1. Prolonged inhibition of platelet aggregation after n-3 fatty acid ethyl ester ingestion by healthy volunteers
- Author
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Tremoli, Elena, Maderna, Paola, Marangoni, Franca, Colli, Susanna, Eligini, Sonia, Catalano, Isabella, Angeli, Maria Teresa, Pazzucconi, Franco, Gianfranceschi, Gemma, Davi, Giovanni, Stragliotto, Eduardo, Sirtori, Cesare R., and Galli, Claudio
- Subjects
Omega-3 fatty acids -- Physiological aspects ,Blood platelets -- Aggregation ,Food/cooking/nutrition ,Health - Abstract
This study addressed two questions: 1) whether a relatively low dose of n-3 fatty acid ethyl esters (n-3 FAs) administered to healthy volunteers for a prolonged period of time would exert beneficial effects on plasma lipids, platelet function, and thromboxane biosynthesis; and 2) whether a short-term loading treatment (6 wk) with 6 g n-3 FAs/d followed by 12 wk with 3 g/d results in more pronounced effects. After 6 wk treatment a reduction of plasma triglyceride concentration and an accumulation of EPA and DHA in plasma were observed. A longer period of treatment with n-3 FAs was necessary to affect platelet aggregation and thromboxane [A.sub.2] biosynthesis. At 12 and 18 wk, platelet aggregation, thromboxane [A.sub.2] formation, and the excretion of thromboxane metabolites in urine were reduced, particularly in subjects who received 6 g n-3 FAs/d during the initial 6 wk. After treatment ended, triglyceride and thromboxane [A.sub.2] biosynthesis returned to baseline values within 4 wk, whereas platelet aggregation remained impaired for [greater than or equal to]14 wk. The long-lasting impairment in platelet aggregation was accompanied by the retention of n-3 FAs in platelet phospholipids. Am J Clin Nutr 1995;61:607-13
- Published
- 1995