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Oxytocin receptor gene polymorphism and low serum oxytocin level are associated with hyperphagia and obesity in adolescents

Background/Objectives In recent years, oxytocin (OXT) and polymorphisms in the oxytocin receptor ( OXTR) gene have been reported to play roles in obesity pathogenesis. However, there was no study evaluating OXTR gene variants in childhood obesity. The aim of the study was to investigate the relation...

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Published in:International Journal of Obesity 2021-09, Vol.45 (9), p.2064-2073
Main Authors: Çatli, Gönül, Acar, Sezer, Cingöz, Gülten, Rasulova, Khayala, Yarim, Ayça Kanat, Uzun, Hamide, Küme, Tuncay, Kızıldağ, Sefa, Dündar, Bumin Nuri, Abacı, Ayhan
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cited_by cdi_FETCH-LOGICAL-c473t-dce117c9b1e4c53158f03372fe16c28fa97f1a29a7ffee3c382f3f584a59b6253
cites cdi_FETCH-LOGICAL-c473t-dce117c9b1e4c53158f03372fe16c28fa97f1a29a7ffee3c382f3f584a59b6253
container_end_page 2073
container_issue 9
container_start_page 2064
container_title International Journal of Obesity
container_volume 45
creator Çatli, Gönül
Acar, Sezer
Cingöz, Gülten
Rasulova, Khayala
Yarim, Ayça Kanat
Uzun, Hamide
Küme, Tuncay
Kızıldağ, Sefa
Dündar, Bumin Nuri
Abacı, Ayhan
description Background/Objectives In recent years, oxytocin (OXT) and polymorphisms in the oxytocin receptor ( OXTR) gene have been reported to play roles in obesity pathogenesis. However, there was no study evaluating OXTR gene variants in childhood obesity. The aim of the study was to investigate the relation of OXTR gene polymorphisms and serum OXT levels with metabolic and anthropometric parameters in obese and healthy adolescents. Subjects/Methods The study was a multi-centered case-control study, which was conducted on obese and healthy adolescents aged between 12 and 17 years. Serum OXT and leptin levels were measured, and OXTR gene variants were studied by qPCR (rs53576) and RFLP (rs2254298) methods. Results A total of 250 obese and 250 healthy adolescents were included in this study. In the obese group, serum OXT level was lower and leptin level was higher than the control group. In the obese group, frequencies of homozygous mutant (G/G) and heterozygous (A/G) genotypes for rs53576 polymorphism were higher than the control group. Homozygous mutant(G/G) and heterozygous (A/G) genotypes for rs53576 polymorphism were found to increase the risk of obesity compared to the wild type (A/A) genotype [OR = 6.05 and OR = 3.06; p  
doi_str_mv 10.1038/s41366-021-00876-5
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However, there was no study evaluating OXTR gene variants in childhood obesity. The aim of the study was to investigate the relation of OXTR gene polymorphisms and serum OXT levels with metabolic and anthropometric parameters in obese and healthy adolescents. Subjects/Methods The study was a multi-centered case-control study, which was conducted on obese and healthy adolescents aged between 12 and 17 years. Serum OXT and leptin levels were measured, and OXTR gene variants were studied by qPCR (rs53576) and RFLP (rs2254298) methods. Results A total of 250 obese and 250 healthy adolescents were included in this study. In the obese group, serum OXT level was lower and leptin level was higher than the control group. In the obese group, frequencies of homozygous mutant (G/G) and heterozygous (A/G) genotypes for rs53576 polymorphism were higher than the control group. Homozygous mutant(G/G) and heterozygous (A/G) genotypes for rs53576 polymorphism were found to increase the risk of obesity compared to the wild type (A/A) genotype [OR = 6.05 and OR = 3.06; p  &lt; 0.001, respectively]. In patients with homozygous mutant (G/G) and heterozygous (A/G) genotype for rs53576 polymorphism, serum OXT levels were lower than the wild type (A/A) genotype. In the obese group, hyperphagia score was higher than the control group and correlated negatively with serum OXT level. Conclusions This study revealed that low serum OXT level, which is associated with hyperphagia may be an underlying cause for obesity in adolescents. For rs53576 polymorphism of the OXTR gene, obesity risk is higher in patients with homozygous mutant(G/G) and heterozygous(A/G)genotypes.</description><identifier>ISSN: 0307-0565</identifier><identifier>EISSN: 1476-5497</identifier><identifier>DOI: 10.1038/s41366-021-00876-5</identifier><identifier>PMID: 34091593</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>45/77 ; 692/163/2743/393 ; 692/308 ; Adolescent ; Adolescents ; Case-Control Studies ; Children ; Epidemiology ; Female ; Gene polymorphism ; Genetic aspects ; Genetic polymorphisms ; Genotype &amp; phenotype ; Genotypes ; Health aspects ; Health Promotion and Disease Prevention ; Hormone receptors ; Humans ; Hyperphagia ; Hyperphagia - blood ; Hyperphagia - complications ; Internal Medicine ; Leptin ; Male ; Medicine ; Medicine &amp; Public Health ; Metabolic Diseases ; Mutants ; Obesity ; Obesity in adolescence ; Oxytocin ; Oxytocin - analysis ; Oxytocin - blood ; Pathogenesis ; Pediatric Obesity - blood ; Pediatric Obesity - complications ; Pediatric research ; Polymorphism ; Polymorphism, Genetic ; Public Health ; Receptors ; Receptors, Oxytocin - genetics ; Risk factors ; Teenagers</subject><ispartof>International Journal of Obesity, 2021-09, Vol.45 (9), p.2064-2073</ispartof><rights>The Author(s), under exclusive licence to Springer Nature Limited 2021</rights><rights>2021. The Author(s), under exclusive licence to Springer Nature Limited.</rights><rights>COPYRIGHT 2021 Nature Publishing Group</rights><rights>The Author(s), under exclusive licence to Springer Nature Limited 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c473t-dce117c9b1e4c53158f03372fe16c28fa97f1a29a7ffee3c382f3f584a59b6253</citedby><cites>FETCH-LOGICAL-c473t-dce117c9b1e4c53158f03372fe16c28fa97f1a29a7ffee3c382f3f584a59b6253</cites><orcidid>0000-0002-0488-6377 ; 0000-0002-3002-480X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34091593$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Çatli, Gönül</creatorcontrib><creatorcontrib>Acar, Sezer</creatorcontrib><creatorcontrib>Cingöz, Gülten</creatorcontrib><creatorcontrib>Rasulova, Khayala</creatorcontrib><creatorcontrib>Yarim, Ayça Kanat</creatorcontrib><creatorcontrib>Uzun, Hamide</creatorcontrib><creatorcontrib>Küme, Tuncay</creatorcontrib><creatorcontrib>Kızıldağ, Sefa</creatorcontrib><creatorcontrib>Dündar, Bumin Nuri</creatorcontrib><creatorcontrib>Abacı, Ayhan</creatorcontrib><title>Oxytocin receptor gene polymorphism and low serum oxytocin level are associated with hyperphagia and obesity in adolescents</title><title>International Journal of Obesity</title><addtitle>Int J Obes</addtitle><addtitle>Int J Obes (Lond)</addtitle><description>Background/Objectives In recent years, oxytocin (OXT) and polymorphisms in the oxytocin receptor ( OXTR) gene have been reported to play roles in obesity pathogenesis. However, there was no study evaluating OXTR gene variants in childhood obesity. The aim of the study was to investigate the relation of OXTR gene polymorphisms and serum OXT levels with metabolic and anthropometric parameters in obese and healthy adolescents. Subjects/Methods The study was a multi-centered case-control study, which was conducted on obese and healthy adolescents aged between 12 and 17 years. Serum OXT and leptin levels were measured, and OXTR gene variants were studied by qPCR (rs53576) and RFLP (rs2254298) methods. Results A total of 250 obese and 250 healthy adolescents were included in this study. In the obese group, serum OXT level was lower and leptin level was higher than the control group. In the obese group, frequencies of homozygous mutant (G/G) and heterozygous (A/G) genotypes for rs53576 polymorphism were higher than the control group. Homozygous mutant(G/G) and heterozygous (A/G) genotypes for rs53576 polymorphism were found to increase the risk of obesity compared to the wild type (A/A) genotype [OR = 6.05 and OR = 3.06; p  &lt; 0.001, respectively]. In patients with homozygous mutant (G/G) and heterozygous (A/G) genotype for rs53576 polymorphism, serum OXT levels were lower than the wild type (A/A) genotype. In the obese group, hyperphagia score was higher than the control group and correlated negatively with serum OXT level. Conclusions This study revealed that low serum OXT level, which is associated with hyperphagia may be an underlying cause for obesity in adolescents. 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Acar, Sezer ; Cingöz, Gülten ; Rasulova, Khayala ; Yarim, Ayça Kanat ; Uzun, Hamide ; Küme, Tuncay ; Kızıldağ, Sefa ; Dündar, Bumin Nuri ; Abacı, Ayhan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c473t-dce117c9b1e4c53158f03372fe16c28fa97f1a29a7ffee3c382f3f584a59b6253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>45/77</topic><topic>692/163/2743/393</topic><topic>692/308</topic><topic>Adolescent</topic><topic>Adolescents</topic><topic>Case-Control Studies</topic><topic>Children</topic><topic>Epidemiology</topic><topic>Female</topic><topic>Gene polymorphism</topic><topic>Genetic aspects</topic><topic>Genetic polymorphisms</topic><topic>Genotype &amp; phenotype</topic><topic>Genotypes</topic><topic>Health aspects</topic><topic>Health Promotion and Disease Prevention</topic><topic>Hormone receptors</topic><topic>Humans</topic><topic>Hyperphagia</topic><topic>Hyperphagia - blood</topic><topic>Hyperphagia - complications</topic><topic>Internal Medicine</topic><topic>Leptin</topic><topic>Male</topic><topic>Medicine</topic><topic>Medicine &amp; 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However, there was no study evaluating OXTR gene variants in childhood obesity. The aim of the study was to investigate the relation of OXTR gene polymorphisms and serum OXT levels with metabolic and anthropometric parameters in obese and healthy adolescents. Subjects/Methods The study was a multi-centered case-control study, which was conducted on obese and healthy adolescents aged between 12 and 17 years. Serum OXT and leptin levels were measured, and OXTR gene variants were studied by qPCR (rs53576) and RFLP (rs2254298) methods. Results A total of 250 obese and 250 healthy adolescents were included in this study. In the obese group, serum OXT level was lower and leptin level was higher than the control group. In the obese group, frequencies of homozygous mutant (G/G) and heterozygous (A/G) genotypes for rs53576 polymorphism were higher than the control group. Homozygous mutant(G/G) and heterozygous (A/G) genotypes for rs53576 polymorphism were found to increase the risk of obesity compared to the wild type (A/A) genotype [OR = 6.05 and OR = 3.06; p  &lt; 0.001, respectively]. In patients with homozygous mutant (G/G) and heterozygous (A/G) genotype for rs53576 polymorphism, serum OXT levels were lower than the wild type (A/A) genotype. In the obese group, hyperphagia score was higher than the control group and correlated negatively with serum OXT level. Conclusions This study revealed that low serum OXT level, which is associated with hyperphagia may be an underlying cause for obesity in adolescents. For rs53576 polymorphism of the OXTR gene, obesity risk is higher in patients with homozygous mutant(G/G) and heterozygous(A/G)genotypes.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>34091593</pmid><doi>10.1038/s41366-021-00876-5</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-0488-6377</orcidid><orcidid>https://orcid.org/0000-0002-3002-480X</orcidid></addata></record>
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ispartof International Journal of Obesity, 2021-09, Vol.45 (9), p.2064-2073
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1476-5497
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subjects 45/77
692/163/2743/393
692/308
Adolescent
Adolescents
Case-Control Studies
Children
Epidemiology
Female
Gene polymorphism
Genetic aspects
Genetic polymorphisms
Genotype & phenotype
Genotypes
Health aspects
Health Promotion and Disease Prevention
Hormone receptors
Humans
Hyperphagia
Hyperphagia - blood
Hyperphagia - complications
Internal Medicine
Leptin
Male
Medicine
Medicine & Public Health
Metabolic Diseases
Mutants
Obesity
Obesity in adolescence
Oxytocin
Oxytocin - analysis
Oxytocin - blood
Pathogenesis
Pediatric Obesity - blood
Pediatric Obesity - complications
Pediatric research
Polymorphism
Polymorphism, Genetic
Public Health
Receptors
Receptors, Oxytocin - genetics
Risk factors
Teenagers
title Oxytocin receptor gene polymorphism and low serum oxytocin level are associated with hyperphagia and obesity in adolescents
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