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Bradfield, J.P.* ; Vogelezang, S.* ; Felix, J.F.* ; Chesi, A.* ; Helgeland, Ø.* ; Horikoshi, M.* ; Karhunen, V.* ; Lowry, E.* ; Cousminer, D.L.* ; Ahluwalia, T.S.* ; Thiering, E. ; Boh, E.T.* ; Zafarmand, M.H.* ; Wang, C.A.* ; Joro, R.* ; Chen, Z.* ; Gauderman, W.J.* ; Pitkänen, N.* ; Parra, E.J.* ; Fernández-Rhodes, L.* ; Alyass, A.* ; Monnereau, C.* ; Curtin, J.A.* ; Have, C.T.* ; McCormack, S.E.* ; Hollensted, M.* ; Frithioff-Bøjsøe, C.* ; Valladares-Salgado, A.* ; Peralta-Romero, J.* ; Standl, M. ; Leinonen, J.T.* ; Holm, J.C.* ; Peters, T.* ; Vioque, J.* ; Vrijheid, M.* ; Simpson, A.* ; Custovic, A.* ; Vaudel, M.* ; Canouil, M.* ; Lindi, V.* ; Atalay, M.* ; Kähönen, M.* ; Raitakari, O.T.* ; van Schaik, B.D.C.* ; Berkowitz, R.I.* ; Cole, S.A.* ; Voruganti, V.S.* ; Wang, Y.* ; Highland, H.M.* ; Comuzzie, A.G.* ; Butte, N.F.* ; Justice, A.E.* ; Gahagan, S.* ; Blanco, E.* ; Lehtimäki, T.* ; Lakka, T.A.* ; Hebebrand, J.* ; Bonnefond, A.* ; Grarup, N.* ; Froguel, P.* ; Lyytikäinen, L.P.* ; Cruz, M.* ; Kobes, S.* ; Hanson, R.L.* ; Zemel, B.S.* ; Hinney, A.* ; Teo, K.K.* ; Meyre, D.* ; North, K.E.* ; Gilliland, F.D.* ; Bisgaard, H.* ; Bustamante, M.* ; Bonnelykke, K.* ; Pennell, C.E.* ; Rivadeneira, F.* ; Uitterlinden, A.G.* ; Baier, L.J.* ; Vrijkotte, T.G.M.* ; Heinrich, J. ; Sørensen, T.I.A.* ; Saw, S.M.* ; Pedersen, O.* ; Hansen, T.* ; Eriksson, J.* ; Widén, E.* ; McCarthy, M.I.* ; Njølstad, P.R.* ; Power, C.* ; Hyppönen, E.* ; Sebert, S.* ; Brown, C.D.* ; Timpson, N.J.* ; Johansson, S.* ; Hakonarson, H.* ; Jaddoe, V.W.V.*

A trans-ancestral meta-analysis of genome-wide association studies reveals loci associated with childhood obesity.

Hum. Mol. Genet. 28, 3327-3338 (2019)
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Although hundreds of genome-wide association studies-implicated loci have been reported for adult obesity-related traits, less is known about the genetics specific for early-onset obesity and with only a few studies conducted in non-European populations to date. Searching for additional genetic variants associated with childhood obesity, we performed a trans-ancestral meta-analysis of 30 studies consisting of up to 13005 cases (>= 95th percentile of body mass index (BMI) achieved 2-18 years old) and 15599 controls (consistently <50th percentile of BMI) of European, African, North/South American and East Asian ancestry. Suggestive loci were taken forward for replication in a sample of 1888 cases and 4689 controls from seven cohorts of European and North/South American ancestry. In addition to observing 18 previously implicated BMI or obesity loci, for both early and late onset, we uncovered one completely novel locus in this trans-ancestral analysis (nearest gene, METTL15). The variant was nominally associated with only the European subgroup analysis but had a consistent direction of effect in other ethnicities. We then utilized trans-ancestral Bayesian analysis to narrow down the location of the probable causal variant at each genome-wide significant signal. Of all the fine-mapped loci, we were able to narrow down the causative variant at four known loci to fewer than 10 single nucleotide polymorphisms (SNPs) (FAIM2, GNPDA2, MC4R and SEC16B loci). In conclusion, an ethnically diverse setting has enabled us to both identify an additional pediatric obesity locus and further fine-map existing loci.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Susceptibility Loci; Identifies 3; Mc3r Gene; Management; Variants; Database
Language english
Publication Year 2019
HGF-reported in Year 2019
ISSN (print) / ISBN 0964-6906
e-ISSN 1460-2083
Journal Human Molecular Genetics
Quellenangaben Volume: 28, Issue: 19, Pages: 3327-3338 Article Number: , Supplement: ,
Publisher Oxford University Press
Publishing Place Great Clarendon St, Oxford Ox2 6dp, England
Reviewing status Peer reviewed
Institute(s) Institute of Epidemiology (EPI)
POF-Topic(s) 30202 - Environmental Health
Research field(s) Genetics and Epidemiology
PSP Element(s) G-504000-008
DOI 10.1093/hmg/ddz161
WOS ID WOS:000501731100016
Scopus ID 85075111079
PubMed ID 31504550
Erfassungsdatum 2019-09-25
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