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Apolipoprotein E genotype and age at menopause.
Jalal Koochmeshgi1, Seyed Mehdi Hosseini-Mazinani, Seyed Morteza Seifati
1National Research Center for Genetic Engineering and Biotechnology, P. O. Box 14155-6343, Tehran, Iran. jkoochmeshgi@yahoo.co.uk
Annals of the New York Academy of Sciences
|July 13, 2004
Summary
The apolipoprotein E (APOE) genotype influences the timing of natural menopause. APOE4 allele carriers experience menopause earlier, impacting human evolution and age-associated disease research.
Area of Science:
- Genetics
- Reproductive Biology
- Human Evolution
Background:
- The apolipoprotein E (APOE) gene is crucial for lipid metabolism and has been implicated in various physiological processes.
- Understanding factors influencing the timing of menopause is important for reproductive health and aging research.
Purpose of the Study:
- To investigate the association between apolipoprotein E (APOE) genotype and the age at which women experience natural menopause.
- To explore the evolutionary implications of APOE polymorphism in relation to human life history.
Main Methods:
- Survival analysis was employed to analyze data from a cohort of women aged 50-60 years who had undergone natural menopause.
- APOE genotype was assessed in relation to the age at menopause.
Main Results:
- A significant relationship was identified between APOE genotype and age at natural menopause.
- Women carrying the APOE4 allele reached menopause at a significantly earlier age compared to non-carriers.
Conclusions:
- The APOE genotype, specifically the presence of the APOE4 allele, is a determinant of earlier age at menopause.
- These findings contribute to understanding human polymorphism evolution, life history, and the links between reproductive timing and age-related diseases.