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Effect of erythropoietin therapy and selenium supplementation on selected antioxidant parameters in blood of uremic patients on long-term hemodialysis.
Med Sci Monit. 2002 Mar; 8(3):CR202-5.MS

Abstract

BACKGROUND

The kidney accumulates the highest level of selenium (Se) in the organism and is the major source of plasma glutathione peroxidase (GSH-Px). Se, as an integral part of the active site of GSH-Px, plays an important role in protecting cell membranes from oxidative damage. Decreased blood Se levels and GSH-Px activity are common in chronic renal failure (CRF) patients. Our study was an effort to evaluate the effect of erythropoietin (EPO) therapy and Se supplementation for CRF patients undergoing regular hemodialysis (HD) on blood Se, red cell glutathione (GSH), and blood lipid peroxidation product levels, and on blood activity levels of GSH-Px and blood superoxide dismutase (SOD).

MATERIAL/METHODS

Our subjects were divided into three groups: I - CRF patients on regular HD and EPO, II - HD patients receiving EPO and Se, and III - healthy controls. Se levels, SOD and GSH-Px activities were measured spectrofluorometrically, the GSH level by Beutler's colorimetric method, and lipid peroxidation products using TBARS.

RESULTS

EPO therapy with Se supplementation significantly increased whole blood and plasma Se in HD patients, and raised red cell GSH-Px activity, but plasma GSH-Px activity, plasma superoxide dismutase, and plasma and red cell TBARS did not respond to Se supplementation. EPO alone showed no effect on these parameters.

CONCLUSIONS

Treatment with EPO and supplementation with Se significantly increased the element concentration in whole blood and plasma, and GSH-Px activity in red cells. Plasma GSH-Px activity did not respond to Se.

Authors+Show Affiliations

Department of Nephrology, Medical University, Bydgoszcz, Poland.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11887037

Citation

Adamowicz, Andrzej, et al. "Effect of Erythropoietin Therapy and Selenium Supplementation On Selected Antioxidant Parameters in Blood of Uremic Patients On Long-term Hemodialysis." Medical Science Monitor : International Medical Journal of Experimental and Clinical Research, vol. 8, no. 3, 2002, pp. CR202-5.
Adamowicz A, Trafikowska U, Trafikowska A, et al. Effect of erythropoietin therapy and selenium supplementation on selected antioxidant parameters in blood of uremic patients on long-term hemodialysis. Med Sci Monit. 2002;8(3):CR202-5.
Adamowicz, A., Trafikowska, U., Trafikowska, A., Zachara, B., & Manitius, J. (2002). Effect of erythropoietin therapy and selenium supplementation on selected antioxidant parameters in blood of uremic patients on long-term hemodialysis. Medical Science Monitor : International Medical Journal of Experimental and Clinical Research, 8(3), CR202-5.
Adamowicz A, et al. Effect of Erythropoietin Therapy and Selenium Supplementation On Selected Antioxidant Parameters in Blood of Uremic Patients On Long-term Hemodialysis. Med Sci Monit. 2002;8(3):CR202-5. PubMed PMID: 11887037.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of erythropoietin therapy and selenium supplementation on selected antioxidant parameters in blood of uremic patients on long-term hemodialysis. AU - Adamowicz,Andrzej, AU - Trafikowska,Urszula, AU - Trafikowska,Anna, AU - Zachara,Bronisław, AU - Manitius,Jacek, PY - 2002/3/12/pubmed PY - 2002/7/23/medline PY - 2002/3/12/entrez SP - CR202 EP - 5 JF - Medical science monitor : international medical journal of experimental and clinical research JO - Med Sci Monit VL - 8 IS - 3 N2 - BACKGROUND: The kidney accumulates the highest level of selenium (Se) in the organism and is the major source of plasma glutathione peroxidase (GSH-Px). Se, as an integral part of the active site of GSH-Px, plays an important role in protecting cell membranes from oxidative damage. Decreased blood Se levels and GSH-Px activity are common in chronic renal failure (CRF) patients. Our study was an effort to evaluate the effect of erythropoietin (EPO) therapy and Se supplementation for CRF patients undergoing regular hemodialysis (HD) on blood Se, red cell glutathione (GSH), and blood lipid peroxidation product levels, and on blood activity levels of GSH-Px and blood superoxide dismutase (SOD). MATERIAL/METHODS: Our subjects were divided into three groups: I - CRF patients on regular HD and EPO, II - HD patients receiving EPO and Se, and III - healthy controls. Se levels, SOD and GSH-Px activities were measured spectrofluorometrically, the GSH level by Beutler's colorimetric method, and lipid peroxidation products using TBARS. RESULTS: EPO therapy with Se supplementation significantly increased whole blood and plasma Se in HD patients, and raised red cell GSH-Px activity, but plasma GSH-Px activity, plasma superoxide dismutase, and plasma and red cell TBARS did not respond to Se supplementation. EPO alone showed no effect on these parameters. CONCLUSIONS: Treatment with EPO and supplementation with Se significantly increased the element concentration in whole blood and plasma, and GSH-Px activity in red cells. Plasma GSH-Px activity did not respond to Se. SN - 1234-1010 UR - https://www.unboundmedicine.com/medline/citation/11887037/Effect_of_erythropoietin_therapy_and_selenium_supplementation_on_selected_antioxidant_parameters_in_blood_of_uremic_patients_on_long_term_hemodialysis_ L2 - https://www.medscimonit.com/download/index/idArt/420901 DB - PRIME DP - Unbound Medicine ER -