A Common Genetic Variant Is Associated with Adult and Childhood Obesity

Author:

Herbert Alan12345,Gerry Norman P.12345,McQueen Matthew B.12345,Heid Iris M.12345,Pfeufer Arne12345,Illig Thomas12345,Wichmann H.-Erich12345,Meitinger Thomas12345,Hunter David12345,Hu Frank B.12345,Colditz Graham12345,Hinney Anke12345,Hebebrand Johannes12345,Koberwitz Kerstin12345,Zhu Xiaofeng12345,Cooper Richard12345,Ardlie Kristin12345,Lyon Helen12345,Hirschhorn Joel N.12345,Laird Nan M.12345,Lenburg Marc E.12345,Lange Christoph12345,Christman Michael F.12345

Affiliation:

1. Department of Genetics and Genomics, Boston University Medical School, E613, 715 Albany Street, Boston, MA 02118, USA.

2. Department of Epidemiology, Harvard School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA.

3. Institute of Epidemiology, Forschungszentrum für Umwelt und Gesundheit, D-85764 Neuherberg, Germany.

4. KORA Group, Forschungszentrum für Umwelt und Gesundheit, D-85764 Neuherberg, Germany.

5. Institute of Human Genetics, Forschungszentrum für Umwelt und Gesundheit, D-85764 Neuherberg, Germany.

Abstract

Obesity is a heritable trait and a risk factor for many common diseases such as type 2 diabetes, heart disease, and hypertension. We used a dense whole-genome scan of DNA samples from the Framingham Heart Study participants to identify a common genetic variant near the INSIG2 gene associated with obesity. We have replicated the finding in four separate samples composed of individuals of Western European ancestry, African Americans, and children. The obesity-predisposing genotype is present in 10% of individuals. Our study suggests that common genetic polymorphisms are important determinants of obesity.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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