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How Important Are Genes to Achieve Longevity?

Calogero Caruso1, Mattia Emanuela Ligotti1,2, Giulia Accardi1

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|May 28, 2022
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Summary
This summary is machine-generated.

Genetic factors influencing longevity are complex and population-specific. While APOE and FOXO3A genes show consistent links, studying long-life families offers a promising avenue for discovering longevity-associated genes.

Keywords:
APOEFOXO3AGWASSNPgeneslong-life familieslongevitysurvival

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Area of Science:

  • Genetics
  • Gerontology
  • Population Health

Background:

  • Longevity research has identified limited shared genetic determinants across diverse populations.
  • Environmental history significantly influences the genetic basis of lifespan.
  • Genome-Wide Association Studies (GWAS) often fail to replicate longevity-associated variants due to population heterogeneity.

Purpose of the Study:

  • To review existing literature on the genetics of longevity.
  • To explore the challenges in identifying universal longevity genes.
  • To highlight alternative approaches for uncovering genetic factors in aging.

Main Methods:

  • Systematic review of genetic studies on longevity.
  • Analysis of gene associations (APOE, FOXO3A) with lifespan.
  • Discussion of population-specific genetic influences.
  • Evaluation of Genome-Wide Association Studies (GWAS) limitations.
  • Consideration of long-life family studies as a research model.

Main Results:

  • Only the APOE and FOXO3A genes consistently show associations with longevity across studies.
  • Longevity is influenced by dynamic, population-specific genetic factors rather than universally shared ones.
  • GWAS studies have yielded few replicated associations due to the pooling of diverse populations.
  • Long-life family studies are emerging as a valuable resource for identifying protective alleles.

Conclusions:

  • Identifying universal genetic determinants of longevity is challenging due to population-specific environmental interactions.
  • Focusing on population-specific genes and studying familial longevity cohorts may yield greater insights into healthy aging.
  • Future research should prioritize methodologies that account for genetic heterogeneity and environmental influences on lifespan.