NDT Advance Access originally published online on January 12, 2005
Nephrology Dialysis Transplantation 2005 20(2):266-270; doi:10.1093/ndt/gfh571
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Nephrol Dial Transplant Vol. 20 No. 2 © ERAEDTA 2005; all rights reserved
Editorial Comment
Is biofilm a cause of silent chronic inflammation in haemodialysis patients? A fascinating working hypothesis
1 Department of Nephrology, Dialysis and Transplantation, University of Modena, Modena, Italy, 2 Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany and 3 Nephrology and Renal Research and Training Institute, CHU Montpellier, Montpellier, France
Correspondence and offprint requests to: Professor Bernard Canaud, Nephrology, Lapeyronie University Hospital, CHU Montpellier, 371, Avenue du Doyen G. Giraud, 34925 Montpellier, France. Email: b-canaud@chu-montpellier.fr
Keywords: biofilm; chronic inflammation; C-reactive protein; haemodialysis adequacy
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| Introduction |
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Knowledge of biofilm formation and its biological role in chronic subclinical inflammation has largely evolved over the past years [15]. The development of a biofilm is a very effective way for bacteria to survive facing hostile conditions and to resist biocides and antimicrobial substances. The initial event in biofilm formation is the adhesion of microbes to surfaces. The surface properties of medical devices are usually modified by a conditioning film of organic material. The effect of single blood proteins or of whole blood itself depends on bacterial strains. Fibrinogen and fibronectin both enhance Staphylococcus aureus binding and inhibit Staphylococcus epidermidis or Gram-negative bacteria adherence, while whole blood promotes Pseudomonas aeruginosa biofilm formation [6].
Biofilm is not a static simple matrix made of homogeneous slime embedding bacteria. This sessile multicellular community is a dynamic complex system made of exopolysaccharide matrix embedding living microorganisms with a phenotype modified
| Vascular access in haemodialysis patient |
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| Haemodialysis monitors |
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| Conclusions |
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