Obesity is heritable and predisposes to many diseases. To understand the genetic basis of obesity better, here we conduct a genome-wide association study and Metabochip meta-analysis of body mass index (BMI), a measure commonly used to define obesity and assess adiposity, in up to 339,224 individuals. This analysis identifies 97 BMI-associated loci (P < 5 × 10-8), 56 of which are novel. Five loci demonstrate clear evidence of several independent association signals, and many loci have significant effects on other metabolic phenotypes. The 97 loci account for ∼2.7% of BMI variation, and genome-wide estimates suggest that common variation accounts for >20% of BMI variation. Pathway analyses provide strong support for a role of the central nervous system in obesity susceptibility and implicate new genes and pathways, including those related to synaptic function, glutamate signalling, insulin secretion/action, energy metabolism, lipid biology and adipogenesis.

Genetic studies of body mass index yield new insights for obesity biology / A.E. Locke, B. Kahali, S.I. Berndt, A.E. Justice, T.H. Pers, F.R. Day, C. Powell, S. Vedantam, M.L. Buchkovich, J. Yang, D.C. Croteau-Chonka, T. Esko, T. Fall, T. Ferreira, S. Gustafsson, Z. Kutalik, J. Luan, R. Mägi, J.C. Randall, T.W. Winkler, A.R. Wood, T. Workalemahu, J.D. Faul, J.A. Smith, J.H. Zhao, W. Zhao, J. Chen, R. Fehrmann, Å.K. Hedman, J. Karjalainen, E.M. Schmidt, D. Absher, N. Amin, D. Anderson, M. Beekman, J.L. Bolton, J.L. Bragg-Gresham, S. Buyske, A. Demirkan, G. Deng, G.B. Ehret, B. Feenstra, M.F. Feitosa, K. Fischer, A. Goel, J. Gong, A.U. Jackson, S. Kanoni, M.E. Kleber, K. Kristiansson, U. Lim, V. Lotay, M. Mangino, I.M. Leach, C. Medina-Gomez, S.E. Medland, M.A. Nalls, C.D. Palmer, D. Pasko, S. Pechlivanis, M.J. Peters, I. Prokopenko, D. Shungin, A. Stančáková, R.J. Strawbridge, Y.J. Sung, T. Tanaka, A. Teumer, S. Trompet, S.W. Van Der Laan, J. Van Setten, J.V. Van Vliet-Ostaptchouk, Z. Wang, L. Yengo, W. Zhang, A. Isaacs, E. Albrecht, J. Ärnlöv, G.M. Arscott, A.P. Attwood, S. Bandinelli, A. Barrett, I.N. Bas, C. Bellis, A.J. Bennett, C. Berne, R. Blagieva, M. Blüher, S. Böhringer, L.L. Bonnycastle, Y. Böttcher, H.A. Boyd, M. Bruinenberg, I.H. Caspersen, Y.I. Chen, R. Clarke, E..W. Daw, A.J.M. De Craen, G. Delgado, M. Dimitriou, A.S.F. Doney, N. Eklund, K. Estrada, E. Eury, L. Folkersen, R.M. Fraser, M.E. Garcia, F. Geller, V. Giedraitis, B. Gigante, A.S. Go, A. Golay, A.H. Goodall, S.D. Gordon, M. Gorski, H. Grabe, H. Grallert, T.B. Grammer, J. Gräßler, H. Grönberg, C.J. Groves, G. Gusto, J. Haessler, P. Hall, T. Haller, G. Hallmans, C.A. Hartman, M. Hassinen, C. Hayward, N.L. Heard-Costa, Q. Helmer, C. Hengstenberg, O. Holmen, J. Hottenga, A.L. James, J.M. Jeff, Å. Johansson, J. Jolley, T. Juliusdottir, L. Kinnunen, W. Koenig, M. Koskenvuo, W. Kratzer, J. Laitinen, C. Lamina, K. Leander, N.R. Lee, P. Lichtner, L. Lind, J. Lindström, K.S. Lo, S. Lobbens, R. Lorbeer, Y. Lu, F. Mach, P.K.E. Magnusson, A. Mahajan, W.L. Mcardle, S. Mclachlan, C. Menni, S. Merger, E. Mihailov, L. Milani, A. Moayyeri, K.L. Monda, M.A. Morken, A. Mulas, G. Müller, M. Müller-Nurasyid, A.W. Musk, R. Nagaraja, M.M. Nöthen, I.M. Nolte, S. Pilz, N.W. Rayner, F. Renstrom, R. Rettig, J.S. Ried, S. Ripke, N.R. Robertson, L.M. Rose, S. Sanna, H. Scharnagl, S. Scholtens, F.R. Schumacher, W.R. Scott, T. Seufferlein, J. Shi, A.V. Smith, J. Smolonska, A.V. Stanton, V. Steinthorsdottir, K. Stirrups, H.M. Stringham, J. Sundström, M.A. Swertz, A.J. Swift, A. Syvänen, S. Tan, B.O. Tayo, B. Thorand, G. Thorleifsson, J.P. Tyrer, H. Uh, L. Vandenput, F.C. Verhulst, S.H. Vermeulen, N. Verweij, J.M. Vonk, L.L. Waite, H.R. Warren, D. Waterworth, M.N. Weedon, L.R. Wilkens, C. Willenborg, T. Wilsgaard, M.K. Wojczynski, A. Wong, A.F. Wright, Q. Zhang, E.P. Brennan, M. Choi, Z. Dastani, A.W. Drong, P. Eriksson, A. Franco-Cereceda, J.R. Gådin, A.G. Gharavi, M.E. Goddard, R.E. 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Genetic studies of body mass index yield new insights for obesity biology

E. Tremoli;
2015

Abstract

Obesity is heritable and predisposes to many diseases. To understand the genetic basis of obesity better, here we conduct a genome-wide association study and Metabochip meta-analysis of body mass index (BMI), a measure commonly used to define obesity and assess adiposity, in up to 339,224 individuals. This analysis identifies 97 BMI-associated loci (P < 5 × 10-8), 56 of which are novel. Five loci demonstrate clear evidence of several independent association signals, and many loci have significant effects on other metabolic phenotypes. The 97 loci account for ∼2.7% of BMI variation, and genome-wide estimates suggest that common variation accounts for >20% of BMI variation. Pathway analyses provide strong support for a role of the central nervous system in obesity susceptibility and implicate new genes and pathways, including those related to synaptic function, glutamate signalling, insulin secretion/action, energy metabolism, lipid biology and adipogenesis.
Adipogenesis; Adiposity; Age Factors; Continental Population Groups; Energy Metabolism; Europe; Female; Genetic Predisposition to Disease; Glutamic Acid; Humans; Insulin; Male; Obesity; Polymorphism, Single Nucleotide; Quantitative Trait Loci; Synapses; Body Mass Index; Genome-Wide Association Study; Multidisciplinary
Settore BIO/18 - Genetica
feb-2015
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/282824
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