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Vitamin B12 Supplementation in End Stage Renal Diseases: A Systematic Review



Amini M1 ; Khosravi M1 ; Baradaran HR2 ; Atlasi R3
Authors
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Authors Affiliations
  1. 1. Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Endocrine Research Center (Firouzgar), Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
  3. 3. EBM Group, Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Medical Journal of the Islamic Republic of Iran Published:2015

Abstract

Background: Hyperhomocysteinemia is a risk factor for cardiovascular disease particularly in patients with end stage renal disease (ESRD). Vitamin B12 supplementation on its own still remains as a controversial issue for clinicians in decreasing the level of homcysteine in this group of patients. Methods: Using all randomized controlled trials (RCTs), clinical trials and pre-post-trial studies found during January 1999 to March 2014, we conducted a systematic review which assessed the effects of vitamin B12 in decreasing homocysteine levels in patients with ESRD. Results: The findings of this study revealed that, overall, the greatest effect of B12 supplementation on decreasing homocysteine levels in patients with ESRDs occurred when it was combined with folate supplementation. It was also demonstrated that injection treatments might be more beneficial than oral intake treatments. Conclusion: More rigorous studies are needed to draw a firm conclusion about B12 therapy and the level of homocyteine in patients with ESRD.
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