[Characteristics of autoimmune reactions in chronic cardiac failure of different etiology].

ABSTRACT

AIM: To characterize autoimmune reactions in patients with chronic cardiac failure (CCF) of different etiology. MATERIAL AND METHODS: Basic markers of immune activation were measured in 43 patients with coronary heart disease stage I-IIB (NYHA FC I-IV) and 44 patients with dilated cardiomyopathy (DCMP) stage I-IIB (NYHA FC I-IV). Antibodies to myocardial tissue were studied with indirect immunofluorescence. Echocardiography was made by standard recommendations with evaluation of systolic and diastolic left ventricular function. Concentrations of C-reactive protein, IgG, IgA, IgM were estimated nephelometrically. Enzyme immunoassay studied serum levels of IL-8, IL-2R, IL-6, IL-18, IL-10, IFN-gamma, endothelin. RESULTS: Patients with DCMP had higher titers of antimyocardial autoantibodies than in coronary heart disease (CHD) reflecting more severe autoimmune inflammation. In CHD endothelial, systolic and diastolic dysfunctions severity correlated with severity of inflammation. CONCLUSION: Some characteristics of autoimmune reactions in CCF determine severity of the disease course.