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Apolipoprotein E4: an allele associated with many diseases
1Laboratory of Biomedical Genetics and Metabolism, The Rockefeller University, New York, NY 10021, USA. smithj@rockvax.rockefeller.edu
Annals of Medicine
|April 15, 2000
Summary
Genetic variations in apolipoprotein E (apoE) influence lipoprotein metabolism and health. The apoE E4 allele is linked to reduced longevity and increased risk for cardiovascular and Alzheimer's diseases.
Area of Science:
- Genetics
- Molecular Biology
- Epidemiology
Background:
- Apolipoprotein E (apoE) is a key plasma protein regulating lipoprotein metabolism.
- ApoE is synthesized in the liver and also locally within the brain.
- Three common apoE variants (E2, E3, E4) exist due to genetic polymorphism.
Purpose of the Study:
- To investigate the association between common genetic variations in the apoE gene and successful ageing.
- To understand the impact of apoE polymorphism on various health outcomes.
Main Methods:
- Epidemiological studies were utilized to analyze the association between apoE alleles and health indicators.
- Analysis focused on longevity, plasma cholesterol levels, and disease prevalence.
Main Results:
- The apoE E4 allele is associated with decreased longevity.
- E4 allele carriers exhibit increased plasma cholesterol levels.
- Increased prevalence of cardiovascular disease and Alzheimer's disease is linked to the E4 allele.
Conclusions:
- Common genetic variation in the apoE gene significantly impacts lipoprotein metabolism and overall health.
- The apoE E4 allele is a risk factor for reduced longevity and neurodegenerative diseases.
- Apolipoprotein E genotype may play a crucial role in determining successful ageing.