A genome-wide association study confirms APOE as the major gene influencing survival in long-lived individuals.

Nebel, A., Kleindorp, R., Caliebe, A., Nothnagel, M., Blanche, H., Junge, O., Wittig, M., Ellinghaus, D., Flachsbart, F., Wichmann, H. E., Meitinger, T., Nikolaus, S., Franke, A., Krawczak, M., Lathrop, M. and Schreiber, S. (2011) A genome-wide association study confirms APOE as the major gene influencing survival in long-lived individuals. Mechanisms of Ageing and Development, 132 (6-7). pp. 324-330. DOI 10.1016/j.mad.2011.06.008.

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Abstract

We conducted a case-control genome-wide association study (GWAS) of human longevity, comparing 664,472 autosomal SNPs in 763 long-lived individuals (LLI; mean age: 99.7 years) and 1085 controls (mean age: 60.2 years) from Germany. Only one association, namely that of SNP rs4420638 near the APOC1 gene, achieved genome-wide significance (allele-based P = 1.8 x 10(-10)). However, logistic regression analysis revealed that this association, which was replicated in an independent German sample, is fully explicable by linkage disequilibrium with the APOE allele epsilon 4, the only variant hitherto established as a major genetic determinant of survival into old age. Our GWAS failed to identify any additional autosomal susceptibility genes. One explanation for this lack of success in our study would be that GWAS provide only limited statistical power for a polygenic phenotype with loci of small effect such as human longevity. A recent GWAS in Dutch LLI independently confirmed the APOE-longevity association, thus strengthening the conclusion that this locus is a very, if not the most, important genetic factor influencing longevity. (C) 2011 Elsevier Ireland Ltd. All rights reserved.

Document Type: Article
Keywords: GWAS Longevity APOE onset alzheimers-disease human longevity susceptibility locus crohns-disease foxo3a population genotype centenarians sarcoidosis phenotypes
Research affiliation: Kiel University
Refereed: Yes
DOI etc.: 10.1016/j.mad.2011.06.008
ISSN: 0047-6374
Date Deposited: 01 Nov 2012 04:56
Last Modified: 23 Jan 2013 10:00
URI: http://oceanrep.geomar.de/id/eprint/18196

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