Haplotype-based identification of a microsomal transfer protein marker associated with the human lifespan.

Authors: Geesaman BJ; Benson E; Brewster SJ; Kunkel LM; Blanché H; Thomas G; Perls TT; Daly MJ; Puca AA

Abstract: We previously reported a genomewide linkage study for human longevity using 308 long-lived individuals (LLI) (centenarians or near-centenarians) in 137 sibships and identified statistically significant linkage within chromosome 4 near microsatellite D4S1564. This interval spans 12 million bp and contains approximately 50 putative genes. To identify the specific gene and gene variants impacting lifespan, we performed a haplotype-based fine-mapping study of the interval. The resulting genetic association study identified a haplotype marker within microsomal transfer protein as a modifier of human lifespan. This same variant was tested in a second cohort of LLI from France, and although the association was not replicated, there was evidence for statistical distortion in the form of Hardy-Weinberg disequilibrium. Microsomal transfer protein has been identified as the rate-limiting step in lipoprotein synthesis and may affect longevity by subtly modulating this pathway. This study provides proof of concept for the feasibility of using the genomes of LLI to identify genes impacting longevity.

Keywords: Adolescent; Adult; Aged; Aged, 80 and over; Alleles; Apolipoproteins E/genetics; Biological Markers; Carrier Proteins/*genetics/physiology; Case-Control Studies; Chromosomes, Human, Pair 4/genetics; Cohort Studies; Female; Genetic Linkage; Haplotypes/*genetics; Humans; Longevity/*genetics/physiology; Male; Microsomes/metabolism; Middle Aged; Polymorphism, Single Nucleotide
Journal: Proceedings of the National Academy of Sciences of the United States of America
Volume: 100
Issue: 24
Pages: 14115-20
Date: Nov. 15, 2003
PMID: 14615589
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Citation:

Geesaman BJ, Benson E, Brewster SJ, Kunkel LM, Blanché H, Thomas G, Perls TT, Daly MJ, Puca AA (2003) Haplotype-based identification of a microsomal transfer protein marker associated with the human lifespan. Proceedings of the National Academy of Sciences of the United States of America 100: 14115-20.


Lifespan Factors:
  • APOE apolipoprotein E

  • Longevity Variant Associations (p-value):
  • Q/H 95
  • rs2866164
  • Q/H 95, rs2866164 (0.0005)
  • rs752766 (0.0058)
  • rs951085 (0.0041)
  • rs750032 (0.0029)
  • rs1553432 (0.0005)
  • rs429358, rs7412

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