Journal of Atherosclerosis and Thrombosis
Online ISSN : 1880-3873
Print ISSN : 1340-3478
ISSN-L : 1340-3478
Original Article
Relationships between Plasma Fatty Acid Composition and Coronary Artery Disease
Hiroshige ItakuraMitsuhiro YokoyamaMasunori MatsuzakiYasushi SaitoHideki OrigasaYuichi IshikawaShinichi OikawaJun SasakiHitoshi HishidaToru KitaAkira KitabatakeNoriaki NakayaToshiie SakataKazuyuki ShimadaKunio ShiratoYuji Matsuzawa
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JOURNAL OPEN ACCESS

2011 Volume 18 Issue 2 Pages 99-107

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Abstract

Aim: The Japan EPA Lipid Intervention Study (JELIS) was the first prospective randomized clinical trial to demonstrate prevention of coronary events by pure eicosapentaenoic acid (EPA). The aim of this study was to examine the relationships between various plasma fatty acid concentrations and the risk of coronary events in JELIS participants.
Methods: In 15,534 participants, we calculated the hazard ratio for major coronary events (sudden cardiac death, fatal or nonfatal myocardial infarction, unstable angina pectoris, and angioplasty/stenting or coronary artery bypass grafting) relative to the on-treatment average level of plasma fatty acids with the Cox proportional hazard model.
Results: As a result of EPA intervention, the plasma EPA concentration increased, but the docosahexaenoic acid (DHA) concentration did not. The other fatty acids measured decreased slightly. The higher plasma level of EPA (hazard ratio=0.83, p=0.049, in all participants and hazard ratio=0.71, p=0.018, in the EPA intervention group), but not of DHA, was inversely associated with the risk of major coronary events. The associations between other fatty acids and the risk of major coronary events were not significant. In all JELIS participants, the risk of major coronary events was significantly decreased (20%) in the group with high (150 µg/mL or more) on-treatment plasma EPA concentration compared with that in the low (less than 87 µg/mL) group.
Conclusion: The risk of coronary artery disease is influenced by variations in plasma fatty acid composition. Among n-3 polyunsaturated fatty acids, EPA and DHA exhibited differences in the correlation with the risk of major coronary events.

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https://creativecommons.org/licenses/by-nc-sa/4.0/deed.ja
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