Single nucleotide polymorphisms of the genes encoding IL-10 and TGF-β1 in Iranian children with atopic dermatitis

Behniafard, N. and Amirzargar, A.A. and Gharagozlou, M. and Delavari, F. and Hosseinverdi, S. and Sotoudeh, S. and Farhadi, E. and Mahmoudi, M. and Khaledi, M. and Moghaddam, Z.G. and Aghamohammadi, A. and Rezaei, N. (2018) Single nucleotide polymorphisms of the genes encoding IL-10 and TGF-β1 in Iranian children with atopic dermatitis. Allergologia et Immunopathologia, 46 (2). pp. 155-159.

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Abstract

Background: Atopic dermatitis is an inflammatory skin disease in which both genetic and environmental factors interact to determine the susceptibility and severity of the disease. Objective: The aim of this study was to determine the association between atopic dermatitis and IL-10 and TGF-β1 gene polymorphisms. Methods: The allele and genotype frequencies of genes encoding for IL-10 and TGF-β1 were investigated in 89 patients with atopic dermatitis in comparison with 138 in the control group using the PCR-SSP method. Results: A significant increase was found in the frequency of the TGF-β1 codon 10/C allele among patients (p < 0.001, OR = 6.77), whereas a significant decrease was observed in the frequency of the T allele at the same position (p < 0.001, OR = 0.14). The frequency of the TGF-β1 codon 25/G allele in the control group was significantly higher than among patients (p < 0.001, OR = 0.08). A significant positive correlation was seen between CC (p < 0.001, OR = 15.10) and CG (p < 0.001) genotypes and AD at codons 10 and 25, respectively. The most frequent haplotypes among patients was TGF-β1 CG which was significantly higher than in the control subjects (50 in patients vs. 39.9 in controls, p = 0.042). A significant increase was found in the frequency of TGF-β CC (36 in patients vs. 7.6 in controls, p < 0.001) and TC (14 in patients vs. 0 in controls, p < 0.001) haplotypes among patients compared to controls. By contrast, the TGF-β1 TG haplotype was significantly lower in patients than controls (0 in patients vs. 52.5 in controls, p < 0.001). There were no significant differences in the frequency of alleles, genotypes and haplotypes of the IL-10 gene. Conclusions: We found a strong association between the polymorphisms of the TGF-β1 gene at codon 10 and codon 25 positions and atopic dermatitis. © 2017 SEICAP

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: interleukin 10; transforming growth factor beta1; interleukin 10; transforming growth factor beta1, allele; Article; atopic dermatitis; child; codon; controlled study; female; gene frequency; genetic association; genotype; haplotype; human; Iranian people; major clinical study; male; polymerase chain reaction; single nucleotide polymorphism; atopic dermatitis; genetic association study; genetic predisposition; genetics; infant; Iran; preschool child; single nucleotide polymorphism, Child; Child, Preschool; Dermatitis, Atopic; Female; Gene Frequency; Genetic Association Studies; Genetic Predisposition to Disease; Genotype; Humans; Infant; Interleukin-10; Iran; Male; Polymorphism, Single Nucleotide; Transforming Growth Factor beta1
Subjects: WS Pediatrics
Depositing User: eprints admin
Date Deposited: 16 Dec 2018 11:06
Last Modified: 16 Dec 2018 11:06
URI: http://eprints.iums.ac.ir/id/eprint/6808

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