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Genome-wide SNP and CNV analysis identifies common and low-frequency variants associated with severe early-onset obesity

Open access
Wheeler, Eleanor, Huang, Ni, Bochukova, Elena G, Keogh, Julia M, Lindsay, Sarah, Garg, Sumedha, Henning, Elana, Blackburn, Hannah, Loos, Ruth J F, Wareham, Nick J, O'Rahilly, Stephen, Hurles, Matthew E, Barroso, Inês, Farooqi, I Sadaf·2013·Nature Genetics

Abstract

Common and rare variants associated with body mass index (BMI) and obesity account for <5% of the variance in BMI. We performed SNP and copy number variation (CNV) association analyses in 1,509 children with obesity at the extreme tail (>3 s.d. from the mean) of the BMI distribution and 5,380 controls. Evaluation of 29 SNPs (P < 1 × 10−5) in an additional 971 severely obese children and 1,990 controls identified 4 new loci associated with severe obesity (LEPR, PRKCH, PACS1 and RMST). A previously reported 43-kb deletion at the NEGR1 locus was significantly associated with severe obesity (P = 6.6 × 10−7). However, this signal was entirely driven by a flanking 8-kb deletion; absence of this deletion increased risk for obesity (P = 6.1 × 10−11). We found a significant burden of rare, single CNVs in severely obese cases (P < 0.0001). Integrative gene network pathway analysis of rare deletions indicated enrichment of genes affecting G protein–coupled receptors (GPCRs) involved in the neuronal regulation of energy homeostasis.

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Metadata

Authors
Wheeler, E., Huang, N., Bochukova, E. G., Keogh, J. M., Lindsay, S., Garg, S., Henning, E., Blackburn, H., Loos, R. J. F., Wareham, N. J., O'Rahilly, S., Hurles, M. E., Barroso, I., & Farooqi, I. S.
Venue
Nature Genetics
Published
2013-04-07
Volume
45
Issue
5
Pages
513-517
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W1990598085
Cited by
323
References
9
FWCI
24.28
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Genome-wide SNP and CNV analysis identifies common and low-frequency variants associated with severe early-onset obesity. https://app.cochat.ai/papers/10.1038/ng.2607
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Wheeler, E., Huang, N., Bochukova, E. G., Keogh, J. M., Lindsay, S., Garg, S., Henning, E., Blackburn, H., Loos, R. J. F., Wareham, N. J., O'Rahilly, S., Hurles, M. E., Barroso, I., & Farooqi, I. S. (2013). Genome-wide SNP and CNV analysis identifies common and low-frequency variants associated with severe early-onset obesity. Nature Genetics. https://doi.org/10.1038/ng.2607

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