Association between interleukin 6 -174 G/C promoter gene polymorphism and runners' responses to the dietary ingestion of antioxidant supplementation based on pequi (Caryocar brasiliense Camb.) oil: a before-after study

Abstract Exercise is a double-edged sword: when practiced in moderation, it increases the expression of antioxidant enzymes, but when practiced strenuously it causes oxidative stress and cell damage. In this context, polymorphisms in the interleukin (IL)-6 gene should be investigated better because...

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Main Authors: Ana Luisa Miranda-Vilela, Ieler Ferreira Ribeiro, Cesar Koppe Grisolia
Format: Article
Language:English
Published: Sociedade Brasileira de Genética
Series:Genetics and Molecular Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016005014101&lng=en&tlng=en
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author Ana Luisa Miranda-Vilela
Ieler Ferreira Ribeiro
Cesar Koppe Grisolia
author_facet Ana Luisa Miranda-Vilela
Ieler Ferreira Ribeiro
Cesar Koppe Grisolia
author_sort Ana Luisa Miranda-Vilela
collection DOAJ
description Abstract Exercise is a double-edged sword: when practiced in moderation, it increases the expression of antioxidant enzymes, but when practiced strenuously it causes oxidative stress and cell damage. In this context, polymorphisms in the interleukin (IL)-6 gene should be investigated better because they can influence performance, at least in exercise that generates oxidative stress and leads to muscular injuries with consequent inflammation. In this work, we investigated the influence of IL-6 –174 G/C polymorphism on tissue damage and inflammation markers, lipid peroxidation, hemogram and lipid profile of runners before and after ingestion of 400 mg of pequi oil in capsules supplied daily for 14 consecutive days. The IL-6 genotypes were associated with significant differences in lipid peroxidation, with the CC mutant having lower values. There were also significant differences among these genotypes in the response to supplementation with pequi oil, exercise-induced damage and C-reactive protein (CRP) levels. The best protection against damage was observed with the heterozygous genotype. Although the CC genotype showed an increase in CRP levels after supplementation, the lack of a positive correlation between triglycerides and high-sensitivity CRP in this mutant genotype after supplementation indicated a protective effect of pequi. These findings deserve further investigation, particularly with regard to the quantification of circulating IL-6 concentrations.
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spelling doaj.art-c7c8ca78271a4d4788c0171b4f7562262022-12-21T20:36:13ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1678-4685010.1590/1678-4685-GMB-2015-0299S1415-47572016005014101Association between interleukin 6 -174 G/C promoter gene polymorphism and runners' responses to the dietary ingestion of antioxidant supplementation based on pequi (Caryocar brasiliense Camb.) oil: a before-after studyAna Luisa Miranda-VilelaIeler Ferreira RibeiroCesar Koppe GrisoliaAbstract Exercise is a double-edged sword: when practiced in moderation, it increases the expression of antioxidant enzymes, but when practiced strenuously it causes oxidative stress and cell damage. In this context, polymorphisms in the interleukin (IL)-6 gene should be investigated better because they can influence performance, at least in exercise that generates oxidative stress and leads to muscular injuries with consequent inflammation. In this work, we investigated the influence of IL-6 –174 G/C polymorphism on tissue damage and inflammation markers, lipid peroxidation, hemogram and lipid profile of runners before and after ingestion of 400 mg of pequi oil in capsules supplied daily for 14 consecutive days. The IL-6 genotypes were associated with significant differences in lipid peroxidation, with the CC mutant having lower values. There were also significant differences among these genotypes in the response to supplementation with pequi oil, exercise-induced damage and C-reactive protein (CRP) levels. The best protection against damage was observed with the heterozygous genotype. Although the CC genotype showed an increase in CRP levels after supplementation, the lack of a positive correlation between triglycerides and high-sensitivity CRP in this mutant genotype after supplementation indicated a protective effect of pequi. These findings deserve further investigation, particularly with regard to the quantification of circulating IL-6 concentrations.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016005014101&lng=en&tlng=enantioxidant supplementationexercise-induced oxidative damageinflammatory markersnutrigeneticsnutrigenomics
spellingShingle Ana Luisa Miranda-Vilela
Ieler Ferreira Ribeiro
Cesar Koppe Grisolia
Association between interleukin 6 -174 G/C promoter gene polymorphism and runners' responses to the dietary ingestion of antioxidant supplementation based on pequi (Caryocar brasiliense Camb.) oil: a before-after study
Genetics and Molecular Biology
antioxidant supplementation
exercise-induced oxidative damage
inflammatory markers
nutrigenetics
nutrigenomics
title Association between interleukin 6 -174 G/C promoter gene polymorphism and runners' responses to the dietary ingestion of antioxidant supplementation based on pequi (Caryocar brasiliense Camb.) oil: a before-after study
title_full Association between interleukin 6 -174 G/C promoter gene polymorphism and runners' responses to the dietary ingestion of antioxidant supplementation based on pequi (Caryocar brasiliense Camb.) oil: a before-after study
title_fullStr Association between interleukin 6 -174 G/C promoter gene polymorphism and runners' responses to the dietary ingestion of antioxidant supplementation based on pequi (Caryocar brasiliense Camb.) oil: a before-after study
title_full_unstemmed Association between interleukin 6 -174 G/C promoter gene polymorphism and runners' responses to the dietary ingestion of antioxidant supplementation based on pequi (Caryocar brasiliense Camb.) oil: a before-after study
title_short Association between interleukin 6 -174 G/C promoter gene polymorphism and runners' responses to the dietary ingestion of antioxidant supplementation based on pequi (Caryocar brasiliense Camb.) oil: a before-after study
title_sort association between interleukin 6 174 g c promoter gene polymorphism and runners responses to the dietary ingestion of antioxidant supplementation based on pequi caryocar brasiliense camb oil a before after study
topic antioxidant supplementation
exercise-induced oxidative damage
inflammatory markers
nutrigenetics
nutrigenomics
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016005014101&lng=en&tlng=en
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