Circulating Levels of Lectin-like Oxidized Low-density Lipoprotein Receptor-1 Are Associated with Inflammatory Markers

Overview

Journal Lipids

Specialty Biochemistry

Date 2008 Sep 11

PMID 18781352

Citations 31

Authors

Valter Lubrano

Serena Del Turco

Giuseppina Nicolini

Pietro Di Cecco

Giuseppina Basta

Affiliations

Soon will be listed here.

Abstract

Lectin-like oxidized-low-density lipoprotein receptor-1 (LOX-1) is increasingly linked to atherosclerotic plaque formation and the soluble form of this receptor may reflect activities of disease. We investigated the associations among levels of sLOX-1, oxidized-low-density lipoprotein (ox-LDL), cytokines and the extension of atherosclerosis in patients with coronary artery disease (CAD). Lipid, TNF-alpha, IL-6, C reactive protein (CRP), ox-LDL, peroxy radical and sLOX-1 levels were measured in 29 controls and 60 patients with CAD, 30 of which with one or two vessels involved (group 1), and 30 patients with three or four vessels involved (group 2). The serum levels of sLOX-1 were significantly and progressively higher in group 1 [611 (346-1,313) pg/ml, median (interquartile range)] and in group 2 [2,143 (824-3,201) pg/ml] than in control subjects [268 (111-767) pg/ml]. LOX-1 levels positively correlated with IL-6 (r = 0.38, P = 0.0042), TNF-alpha (r = 0.38, P = 0.0037), CRP levels (r = 0.32, P = 0.027) and age (r = 0.25, P = 0.048). In the multivariate analysis TNF-alpha resulted the only independent determinant of LOX-1 serum levels (beta-value = 0.304, P = 0.017). These findings suggest that sLOX-1 levels are up-regulated during CAD progression and are associated with inflammatory markers. The measurement of the circulating soluble form of this receptor may be potentially useful in predicting CAD progression in humans.

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