Abstract
Because genetic predisposition to atherothrombosis in systemic lupus erythematosus (SLE) remains to be determined, the most common genetic prothrombotic factors, prothrombin G20210A and factor V Leiden mutations, were studied. Seventy-four SLE patients with vascular ischemia (SLE cases) were studied and stratified into myocardial infarction and/or cerebrovascular accident subgroup (MI/CVA), and coronary heart disease subgroup without overt arterial thrombotic events (CHD). Seventy-one SLE patients without atherothrombosis were investigated as SLE controls. Factor V Leiden was detected in six cases (five in MI/CVA, one in CHD group) and three controls (OR 2.00, 95%CI 0.48-8.32). Two cases (both CHD patients) had prothrombin G20210A mutation vs. three controls (OR 0.63, 95%CI 0.1-3.88). Anticardiolipin antibodies (aCL) were increased in cases vs. controls (39/74 vs. 27/71); however, this was not statistically significant (OR 1.82, 95%CI 0.94-3.52). Neither univariate nor multivariate analysis indicated that investigated mutations are risk factors for atherothrombosis in SLE cases, MI/CVA, or CHD subgroups. Overall, disease activity was the strongest risk factor for atherothrombosis (p=0.0014) in SLE cases. Combination of disease ...Continue Reading
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