Carotid Intima-Media Thickness and Anti-Phospholipid Antibodies in Patients with Systemic Lupus Erythematosus
EUROPEAN JOURNAL OF INFLAMMATION(2009)
摘要
An increase in mortality due to accelerated atherosclerosis has been reported in patients affected with Systemic Lupus Erythematosus (SLE). Anti-phospholipid antibodies (aPA) may play a pathogenetic role in the development of atherosclerosis. We measured carotid intima-media thickness (IMT), as a surrogate parameter of atherosclerosis, by B-mode ultrasound examination in 42 patients affected with SLE (11 men and 31 women) and in 42 healthy age- and sex-matched subjects. Lupus Anticoagulant (LA) (APTT sensitive, silica clotting time, DRVVT), Anti-cardiolipin antibodies (ACA) IgG and IgM, anti-beta 2glycoprotein 1 (anti-beta 2GPI) IgG and IgM and anti-prothrombin (anti-PT) IgG and IgM in ELISA (Orgentec Bouty) were also detected. IMT was 0.538 +/- 0.128 mm (0.310-0.866 mm) in SLE vs 0.473 +/- 0.084 mm in healthy subjects (-p 0.003-). IMT correlated with patients' age (p < 0.005) and with C Reactive Protein (CRP) (p < 0.005), but not with years of disease, hypertension, number of anti-hypertensive drugs, total cholesterol, serum creatinine and proteinuria. Sixteen patients (38%) had aPL: 12 LA, 6 ACA IgG, 4 ACA IgM, 4 anti-p2GP1 IgG, 3 anti-beta 2GP1 IgM, 2 anti-PT IgG and 1 anti-PT IgM. IMT was not statistically correlated with aPA. Positive and negative aPA patients only differed as regards glomerular filtration rate (76 ml/min vs 113 ml/min - p < 0.01-). Frequency of aPA positivity was 50% in patients with IMT > 0.600 mm and 33.3% in those with IMT < 0.600 mm. If LA positivity was considered separately, it was 41.6% in patients with IMT > 0.600 mm and 23.3% in patients with IMT < 0.600 mm. Among the 5 patients with IMT > 0.7 mm, 2 had LA positivity (40%) vs 10/37 (27%) of those with minor carotid thickness. In conclusion, IMT, a surrogate parameter of atherosclerosis, was correlated with patients' age and CRP and not with presence of aPA, even though, in the group of patients with greater IMT, there was a non-significant higher proportion of positivity for anti-phospholipid antibodies, in particular for Lupus Anticoagulant.
更多查看译文
关键词
anti phospholipid antibodies,atherosclerosis,intima-media thickness,lupus
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要