Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular Approaches

In recent decades, obesity has reached epidemic proportions worldwide and became a major concern in public health. Despite heritability estimates of 40 to 70% and the long-recognized genetic basis of obesity in a number of rare cases, the list of common obesity susceptibility variants by the current...

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Main Authors: Carla Sustek D'Angelo, Celia Priszkulnik Koiffmann
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Obesity
Online Access:http://dx.doi.org/10.1155/2012/845480
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author Carla Sustek D'Angelo
Celia Priszkulnik Koiffmann
author_facet Carla Sustek D'Angelo
Celia Priszkulnik Koiffmann
author_sort Carla Sustek D'Angelo
collection DOAJ
description In recent decades, obesity has reached epidemic proportions worldwide and became a major concern in public health. Despite heritability estimates of 40 to 70% and the long-recognized genetic basis of obesity in a number of rare cases, the list of common obesity susceptibility variants by the currently published genome-wide association studies (GWASs) only explain a small proportion of the individual variation in risk of obesity. It was not until very recently that GWASs of copy number variants (CNVs) in individuals with extreme phenotypes reported a number of large and rare CNVs conferring high risk to obesity, and specifically deletions on chromosome 16p11.2. In this paper, we comment on the recent advances in the field of genetics of obesity with an emphasis on the genes and genomic regions implicated in highly penetrant forms of obesity associated with developmental disorders. Array genomic hybridization in this patient population has afforded discovery opportunities for CNVs that have not previously been detectable. This information can be used to generate new diagnostic arrays and sequencing platforms, which will likely enhance detection of known genetic conditions with the potential to elucidate new disease genes and ultimately help in developing a next-generation sequencing protocol relevant to clinical practice.
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spelling doaj-art-8a1a1a027f854c82a4989b5ca54ec86c2025-08-20T02:09:17ZengWileyJournal of Obesity2090-07082090-07162012-01-01201210.1155/2012/845480845480Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular ApproachesCarla Sustek D'Angelo0Celia Priszkulnik Koiffmann1Human Genome and Stem Cell Center, Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of Sao Paulo, 277 Rua do Matao, Rooms 204 and 209, 05508-090 Sao Paulo, SP, BrazilHuman Genome and Stem Cell Center, Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of Sao Paulo, 277 Rua do Matao, Rooms 204 and 209, 05508-090 Sao Paulo, SP, BrazilIn recent decades, obesity has reached epidemic proportions worldwide and became a major concern in public health. Despite heritability estimates of 40 to 70% and the long-recognized genetic basis of obesity in a number of rare cases, the list of common obesity susceptibility variants by the currently published genome-wide association studies (GWASs) only explain a small proportion of the individual variation in risk of obesity. It was not until very recently that GWASs of copy number variants (CNVs) in individuals with extreme phenotypes reported a number of large and rare CNVs conferring high risk to obesity, and specifically deletions on chromosome 16p11.2. In this paper, we comment on the recent advances in the field of genetics of obesity with an emphasis on the genes and genomic regions implicated in highly penetrant forms of obesity associated with developmental disorders. Array genomic hybridization in this patient population has afforded discovery opportunities for CNVs that have not previously been detectable. This information can be used to generate new diagnostic arrays and sequencing platforms, which will likely enhance detection of known genetic conditions with the potential to elucidate new disease genes and ultimately help in developing a next-generation sequencing protocol relevant to clinical practice.http://dx.doi.org/10.1155/2012/845480
spellingShingle Carla Sustek D'Angelo
Celia Priszkulnik Koiffmann
Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular Approaches
Journal of Obesity
title Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular Approaches
title_full Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular Approaches
title_fullStr Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular Approaches
title_full_unstemmed Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular Approaches
title_short Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular Approaches
title_sort copy number variants in obesity related syndromes review and perspectives on novel molecular approaches
url http://dx.doi.org/10.1155/2012/845480
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