首页> 外文期刊>Life sciences >Dietary alpha-linolenic acid suppresses the formation of lysophosphatidic acid, a lipid mediator, in rat platelets compared with linoleic acid.
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Dietary alpha-linolenic acid suppresses the formation of lysophosphatidic acid, a lipid mediator, in rat platelets compared with linoleic acid.

机译:与亚油酸相比,饮食中的α-亚麻酸可抑制大鼠血小板中溶血磷脂酸的形成。

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摘要

Rats fed a high linoleic acid (LA, 18:2n-6) diet or a high alpha-linolenic acid (ALA, 18:3n-3) diet for 4 months after weaning. Platelets from the high-LA group contained more arachidonic acid (AA, 20:4n-6) and less eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3) compared with those from the high-ALA group. Incorporation of [32P]orthophosphate into platelet phospholipids was increased by thrombin-treatment, and was greater by ca. 30% in the high-LA group than in the high-ALA group both in the presence and absence of thrombin. The formation of [32P]lysophosphatidic acid (LPA), a lipid messenger, in [32P]orthophosphate-labeled platelets was increased 6.6-fold in the high-LA group and 4.1-fold in the high-ALA-group by thrombin-treatment. The formation of [32P] LPA in activated platelets was reduced by 35% in the high-ALA group.
机译:断奶后4个月,大鼠饲喂高亚油酸(LA,18:2n-6)饮食或高α-亚麻酸(ALA,18:3n-3)饮食。与高脂血症组相比,高LA组的血小板含有更多的花生四烯酸(AA,20:4n-6)和更少的二十碳五烯酸(EPA,20:5n-3)和二十二碳六烯酸(DHA,22:6n-3)。高ALA组。通过凝血酶处理可将[32P]正磷酸酯掺入血小板磷脂中,而通过凝血酶处理则增加。在存在和不存在凝血酶的情况下,高LA组的患病率均高于高ALA组的30%。通过凝血酶处理,[32P]正磷酸盐标记的血小板中脂质信使[32P]溶血磷脂酸(LPA)的形成在高LA组中增加了6.6倍,在高ALA组中增加了4.1倍。 。高ALA组的活化血小板中[32P] LPA的形成减少了35%。

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