Stearidonic and γ-linolenic acids in echium oil improves glucose disposal in insulin resistant monkeys.

Stearidonic and γ-linolenic acids in echium oil improves glucose disposal in insulin resistant monkeys.
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DOI:
10.1016/j.plefa.2013.04.003
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发表时间:
2013-07
影响因子:
3
通讯作者:
Chilton, F. H.
Chilton, F. H.
中科院分区:
医学4区
文献类型:
--
作者:
Kavanagh, K.;Flynn, D. M.;Jenkins, K. A.;Wilson, M. D.;Chilton, F. H.

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蓝蓟油(EO)含有十八碳四烯酸(18:4),n-3多不饱和脂肪酸(PUFA)和γ-亚麻酸(18:3),n-6 PUFA可转化为长链(LC)-PUFA。我们旨在比较富含红花油(SO)的饮食与富含EO和鱼油(FO)的饮食对胰岛素抵抗非洲绿色猴循环和组织PUFA水平以及血糖、炎症和心血管健康生物标志物的影响。在一项拉丁方交叉研究中,八只猴子连续6周食用匹配的饮食,其中有3周的洗脱期。食用FO的猴子具有显著更高水平的n-3 LC-PUFA,并且EO补充导致更高水平的循环n-3 LC-PUFA以及红细胞和肌肉中二高-γ亚麻酸(DGLA)的显著增加。EO消耗后葡萄糖处理得到改善。这些数据表明,EO补充剂中的PUFA能够改变循环、RBC和肌肉LC-PUFA水平,并改善胰岛素抵抗猴的葡萄糖耐量。
Echium oil (EO) contains stearidonic acid (18:4), a n-3 polyunsaturated fatty acids (PUFAs), and gamma-linolenic acids (18:3), a n-6 PUFA that can be converted to long chain (LC)-PUFAs. We aimed to compare a safflower oil (SO)-enriched diet to EO- and fish oil (FO)-enriched diets on circulating and tissue PUFAs levels and glycemic, inflammatory, and cardiovascular health biomarkers in insulin resistant African green monkeys. In a Latin-square cross-over study, eight monkeys consumed matched diets for 6 weeks with 3-week washout periods. Monkeys consuming FO had significantly higher levels of n-3 LC-PUFAs and EO supplementation resulted in higher levels of circulating n-3 LC-PUFAs and a significant increase in dihomo-gamma linolenic acid (DGLA) in red blood cells and muscle. Glucose disposal was improved after EO consumption. These data suggest that PUFAs in EO supplementation have the capacity to alter circulating, RBC and muscle LC-PUFA levels and improve glucose tolerance in insulin-resistant monkeys.
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