Candidate gene association study of insulin signaling genes and Alzheimer's disease: Evidence for <i>SOS2</i>, <i>PCK1</i>, and <i>PPARγ</i> as susceptibility loci

Gillian Hamilton, Luke Jehu, Angharad R. Morgan, Julie Williams, Michael O‘Donovan, Michael J. Owen, John Powell, Simon Lovestone

American Journal of Medical Genetics Part B Neuropsychiatric Genetics · 2007 · 67 citations · 33 references

Concepts

Abstract

Epidemiological evidence supports the existence of a possible link between type II diabetes mellitus (T2DM) and late-onset Alzheimer's disease (LOAD). Polymorphisms from candidate genes for T2DM were genotyped in a two-stage approach to identify novel risk factors for LOAD. One hundred fifty-two polymorphisms were initially genotyped in a case:control cohort: nine SNPs showed individual association with disease status under at least one genetic model, while an additional two SNPs showed a haplotype association. In a replication study, we confirmed significant association of SNPs within three genes--PPARgamma, SOS2, and PCK1--with Alzheimer's disease. In particular, our data suggest that the effect of variants within these genes might be influenced by gender.

References

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