Effect of heterogeneity on the chromosome 10 risk in late-onset Alzheimer disease

Xueying Liang, Eden R. Martin, Nathalie Schnetz-Boutaud, Jackie Bartlett, Brent Anderson, Stephan Züchner, Harry Gwirtsman, Don Schmechel, Regina Carney, John R. Gilbert, Margaret A. Pericak-Vance, Jonathan L. Haines

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


With the exception of ApoE (APOE), no universally accepted genetic association has been identified with late-onset Alzheimer disease (AD). A broad region of chromosome 10 has engendered continued interest generated from both preliminary genetic linkage and candidate gene studies. To better examine this region, we combined unbiased genetic linkage with candidate gene association studies. We genotyped 36 SNPs evenly spaced across 80.2 Mb in a family-based data set containing 1,337 discordant sibling pairs in 567 multiplex families to narrow the peak region of linkage using both covariate and subset analyses. Simultaneously, we examined five functional candidate genes (VR22, LRRTM3, PLAU, TNFRSF6, and IDE) that also fell within the broad area of linkage. A total of 50 SNPs were genotyped across the genes in the family-based data set and an independent case-control data set containing 483 cases and 879 controls. Of the 50 SNPs in the five candidate genes, 22 gave nominally significant association results in at least one data set, with at least one positive SNP in each gene. SNPs rs2441718 and rs2456737 in VR22 (67.8 Mb) showed association in both family-based and case-control data sets (both P = 0.03). A two-point logarithmic odds (LOD) score of 2.69 was obtained at SNP rs1890739 (45.1 Mb, P = 0.03 in 21% of the families) when the families were ordered from low to high by ApoE LOD score using ordered subset analysis (OSA). These data continue to support a role for chromosome 10 loci in AD. However, the candidate gene and linkage analysis results did not converge, suggesting that there is more extensive heterogeneity on chromosome 10 than previously appreciated.

Original languageEnglish (US)
Pages (from-to)1065-1073
Number of pages9
JournalHuman mutation
Issue number11
StatePublished - Nov 2007


  • Alpha-catenin
  • Alzheimer disease
  • APOE
  • Association
  • Chromosome 10
  • IDE
  • Linkage
  • LRRTM3
  • PLAU
  • VR22

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)


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