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Nephrol Dial Transplant (2003) 18: 2577-2581
© 2003 European Renal Association-European Dialysis and Transplant Association

Original Article

Glycoxidation and inflammation in chronic haemodialysis patients

Marta Kalousová1,2, Sylvie Sulková3, Lenka Fialová1, Jirina Soukupová2, Ivan Matous Malbohan1,2, Pavel Spacek4, Martin Braun4, Ludmila Mikulíková2, Magdaléna Fortová3, Magdaléna Horejsí3, Vladimír Tesar5 and Tomás Zima2

1Institute of Medical Biochemistry, 2Institute of Clinical Chemistry, 3Department of Medicine Strahov, 4Institute of Rheumatology and 5First Department of Medicine–Division of Nephrology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic

Correspondence and offprint requests to: Marta Kalousová, MD, Institute of Medical Biochemistry, First Faculty of Medicine, Charles University, Katerinská 32, CZ 121 08 Prague 2, Czech Republic. Email: mkalousova{at}hotmail.com

Background. Uraemia and haemodialysis treatment are associated with microinflammation and oxidative as well as carbonyl stress, which result in enhanced formation of glycoxidation products. Although both glycoxidation and inflammation can contribute to severe vascular and cardiovascular complications, the role that these pathogenic mechanisms play in the complex response of the whole organism remains to be elucidated.

Methods. We performed a cross-sectional study in 34 clinically stable chronic haemodialysis patients and in 14 healthy controls while determining serum concentrations of pentosidine, fluorescent advanced glycation end-products (AGEs), advanced oxidation protein products (AOPPs) and acute phase reactants. We further assessed the relationship between these glycoxidation products and parameters of inflammation.

Results. Glycoxidation products as well as certain acute phase reactants were elevated in haemodialysis patients. There were significant correlations between AOPPs and inflammatory parameters such as orosomucoid (0.39, P < 0.05), fibrinogen (0.49, P < 0.05) and pregnancy-associated protein A (PAPP-A; 0.46, P < 0.05), but no correlations between pentosidine or fluorescent AGEs and any of the inflammatory parameters.

Conclusion. Oxidative damage showed a closer relationship to inflammation than advanced glycation (glycoxidation). AOPPs may represent a superior acute biochemical marker, whereas AGEs may better describe chronic long-lasting damage.

Keywords: advanced glycation end-products; advanced oxidation protein products; carbonyl stress; haemodialysis; inflammation; oxidative stress


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