Genome-wide linkage analysis for human longevity: Genetics of Healthy Aging Study.
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Clear evidence exists for heritability of human longevity, and much interest is focused on identifying genes associated with longer lives. To identify such longevity alleles, we performed the largest genome-wide linkage scan thus far reported. Linkage analyses included 2118 nonagenarian Caucasian sibling pairs that have been enrolled in 15 study centers of 11 European countries as part of the Genetics of Healthy Aging (GEHA) project. In the joint linkage analyses, we observed four regions that show linkage with longevity; chromosome 14q11.2 (LOD = 3.47), chromosome 17q12-q22 (LOD = 2.95), chromosome 19p13.3-p13.11 (LOD = 3.76), and chromosome 19q13.11-q13.32 (LOD = 3.57). To fine map these regions linked to longevity, we performed association analysis using GWAS data in a subgroup of 1228 unrelated nonagenarian and 1907 geographically matched controls. Using a fixed-effect meta-analysis approach, rs4420638 at the TOMM40/APOE/APOC1 gene locus showed significant association with longevity (P-value = 9.6 × 10(-8) ). By combined modeling of linkage and association, we showed that association of longevity with APOEε4 and APOEε2 alleles explain the linkage at 19q13.11-q13.32 with P-value = 0.02 and P-value = 1.0 × 10(-5) , respectively. In the largest linkage scan thus far performed for human familial longevity, we confirm that the APOE locus is a longevity gene and that additional longevity loci may be identified at 14q11.2, 17q12-q22, and 19p13.3-p13.11. As the latter linkage results are not explained by common variants, we suggest that rare variants play an important role in human familial longevity.
Aged, 80 and over
Chromosomes, Human, Pair 14
Chromosomes, Human, Pair 17
Chromosomes, Human, Pair 19
Genome-Wide Association Study
Membrane Transport Proteins
Published Version (Please cite this version)10.1111/acel.12039
Publication InfoAyers, KL; Beekman, M; Bezrukov, V; Blanché, H; Christensen, Kaare; Christiansen, L; ... Westendorp, RGJ (2013). Genome-wide linkage analysis for human longevity: Genetics of Healthy Aging Study. Aging Cell, 12(2). pp. 184-193. 10.1111/acel.12039. Retrieved from http://hdl.handle.net/10161/14718.
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