INTRODUCTION: The anti-atherogenic and hypotriglyceridemic properties of fish oil are attributed to its enrichment in eicosapentaenoic acid (EPA; 20:5, n-3) and docosahexaenoic acid (DHA; 22:6, n-3). Echium oil contains stearidonic acid (SDA; 18:4, n-3), which is metabolized to EPA in humans and mice, resulting in decreased plasma triglycerides. OBJECTIVE: We used apoB100 only, LDLrKO mice to investigate whether echium oil reduces atherosclerosis. METHODS: Mice were fed palm, echium, or fish oil-containing diets for 16 weeks and plasma lipids, lipoproteins, and atherosclerosis were measured. RESULTS: Compared to palm oil, echium oil feeding resulted in significantly less plasma triglyceride and cholesterol levels, and atherosclerosis, comparable to that of fish oil. CONCLUSION: This is the first report that echium oil is anti-atherogenic, suggesting that it may be a botanical alternative to fish oil for atheroprotection.
INTRODUCTION: The anti-atherogenic and hypotriglyceridemic properties of fish oil are attributed to its enrichment in eicosapentaenoic acid (EPA; 20:5, n-3) and docosahexaenoic acid (DHA; 22:6, n-3). Echium oil contains stearidonic acid (SDA; 18:4, n-3), which is metabolized to EPA in humans and mice, resulting in decreased plasma triglycerides. OBJECTIVE: We used apoB100 only, LDLrKO mice to investigate whether echium oil reduces atherosclerosis. METHODS:Mice were fed palm, echium, or fish oil-containing diets for 16 weeks and plasma lipids, lipoproteins, and atherosclerosis were measured. RESULTS: Compared to palm oil, echium oil feeding resulted in significantly less plasma triglyceride and cholesterol levels, and atherosclerosis, comparable to that of fish oil. CONCLUSION: This is the first report that echium oil is anti-atherogenic, suggesting that it may be a botanical alternative to fish oil for atheroprotection.
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