The relationship between antibeta 2 glycoprotein antibodies and SYNTAX score in patients undergoing coronary artery by-pass graft surgery.

OBJECTIVE: The SYNTAX Score was recently developed to characterize the coronary vasculature with respect to the number of lesion's location, complexity, and functional impact and it is a quantitative scoring system to assist with patient selection for optimal revascularization strategy between percutaneous coronary intervention (PCI) and coronary artery by-pass surgery (CABG). b2-glycoprotein I (b2GPI), a plasma protein that binds cardiolipin, acts as a modulator of platelet aggregation and coagulation. Antibodies to b2GPI may have a role in atherosclerosis by inducing endothelial cell activation. We investigated the relationship between anti beta 2 GPI and severity of coronary artery stenosis by calculating the SYNTAX Score among patients undergoing CABG surgery. PATIENTS AND METHODS: We prospectively investigate 612 patients who undergo elective coronary angiography between September 2012 and June 2013. Patients were evaluated for blood chemistry and anti-b2GPI IgA, IgM and IgG. Ninety seven patients with complete biochemical analysis including anti Beta 2 GPI antibodies and undergone CABG have been enrolled in this study. We divided patients in to 2 groups according to the SYNTAX scores. Group 1 included 48 patients with low SYNTAX scores (<23) and group 2 included 49 patients with intermediate and high SYNTAX scores (>23). RESULTS: There was significant correlation between elevated anti b2GPI IgG levels and higher SYNTAX score which indicate advanced and complex CAD. In this study, lesion complexity increased progressively with increasing anti-b2GPI-IgG type of antibody levels. According to this findings, anti-b2GPI-IgG is a strong predictor of higher SYNTAX score. CONCLUSIONS: In addition to the traditional risk factors for atherosclerosis, the proinflammatory and procoagulant activities of antiphospholipid antibodies appear to be important risk factors for atherosclerotic occlusive disease.

A decreased serum omentin-1 level may be an independent risk factor for peripheral arterial disease.

AIM: Recent evidence suggests that omentin-1, a visceral adipose-derived cytokine, may play a role in atherosclerosis The aim of this study was to evaluate whether serum omentin-1 levels are associated with peripheral artery disease (PAD) and its severity. METHODS: The present study was cross-sectional and observational. We enrolled 123 patients with PAD and 50 age-matched subjects without PAD. The cardiovascular risk factors, ankle-brachial index (ABI), and serum omentin-1 levels were assessed in all participants RESULTS: Patients with PAD had significantly lower omentin-1 levels than those without PAD (206. ±48.4 vs. 345. ±80 ng/mL, respectively; 0.001). A correlation analysis revealed positive correlations between the omentin-1 level and the ABI ( 0.52, P=0.008). After adjusting for cardiovascular risk factors, a decreased omentin-1 level was found to be an independent predictor of both PAD and its severity as measured by ABI in multivariate logistic regression analysis. CONCLUSION: The current study suggests a strong association between decreased serum omentin-1 levels and PAD and its severity. Thus, omentin-1 may be a novel biomarker for PAD.