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Patients with insulin-dependent diabetes or coronary heart disease following rehabilitation express serum fractalkine levels similar to those in healthy control subjects

Authors Maegdefessel L, Schlitt A, Pippig S, Schwaab B, Fingscheidt K, Raaz U, Buerke M, Loppnow H

Published 9 October 2009 Volume 2009:5 Pages 849—857

DOI https://doi.org/10.2147/VHRM.S6829

Review by Single-blind

Peer reviewer comments 3


Lars Maegdefessel1,3, Axel Schlitt1, Susanna Pippig1, Bernhard Schwaab2, Kerstin Fingscheidt2, Uwe Raaz1, Michael Buerke1, Harald Loppnow1

1Universitätsklinik und Poliklinik für Innere Medizin III, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany; 2Klinik Höhenried, Bernried, Bayern, Germany; 3Department of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA

Abstract: The chemokine and adhesion molecule fractalkine and its receptor CX3CR1 have emerged as interesting regulators in inflammation and related atherosclerosis. The pro-inflammatory status may be counteracted by appropriate treatment, such as in rehabilitation. We compared serum fractalkine concentrations of 46 patients with coronary heart disease (CHD) and 47 insulin-dependent diabetic patients (IDDM) following rehabilitation with those of 50 control subjects. Following rehabilitation serum fractalkine levels (477 ± 225 pg/mL) in CHD patients were similar to those in control subjects (572 ± 205 pg/mL; P = 0.303), whereas fractalkine levels were lower in IDDM patients (430 ± 256 pg/mL; P = 0.042). No significant difference between CHD and IDDM patients was present (P = 0.319). Postprandial hyperlipemia may influence inflammation; thus, we investigated fractalkine levels four and eight hours after inducing postprandial hyperlipemia. However, we did not find any significant alterations in CHD and diabetic patients, whereas the fractalkine levels in controls were reduced. In vitro, lipofundin used as a hyperlipemic stimulus was added to vessel wall cells and reduced fractalkine levels. Low fractalkine levels in patients attending rehabilitation indicate a beneficial effect of the rehabilitation procedure on innate inflammatory pathways, such as the chemokine and adhesion molecule fractalkine.

Keywords: inflammation, cytokines, atherosclerosis, fractalkine, coronary heart disease, diabetes, rehabilitation

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