Genetic Factors Linked to Longevity and Aging Traits
Author Information
Author(s): Lunetta Kathryn L, D'Agostino Ralph B Sr, Karasik David, Benjamin Emelia J, Guo Chao-Yu, Govindaraju Raju, Kiel Douglas P, Kelly-Hayes Margaret, Massaro Joseph M, Pencina Michael J, Seshadri Sudha, Murabito Joanne M
Primary Institution: The National Heart Lung and Blood Institute's Framingham Heart Study
Hypothesis
What genetic factors are associated with longevity and age-related traits?
Conclusion
The study found associations between longevity and aging traits with specific SNPs, although none achieved genome-wide significance.
Supporting Evidence
- Eight SNPs on chromosome 1 were associated with age at death.
- Two SNPs intronic to FOXO1A were linked to lifespan extension in animal models.
- Associations were identified for age at natural menopause and morbidity-free survival at age 65.
Takeaway
Scientists looked at genes to see if they help people live longer and stay healthy as they age. They found some links but need to check them again in other studies.
Methodology
A genome-wide association study was conducted using the Affymetrix 100K SNP GeneChip on a community-based sample from the Framingham Study.
Potential Biases
Potential bias due to the healthier profile of participants who provided DNA.
Limitations
Survival bias may exist as participants had to survive to provide DNA, and the SNP coverage was limited.
Participant Demographics
Participants included 1345 individuals from the Framingham Study, comprising Original and Offspring cohorts.
Statistical Information
P-Value
p<10-5
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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