Progress in the genetics of common obesity: size matters.

Abstract:

PURPOSE OF REVIEW:Over the past two decades serious efforts has been invested in the search for genes that predispose to common obesity, but progress has been slow and success limited. Genome-wide association, however, has revived optimism. Here we review recent advances in the field of obesity genetics and discuss the most important findings of candidate gene, genome-wide linkage studies and genome-wide association studies. We conclude by speculating about the way forward in the near future. RECENT FINDINGS:Although large-scale candidate gene studies have placed MC4R more firmly on the human obesity map, the major breakthrough in obesity genetics was the discovery of FTO through genome-wide association. Variants located in the first intron of FTO were unequivocally associated with a 1.67-fold increased risk for obesity and a 0.40-0.66 kg/m2 increase in body mass index. SUMMARY:Genome-wide association promises to enhance greatly our understanding of the genetic basis of common obesity, although candidate gene studies will remain a valuable approach because they allow more detailed analyses of biologically relevant candidates. A key factor contributing to continued success lies in large-scale data integration through international collaboration, which will provide the sample sizes required to identify genetic association with conclusive evidence.

journal_name

Curr Opin Lipidol

authors

Li S,Loos RJ

doi

10.1097/MOL.0b013e3282f6a7f3

subject

Has Abstract

pub_date

2008-04-01 00:00:00

pages

113-21

issue

2

eissn

0957-9672

issn

1473-6535

pii

00041433-200804000-00004

journal_volume

19

pub_type

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