Purpose: The aim of this study was to investigate the effects of flaxseed oil consumption on serum systemic and vascular inflammation markers, and oxidative stress in hemodialysis (HD) patients.
Methods: In this randomized, double-blind, clinical trial, 34 HD patients were randomly assigned to either the flaxseed oil or the control group. The patients in the flaxseed oil group received 6 g/day flaxseed oil for 8 week, whereas the control group received 6 g/day medium-chain triglycerides (MCT) oil. At baseline and the end of week 8, serum concentrations of high-sensitive C-reactive protein (hs-CRP), soluble intercellular adhesion molecule type 1 (sICAM-1), soluble vascular cell adhesion molecule type 1 (sVCAM-1), sE-selectin, and malondialdehyde (MDA) were measured after a 12- to 14-h fast.
Results: Serum hs-CRP, a systemic inflammation marker, and sVCAM-1, a vascular inflammation marker, reduced significantly in the flaxseed oil group at the end of week 8 compared to baseline (P < 0.05), and the reductions were significant in comparison with the MCT oil group (P < 0.05). There were no significant differences between the two groups in mean changes in serum sICAM-1, sE-selectin, and MDA.
Conclusion: This study indicates that daily consumption of 6 g flaxseed oil reduces serum hs-CRP and sVCAM-1, which are two risk factors for CVD. Therefore, the inclusion of flaxseed oil in the usual diet of HD patients can be considered as a strategy for reducing CVD risk factors.
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