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Pervjakova, N.* ; Moen, G.H.* ; Borges, M.C.* ; Ferreira, T.* ; Cook, J.P.* ; Allard, C.* ; Beaumont, R.N.* ; Canouil, M.* ; Hatem, G.* ; Heiskala, A.* ; Joensuu, A.* ; Karhunen, V.* ; Kwak, S.H.* ; Lin, F.T.J.* ; Liu, J.* ; Rifas-Shiman, S.L.* ; Tam, C.H.* ; Tam, W.H.* ; Thorleifsson, G.* ; Andrew, T.* ; Auvinen, J.* ; Bhowmik, B.* ; Bonnefond, A.* ; Delahaye, F.* ; Demirkan, A.* ; Froguel, P.* ; Haller-Kikkatalo, K.* ; Hardardottir, H.* ; Hummel, S. ; Hussain, A.* ; Kajantie, E.* ; Keikkala, E.* ; Khamis, A.* ; Lahti, J.* ; Lekva, T.* ; Mustaniemi, S.* ; Sommer, C.* ; Tagoma, A.* ; Tzala, E.* ; Uibo, R.* ; Vääräsmäki, M.* ; Villa, P.M.* ; Birkeland, K.I.* ; Bouchard, L.* ; Duijn, C.M.* ; Finer, S.* ; Groop, L.* ; Hämäläinen, E.* ; Hayes, G.M.* ; Hitman, G.A.* ; Jang, H.C.* ; Järvelin, M.R.* ; Jenum, A.K.* ; Laivuori, H.* ; Ma, R.C.* ; Melander, O.* ; Oken, E.* ; Park, K.S.* ; Perron, P.* ; Prasad, R.B.* ; Qvigstad, E.* ; Sebert, S.* ; Stefansson, K.* ; Steinthorsdottir, V.* ; Tuomi, T.* ; Hivert, M.F.* ; Franks, P.W.* ; McCarthy, M.I.* ; Lindgren, C.M.* ; Freathy, R.M.* ; Lawlor, D.A.* ; Morris, A.P.* ; Mägi, R.*

Multi-ancestry genome-wide association study of gestational diabetes mellitus highlights genetic links with type 2 diabetes.

Hum. Mol. Genet. 31, 3377–3391 (2022)
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Gestational diabetes mellitus (GDM) is associated with increased risk of pregnancy complications and adverse perinatal outcomes. GDM often reoccurs and is associated with increased risk of subsequent diagnosis of type 2 diabetes (T2D). To improve our understanding of the aetiological factors and molecular processes driving the occurrence of GDM, including the extent to which these overlap with T2D pathophysiology, the GENetics of Diabetes In Pregnancy (GenDIP) Consortium assembled genome-wide association studies (GWAS) of diverse ancestry in a total of 5485 women with GDM and 347 856 without GDM. Through multi-ancestry meta-analysis, we identified five loci with genome-wide significant association (p < 5x10-8) with GDM, mapping to/near MTNR1B (p = 4.3x10-54), TCF7L2 (p = 4.0x10-16), CDKAL1 (p = 1.6 × 10-14), CDKN2A-CDKN2B (p = 4.1x10-9) and HKDC1 (p = 2.9x10-8). Multiple lines of evidence pointed to the shared pathophysiology of GDM and T2D: (i) four of the five GDM loci (not HKDC1) have been previously reported at genome-wide significance for T2D; (ii) significant enrichment for associations with GDM at previously reported T2D loci; (iii) strong genetic correlation between GDM and T2D; and (iv) enrichment of GDM associations mapping to genomic annotations in diabetes-relevant tissues and transcription factor binding sites. Mendelian randomisation analyses demonstrated significant causal association (5% false discovery rate) of higher body mass index on increased GDM risk. Our results provide support for the hypothesis that GDM and T2D are part of the same underlying pathology but that, as exemplified by the HKDC1 locus, there are genetic determinants of GDM that are specific to glucose regulation in pregnancy.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Sprache englisch
Veröffentlichungsjahr 2022
HGF-Berichtsjahr 2022
ISSN (print) / ISBN 0964-6906
e-ISSN 1460-2083
Zeitschrift Human Molecular Genetics
Quellenangaben Band: 31, Heft: 19, Seiten: 3377–3391 Artikelnummer: , Supplement: ,
Verlag Oxford University Press
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Diabetes Research (IDF)
POF Topic(s) 30201 - Metabolic Health
Forschungsfeld(er) Helmholtz Diabetes Center
PSP-Element(e) G-502100-001
DOI 10.1093/hmg/ddac050
WOS ID WOS:000784693300001
PubMed ID 35220425
Erfassungsdatum 2022-07-05
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