title: Common variants at CDKAL1 and KLF9 are associated with body mass index in east Asian populations.
abstract: Obesity is a disorder with a complex genetic etiology, and its epidemic is a worldwide problem. Although multiple genetic loci associated with body mass index, the most common measure of obesity, have been identified in European populations, few studies have focused on Asian populations. Here we report a genome-wide association study and replication studies with 62,245 east Asian subjects, which identified two new body mass index-associated loci in the CDKAL1 locus at 6p22 (rs2206734, P = 1.4 × 10(-11)) and the KLF9 locus at 9q21 (rs11142387, P = 1.3 × 10(-9)), as well as several previously reported loci (the SEC16B, BDNF, FTO, MC4R and GIPR loci, P < 5.0 × 10(-8)). We subsequently performed gene-gene interaction analyses and identified an interaction (P = 2.0 × 10(-8)) between a SNP in the KLF9 locus (rs11142387) and one in the MSTN (also known as GDF8) locus at 2q32 (rs13034723). These findings should provide useful insights into the etiology of obesity.
authors.affiliation: Laboratory for Statistical Analysis, Center for Genomic Medicine, RIKEN, Yokohama, Japan. yokada@src.riken.jp
authors.forename: Yukinori
authors.initials: Y
authors.lastname: Okada
authors.forename: Michiaki
authors.initials: M
authors.lastname: Kubo
authors.forename: Hiroko
authors.initials: H
authors.lastname: Ohmiya
authors.forename: Atsushi
authors.initials: A
authors.lastname: Takahashi
authors.forename: Natsuhiko
authors.initials: N
authors.lastname: Kumasaka
authors.forename: Naoya
authors.initials: N
authors.lastname: Hosono
authors.forename: Shiro
authors.initials: S
authors.lastname: Maeda
authors.forename: Wanqing
authors.initials: W
authors.lastname: Wen
authors.forename: Rajkumar
authors.initials: R
authors.lastname: Dorajoo
authors.forename: Min Jin
authors.initials: MJ
authors.lastname: Go
authors.forename: Wei
authors.initials: W
authors.lastname: Zheng
authors.forename: Norihiro
authors.initials: N
authors.lastname: Kato
authors.forename: Jer-Yuarn
authors.initials: JY
authors.lastname: Wu
authors.forename: Qi
authors.initials: Q
authors.lastname: Lu
authors.forename: Tatsuhiko
authors.initials: T
authors.lastname: Tsunoda
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Nakamura
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Kamatani
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Tanaka
mesh_terms: D044466:Asian People / Q000235:genetics*; D015992:Body Mass Index; D002896:Chromosomes, Human, Pair 6 / Q000235:genetics*; D002899:Chromosomes, Human, Pair 9 / Q000235:genetics*; D051360:Cyclin-Dependent Kinase 5 / Q000235:genetics*; D005202:Asia, Eastern; D014644:Genetic Variation; D055106:Genome-Wide Association Study; D005838:Genotype; D006801:Humans; D051741:Kruppel-Like Transcription Factors / Q000235:genetics*; D009765:Obesity / Q000208:ethnology / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide / Q000235:genetics; D012359:tRNA Methyltransferases
chemical_list: C489676:KLF9 protein, human; D051741:Kruppel-Like Transcription Factors; D012359:tRNA Methyltransferases; D051360:Cyclin-Dependent Kinase 5; C525110:CDKAL1 protein, human