Antioxidants in the treatment of patients with renal failure

Area of Science:

• Nephrology
• Biochemistry
• Oxidative Stress Research

Background:

• Renal failure is characterized by increased oxidative stress due to heightened reactive oxygen species production and weakened antioxidant defenses.
• Oxidative stress plays a significant role in the pathophysiology of chronic kidney disease.

Purpose of the Study:

• To review and evaluate therapeutic interventions aimed at mitigating oxidative stress in patients with chronic renal failure.
• To assess the current evidence supporting the clinical efficacy of antioxidant therapies in this patient population.

Main Methods:

• Review of suggested therapeutic strategies for reducing oxidative stress in chronic renal failure.
• Analysis of data regarding the clinical benefits of antioxidant interventions.
• Evaluation of indirect approaches affecting oxidative stress, such as erythropoietin and sodium selenite administration.

Main Results:

• Several interventions are proposed, including biocompatible membranes, ultrapure dialysate, infection control, haemolipodialysis, electrolysed reduced water, and direct antioxidant administration (alpha-tocopherol, ascorbic acid, N-acetylcysteine, reduced glutathione).
• Substances like erythropoietin and sodium selenite are also considered for their potential indirect effects on oxidative stress.
• Currently available data provide limited evidence for the clinical benefit of antioxidant interventions in renal failure patients.

Conclusions:

• Existing evidence is insufficient to establish practical recommendations for antioxidant treatment in patients with renal failure.
• Further research is needed to determine the efficacy and clinical utility of various interventions targeting oxidative stress in chronic kidney disease.