Gene by Sex Interaction for Measures of Obesity in the Framingham Heart Study

Obesity is an increasingly prevalent and severe health concern with a substantial heritable component and marked sex differences. We sought to determine if the effect of genetic variants also differed by sex by performing a genome-wide association study modeling the effect of genotype-by-sex interac...

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Main Authors: Ashlee M. Benjamin, Sunil Suchindran, Kaela Pearce, Jennifer Rowell, Lillian F. Lien, John R. Guyton, Jeanette J. McCarthy
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Journal of Obesity
Online Access:http://dx.doi.org/10.1155/2011/329038
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author Ashlee M. Benjamin
Sunil Suchindran
Kaela Pearce
Jennifer Rowell
Lillian F. Lien
John R. Guyton
Jeanette J. McCarthy
author_facet Ashlee M. Benjamin
Sunil Suchindran
Kaela Pearce
Jennifer Rowell
Lillian F. Lien
John R. Guyton
Jeanette J. McCarthy
author_sort Ashlee M. Benjamin
collection DOAJ
description Obesity is an increasingly prevalent and severe health concern with a substantial heritable component and marked sex differences. We sought to determine if the effect of genetic variants also differed by sex by performing a genome-wide association study modeling the effect of genotype-by-sex interaction on obesity phenotypes. Genotype data from individuals in the Framingham Heart Study Offspring cohort were analyzed across five exams. Although no variants showed genome-wide significant gene-by-sex interaction in any individual exam, four polymorphisms displayed a consistent BMI association (P-values .00186 to .00010) across all five exams. These variants were clustered downstream of LYPLAL1, which encodes a lipase/esterase expressed in adipose tissue, a locus previously identified as having sex-specific effects on central obesity. Primary effects in males were in the opposite direction from females and were replicated in Framingham Generation 3. Our data support a sex-influenced association between genetic variation at the LYPLAL1 locus and obesity-related traits.
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spelling doaj-art-5a191be189a74684930f183bcc347e162025-02-03T01:23:40ZengWileyJournal of Obesity2090-07082090-07162011-01-01201110.1155/2011/329038329038Gene by Sex Interaction for Measures of Obesity in the Framingham Heart StudyAshlee M. Benjamin0Sunil Suchindran1Kaela Pearce2Jennifer Rowell3Lillian F. Lien4John R. Guyton5Jeanette J. McCarthy6Duke Institute for Genome Sciences and Policy, Duke University, Durham, NC 27708, USADuke Institute for Genome Sciences and Policy, Duke University, Durham, NC 27708, USADuke Institute for Genome Sciences and Policy, Duke University, Durham, NC 27708, USADivision of Endocrinology, Metabolism and Nutrition, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USADivision of Endocrinology, Metabolism and Nutrition, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USADivision of Endocrinology, Metabolism and Nutrition, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USADuke Institute for Genome Sciences and Policy, Duke University, Durham, NC 27708, USAObesity is an increasingly prevalent and severe health concern with a substantial heritable component and marked sex differences. We sought to determine if the effect of genetic variants also differed by sex by performing a genome-wide association study modeling the effect of genotype-by-sex interaction on obesity phenotypes. Genotype data from individuals in the Framingham Heart Study Offspring cohort were analyzed across five exams. Although no variants showed genome-wide significant gene-by-sex interaction in any individual exam, four polymorphisms displayed a consistent BMI association (P-values .00186 to .00010) across all five exams. These variants were clustered downstream of LYPLAL1, which encodes a lipase/esterase expressed in adipose tissue, a locus previously identified as having sex-specific effects on central obesity. Primary effects in males were in the opposite direction from females and were replicated in Framingham Generation 3. Our data support a sex-influenced association between genetic variation at the LYPLAL1 locus and obesity-related traits.http://dx.doi.org/10.1155/2011/329038
spellingShingle Ashlee M. Benjamin
Sunil Suchindran
Kaela Pearce
Jennifer Rowell
Lillian F. Lien
John R. Guyton
Jeanette J. McCarthy
Gene by Sex Interaction for Measures of Obesity in the Framingham Heart Study
Journal of Obesity
title Gene by Sex Interaction for Measures of Obesity in the Framingham Heart Study
title_full Gene by Sex Interaction for Measures of Obesity in the Framingham Heart Study
title_fullStr Gene by Sex Interaction for Measures of Obesity in the Framingham Heart Study
title_full_unstemmed Gene by Sex Interaction for Measures of Obesity in the Framingham Heart Study
title_short Gene by Sex Interaction for Measures of Obesity in the Framingham Heart Study
title_sort gene by sex interaction for measures of obesity in the framingham heart study
url http://dx.doi.org/10.1155/2011/329038
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