Hyperhomocysteinemia and Smoking in Primary Antiphospholipid Syndrome
2009
Bećarević, Mirjana | Mirković, Duško | Majkić-Singh, Nada
The thrombotic tendency in antiphospholipid syndrome (APS) shares several pathways with atherosclerosis. Atherothrombosis (atherosclerosis superimposed with thromboses) is influenced by nonmodifiable and some modifiable risk factors (smoking, obesity, physical inactivity, alcohol abuse, hyperhomocysteinemia). Therefore, we investigated the association among clinical and serological features of patients with primary APS and potentially modifiable risk factors for the development of atherothrombosis. Also, we compared the analyzed parameters with those in control subjects. Homocysteine concentrations were detected by HPLC (high performance liquid chromatography), while antiphospholipid antibodies were detected by ELISA. Smokers had elevated levels of homocysteine (χ² = 6.22, p < 0.05). Independently of patients' age, the association between increased levels of homocysteine and history of myocardial infarctions was found (χ² = 4.61, p < 0.05). Hyperhomocysteinemia and smoking are the most important modifiable risk factors for atherothrombosis in primary APS.
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