Genetic association of rs11610206 SNP on chromosome 12q13 with late-onset Alzheimer's disease in a Han Chinese population

Background: Several genome wide screens and candidate gene studies have implicated the chromosome 12p13 locus as possibly harboring genetic variants predisposed to late-onset Alzheimer's disease (LOAD). Recently, the strongest significant association was reported for the single nucleotide polymorphism (SNP) rs11610206 on chromosome 12q13 in an independent genome-wide association study (GWAS) in Caucasians. Methods: We investigated whether the SNP on chromosome 12q13 was associated with LOAD in a Han Chinese population. The common rs11610206 SNP on chromosome 12q13 was genotyped using MALDI-TOF mass spectrometry in 322 patients with LOAD and in 391 healthy controls matched for sex and age. Results: Patients with LOAD had higher frequencies of T allele (56.0% versus 49.2%) compared with controls [odds ratio (OR) = 1.45, 95% confidence intervals (CI) = 1.08-1.95, and P = 0.01]. After stratification by APOE epsilon 4-carrying status, the T allele of rs11610206 was significantly associated with LOAD only in APOE epsilon 4 allele carriers (OR = 2.05.95% CI = 1.21-3.47, and P = 0.007). Furthermore, multivariate logistic regression analysis showed that the TT genotype carriers demonstrated a 1.52-fold risk when compared with (TC + CC) genotype carriers (OR = 1.52, 95% CI = 1.07-2.17, and P=0.02). Conclusions: This study demonstrates an association of rs11610206 polymorphism locus on chromosome 12q13 with risk for LOAD in Han Chinese. (C) 2010 Elsevier B.V. All rights reserved.