Background: Toll-like receptors (TLRs) play an important role in activation of innate and adaptive immune responses.
Aim: We aimed to detect the association between TLR2 rs5743708 G>A and TLR9 rs5743836 C>T variants and COVID-19 disease susceptibility, severity, and thrombosis by using neutrophil extracellular traps (NETs).
Subjects And Methods: We included 100 adult COVID-19 patients as well as 100 age- and gender-matched normal controls. Participants were genotyped for TLR2 rs5743708 and TLR9 rs5743836. Citrullinated Histone (H3) was detected as an indicator of NETs.
Results: The mutant (G/A and C/C) genotypes and (A and C) alleles of TLR2 rs5743708 and TLR9 rs5743836, respectively, have been significantly related to a higher risk of COVID-19 infection, representing a significant risk factor for the severity of COVID-19. There was no significant association between the two variants and citrullinated histone (H3).
Conclusion: TLR2 rs5743708 and TLR9 rs5743836 variants have been significantly related to a higher risk and severity of COVID-19 infection but had no effect on thrombus formation.
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http://dx.doi.org/10.2147/JIR.S394927 | DOI Listing |
Exp Parasitol
December 2024
Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK.
Cutaneous leishmaniasis (CL), a zoonotic and neglected disease, is prevalent in numerous regions, particularly in tropical and sub-tropical countries. In Iran, endemic foci of leishmaniasis exist in specific regions, with zoonotic cutaneous leishmaniasis (ZCL) caused by Leishmania major being common in most rural areas. Toll-like receptors (TLRs) play a crucial role in both innate and adaptive immunities, and the investigation of TLR2 rs5743708 and TLR4 (rs4986790 and rs4986791) polymorphisms in parasitic diseases can have significant implications for patient treatment.
View Article and Find Full Text PDFThe purpose of this study was to determine the contribution of genetic factors, i.e., the level of expression and polymorphisms of Toll-like receptors (TLR), to the susceptibility of latent tuberculosis infection in a Russian cohort of individuals infected with HIV.
View Article and Find Full Text PDFInt J Mol Sci
June 2024
Department of Studies in Anthropogenetics and Biogerontology, Pomeranian Medical University in Szczecin, Żołnierska 48, 71-210 Szczecin, Poland.
The aim of the present study was to analyze the association of the (Toll-like receptor 2 gene) 2258G>A (rs5743708), (Toll-like receptor 4 gene) 896A>G (rs4986790), and 1196C>T (rs4986791) polymorphisms with dental caries in Polish children. The participants, 261 15-year-old children, were divided into two groups: 82 cases (i.e.
View Article and Find Full Text PDFEgypt J Immunol
July 2024
Department of Community and Occupational Medicine, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt.
Pediatric pneumonia is a common respiratory infection that affects children and is thought to be a major source of mortality and morbidity worldwide, particularly in low- and middle-income nations. Toll-like receptor2 (TLR2) is an important receptor involved in the recognition of bacterial pathogens and the activation of the immune response. Genetic variability in TLR2 may partially explain individual differences in susceptibility to infections.
View Article and Find Full Text PDFInt J Immunogenet
August 2024
Institute of Biomedicine, Research Center of Infections and Immunity, University of Turku, Turku, Finland.
Toll-like receptors (TLRs) play an important role in innate immunity. Previous studies have shown that single nucleotide polymorphisms (SNPs) in the genes coding for these innate immune molecules can affect susceptibility to and the outcome of certain diseases. The aim of the present study was to examine the clinical relevance of well-studied TLR1-4 SNPs in individuals who are prone to infections.
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