The effect of vitamin E supplementation on biomarkers of endothelial function and inflammation among hemodialysis patients: A double-blinded randomized clinical trial

Complementary Therapies in Medicine
Nasim Pirhadi-TavandashtiMonir Sadat Hakemi

Abstract

The present study was aimed to investigate the effect of alpha-tocopherol supplementation on biomarkers of endothelial function (Intercellular Adhesion Molecule 1 and Vascular Cell Adhesion Protein 1) and inflammatory markers (Interleukin 6 and high-sensitivity C-reactive protein) among the hemodialysis patients. To conduct this randomized, double-blinded, and placebo-controlled clinical trial, 49 hemodialysis patients, aged 20-60 years, were recruited and randomly divided into the intervention and control groups. The intervention group (n = 25) received 600 IU alpha-tocopherol soft gels (200 IU three times daily), while the controls (n = 24) consumed the identical placebo soft gels for 10 weeks. At the baseline and end of the study, 7 ml pre-dialysis blood samples were taken from all participants to measure their serum concentrations of ICAM-1, VCAM-1, IL-6, and hs-CRP. Alpha-tocopherol supplementation reduced the serum levels of ICAM-1 and VCAM-1 significantly (-140.67 ± 57.25 ng/ml vs. -15.97 ± 79.19 ng/ml, P = 0.001 for ICAM-1 and --6.79 ± 4.76 ng/ml vs. 1.02 ± 3.22 ng/ml, P = 0.019 for VCAM-1). However, no significant difference was observed between the two groups regarding the serum levels of hs-CRP (-0.15 ± 0.19 mg/l vs....Continue Reading

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