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A modified dialyzer with vitamin E and antioxidant defense parameters
M Mydlík1, K Derzsiová, O Rácz
1Nephrological Clinic, University Hospital of L. Pasteur, Kosice, Slovak Republic.
Kidney International. Supplement
|February 13, 2001
Summary
A modified dialyzer with vitamin E improved antioxidant defense in hemodialysis patients more effectively than oral vitamin E. This approach reduced oxidative stress markers like malondialdehyde (MDA).
Area of Science:
- Nephrology
- Oxidative Stress Research
- Biochemistry
Background:
- Hemodialysis patients face accelerated atherosclerosis due to oxidative stress and reduced antioxidant defenses.
- Investigating interventions to mitigate oxidative stress in hemodialysis is crucial for patient outcomes.
Purpose of the Study:
- To evaluate the efficacy of a modified dialyzer incorporating vitamin E in enhancing antioxidant defense in hemodialysis patients.
- To compare the effectiveness of vitamin E delivered via a modified dialyzer versus oral supplementation.
Main Methods:
- Eight hemodialysis patients were studied over three 3-week periods.
- Measurements included erythrocyte antioxidant enzymes (SOD, GPX), plasma total antioxidant capacity (TAC), malondialdehyde (MDA), and vitamins A, E, and C.
- Interventions included a conventional dialyzer, oral vitamin E, and a modified dialyzer with integrated vitamin E.
Main Results:
- Oral vitamin E significantly increased serum vitamin E but did not affect other antioxidant parameters.
- The modified dialyzer with vitamin E significantly increased serum vitamin E and TAC, while decreasing plasma MDA.
- The modified dialyzer demonstrated a more pronounced effect on vitamin E levels compared to oral administration.
Conclusions:
- A modified dialyzer delivering vitamin E offers superior antioxidant defense compared to oral vitamin E supplementation in hemodialysis patients.
- This novel dialyzer approach effectively combats oxidative stress, potentially impacting atherosclerosis progression.