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Clinical Chemistry and Laboratory Medicine (CCLM)

Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)

Editor-in-Chief: Plebani, Mario

Editorial Board Member: Gillery, Philippe / Kazmierczak, Steven / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Schlattmann, Peter / Whitfield, John B.

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Lipid Peroxidation and Antioxidant Defenses in Cystic Fibrosis Patients

Hassiba Benabdeslam / Hassane Abidi / Isabelle Garcia / Gabriel Bellon / Robert Gilly / André Revol

Citation Information: Clinical Chemistry and Laboratory Medicine. Volume 37, Issue 5, Pages 511–516, ISSN (Print) 1434-6621, DOI: 10.1515/CCLM.1999.082, June 2005

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Lipid peroxidation biomarkers and antioxidant status were measured in 76 cystic fibrosis (CF) patients and compared to 40 control subjects. Univariate and multivariate statistics were performed in this study. Results showed that indicators of lipid peroxidation were higher in CF patients than in controls; thiobarbituric acid reactants and autoantibodies against oxidized low-density lipoproteins were significantly increased in CF patients. Red blood cells and whole blood glutathione peroxidase activities were lower in CF patients than in controls. No difference in red blood cell superoxide dismutase activity was observed. Measured concentration of glutathione peroxidase in plasma showed a higher mean value of this protein in CF patients than in controls. Retinol, α-tocopherol and β-carotene concentrations were all reduced in CF patients as compared to controls; this was particularly pronounced for β-carotene. The decreased α-tocopherol concentration was associated with higher percent hemolysis in CF patients. The results of this study indicate that both lipid peroxidation biomarkers and antioxidant status were disturbed in CF patients, despite medical assistance. Measures of oxidative stress parameters, such as thiobarbituric acid reactants, glutathione peroxidase, and β-carotene concentrations can be considered as significant indicators to discriminate CF patients and control subjects.

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