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Polymorphisms of the cytokine genes TGFB1 and IL10 in a mixed-race population with Crohn’s disease
BACKGROUND: Most Crohn’s disease (CD) genes discovered in recent years are associated with biological systems critical to the development of this disease. TGFB1 and IL10 are cytokines with important roles in CD. The aim of this study was to evaluate the association between CD, its clinical features...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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BioMed Central
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3849433/ https://www.ncbi.nlm.nih.gov/pubmed/24074435 http://dx.doi.org/10.1186/1756-0500-6-387 |
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author | Almeida, Neogelia Pereira Santana, Genoile Oliveira Almeida, Tamara Celi Bendicho, Maria Teresita Lemaire, Denise Carneiro Cardeal, Mauricio Lyra, André Castro |
author_facet | Almeida, Neogelia Pereira Santana, Genoile Oliveira Almeida, Tamara Celi Bendicho, Maria Teresita Lemaire, Denise Carneiro Cardeal, Mauricio Lyra, André Castro |
author_sort | Almeida, Neogelia Pereira |
collection | PubMed |
description | BACKGROUND: Most Crohn’s disease (CD) genes discovered in recent years are associated with biological systems critical to the development of this disease. TGFB1 and IL10 are cytokines with important roles in CD. The aim of this study was to evaluate the association between CD, its clinical features and TGFB1 and IL10 gene polymorphisms. METHODS: This case–control study enrolled 91 patients and 91 controls from the state of Bahia, Brazil. Five single nucleotide polymorphisms (SNPs) were studied in the TGFB1 gene (codon 10 T > C - rs1800470; codon 25 G > C - rs1800471) and IL10 gene (−1082 A > G - rs1800896; -819 T > C - rs1800871; -592 A > C - rs1800872). An analysis of the genetic polymorphisms was performed using a commercial kit. A comparison of allele frequencies and genotypes was estimated by calculating the odds ratio (OR) with a confidence interval adjusted via the Bonferroni test for a local alpha of 1%. A stratified analysis was applied for gender, race and smoking history. Patients with CD were characterized according to the Montreal classification. RESULTS: The C allele and CC genotype of the TGFB1 gene rs1800470 were both significantly associated with CD. The stratified analysis showed no confounding factors for the co-variables of gender, race and smoking history. The IL10 gene rs1800896 G allele was significantly associated with age at diagnosis of CD, while the T allele of the IL10 gene rs1800871 was significantly associated with perianal disease. The SNPs rs1800871 and rs1800872 were in 100% linkage disequilibrium. CONCLUSIONS: TGFB1 gene polymorphisms may be associated with susceptibility to the development of CD, and IL10 gene polymorphisms appear to influence the CD phenotype in this admixed population. |
format | Online Article Text |
id | pubmed-3849433 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-38494332013-12-05 Polymorphisms of the cytokine genes TGFB1 and IL10 in a mixed-race population with Crohn’s disease Almeida, Neogelia Pereira Santana, Genoile Oliveira Almeida, Tamara Celi Bendicho, Maria Teresita Lemaire, Denise Carneiro Cardeal, Mauricio Lyra, André Castro BMC Res Notes Research Article BACKGROUND: Most Crohn’s disease (CD) genes discovered in recent years are associated with biological systems critical to the development of this disease. TGFB1 and IL10 are cytokines with important roles in CD. The aim of this study was to evaluate the association between CD, its clinical features and TGFB1 and IL10 gene polymorphisms. METHODS: This case–control study enrolled 91 patients and 91 controls from the state of Bahia, Brazil. Five single nucleotide polymorphisms (SNPs) were studied in the TGFB1 gene (codon 10 T > C - rs1800470; codon 25 G > C - rs1800471) and IL10 gene (−1082 A > G - rs1800896; -819 T > C - rs1800871; -592 A > C - rs1800872). An analysis of the genetic polymorphisms was performed using a commercial kit. A comparison of allele frequencies and genotypes was estimated by calculating the odds ratio (OR) with a confidence interval adjusted via the Bonferroni test for a local alpha of 1%. A stratified analysis was applied for gender, race and smoking history. Patients with CD were characterized according to the Montreal classification. RESULTS: The C allele and CC genotype of the TGFB1 gene rs1800470 were both significantly associated with CD. The stratified analysis showed no confounding factors for the co-variables of gender, race and smoking history. The IL10 gene rs1800896 G allele was significantly associated with age at diagnosis of CD, while the T allele of the IL10 gene rs1800871 was significantly associated with perianal disease. The SNPs rs1800871 and rs1800872 were in 100% linkage disequilibrium. CONCLUSIONS: TGFB1 gene polymorphisms may be associated with susceptibility to the development of CD, and IL10 gene polymorphisms appear to influence the CD phenotype in this admixed population. BioMed Central 2013-09-27 /pmc/articles/PMC3849433/ /pubmed/24074435 http://dx.doi.org/10.1186/1756-0500-6-387 Text en Copyright © 2013 Almeida et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Almeida, Neogelia Pereira Santana, Genoile Oliveira Almeida, Tamara Celi Bendicho, Maria Teresita Lemaire, Denise Carneiro Cardeal, Mauricio Lyra, André Castro Polymorphisms of the cytokine genes TGFB1 and IL10 in a mixed-race population with Crohn’s disease |
title | Polymorphisms of the cytokine genes TGFB1 and IL10 in a mixed-race population with Crohn’s disease |
title_full | Polymorphisms of the cytokine genes TGFB1 and IL10 in a mixed-race population with Crohn’s disease |
title_fullStr | Polymorphisms of the cytokine genes TGFB1 and IL10 in a mixed-race population with Crohn’s disease |
title_full_unstemmed | Polymorphisms of the cytokine genes TGFB1 and IL10 in a mixed-race population with Crohn’s disease |
title_short | Polymorphisms of the cytokine genes TGFB1 and IL10 in a mixed-race population with Crohn’s disease |
title_sort | polymorphisms of the cytokine genes tgfb1 and il10 in a mixed-race population with crohn’s disease |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3849433/ https://www.ncbi.nlm.nih.gov/pubmed/24074435 http://dx.doi.org/10.1186/1756-0500-6-387 |
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