Effects of fat mass and obesity-associated (FTO) gene polymorphisms on binge eating in women with binge-eating disorder: The moderating influence of attachment style

•No significant between-group differences were observed in this study for frequencies of FTO alleles.•FTO genotype interacted with attachment style to predict binge frequency.•rs1421085 interacts with insecure attachment in a way that may exacerbate binge eating. The genetics of binge-eating disorde...

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Veröffentlicht in:Nutrition (Burbank, Los Angeles County, Calif.) Los Angeles County, Calif.), 2019-05, Vol.61, p.208-212
Hauptverfasser: Cameron, Jameason D., Tasca, Giorgio A., Little, Julian, Chyurlia, Livia, Ritchie, Kerri, Yeh, Ed, Doucette, Steve, Obregon, Ana-Maria, Bulman, Dennis E., Doucet, Éric, Goldfield, Gary S.
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container_start_page 208
container_title Nutrition (Burbank, Los Angeles County, Calif.)
container_volume 61
creator Cameron, Jameason D.
Tasca, Giorgio A.
Little, Julian
Chyurlia, Livia
Ritchie, Kerri
Yeh, Ed
Doucette, Steve
Obregon, Ana-Maria
Bulman, Dennis E.
Doucet, Éric
Goldfield, Gary S.
description •No significant between-group differences were observed in this study for frequencies of FTO alleles.•FTO genotype interacted with attachment style to predict binge frequency.•rs1421085 interacts with insecure attachment in a way that may exacerbate binge eating. The genetics of binge-eating disorder (BED) is an emerging topic and one candidate pathway, namely the fat mass and obesity-associated (FTO) gene, may be implicated because of its role in food reward sensitivity and self-regulation of eating. The aims of this study were to examine the independent effects of variants of FTO on binge frequency in women with and without BED and to examine the moderating role of interpersonal attachment in this association. Secondary data analysis was conducted on a cross-sectional comparison of three groups of women in a trial of group treatment for BED: BED with obesity (n = 73), BED without obesity (n = 55), and normal weight without BED (n = 50). Women were genotyped for five of the most common FTO single-nucleotide polymorphisms, rs9939609, rs8050136, rs3751812, rs1421085, and rs1121980, which have been related to body mass index and energy intake. Binge frequency (Eating Disorder Examination), body composition (bioelectric impedance), and attachment (Attachment Style Questionnaire) were assessed. There were no significant between-group differences for frequencies of FTO alleles, nor were there any significant anthropometric associations. The FTO × attachment interaction was significant whereby, relative to a low-risk FTO genotype, individuals with a high-risk genotype for the SNP rs1421085 and high-avoidant attachment had higher mean binge frequency than those with high genetic risk but low-avoidant attachment (β = –7.96; t = –2.07; P = 0.042). FTO genotypes associated with risk for obesity and loss of control of eating, specifically rs1421085, may interact with insecure attachment in a way that may exacerbate binge eating among women with BED.
doi_str_mv 10.1016/j.nut.2018.11.006
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The genetics of binge-eating disorder (BED) is an emerging topic and one candidate pathway, namely the fat mass and obesity-associated (FTO) gene, may be implicated because of its role in food reward sensitivity and self-regulation of eating. The aims of this study were to examine the independent effects of variants of FTO on binge frequency in women with and without BED and to examine the moderating role of interpersonal attachment in this association. Secondary data analysis was conducted on a cross-sectional comparison of three groups of women in a trial of group treatment for BED: BED with obesity (n = 73), BED without obesity (n = 55), and normal weight without BED (n = 50). Women were genotyped for five of the most common FTO single-nucleotide polymorphisms, rs9939609, rs8050136, rs3751812, rs1421085, and rs1121980, which have been related to body mass index and energy intake. Binge frequency (Eating Disorder Examination), body composition (bioelectric impedance), and attachment (Attachment Style Questionnaire) were assessed. There were no significant between-group differences for frequencies of FTO alleles, nor were there any significant anthropometric associations. The FTO × attachment interaction was significant whereby, relative to a low-risk FTO genotype, individuals with a high-risk genotype for the SNP rs1421085 and high-avoidant attachment had higher mean binge frequency than those with high genetic risk but low-avoidant attachment (β = –7.96; t = –2.07; P = 0.042). 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The genetics of binge-eating disorder (BED) is an emerging topic and one candidate pathway, namely the fat mass and obesity-associated (FTO) gene, may be implicated because of its role in food reward sensitivity and self-regulation of eating. The aims of this study were to examine the independent effects of variants of FTO on binge frequency in women with and without BED and to examine the moderating role of interpersonal attachment in this association. Secondary data analysis was conducted on a cross-sectional comparison of three groups of women in a trial of group treatment for BED: BED with obesity (n = 73), BED without obesity (n = 55), and normal weight without BED (n = 50). Women were genotyped for five of the most common FTO single-nucleotide polymorphisms, rs9939609, rs8050136, rs3751812, rs1421085, and rs1121980, which have been related to body mass index and energy intake. 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Tasca, Giorgio A. ; Little, Julian ; Chyurlia, Livia ; Ritchie, Kerri ; Yeh, Ed ; Doucette, Steve ; Obregon, Ana-Maria ; Bulman, Dennis E. ; Doucet, Éric ; Goldfield, Gary S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c381t-4e358db63dd95b75d7fd50826829721bcd6373c400af46dcaa03e73969aaccd73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adult</topic><topic>Age</topic><topic>Alleles</topic><topic>Alpha-Ketoglutarate-Dependent Dioxygenase FTO - genetics</topic><topic>Anthropometry</topic><topic>Attachment</topic><topic>Automatic control</topic><topic>BED</topic><topic>Binge eating</topic><topic>Binge-Eating Disorder - genetics</topic><topic>Binge-Eating Disorder - psychology</topic><topic>Bioelectricity</topic><topic>Body Composition</topic><topic>Body fat</topic><topic>Body Mass Index</topic><topic>Body size</topic><topic>Bulimia - genetics</topic><topic>Bulimia - psychology</topic><topic>Clinical Trials as Topic</topic><topic>Cross-Sectional Studies</topic><topic>Data analysis</topic><topic>Data processing</topic><topic>Eating</topic><topic>Eating behavior</topic><topic>Eating disorders</topic><topic>Electric Impedance</topic><topic>Emotions</topic><topic>Energy intake</topic><topic>Female</topic><topic>FTO</topic><topic>Gene frequency</topic><topic>Genetics</topic><topic>Genotype</topic><topic>Genotype &amp; 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The genetics of binge-eating disorder (BED) is an emerging topic and one candidate pathway, namely the fat mass and obesity-associated (FTO) gene, may be implicated because of its role in food reward sensitivity and self-regulation of eating. The aims of this study were to examine the independent effects of variants of FTO on binge frequency in women with and without BED and to examine the moderating role of interpersonal attachment in this association. Secondary data analysis was conducted on a cross-sectional comparison of three groups of women in a trial of group treatment for BED: BED with obesity (n = 73), BED without obesity (n = 55), and normal weight without BED (n = 50). Women were genotyped for five of the most common FTO single-nucleotide polymorphisms, rs9939609, rs8050136, rs3751812, rs1421085, and rs1121980, which have been related to body mass index and energy intake. Binge frequency (Eating Disorder Examination), body composition (bioelectric impedance), and attachment (Attachment Style Questionnaire) were assessed. There were no significant between-group differences for frequencies of FTO alleles, nor were there any significant anthropometric associations. The FTO × attachment interaction was significant whereby, relative to a low-risk FTO genotype, individuals with a high-risk genotype for the SNP rs1421085 and high-avoidant attachment had higher mean binge frequency than those with high genetic risk but low-avoidant attachment (β = –7.96; t = –2.07; P = 0.042). FTO genotypes associated with risk for obesity and loss of control of eating, specifically rs1421085, may interact with insecure attachment in a way that may exacerbate binge eating among women with BED.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>30822753</pmid><doi>10.1016/j.nut.2018.11.006</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0001-7591-6935</orcidid><orcidid>https://orcid.org/0000-0001-6216-7824</orcidid></addata></record>
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identifier ISSN: 0899-9007
ispartof Nutrition (Burbank, Los Angeles County, Calif.), 2019-05, Vol.61, p.208-212
issn 0899-9007
1873-1244
language eng
recordid cdi_proquest_miscellaneous_2187524354
source MEDLINE; Access via ScienceDirect (Elsevier); ProQuest Central UK/Ireland
subjects Adult
Age
Alleles
Alpha-Ketoglutarate-Dependent Dioxygenase FTO - genetics
Anthropometry
Attachment
Automatic control
BED
Binge eating
Binge-Eating Disorder - genetics
Binge-Eating Disorder - psychology
Bioelectricity
Body Composition
Body fat
Body Mass Index
Body size
Bulimia - genetics
Bulimia - psychology
Clinical Trials as Topic
Cross-Sectional Studies
Data analysis
Data processing
Eating
Eating behavior
Eating disorders
Electric Impedance
Emotions
Energy intake
Female
FTO
Gene frequency
Genetics
Genotype
Genotype & phenotype
Genotypes
Humans
Ideal Body Weight
Middle Aged
Obesity
Obesity - genetics
Obesity - psychology
Object Attachment
Polymorphism, Single Nucleotide
Reinforcement
Risk
Single-nucleotide polymorphism
Weight
Weight control
Womens health
title Effects of fat mass and obesity-associated (FTO) gene polymorphisms on binge eating in women with binge-eating disorder: The moderating influence of attachment style
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