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首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >A high omega-3 fatty acid diet rapidly changes the lipid composition of cardiac tissue and results in cardioprotection
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A high omega-3 fatty acid diet rapidly changes the lipid composition of cardiac tissue and results in cardioprotection

机译:高ω-3脂肪酸饮食迅速改变心脏组织的脂质组合物并导致心脏保护作用

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摘要

The present study was designed to ascertain the effects of 3 diets with different omega-3/6 fatty acid ratios on infarct size and the modifications that these diets induce in the lipid composition of cardiac tissue. Sprague-Dawley rats were fed omega-3/6 fatty acid diets with 1:1, 1:5, or 1:20 ratios for at least 10 days, followed by occlusion of the left anterior descending artery for 40 min and 24 h of reperfusion. Infarct size was significantly smaller in the 1:1 group than in the other groups. Significantly higher concentrations of the omega-3 fatty acids eicosapentaenoic acid, docosapentaenoic acid, and docosahexaenoic acid were found in the 1:1 group than in the other groups. Omega-6 polyunsaturated fatty acid levels were similar between groups, although they were higher in the 1:5 and 1:20 groups than in the 1:1 group. Margaric acid concentrations were higher in the 1:1 group than in the other groups. Docosahexaenoic acid levels in cardiac tissue and infarct size were significantly correlated with no other significant links being apparent. The present study indicated that a 1:1 omega-3/6 fatty acid ratio protected against ischemia and was associated with increased omega-3 fatty acid composition of cardiac tissue.
机译:本研究旨在确定3种饮食对不同ω-3/6脂肪酸比的影响,这些脂肪酸比和这些饮食在心脏组织脂质组合物中诱导的修饰。 Sprague-Dawley大鼠用1:1,1:5或1:20喂食ω-3/6脂肪酸饮食至少10天,然后闭塞40分钟,24小时闭塞再灌注。 1:1组梗塞尺寸明显小于其他组。在1:1组中发现比在另一组中的ω-3脂肪酸eicosapentaeno酸,十二磺酸和十二碳六烯酸的显着较高浓度。 ω-6多不饱和脂肪酸水平在组之间相似,但在1:5和1:20的组中较高,而不是1:1组。在1:1的群体中比其他基团更高。心脏组织和梗塞大小的二十二碳己酸水平与明显没有其他显着链接显着相关。本研究表明,免受缺血的1:1ω-3/6脂肪酸比,并与心脏组织的ω-3脂肪酸组成增加有关。

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