Abstract
In recent years, several studies have reported calcium homeostasis modulator 1 (CALHM1) was a potential gene related to Alzheimer's disease (AD) susceptibility. However, whether CALHM1 p.P86L variation (rs2986017), a risk factor for AD is still controversial. Two independent studies have been performed in the Chinese population and the conclusions have not reached an agreement. In the present study, we performed a replication case–control study in 1301 Chinese subjects including 452 sporadic AD patients and 849 unrelated age and gender-matched controls, to determine whether this variation is a risk factor for AD in the Han Chinese population. We failed to replicate the positive association between the CALHM1 p.P86L variation and AD. In addition, we also examined p.P86L variation in a meta-analysis of 5 independent studies performed in Chinese and other Asian populations and negative association was found in total 2328 AD patients and 2865 controls. Our study suggests that CALHM1 p.P86L variation may not be an AD susceptibility factor in the Han Chinese population.
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