Genome-wide association study and meta-analysis find that over 40 loci affect risk of type 1 diabetes

Jeffrey C Barrett, David G Clayton, Patrick Concannon, Beena Akolkar, Jason D Cooper, Henry A Erlich, Cécile Julier, Grant Morahan, Jørn Nerup, Concepcion Nierras, Vincent Plagnol, Flemming Pociot, Helen Schuilenburg, Deborah J Smyth, Helen Stevens, John A Todd, Neil M Walker, Stephen S Rich, Type 1 Diabetes Genetics Consortium (Jesper Johannesen, member)

1461 Citationer (Scopus)

Abstract

Type 1 diabetes (T1D) is a common autoimmune disorder that arises from the action of multiple genetic and environmental risk factors. We report the findings of a genome-wide association study of T1D, combined in a meta-analysis with two previously published studies. The total sample set included 7,514 cases and 9,045 reference samples. Forty-one distinct genomic locations provided evidence for association with T1D in the meta-analysis (P < 10(-6)). After excluding previously reported associations, we further tested 27 regions in an independent set of 4,267 cases, 4,463 controls and 2,319 affected sib-pair (ASP) families. Of these, 18 regions were replicated (P < 0.01; overall P < 5 × 10(-8)) and 4 additional regions provided nominal evidence of replication (P < 0.05). The many new candidate genes suggested by these results include IL10, IL19, IL20, GLIS3, CD69 and IL27.

OriginalsprogEngelsk
TidsskriftNature Genetics
Vol/bind41
Udgave nummer6
Sider (fra-til)703-7
Antal sider5
ISSN1061-4036
DOI
StatusUdgivet - jun. 2009
Udgivet eksterntJa

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