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(Circulation. 2000;102:2677.)
© 2000 American Heart Association, Inc.
Brief Rapid Communication |
Fish Oil–Derived Fatty Acids, Docosahexaenoic Acid and Docosapentaenoic Acid, and the Risk of Acute Coronary Events
The Kuopio Ischaemic Heart Disease Risk Factor Study
From the Research Institute of Public Health, University of Kuopio, Kuopio, Finland.
Correspondence to Professor J.T. Salonen, Research Institute of Public Health, University of Kuopio, PO Box 1627, 70211 Kuopio, Finland. E-mail jukka.salonen{at}uku.fi
Background—Previous findings concerning the serum levels of fish-derived (n-3) fatty acids and coronary heart disease are inconsistent. The purpose of this study was to investigate the association between the serum n-3 end-product fatty acids docosahexaenoic acid (DHA), docosapentaenoic acid (DPA), and eicosapentaenoic acid and the risk of acute coronary events in middle-aged men.
Methods and Results—We
studied this association in the Kuopio Ischaemic Heart Disease Risk
Factor Study, a prospective population study in Eastern Finland.
Subjects were randomly selected and included 1871 men aged 42 to 60
years who had no clinical coronary heart disease at baseline
examination. A total of 194 men had a fatal or nonfatal acute coronary
event during follow-up. In a Cox proportional hazards’ model adjusting
for other risk factors, men in the highest fifth of the proportion of
serum DHA+DPA in all fatty acids had a 44% reduced risk
(P=0.014) of acute coronary
events compared with men in the lowest fifth. Men in the highest fifth
of DHA+DPA who had a low hair content of mercury (
2.0 µg/g) had a
67% reduced risk (P=0.016) of
acute coronary events compared with men in the lowest fifth who had a
high hair content of mercury (>2.0 µg/g). There was no association
between proportion of eicosapentaenoic acid and the risk of acute
coronary events.
Conclusions—Our data provide further confirmation for the concept that fish oil–derived fatty acids reduce the risk of acute coronary events. However, a high mercury content in fish could attenuate this protective effect.
Key Words: epidemiology • fatty acids • myocardial infarction • nutrition • mercury
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