Abstract
Aim of the workEarly cardiovascular disease is an important cause of morbidity and mortality in systemic lupus erythematosus (SLE). The study was designed to assess the relationship between the serum levels of adipokines and atherosclerotic risk factors in SLE patients. Patients and methods56 patients and 31 control were included. Serum levels of leptin, adiponectin, traditional and new risk factors for atherosclerosis including plasma glucose levels, lipid profile, high-sensitivity C-reactive protein (hs-CRP), vascular cell adhesion molecule-1 (VCAM-1) and homocysteine were measured. The intima-media thickness (IMT) of the carotid was measured by ultrasonography. The SLE disease activity index (SLEDAI-2k) was assessed. ResultsThe patients mean age was 30.8 ± 9.9 years, disease duration was 55.7 ± 59.3 months and were 54 (91.5%) females and 5 (8.5%) males. Serum adiponectin levels were significantly lower in patients (3.58 ± 0.4 ng/ml) compared to control (3.9 ± 0.26 ng/ml) (p < 0.001) while leptin levels were comparable. Serum adiponectin levels correlated with triglyceride (r = 0.3, p = 0.003) and high-density lipoprotein (HDL) (r = 0.2, p = 0.04). Serum leptin significantly correlated with the BMI and total cholesterol (r = 0.43, p = 0.002 and r = 0.3, p = 0.04 respectively) as well as with the anti-double stranded deoxyribonucleic acid (anti-dsDNA) (r = 0.28, p = 0.04). There was lack of a meaningful relationship between serum adiponectin and leptin levels and disease duration or risk factors such as hsCRP, VCAM, homocysteine and IMT as well as with the SLEDAI-2k or complement. ConclusionsSerum adiponectin levels inversely correlate with HDL. A significant correlation of leptin with BMI and total cholesterol was found in SLE. None of the two adipokines were associated with atherosclerosis as assessed with the carotid IMT or with the disease activity.
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