Background: Atherosclerosis is a complex multifactorial disease and the apolipoprotein E (APOE) polymorphism has been associated to vascular complications of atherosclerosis.
Objectives: To investigate the relationship between the APOE genotypes and advanced peripheral vascular disease.
Materials And Methods: 258 consecutive patients (201 males and 57 females, mean age 70.83 ± 7.89 years) with severe PVD were enrolled in a 42-months longitudinal study (mean 31.65 ± 21.11 months) for major adverse cardiovascular events. At follow-up genotypes of the APOE polymorphism were investigated in blinded fashion.
Results: As compared with ε3/ε3, in ε4-carriers a significant higher incidence of major adverse cardiovascular events (35.58% vs. 20.79%; p = 0.025) and total peripheral revascularization (22.64% vs. 5.06%; p < 0.001) was observed. Prospective analysis, showed that ε4-carriers have an increased hazard ratio for major adverse cardiovascular events (adjusted HR 1.829, 95% CI 1.017-3.287; p = 0.044) and total peripheral revascularization (adjusted HR = 5.916, 95% CI 2.405-14.554, p <0.001).
Conclusions: The ε4 allele seems to be risk factor for major adverse cardiovascular events, and in particular for total peripheral revascularization in patients with advanced atherosclerotic vascular disease.
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Department of Psychology, University of Bath, Bath, UK.
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Dipartimento di Medicina, Chirurgia e Farmacia, University of Sassari, Viale San Pietro 43, Sassari, 07100, Italy.
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College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Department of Chemistry and Biochemistry, College of Computational, Physical, and Mathematical Sciences, Brigham Young University, Provo, Utah, United States of America.
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Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan.
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