Inflammation markers are associated with metabolic syndrome and ventricular arrhythmia in patients with coronary artery disease
Journal Title: Advances in Hygiene and Experimental Medicine - Year 2016, Vol 70, Issue
Abstract
Background: Inflammation plays a major role in the development and progression of atherosclerosis and coronary artery disease (CAD). Inflammation markers, including white blood cell (WBC) count, C-reactive protein (CRP) and interleukin-6 (IL-6), are widely used for cardiovascular risk prediction.The aim of the study was to establish factors associated with WBC, CRP and IL-6 in patients with CAD. Two functional polymorphisms in genes encoding enzymes participating in adenosine metabolism were analyzed (C34T AMPD1, G22A ADA).Methods: Plasma concentrations of IL-6 were measured using high-sensitivity ELISA kits, and the nephelometric method was used for high-sensitivity CRP (hs-CRP) measurement in 167 CAD patients.Results: Presence of metabolic syndrome (MS) and its components, presence of heart failure, severity of CAD symptoms, severe past ventricular arrhythmia (sustained ventricular tachycardia [sVT] or ventricular fibrillation [VF]), lower left ventricle ejection fraction, higher left ventricle mass index, higher end-diastolic volume and higher number of smoking pack-years were significantly associated with higher WBC, CRP and IL-6. Strong associations with arrhythmia were observed for IL-6 (median 3.90 vs 1.89 pg/mL, p<0.00001) and CRP concentration (6.32 vs 1.47 mg/L, p=0.00009), while MS was associated most strongly with IL-6. CRP and IL-6 were independent markers discriminating patients with sVT or VF. There were no associations between AMPD1 or ADA genotypes and inflammation markers.Conclusions: WBC, CRP and IL-6 are strongly associated with components of the metabolic syndrome. Their strong association with life-threatening ventricular arrhythmia emphasizes the proarrhythmic role of inflammation in the increased cardiovascular risk of CAD patients.
Authors and Affiliations
Krzysztof Safranow, Violetta Dziedziejko, Ryszard Rzeuski, Edyta Czyżycka, Hanna Bukowska, Andrzej Wojtarowicz, Agnieszka Bińczak-Kuleta, Katarzyna Jakubowska, Maria Olszewska, Zdzisława Kornacewicz-Jach, Bogusław Machaliński, Dariusz Chlubek
Keywords
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