Alterations of erythrocyte structure and cellular susceptibility in patients with chronic renal failure: Effect of haemodialysis and

Joanna Brzeszczywska, Marek Luciak, Krzysztof Gwozdzinski

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    The aim of this study was to investigate erythrocytes rheological behaviour, membrane dynamics and erythrocytes susceptibility to disintegration upon strong oxidative stress induced by dialysis or by external H2O2 among patients with CRF. EPR spectrometry was used to investigate alterations in physical state of cellular components. Generated ROS production induced: (1) significant increase of membrane fluidity in CRF erythrocytes treated with H2O2 (p<0.005) and at 60 min of haemodialysis (p<0.05), (2) significant decrease of cytoskeletal protein-protein interactions (p<0.005) and (3) cellular osmotic fragility (p<0.0005). H2O2 exacerbated these changes. Erythrocytes from CRF patients have changed rheological behaviour and present higher susceptibility to disintegration. Erythrocytes membrane characteristics indicate that CRF patients possess younger and more flexible cells, which are more susceptible to oxidative stress. This may contribute to the shortened survival of young erythrocytes in CRF patients.

    Original languageEnglish
    Pages (from-to)40-48
    Number of pages9
    JournalFree Radical Research
    Volume42
    Issue number1
    DOIs
    Publication statusPublished - Jan 2008

    Keywords

    • Chronic renal failure
    • Cytoskeleton
    • Erythrocyte
    • Hydrogen peroxide
    • Osmotic fragility
    • Rheology

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