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Type: Journal article
Title: Effects of moderate-dose omega-3 fish oil on cardiovascular risk factors and mood after ischemic stroke: A randomized, controlled trial
Author: Poppitt, S.
Howe, C.
Lithander, F.
Silvers, K.
Lin, R.
Croft, J.
Ratnasabapathy, Y.
Gibson, R.
Anderson, C.
Citation: Stroke, 2009; 40(11):3485-3492
Publisher: Lippincott Williams & Wilkins
Issue Date: 2009
ISSN: 0039-2499
Statement of
Sally D. Poppitt, Colin A. Howe, Fiona E. Lithander, Karen M. Silvers, Ruey-Bin Lin, John Croft, Yogini Ratnasabapathy, Robert A. Gibson, Craig S. Anderson
Abstract: <h4>Background and purpose</h4>Fish-derived omega-3 fatty acids have long been associated with cardiovascular protection. In this trial, we assessed whether treatment with a guideline-recommended moderate-dose fish oil supplement could improve cardiovascular biomarkers, mood- and health-related quality of life in patients with ischemic stroke.<h4>Methods</h4>Patients with CT-confirmed stroke were randomized to 3 g/day encapsulated fish oil containing approximately 1.2 g total omega-3 (0.7 g docosahexaenoic acid; 0.3 g eicosapentaenoic acid) or placebo oil (combination palm and soy) taken daily over 12 weeks. Serum triglycerides, total cholesterol and associated lipoproteins, selected inflammatory and hemostatic markers, mood, and health-related quality of life were assessed at baseline and follow-up. The primary outcome was change in triglycerides. Compliance was assessed by capsule count and serum phospholipid omega-3 levels (Australian Clinical Trials Registration: ACTRN12605000207617).<h4>Results</h4>One hundred two patients were randomized to fish oil or placebo. Intention-to-treat and per-protocol (>85% compliance) analyses showed no significant effect of fish oil treatment on any lipid, inflammatory, hemostatic, or composite mood parameters measured. Adherence to treatment based on pill count was good (89%) reflected by increased serum docosahexanoic acid (P<0.001) and eicosapentaenoic acid (P=0.0006) in the fish oil group. Analysis of oil composition, however, showed some degradation and potentially adverse oxidation products at the end of the study.<h4>Conclusions</h4>There was no effect of 12 weeks of treatment with moderate-dose fish oil supplements on cardiovascular biomarkers or mood in patients with ischemic stroke. It is possible that insufficient dose, short duration of treatment, and/or oxidation of the fish oils may have influenced these outcomes.
Keywords: DHA
fish oils
Description: © 2009 American Heart Association, Inc.
DOI: 10.1161/STROKEAHA.109.555136
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