Refining the impact of TCF7L2 gene variants on type 2 diabetes and adaptive evolution

Agnar Helgason; Snæbjörn Pálsson; Gudmar Thorleifsson; Struan F.A. Grant; Valur Emilsson; Steinunn Gunnarsdottir; Adebowale Adeyemo; Yuanxiu Chen; Guanjie Chen; Inga Reynisdottir; Rafn Benediktsson; Anke Hinney; Torben Hansen; Gitte Andersen; Knut Borch-Johnsen; Torben Jorgensen; Helmut Schäfer; Mezbah Faruque; Ayo Doumatey; Jie Zhou; Robert L. Wilensky; Muredach P. Reilly; Daniel J. Rader; Yu Bagger; Claus Christiansen; Gunnar Sigurdsson; Johannes Hebebrand; Oluf Pedersen; Unnur Thorsteinsdottir; Jeffrey R. Gulcher; Augustine Kong; Charles Rotimi; Kári Stefánsson

doi:10.1038/ng1960

Refining the impact of TCF7L2 gene variants on type 2 diabetes and adaptive evolution

Agnar Helgason^*, Snæbjörn Pálsson, Gudmar Thorleifsson, Struan F.A. Grant, Valur Emilsson, Steinunn Gunnarsdottir, Adebowale Adeyemo, Yuanxiu Chen, Guanjie Chen, Inga Reynisdottir, Rafn Benediktsson, Anke Hinney, Torben Hansen, Gitte Andersen, Knut Borch-Johnsen, Torben Jorgensen, Helmut Schäfer, Mezbah Faruque, Ayo Doumatey, Jie ZhouRobert L. Wilensky, Muredach P. Reilly, Daniel J. Rader, Yu Bagger, Claus Christiansen, Gunnar Sigurdsson, Johannes Hebebrand, Oluf Pedersen, Unnur Thorsteinsdottir, Jeffrey R. Gulcher, Augustine Kong, Charles Rotimi, Kári Stefánsson

^*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift › Artikel › Forskning › peer review

Abstract

We recently described an association between risk of type 2diabetes and variants in the transcription factor 7-like 2 gene (TCF7L2; formerly TCF4), with a population attributable risk (PAR) of 17%-28% in three populations of European ancestry. Here, we refine the definition of the TCF7L2 type 2diabetes risk variant, HapB_T2D, to the ancestral T allele of a SNP, rs7903146, through replication in West African and Danish type 2 diabetes case-control studies and an expanded Icelandic study. We also identify another variant of the same gene, HapA, that shows evidence of positive selection in East Asian, European and West African populations. Notably, HapA shows a suggestive association with body mass index and altered concentrations of the hunger-satiety hormones ghrelin and leptin in males, indicating that the selective advantage of HapA may have been mediated through effects on energy metabolism.

Originalsprog	Engelsk
Sider (fra-til)	218-225
Antal sider	8
Tidsskrift	Nature Genetics
Vol/bind	39
Udgave nummer	2
DOI	https://doi.org/10.1038/ng1960
Status	Udgivet - 1 feb. 2007

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Helgason, A., Pálsson, S., Thorleifsson, G., Grant, S. F. A., Emilsson, V., Gunnarsdottir, S., Adeyemo, A., Chen, Y., Chen, G., Reynisdottir, I., Benediktsson, R., Hinney, A., Hansen, T., Andersen, G., Borch-Johnsen, K., Jorgensen, T., Schäfer, H., Faruque, M., Doumatey, A., ... Stefánsson, K. (2007). Refining the impact of TCF7L2 gene variants on type 2 diabetes and adaptive evolution. Nature Genetics, 39(2), 218-225. https://doi.org/10.1038/ng1960

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title = "Refining the impact of TCF7L2 gene variants on type 2 diabetes and adaptive evolution",

abstract = "We recently described an association between risk of type 2diabetes and variants in the transcription factor 7-like 2 gene (TCF7L2; formerly TCF4), with a population attributable risk (PAR) of 17%-28% in three populations of European ancestry. Here, we refine the definition of the TCF7L2 type 2diabetes risk variant, HapBT2D, to the ancestral T allele of a SNP, rs7903146, through replication in West African and Danish type 2 diabetes case-control studies and an expanded Icelandic study. We also identify another variant of the same gene, HapA, that shows evidence of positive selection in East Asian, European and West African populations. Notably, HapA shows a suggestive association with body mass index and altered concentrations of the hunger-satiety hormones ghrelin and leptin in males, indicating that the selective advantage of HapA may have been mediated through effects on energy metabolism.",

author = "Agnar Helgason and Sn{\ae}bj{\"o}rn P{\'a}lsson and Gudmar Thorleifsson and Grant, {Struan F.A.} and Valur Emilsson and Steinunn Gunnarsdottir and Adebowale Adeyemo and Yuanxiu Chen and Guanjie Chen and Inga Reynisdottir and Rafn Benediktsson and Anke Hinney and Torben Hansen and Gitte Andersen and Knut Borch-Johnsen and Torben Jorgensen and Helmut Sch{\"a}fer and Mezbah Faruque and Ayo Doumatey and Jie Zhou and Wilensky, {Robert L.} and Reilly, {Muredach P.} and Rader, {Daniel J.} and Yu Bagger and Claus Christiansen and Gunnar Sigurdsson and Johannes Hebebrand and Oluf Pedersen and Unnur Thorsteinsdottir and Gulcher, {Jeffrey R.} and Augustine Kong and Charles Rotimi and K{\'a}ri Stef{\'a}nsson",

year = "2007",

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doi = "10.1038/ng1960",

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Helgason, A, Pálsson, S, Thorleifsson, G, Grant, SFA, Emilsson, V, Gunnarsdottir, S, Adeyemo, A, Chen, Y, Chen, G, Reynisdottir, I, Benediktsson, R, Hinney, A, Hansen, T, Andersen, G, Borch-Johnsen, K, Jorgensen, T, Schäfer, H, Faruque, M, Doumatey, A, Zhou, J, Wilensky, RL, Reilly, MP, Rader, DJ, Bagger, Y, Christiansen, C, Sigurdsson, G, Hebebrand, J, Pedersen, O, Thorsteinsdottir, U, Gulcher, JR, Kong, A, Rotimi, C & Stefánsson, K 2007, 'Refining the impact of TCF7L2 gene variants on type 2 diabetes and adaptive evolution', Nature Genetics, bind 39, nr. 2, s. 218-225. https://doi.org/10.1038/ng1960

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AU - Helgason, Agnar

AU - Pálsson, Snæbjörn

AU - Thorleifsson, Gudmar

AU - Grant, Struan F.A.

AU - Emilsson, Valur

AU - Gunnarsdottir, Steinunn

AU - Adeyemo, Adebowale

AU - Chen, Yuanxiu

AU - Chen, Guanjie

AU - Reynisdottir, Inga

AU - Benediktsson, Rafn

AU - Hinney, Anke

AU - Hansen, Torben

AU - Andersen, Gitte

AU - Borch-Johnsen, Knut

AU - Jorgensen, Torben

AU - Schäfer, Helmut

AU - Faruque, Mezbah

AU - Doumatey, Ayo

AU - Zhou, Jie

AU - Wilensky, Robert L.

AU - Reilly, Muredach P.

AU - Rader, Daniel J.

AU - Bagger, Yu

AU - Christiansen, Claus

AU - Sigurdsson, Gunnar

AU - Hebebrand, Johannes

AU - Pedersen, Oluf

AU - Thorsteinsdottir, Unnur

AU - Gulcher, Jeffrey R.

AU - Kong, Augustine

AU - Rotimi, Charles

AU - Stefánsson, Kári

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AB - We recently described an association between risk of type 2diabetes and variants in the transcription factor 7-like 2 gene (TCF7L2; formerly TCF4), with a population attributable risk (PAR) of 17%-28% in three populations of European ancestry. Here, we refine the definition of the TCF7L2 type 2diabetes risk variant, HapBT2D, to the ancestral T allele of a SNP, rs7903146, through replication in West African and Danish type 2 diabetes case-control studies and an expanded Icelandic study. We also identify another variant of the same gene, HapA, that shows evidence of positive selection in East Asian, European and West African populations. Notably, HapA shows a suggestive association with body mass index and altered concentrations of the hunger-satiety hormones ghrelin and leptin in males, indicating that the selective advantage of HapA may have been mediated through effects on energy metabolism.

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DO - 10.1038/ng1960

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Refining the impact of TCF7L2 gene variants on type 2 diabetes and adaptive evolution

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