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  • Title: Oxidative stress status in adults with nephrotic syndrome.
    Author: Bulucu F, Vural A, Aydin A, Sayal A.
    Journal: Clin Nephrol; 2000 Mar; 53(3):169-73. PubMed ID: 10749294.
    Abstract:
    BACKGROUND: Excessive generation of reactive oxygen species is one of the incriminated mechanisms in the pathogenesis of progressive renal injury. The role of oxidant stress in acute and chronic glomerular diseases has been investigated through experimental and clinical studies. SUBJECTS, MATERIALS AND METHODS: In the present study, oxidative stress status in adult nephrotic patients was studied by determining plasma selenium levels, erythrocyte and plasma glutathione peroxidase (GSH-Px) activities, erythrocyte superoxide dismutase (Cu-Zn-SOD) activity, erythrocyte and plasma levels of malondialdehyde (MDA). RESULTS: Twenty adult nephrotic syndrome patients included into the study had lower activities of erythrocyte (17.17 +/- 2.29 U/gHb) and plasma (153.76 +/- 20.12 U/l) GSH-Px activities when compared the controls ( 27.05 +/- 7.30 U/gHb and 308.89 +/- 55.04 U/l for erythrocyte and plasma GSH-Px activities, respectively). They also had lower erythrocyte Cu-Zn-SOD activity (1896.30 +/-94.31 U/gHb) than that of the controls (2506.17 +/- 461.08 U/gHb). Erythrocyte (483.40 +/- 37.45 nmol/gHb in patients vs 210.35 +/- 55.55 nmol/gHb in controls) and plasma (4.84 +/- 0.65 nmol/ml in patients vs 2.03 +/- 0.41 nmol/ml in controls) levels of MDA were higher in patients. Plasma selenium levels of the patients (48.0 +/- 7.28 ng/ml) were lower than that of the controls (69.25 +/-5.80 ng/ml). CONCLUSION: In conclusion, these results obtained in adult nephrotic syndrome patients support the previous data indicating an abnormality in antioxidative system of nephrotic patients.
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