Abstract
Large-scale genomewide association studies have reported that the CLU rs11136000 polymorphism is significantly associated with Alzheimer’s disease (AD) in people of Caucasian ancestry. Recently, this association was investigated in Asian populations (Chinese, Japanese, and Korean). However, these studies reported either a weak association or no association between the rs11136000 polymorphism and AD. We believe that this discrepancy may be caused by the relatively small sample size of the previous studies and the genetic heterogeneity of the rs11136000 polymorphism in AD among different populations. For this study, we searched the PubMed and AlzGene databases. We selected 18 independent studies (6 studies of Asian populations and 12 of populations of Caucasian ancestry) that evaluated the association between the rs11136000 polymorphism and AD using a case–control experimental design. We evaluated the genetic heterogeneity of the rs11136000 polymorphism in Caucasian and Asian populations. We then investigated the rs11136000 polymorphism by a meta-analysis in Asian populations using allele, dominant, and recessive models. We identified a significant association between rs11136000 and AD with the allele model (P = 2.00 × 10−4) and the dominant model (P = 5.00 × 10−3). Meanwhile, a similar genetic risk of the rs11136000 polymorphism in AD was observed in Asian and Caucasian populations. Further meta-analysis in pooled Asian and Caucasian populations indicated a more significant association with the allele (P = 8.30 × 10−24), dominant (P = 4.46 × 10−17), and recessive (P = 3.92 × 10−12) models. Collectively, our findings from this meta-analysis indicate that the effect of the CLU rs11136000 polymorphism on AD risk in Asian cohorts (Chinese, Japanese, and Korean) is consistent with the protective effect observed in Caucasian AD cohorts.
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Acknowledgments
This research is supported by the grants from the National Nature Science Foundation of China (Grant Number 31171219, 81271213, and 31200934) and US–China Biomedical Collaborative Research Program (NSFC Grant Number 812111108) to Keshen Li.
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Guiyou Liu, Haiyang Wang, and Jiafeng Liu have contributed equally to this work.
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Liu, G., Wang, H., Liu, J. et al. The CLU Gene rs11136000 Variant is Significantly Associated with Alzheimer’s Disease in Caucasian and Asian Populations. Neuromol Med 16, 52–60 (2014). https://doi.org/10.1007/s12017-013-8250-1
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DOI: https://doi.org/10.1007/s12017-013-8250-1