Abstract:
:Metformin is the most commonly used pharmacological therapy for type 2 diabetes. We report a genome-wide association study for glycemic response to metformin in 1,024 Scottish individuals with type 2 diabetes with replication in two cohorts including 1,783 Scottish individuals and 1,113 individuals from the UK Prospective Diabetes Study. In a combined meta-analysis, we identified a SNP, rs11212617, associated with treatment success (n = 3,920, P = 2.9 × 10(-9), odds ratio = 1.35, 95% CI 1.22-1.49) at a locus containing ATM, the ataxia telangiectasia mutated gene. In a rat hepatoma cell line, inhibition of ATM with KU-55933 attenuated the phosphorylation and activation of AMP-activated protein kinase in response to metformin. We conclude that ATM, a gene known to be involved in DNA repair and cell cycle control, plays a role in the effect of metformin upstream of AMP-activated protein kinase, and variation in this gene alters glycemic response to metformin.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
GoDARTS and UKPDS Diabetes Pharmacogenetics Study Group.,Wellcome Trust Case Control Consortium 2.,Zhou K,Bellenguez C,Spencer CC,Bennett AJ,Coleman RL,Tavendale R,Hawley SA,Donnelly LA,Schofield C,Groves CJ,Burch L,Carr F,Stdoi
10.1038/ng.735subject
Has Abstractpub_date
2011-02-01 00:00:00pages
117-20issue
2eissn
1061-4036issn
1546-1718pii
ng.735journal_volume
43pub_type
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