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Atherosclerosis. 2010 Jun;210(2):569-74. doi: 10.1016/j.atherosclerosis.2009.12.007. Epub 2009 Dec 16.

Association of plasma soluble E-selectin and adiponectin with carotid plaque in patients with systemic lupus erythematosus.

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  • 1Department of Medicine, Division of Cardiology, New York University Langone School of Medicine, New York, NY 10016, USA.

Abstract

BACKGROUND:

Systemic lupus erythematosus (SLE) is associated with premature atherosclerosis but the mechanisms underlying this association are not understood. The role of endothelial dysfunction is hypothesized.

METHODS:

In predominantly non-Caucasian patients with SLE (N=119) and controls (N=71), carotid ultrasonography was performed and circulating endothelial cells (CECs), soluble endothelial protein C receptor and gene polymorphism at A6936G, soluble E-selectin (sE-selectin), and adiponectin were assessed.

RESULTS:

Carotid plaque was more prevalent among patients than controls (43% vs 17%, p=0.0002). Mean CCA IMT was greater in patients compared to controls (0.59+/-0.19 mm vs 0.54+/-0.11 mm, p=0.03). Among SLE patients, plaque was not associated with smoking, body-mass index, LDL, triglycerides, homocysteine, C-reactive protein, anti-ds DNA antibody, C3, C4, SLE activity, or medications. Age and levels of soluble E-selectin and adiponectin were significantly higher in the SLE patients with plaque compared to those without plaque in univariate and multivariate analyses. sE-selectin and adiponectin were found to serve as independent predictors of carotid plaque and that elevations were persistent over more than one visit. Unexpectedly, these biomarkers were present despite clinical quiescence.

CONCLUSION:

Premature atherosclerosis is a consistent feature of SLE and extends across ethnicities. Higher levels of adiponectin may represent a physiological attempt to limit further endothelial damage already reflected by the elevation in sE-selectin and the observed increase in plaque represents overwhelming of this reparative process by atherogenic stimuli.

Copyright (c) 2009 Elsevier Ireland Ltd. All rights reserved.

PMID:
20044088
[PubMed - indexed for MEDLINE]
PMCID:
PMC3963602
Free PMC Article

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