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NDT Advance Access originally published online on June 8, 2006
Nephrology Dialysis Transplantation 2006 21(10):2834-2840; doi:10.1093/ndt/gfl263
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© The Author [2006]. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Impact of iron sucrose therapy on leucocyte surface molecules and reactive oxygen species in haemodialysis patients

Galip Guz, Griet L. Glorieux, Rita De Smet, Marie-Anne F. Waterloos, Raymond C. Vanholder and Annemieke W. Dhondt

Department of Nephrology, Ghent University Hospital, Ghent, Belgium

Correspondence and offprint requests to: Galip Guz, MD, Yale University School of Medicine Departments Nephrology/Immunobiology, The Anlyan Center S510, 300-Cedar Street, New Haven 06520, CT, USA. Email: galip_guz{at}hotmail.com

Background. It has been suggested that iron increases oxidative stress and that an excess of iron contributes to cardiovascular disease and infections in haemodialysis patients. In the present study, the effects of parenterally administered iron on leucocyte surface molecule expression and the production of reactive oxygen species (ROS) were evaluated.

Methods. Ten chronic haemodialysis (HD) patients without iron overload were studied. To each patient, four different regimens were applied: placebo; iron sucrose, either 30 or 100 mg, administered via the outflow dialyser line; and 100 mg of iron sucrose infused via the inflow dialyser line. Blood was sampled at different time points: before, during and after infusion and immediately before the next dialysis session. Levels of CD11b and CD45 expression on granulocytes and of CD11b, CD14 and CD36 on monocytes were determined using flow cytometric analysis. The generation of ROS was quantified using chemiluminescence with and without ex vivo stimulation by phorbol myristate acetate (PMA).

Results. No significant differences among the four different treatment regimes were found, neither in chemilumescence activity nor in the expression of CD11b and CD45 on granulocytes, and of CD11b, CD14 and CD36 on monocytes.

Conclusions. Our results suggest that parenteral infusion of iron sucrose during haemodialysis in patients who have no signs of iron overload has no significant effect on the expression of leucocyte surface molecules and does not increase production of ROS.

Keywords: CD11b; CD14; CD36; CD45; iron sucrose; reactive oxygen species


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