GCKR common functional polymorphisms are associated with metabolic syndrome and its components: a 10-year retrospective cohort study in Iranian adults

Abstract Background Previous studies reported that common functional variants (rs780093, rs780094, and rs1260326) in the glucokinase regulator gene (GCKR) were associated with metabolic syndrome despite the simultaneous association with the favorable and unfavorable metabolic syndrome components. We...

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Main Authors: Asiyeh Sadat Zahedi, Mahdi Akbarzadeh, Bahareh Sedaghati-Khayat, Atefeh Seyedhamzehzadeh, Maryam S. Daneshpour
Format: Article
Language:English
Published: BMC 2021-02-01
Series:Diabetology & Metabolic Syndrome
Subjects:
Online Access:https://doi.org/10.1186/s13098-021-00637-4
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author Asiyeh Sadat Zahedi
Mahdi Akbarzadeh
Bahareh Sedaghati-Khayat
Atefeh Seyedhamzehzadeh
Maryam S. Daneshpour
author_facet Asiyeh Sadat Zahedi
Mahdi Akbarzadeh
Bahareh Sedaghati-Khayat
Atefeh Seyedhamzehzadeh
Maryam S. Daneshpour
author_sort Asiyeh Sadat Zahedi
collection DOAJ
description Abstract Background Previous studies reported that common functional variants (rs780093, rs780094, and rs1260326) in the glucokinase regulator gene (GCKR) were associated with metabolic syndrome despite the simultaneous association with the favorable and unfavorable metabolic syndrome components. We decided to evaluate these findings in a cohort study with a large sample size of Iranian adult subjects, to our knowledge for the first time. We investigated the association of the GCKR variants with incident MetS in mean follow-up times for nearly 10 years. Methods Analysis of this retrospective cohort study was performed among 5666 participants of the Tehran Cardiometabolic Genetics Study (TCGS) at 19–88 years at baseline. Linear and logistic regression analyses were used to investigate the metabolic syndrome (JIS criteria) association and its components with rs780093, rs780094, and rs1260326 in an additive genetic model. Cox regression was carried out to peruse variants’ association with the incidence of metabolic syndrome in the TCGS cohort study. Results In the current study, we have consistently replicated the association of the GCKR SNPs with higher triglyceride and lower fasting blood sugar levels (p < 0.05) in Iranian adults. The CT genotype of the variants was associated with lower HDL-C levels. The proportional Cox adjusted model regression resulted that TT carriers of rs780094, rs780093, and rs1260326 were associated with 20%, 23%, and 21% excess risk metabolic syndrome incidence, respectively (p < 0.05). Conclusions Elevated triglyceride levels had the strongest association with GCKR selected variants among the metabolic syndrome components. Despite the association of these variants with decreased fasting blood sugar levels, T alleles of the variants were associated with metabolic syndrome incidence; so whether individuals are T allele carriers of the common functional variants, they have a risk factor for the future incidence of metabolic syndrome.
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spelling doaj.art-0be74f83bb1b480387d92f4debb40dfc2023-05-14T11:23:17ZengBMCDiabetology & Metabolic Syndrome1758-59962021-02-0113111010.1186/s13098-021-00637-4GCKR common functional polymorphisms are associated with metabolic syndrome and its components: a 10-year retrospective cohort study in Iranian adultsAsiyeh Sadat Zahedi0Mahdi Akbarzadeh1Bahareh Sedaghati-Khayat2Atefeh Seyedhamzehzadeh3Maryam S. Daneshpour4Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesCellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesCellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesCellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesCellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical SciencesAbstract Background Previous studies reported that common functional variants (rs780093, rs780094, and rs1260326) in the glucokinase regulator gene (GCKR) were associated with metabolic syndrome despite the simultaneous association with the favorable and unfavorable metabolic syndrome components. We decided to evaluate these findings in a cohort study with a large sample size of Iranian adult subjects, to our knowledge for the first time. We investigated the association of the GCKR variants with incident MetS in mean follow-up times for nearly 10 years. Methods Analysis of this retrospective cohort study was performed among 5666 participants of the Tehran Cardiometabolic Genetics Study (TCGS) at 19–88 years at baseline. Linear and logistic regression analyses were used to investigate the metabolic syndrome (JIS criteria) association and its components with rs780093, rs780094, and rs1260326 in an additive genetic model. Cox regression was carried out to peruse variants’ association with the incidence of metabolic syndrome in the TCGS cohort study. Results In the current study, we have consistently replicated the association of the GCKR SNPs with higher triglyceride and lower fasting blood sugar levels (p < 0.05) in Iranian adults. The CT genotype of the variants was associated with lower HDL-C levels. The proportional Cox adjusted model regression resulted that TT carriers of rs780094, rs780093, and rs1260326 were associated with 20%, 23%, and 21% excess risk metabolic syndrome incidence, respectively (p < 0.05). Conclusions Elevated triglyceride levels had the strongest association with GCKR selected variants among the metabolic syndrome components. Despite the association of these variants with decreased fasting blood sugar levels, T alleles of the variants were associated with metabolic syndrome incidence; so whether individuals are T allele carriers of the common functional variants, they have a risk factor for the future incidence of metabolic syndrome.https://doi.org/10.1186/s13098-021-00637-4Metabolic syndromeTriglycerideSingle nucleotide polymorphismsGCKR
spellingShingle Asiyeh Sadat Zahedi
Mahdi Akbarzadeh
Bahareh Sedaghati-Khayat
Atefeh Seyedhamzehzadeh
Maryam S. Daneshpour
GCKR common functional polymorphisms are associated with metabolic syndrome and its components: a 10-year retrospective cohort study in Iranian adults
Diabetology & Metabolic Syndrome
Metabolic syndrome
Triglyceride
Single nucleotide polymorphisms
GCKR
title GCKR common functional polymorphisms are associated with metabolic syndrome and its components: a 10-year retrospective cohort study in Iranian adults
title_full GCKR common functional polymorphisms are associated with metabolic syndrome and its components: a 10-year retrospective cohort study in Iranian adults
title_fullStr GCKR common functional polymorphisms are associated with metabolic syndrome and its components: a 10-year retrospective cohort study in Iranian adults
title_full_unstemmed GCKR common functional polymorphisms are associated with metabolic syndrome and its components: a 10-year retrospective cohort study in Iranian adults
title_short GCKR common functional polymorphisms are associated with metabolic syndrome and its components: a 10-year retrospective cohort study in Iranian adults
title_sort gckr common functional polymorphisms are associated with metabolic syndrome and its components a 10 year retrospective cohort study in iranian adults
topic Metabolic syndrome
Triglyceride
Single nucleotide polymorphisms
GCKR
url https://doi.org/10.1186/s13098-021-00637-4
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