ) polymorphisms. The purpose of this investigation was to determine if γ rs1801274 polymorphism was related to COVID-19 mortality among different variants of SARS-CoV-2. The γ rs1801274 polymorphism was genotyped using the polymerase chain reaction-restriction fragment length polymorphism technique in 1,734 recovered and 1,450 deceased patients. Deceased patients had significantly higher minor allele frequency of the γ rs1801274 G allele than in the recovered cases. The COVID-19 mortality was associated with γ rs1801274 GG and AG genotypes in the Delta variant and with γ rs1801274 GG genotypes in the Alpha and Omicron BA.5 variants. The reverse transcription-quantitative polymerase chain reaction Ct values revealed statistically significant differences between individuals with a G allele and those with an A allele. In conclusion, among the several SARS-CoV-2 variants, there may be a correlation between the mortality rate of COVID-19 and the G allele of rs1801274. To confirm our findings, thorough research is still required.
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http://dx.doi.org/10.1089/vim.2023.0091 | DOI Listing |
Curr Issues Mol Biol
June 2025
Laboratory of Immunology, University Hospital of Martinique (CHU Martinique), 97200 Fort de France, France.
Fc gamma receptors (FcγRs) control humoral and cellular immune responses and maintain the immune system balance. Functional polymorphisms of FcγRs, whose prevalence was dependent on ethnic origin, were found to be associated with systemic lupus erythematosus (SLE) or kidney injuries in several ethnic groups. We aimed at investigating the association between the functional single-nucleotide polymorphisms (SNPs) of FcγRIIa-H131R (rs1801274), FcγRIIb-I232T (rs1050501), FcγRIIIa-V158F (rs396991) and FcγRIIIb variants (NA1 and NA2) and lupus erythematosus systemic in an indigenous African Caribbean population.
View Article and Find Full Text PDFFront Pediatr
February 2025
International Research and Innovation in Medicine Program, Cedars-Sinai Medical Center, Los Angeles, CA, United States.
Introduction: Recent studies have underscored the importance of genetic factors in predicting COVID-19 susceptibility and severity. While cytokine storms are crucial in disease severity, genetic predisposition significantly influences immune responses. Our study examined genes related to SARS-CoV-2 invasion ) and interferon-induced immunity ().
View Article and Find Full Text PDFSci Rep
January 2025
Institute of Molecular Biology and Biotechnology (IMBB), The University of Lahore (UOL), Lahore, Pakistan.
Highly variable response shown by individuals against mosquito-borne infections suggests that host genetic factors play an important role in determining mosquito-borne disease onset. Therefore, it is necessary to determine the genetic risk of these diseases in specific populations. The current study aimed to determine the percentage of individuals in the general population carrying mosquito-borne disease susceptibility and protection-related variants.
View Article and Find Full Text PDFMol Biotechnol
June 2025
Department of Oral Restoration and Implantation, First Affiliated Hospital of Xinjiang Medical University/Affiliated Stomatological Hospital, Urumqi, 830054, China.
The purpose of the study is to investigate the relationship of peri-implantitis (PI) with FCGR2A and FCGR3A gene polymorphisms. One hundred and forty-four patients with PI and 136 patients without PI infection were selected. Gingival crevicular fluid samples were collected from the two groups.
View Article and Find Full Text PDFImmunogenetics
June 2024
Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA.
There is tremendous interindividual and interracial variability in the outcome of SARS-CoV-2 infection, suggesting the involvement of host genetic factors. Here, we investigated whether IgG allotypes GM (γ marker) 3 and GM 17, genetic markers of IgG1, contributed to the severity of COVID-19. IgG1 plays a pivotal role in response against SARS-CoV-2 infection.
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