Exp Clin Endocrinol Diabetes 2012; 120(05): 277-281
DOI: 10.1055/s-0031-1283161
Article
© J. A. Barth Verlag in Georg Thieme Verlag KG Stuttgart · New York

Relationship of Soluble RAGE and RAGE Ligands HMGB1 and EN-RAGE to Endothelial Dysfunction in Type 1 and Type 2 Diabetes Mellitus

J. Škrha Jr
1   Institute of Clinical Biochemistry and Laboratory Diagnostics 1st Faculty of Medicine, Charles University in Prague, Czech Republic
2   3rd Department of Internal Medicine, 1st Faculty of Medicine, Charles University in Prague, Czech Republic
,
M. Kalousová
1   Institute of Clinical Biochemistry and Laboratory Diagnostics 1st Faculty of Medicine, Charles University in Prague, Czech Republic
,
J. Švarcová
1   Institute of Clinical Biochemistry and Laboratory Diagnostics 1st Faculty of Medicine, Charles University in Prague, Czech Republic
,
A. Muravská
1   Institute of Clinical Biochemistry and Laboratory Diagnostics 1st Faculty of Medicine, Charles University in Prague, Czech Republic
,
J. Kvasnička
1   Institute of Clinical Biochemistry and Laboratory Diagnostics 1st Faculty of Medicine, Charles University in Prague, Czech Republic
,
L. Landová
1   Institute of Clinical Biochemistry and Laboratory Diagnostics 1st Faculty of Medicine, Charles University in Prague, Czech Republic
,
T. Zima
1   Institute of Clinical Biochemistry and Laboratory Diagnostics 1st Faculty of Medicine, Charles University in Prague, Czech Republic
,
J. Škrha
2   3rd Department of Internal Medicine, 1st Faculty of Medicine, Charles University in Prague, Czech Republic
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Publikationsverlauf

received21. März 2011
firstdecision26. Juni 2011

accepted 27. Juni 2011

Publikationsdatum:
27. April 2012 (online)

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Abstract

Aims:

Receptor for advanced glycation endproducts (RAGE) plays the essential role in the pathogenesis of diabetic vascular complications. The aim of the study was to compare concentration of soluble RAGE and its ligands (EN-RAGE and HMGB1) with different biochemical parameters in Type 1 (T1DM) and Type 2 (T2DM) diabetes mellitus.

Methods:

Total number of 154 persons (45 T1DM, 68 T2DM, 41 controls) was examined and concentrations of sRAGE, EN-RAGE and HMGB1 were measured and compared to diabetes control, albuminuria, cell adhesion molecules and metalloproteinases (MMPs).

Results:

Mean serum sRAGE concentration was higher in T1DM as compared to controls (1137±532 ng/l vs. 824±309 ng/l, p<0.01). Similarly, EN-RAGE was significantly higher in both diabetic groups (p<0.001) and HMGB1 concentrations were elevated in T2DM patients (p<0.01). Significant relationship was found between MMP9 and HMGB1 and EN-RAGE in diabetic patients. Inverse relationship was observed between MMP2 and MMP9 in both types of diabetic patients (r= − 0.602, p<0.002 and r= − 0.771, p<0.001). Significant positive correlation was found between sRAGE and ICAM-1, VCAM-1 or vWF (p<0.01 to p<0.001).

Conclusion:

We conclude that serum sRAGE and RAGE ligands concentrations reflect endothelial dysfunction developing in diabetes.