Introduction: Most Alzheimer's disease (AD) loci have been discovered in individuals with European ancestry (EA).
Methods: We applied principal component analysis using Gaussian mixture models and an Ashkenazi Jewish (AJ) reference genome-wide association study (GWAS) data set to identify Ashkenazi Jews ascertained in GWAS (n = 42,682), whole genome sequencing (WGS, n = 16,815), and whole exome sequencing (WES, n = 20,504) data sets. The association of AD was tested genome wide (GW) in the GWAS and WGS data sets and exome wide (EW) in all three data sets (EW). Gene-based analyses were performed using aggregated rare variants.
Results: In addition to apolipoprotein E (APOE), GW analyses (1355 cases and 1661 controls) revealed associations with TREM2 R47H (p = 9.66 × 10 ), rs541586606 near RAB3B (p = 5.01 × 10 ), and rs760573036 between SPOCK3 and ANXA10 (p = 6.32 × 10 ). In EW analyses (1504 cases and 2047 controls), study-wide significant association was observed with rs1003710 near SMAP2 (p = 1.91 × 10 ). A significant gene-based association was identified with GIPR (p = 7.34 × 10 ).
Discussion: Our results highlight the efficacy of founder populations for AD genetic studies.
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| http://dx.doi.org/10.1002/alz.13117 | DOI Listing |
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