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Research: DE LORGERIL and colleagues,
Listed in Issue 158
Abstract
DE LORGERIL and colleagues, Laboratoire Coeur et Nutrition, PRETA-TIMC-IMAG, Faculte de Medecine, Universite Joseph Fourier de Grenoble, Grenoble, France. michel.delorgeril@ujf-grenoble.fr, have studied the interactions between wine and n-3 fatty acids.
Background
Moderate alcohol drinking and marine omega-3 fatty acids (omega3) have both been associated with low mortality from coronary heart disease (CHD). However, there is little data evaluating the interactions of wine ethanol drinking with omega3 in CHD patients.
Methodology
The relationships between wine drinking and marine omega3 were evaluated in a cross-sectional study in patients with CHD participating in a randomized trial testing the effect of a high alpha-linolenic acid (ALA, the main plant omega3) diet. Daily ethanol intake was calculated as energy and expressed as a percentage of total energy. Plant and marine omega3 in the diet were carefully evaluated in each patient in both groups.
Results
Patients were classified according to their habitual consumption of ethanol. Patients in the "high ALA group" and controls ("low ALA group") were analyzed separately. Within each group, there was a progressive increase in marine omega3 levels with increased alcohol intake, with a level of eicosapentanoic acid (EPA) that increased by 50% (P < .005) and 37% (P < .05) in the low and high ALA groups, respectively. After controlling for potential confounders (including dietary EPA) in a multivariate linear model, the association between wine ethanol and EPA remained significant in the low (P < .001) and high (P < .05) ALA groups.
Conclusion
In these patients with CHD, moderate wine drinking was associated with higher marine omega3 concentrations than no alcohol use. Although the data have to be confirmed in large groups, this effect of wine comparable to that of fish may partly explain the protective effects of wine drinking against CHD.
References
de Lorgeril M. Salen P. Martin JL. Boucher F. de Leiris J. Interactions of wine drinking with omega-3 fatty acids in patients with coronary heart disease: a fish-like effect of moderate wine drinking. American Heart Journal. 155(1): 175-81. Jan 2008.
