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Acta bioquímica clínica latinoamericana

On-line version ISSN 1851-6114

Abstract

BARBERO, Julieta Guillermina  and  NICOLAS, Juan Carlos. Immune complexes IgM-modified ApoB100. Acta bioquím. clín. latinoam. [online]. 2017, vol.51, n.1, pp. 75-81. ISSN 1851-6114.

Atherosclerosis is the most prevalent vascular disease, which motivates extensive research on its pathogenesis. Lipoproteins can be modified by acetylation and oxidation mechanisms, at the level of lipid components as protein, becoming atherogenic. Modified Apolipoprotein B100 (ApoB100m), play an active role in the development of atherosclerotic lesions in conjunction with other risk factors. These have the ability to produce immune response leading to antibody production and subsequent formation of immune complexes. The importance of antibodies against ApoB100m in atherogenesis is still unclear since, contradictory data exist on whether their role is protective or atherogenic. Two objectives were established: to determine the levels of circulating immune complexes IgM-ApoB100m by enzyme immunoassay, in normal subjects (without atherogenic risk) and high-risk patients and to establish its correlation with atherogenic risk factors established by a cross-sectional study. Higher mean values of IgM-ApoB100m were obtained in the group of normal subjects. Immune complexes IgM-ApoB100 negatively correlated with classic atherogenic risk factors (male, older, dyslipidemia, increased LDL-C and decreased HDL-C).

Keywords : Immune complex; Immunoglobulin M; apoB100; Atherosclerosis.

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