Abstract Title:

Randomized controlled trial of gamma-linolenic acid and eicosapentaenoic acid in peripheral arterial disease.

Abstract Source:

Clin Nutr. 1998 Dec;17(6):265-71. PMID: 10205349

Abstract Author(s):

G C Leng, A J Lee, F G Fowkes, R G Jepson, G D Lowe, E R Skinner, B F Mowat


BACKGROUND AND AIMS: epidemiological studies suggest polyunsaturated fatty acids protect against the development of atherosclerosis. The aim of this study was to perform a randomized controlled trial of gamma-linolenic and eicosapentaenoic acids in patients with lower limb atherosclerosis. Main outcome measures were: cholesterol and lipoprotein concentrations; haemostatic and rheological variables; the ankle brachial pressure index; walking distance; and cardiovascular events and death. METHODS: 120 men and women with stable intermittent claudication were randomized to 2 years treatment with either a combination of gamma-linolenic and eicosapentaenoic acids, or placebo. RESULTS: 39 (65.0 cent) of those taking fatty acids and 36 (60.0 cent) of those taking placebo completed the trial. Lipid concentrations did not differ significantly during the trial. In those taking fatty acids, haematocrit was significantly higher than in the placebo group after 6 months (46.1 cent compared with 44.6 cent, P0.05). CONCLUSIONS: a combination of polyunsaturated fatty acids produced a statistically significant reduction in systolic blood pressure, but no other significant benefits on risk factors. The trend towards fewer coronary events in those taking fatty acids warrants further investigation.

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Sayer Ji
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