Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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The C allele of ATM rs11212617 does not associate with metformin response in the Diabetes Prevention Program.

OBJECTIVE: The C allele at the rs11212617 polymorphism in the ataxia-telangiectasia-mutated (ATM) gene has been associated with greater clinical response to metformin in people with type 2 diabetes. We tested whether this variant modified the effect of metformin in the Diabetes Prevention Program (DPP), in which metformin reduced diabetes incidence by 31% in volunteers with impaired glucose tolerance. RESEARCH DESIGN AND METHODS: We genotyped rs11212617 in 2,994 DPP participants and analyzed its effects on diabetes incidence and related traits. RESULTS: Contrary to expectations, C carriers enjoyed no preventive advantage on metformin; their hazard ratio, compared with A carriers, was 1.17 ([95% CI 0.96-1.42], P = 0.13) under metformin. There were no significant differences by genotype in metformin's effects on insulin sensitivity, fasting glucose, glycated hemoglobin, or disposition index. CONCLUSIONS: The reported association of rs11212617 with metformin response was not confirmed for diabetes prevention or for effects on relevant physiologic parameters in the DPP.[1]

References

The C allele of ATM rs11212617 does not associate with metformin response in the Diabetes Prevention Program. Florez, J.C., Jablonski, K.A., Taylor, A., Mather, K., Horton, E., White, N.H., Barrett-Connor, E., Knowler, W.C., Shuldiner, A.R., Pollin, T.I. Diabetes. Care (2012) [Pubmed]

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