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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 APOE 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 APOE 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 APOE 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. [ABSTRACT FROM AUTHOR]

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Primary cardiac lymphoma (PCL) is one of the rarest tumors of the heart. The most common type is diffuse, large B-cell lymphoma. Most often, the right atrium and the right ventricle are involved, and if not diagnosed and treated in time, it can be fatal. In this case, a female patient underwent an urgent operation for a large, infiltrative, right atrial mass. Extensive resection of the lateral walls of both atria and the interatrial septum as well as reconstruction were performed successfully. The pathological evaluation suggested PCL. The aim of this case is to raise awareness of this disease and to highlight clinical and surgical approaches.