首页> 外文期刊>American Journal of Physiology >The alpha-linolenic acid content of flaxseed can prevent the atherogenic effects of dietary trans fat.
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The alpha-linolenic acid content of flaxseed can prevent the atherogenic effects of dietary trans fat.

机译:亚麻籽中的α-亚麻酸可以防止饮食中反式脂肪的致动脉粥样硬化作用。

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摘要

Dietary intake of industrially hydrogenated trans fatty acids (TFA) has been associated with coronary heart disease. Dietary flaxseed can inhibit atherosclerosis induced by dietary cholesterol. The aim of this study was to determine whether supplementing the diet with flaxseed could protect against atherosclerosis induced by a diet enriched in TFA. Low-density lipoprotein receptor-deficient (LDLr(-/-)) mice were fed 1 of 14 experimental diets for 14 wk containing one of two fat sources [regular (pork/soy) or trans fat] at two concentrations (4 or 8%) and supplemented with or without dietary cholesterol (2%), whole ground flaxseed, or one of the components of flaxseed [alpha-linolenic acid (ALA), defatted fiber, or lignan]. Adding flaxseed to the diet partially mitigated the rise in circulating cholesterol levels induced by the cholesterol-enriched diet. Atherosclerosis was stimulated by TFA and/or cholesterol. Including milled flaxseed to an atherogenic diet significantly reduced atherosclerosis compared with the groups that consumed cholesterol and/or TFA. ALA was the only component within flaxseed that could inhibit the atherogenic action of cholesterol and/or TFA on its own. Dietary flaxseed protects against atherosclerotic development induced by TFA and cholesterol feeding through its content of ALA.
机译:膳食摄入的工业氢化反式脂肪酸(TFA)与冠心病有关。膳食亚麻籽可以抑制膳食胆固醇诱发的动脉粥样硬化。这项研究的目的是确定用亚麻籽补充饮食是否可以预防富含TFA的饮食引起的动脉粥样硬化。向低密度脂蛋白受体缺陷(LDLr(-/-))小鼠喂食14个实验饮食中的1个,饮食14周,其中包含两种浓度(4或8)的两种脂肪来源之一(常规(猪/大豆)或反式脂肪) %),并补充或不补充饮食中的胆固醇(2%),整个地面亚麻籽或亚麻籽的一种成分[α-亚麻酸(ALA),脱脂纤维或木脂素]。在饮食中添加亚麻籽可以部分缓解由富含胆固醇的饮食引起的循环胆固醇水平的升高。 TFA和/或胆固醇刺激动脉粥样硬化。与食用胆固醇和/或TFA的组相比,将经过碾磨的亚麻籽制成动脉粥样硬化饮食可以显着降低动脉粥样硬化。亚麻籽中的ALA是唯一可以自己抑制胆固醇和/或TFA的致动脉粥样硬化作用的成分。日粮亚麻籽可通过其含量的ALA防止TFA和胆固醇喂养诱导的动脉粥样硬化发展。

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