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Vascular genetic factors and human longevity
Francesco Panza1, Alessia D'Introno, Anna M Colacicco
1Department of Geriatrics, Center for Aging Brain, Memory Unit, University of Bari, Policlinico, Piazza Giulio Cesare, 11-70124 Bari, Italy. geriat.dot@geriatria.uniba.it
Mechanisms of Ageing and Development
|March 12, 2004
Summary
Investigating genetic factors in centenarians reveals apolipoprotein E (APOE) concentration may influence longevity. Regional variations in genes like angiotensin I converting enzyme 1 (ACE1) also suggest complex genetic roles in exceptional lifespan.
Area of Science:
- Genetics and Longevity Research
- Molecular Biology and Aging
- Cardiovascular and Neurological Disease Genetics
Background:
- Complex interrelationships exist between age-associated illnesses like vascular disease and Alzheimer's disease (AD).
- Lipoprotein metabolism and vascular genetic risk factors are implicated in human longevity.
- Previous studies noted higher frequencies of the apolipoprotein E (APOE) epsilon4 allele in middle-aged individuals compared to centenarians.
Purpose of the Study:
- To examine biological and genetic pathways in centenarian populations for insights into human longevity.
- To investigate the role of apolipoprotein E (APOE) levels and alleles in relation to aging and lifespan.
- To review genetic vascular factors potentially involved in exceptional human longevity.
Main Methods:
- Analysis of apolipoprotein E (APOE) allele frequencies in centenarian and middle-aged populations.
- Examination of serum APOE levels across different APOE genotypes (epsilon2, epsilon4) and their association with age, adjusted for HDL cholesterol.
- Review of studies on other genetic factors (e.g., ACE1, MTHFR, APOA-I) implicated in vascular risk and longevity.
Main Results:
- Consistent findings show a higher frequency of the APOE epsilon4 allele in younger individuals compared to centenarians.
- A trend of reduced serum APOE levels from APOE epsilon2 to epsilon4 carriers was observed, with significant age-related differences in epsilon4 carriers after HDL adjustment.
- Replication of increased angiotensin I converting enzyme 1 (ACE1) D allele prevalence in French centenarians was not consistently found, suggesting regional genetic variations.
Conclusions:
- APOE concentration may serve as a potential longevity factor, although further studies are needed for confirmation.
- Regional differences in the frequency of genetic variants like APOE and ACE1 may influence longevity across European populations.
- This review highlights the complex interplay of genetic vascular factors in determining human longevity.