Journal
NEPHROLOGY DIALYSIS TRANSPLANTATION
Volume 23, Issue 9, Pages 2918-2924Publisher
OXFORD UNIV PRESS
DOI: 10.1093/ndt/gfn180
Keywords
dialysis; lipids; lipoproteins; n-3 fatty acids
Categories
Funding
- Danish Heart Foundation
- Danish Kidney Foundation
- Research Foundation of Northern Jutland and Pronova Biocare
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Background. Patients with end-stage renal disease (ESRD) have an increased mortality, mainly due to cardiovascular disease (CVD). ESRD is accompanied by several lipid abnormalities, which may be responsible for part of the increased risk of CVD in this population. n-3 polyunsaturated fatty acids (PUFA) lower plasma triglycerides in patients with normal renal function. The aim of the present study was to examine the effect of n-3 PUFA on serum lipid and lipoproteins in patients treated with chronic haemodialysis (H D). Methods. In a double-blind randomized placebo-controlled design, patients with documented CVD, treated with HD for a minimum of 6 months, were randomized to treatment with n-3 PUFA or a control treatment (olive oil). A dietary intake of n-3 PUFA was assessed with a dietary questionnaire. Plasma lipids and lipoproteins and the content of n-3 PUFA in serum phospholipids were measured at baseline and after 3 months. Results. Two hundred and six patients were included. Serum phospholipid levels of n-3 PUFA were significantly higher in patients reporting a high fish intake compared to patients reporting a low fish intake. After 3 months, a significant decrease was seen in serum triglycerides in the n-3 PUFA group compared to the control group (P = 0.01). No significant effect was seen oil total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, Lp(a) or apoB. Conclusion. In patients treated with HD, consumption of fish increases levels of n-3 PUFA. Additional supplementation with n-3 PUFA for 3 months further increases levels of n-3 PUFA and lowers serum triglycerides, but does not significantly affect other plasma lipids or lipoproteins.
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