IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individuals

ABSTRACT Objective This study aimed to investigate the association of plasma TNF-α, IL-6, and lL-10 levels and cytokine gene polymorphisms [TNF-α (-308 G→A), IL-6 (-174 C→G) and IL-10 (-1082 A→G, -819 T→C and -592 A→C)] in type 2 diabetes mellitus (T2DM) and obese patients. Subjects and methods...

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Main Authors: Kathryna Fontana Rodrigues, Nathalia Teixeira Pietrani, Adriana Aparecida Bosco, Fernanda Magalhães Freire Campos, Valéria Cristina Sandrim, Karina Braga Gomes
Format: Article
Language:English
Published: Brazilian Society of Endocrinology and Metabolism 2017-02-01
Series:Archives of Endocrinology and Metabolism
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2359-39972017000500438&lng=en&tlng=en
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author Kathryna Fontana Rodrigues
Nathalia Teixeira Pietrani
Adriana Aparecida Bosco
Fernanda Magalhães Freire Campos
Valéria Cristina Sandrim
Karina Braga Gomes
author_facet Kathryna Fontana Rodrigues
Nathalia Teixeira Pietrani
Adriana Aparecida Bosco
Fernanda Magalhães Freire Campos
Valéria Cristina Sandrim
Karina Braga Gomes
author_sort Kathryna Fontana Rodrigues
collection DOAJ
description ABSTRACT Objective This study aimed to investigate the association of plasma TNF-α, IL-6, and lL-10 levels and cytokine gene polymorphisms [TNF-α (-308 G→A), IL-6 (-174 C→G) and IL-10 (-1082 A→G, -819 T→C and -592 A→C)] in type 2 diabetes mellitus (T2DM) and obese patients. Subjects and methods One hundred and two T2DM patients and 62 controls were included in this study. Cytokine plasma levels were measured by the Cytometric Bead Array method. Genotyping was carried out by the polymerase chain reaction. Results IL-6 levels were significantly different between T2DM patients and controls. Interestingly, IL-6 levels were higher in T2DM patients with BMI > 30 kg/m2 compared with other patients and obese controls. The genotype and allele frequencies were similar between patients and controls. In the T2DM group, the SNP IL-10 -819 T/C showed a difference between the cytokine level and genotypes: IL-10 level in the TT genotype was significantly higher when compared to CC genotype. Conclusions These results suggest an association between IL-6 levels and obesity, and IL-10 levels and the SNP -819 T/C in T2DM. Knowledge of these variants in T2DM might contribute to a better understanding of the role of inflammation in the etiology and progression of this disease.
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spelling doaj.art-f6992201b69749f3bd46ecee48854db82022-12-22T00:30:41ZengBrazilian Society of Endocrinology and MetabolismArchives of Endocrinology and Metabolism2359-42922017-02-0161543844610.1590/2359-3997000000254S2359-39972017000500438IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individualsKathryna Fontana RodriguesNathalia Teixeira PietraniAdriana Aparecida BoscoFernanda Magalhães Freire CamposValéria Cristina SandrimKarina Braga GomesABSTRACT Objective This study aimed to investigate the association of plasma TNF-α, IL-6, and lL-10 levels and cytokine gene polymorphisms [TNF-α (-308 G→A), IL-6 (-174 C→G) and IL-10 (-1082 A→G, -819 T→C and -592 A→C)] in type 2 diabetes mellitus (T2DM) and obese patients. Subjects and methods One hundred and two T2DM patients and 62 controls were included in this study. Cytokine plasma levels were measured by the Cytometric Bead Array method. Genotyping was carried out by the polymerase chain reaction. Results IL-6 levels were significantly different between T2DM patients and controls. Interestingly, IL-6 levels were higher in T2DM patients with BMI > 30 kg/m2 compared with other patients and obese controls. The genotype and allele frequencies were similar between patients and controls. In the T2DM group, the SNP IL-10 -819 T/C showed a difference between the cytokine level and genotypes: IL-10 level in the TT genotype was significantly higher when compared to CC genotype. Conclusions These results suggest an association between IL-6 levels and obesity, and IL-10 levels and the SNP -819 T/C in T2DM. Knowledge of these variants in T2DM might contribute to a better understanding of the role of inflammation in the etiology and progression of this disease.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2359-39972017000500438&lng=en&tlng=enType 2 diabetes mellituspolymorphismsinterleukin-6interleukin-10tumor necrosis factor-alpha
spellingShingle Kathryna Fontana Rodrigues
Nathalia Teixeira Pietrani
Adriana Aparecida Bosco
Fernanda Magalhães Freire Campos
Valéria Cristina Sandrim
Karina Braga Gomes
IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individuals
Archives of Endocrinology and Metabolism
Type 2 diabetes mellitus
polymorphisms
interleukin-6
interleukin-10
tumor necrosis factor-alpha
title IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individuals
title_full IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individuals
title_fullStr IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individuals
title_full_unstemmed IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individuals
title_short IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individuals
title_sort il 6 tnf α and il 10 levels polymorphisms and their association with type 2 diabetes mellitus and obesity in brazilian individuals
topic Type 2 diabetes mellitus
polymorphisms
interleukin-6
interleukin-10
tumor necrosis factor-alpha
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2359-39972017000500438&lng=en&tlng=en
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