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Arch Neurol. 2011 Mar;68(3):320-8. doi: 10.1001/archneurol.2010.292. Epub 2010 Nov 8.

Identification of novel loci for Alzheimer disease and replication of CLU, PICALM, and BIN1 in Caribbean Hispanic individuals.

Author information

  • 1Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Gertrude H Sergievsky Center, 630 W 168th St, New York, NY 10032, USA.

Abstract

OBJECTIVES:

To identify novel loci for late-onset Alzheimer disease (LOAD) in Caribbean Hispanic individuals and to replicate the findings in a publicly available data set from the National Institute on Aging Late-Onset Alzheimer's Disease Family Study.

DESIGN:

Nested case-control genome-wide association study.

SETTING:

The Washington Heights-Inwood Columbia Aging Project and the Estudio Familiar de Influencia Genetica de Alzheimer study.

PARTICIPANTS:

Five hundred forty-nine affected and 544 unaffected individuals of Caribbean Hispanic ancestry.

INTERVENTION:

The Illumina HumanHap 650Y chip for genotyping.

MAIN OUTCOME MEASURE:

Clinical diagnosis or pathologically confirmed diagnosis of LOAD.

RESULTS:

The strongest support for allelic association was for rs9945493 on 18q23 (P=1.7×10(-7)), but 22 additional single-nucleotide polymorphisms (SNPs) had a P value less than 9×10(-6) under 3 different analyses: unadjusted and stratified by the presence or absence of the APOE ε4 allele. Of these SNPs, 5 SNPs (rs4669573 and rs10197851 on 2p25.1; rs11711889 on 3q25.2; rs1117750 on 7p21.1; and rs7908652 on 10q23.1) were associated with LOAD in an independent cohort from the National Institute on Aging Late-Onset Alzheimer's Disease Family Study. We also replicated genetic associations for CLU, PICALM, and BIN1.

CONCLUSIONS:

Our genome-wide search of Caribbean Hispanic individuals identified several novel genetic variants associated with LOAD and replicated these associations in a white cohort. We also replicated associations in CLU, PICALM, and BIN1 in the Caribbean Hispanic cohort.

PMID:
21059989
[PubMed - indexed for MEDLINE]
PMCID:
PMC3268783
Free PMC Article
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