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Marzi, C.* ; Huth, C. ; Kolz, M. ; Grallert, H. ; Meisinger, C. ; Wichmann, H.-E. ; Rathmann, W.* ; Herder, C.* ; Illig, T.

Variants of the transcription factor 7-like 2 gene (TCF7L2) are strongly associated with type 2 diabetes but not with the metabolic syndrome in the MONICA/KORA surveys.

Horm. Metab. Res. 39, 46-52 (2007)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Recently, significant associations between common variants of the transcription factor 7-like 2 gene ( TCF7L2) and type 2 diabetes have been reported. This study was designed to replicate the reported associations of the two highly correlated (r (2)=0.86) TCF7L2 single nucleotide polymorphisms rs12255372 and rs7903146 with type 2 diabetes in a case-control study of 2369 MONICA/KORA participants (678 cases/1691 controls from Augsburg, Germany). To further investigate the pathogenic mechanism underlying these associations, we extended our analyses to the metabolic syndrome (IDF, NCEP definitions) and its components in a population-based study comprising 1404 male and female KORA participants aged 55-74 years. Results of our analyses strongly confirmed the minor T alleles as risk variants for type 2 diabetes (rs7903146: OR (TvsC) [95% CI]=1.36 [1.18;1.58], p=0.00003, and rs12255372: OR (TvsG) [95% CI]=1.31 [1.13;1.51], p=0.0003). Moreover, the T allele at rs7903146 was inversely associated with log-transformed, HOMA-%B (beta=-0.07, p=0.005) as a measure of basal insulin secretion, and log-transformed fasting insulin (beta=-0.06, p=0.02). No association was found with insulin resistance (HOMA-IR) and the metabolic syndrome. These findings support replication evidence that TCF7L2 variants increase type 2 diabetes risk. TCF7L2 may primarily affect pancreatic beta cell function.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter type 2 diabetes; TCF7L2; association study; SNP; replication
Sprache englisch
Veröffentlichungsjahr 2007
HGF-Berichtsjahr 2007
ISSN (print) / ISBN 0018-5043
e-ISSN 1439-4286
Quellenangaben Band: 39, Heft: 1, Seiten: 46-52 Artikelnummer: , Supplement: ,
Verlag Thieme
Verlagsort Stuttgart
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Epidemiology (EPI)
POF Topic(s) 30503 - Chronic Diseases of the Lung and Allergies
30202 - Environmental Health
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-503900-003
G-504090-001
PubMed ID 17226113
Scopus ID 33947607216
Erfassungsdatum 2007-01-30