<i>APOE</i> Gene Variation’s Impact on Cardiovascular Health: A Case-Control Study
2024
Aya Badeea Ismail | Özlem Balcıoğlu | Barçın Özcem | Mahmut Çerkez Ergoren
Chronic venous insufficiency (CVI) is a common medical condition characterized by impaired functioning of the venous system in the lower extremities. It leads to various symptoms, including varicose veins, leg edema, and skin pigmentation. It is believed that a combination of genetic and environmental factors affect the development of CVI. The <i>APOE</i> gene is of particular interest in this context, as it plays a role in lipid metabolism and inflammation. The ε4 allele (rs429358) has been associated with an increased risk of Alzheimer’s disease, while the ε2 allele (rs7412) has shown a protective effect against Alzheimer’s disease but a strong association with cardiovascular inflammation. This research aimed to investigate the presence of <i>APOE</i> gene variants in individuals with chronic venous insufficiency disease and validate the relationship between this gene and cardiovascular diseases. The study analyzed the expression of <i>APOE</i> gene variants in varicose vein tissue samples from patients and a normal vein in the control group. The results indicated no significant expression of the ε4 allele in either group. However, there was a significant decrease in the expression of the ε2 allele in the patient group. Additionally, a negative correlation was observed between the two single nucleotide polymorphisms (SNPs) in vein tissue. The lower expression of the ε2 allele in patients suggests a potentially reduced risk of cardiovascular disease in these individuals. Consequently, there appears to be a weaker association between the expression of the APOE gene ε2 allele and cardiovascular diseases.
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