肝脏脂脂肪酸的组成,以应对慢性高脂肪饮食
Tamara Popović1, Aleksandra Nenadović2, Anica Stanković2
1Institute for Medical Research, University of Belgrade, Centre of Excellence in Nutrition and Metabolism, Tadeuša Košćuška 1, 11000 Belgrade, Serbia.
概括
饮食中的亚麻,棕油或向日油显著改变肝脏的脂脂肪酸. 亚麻油降低了n-6/n-3比率,而向日油增加了单不和脂肪酸,可能有利于肝脏健康.
科学领域:
- 营养生物化学 营养生物化学
- 肝脏脂质代谢 肝脏脂质代谢
背景情况:
- 饮食中的脂质对肝脏的脂脂脂肪酸成分有重大影响.
- 肝脏酶活性在脂肪酸修饰中起着关键作用.
- 了解特定食油对肝脏脂肪酸概况的影响对于健康至关重要.
研究的目的:
- 调查慢性亚麻油,棕油和向日油饮食对肝脏脂脂肪酸成分的影响.
- 分析脂肪酸概况的变化和脱酶活性.
- 评估这些饮食干预措施对健康的影响.
主要方法:
- 成年雌性C57/BL6小鼠被养为对照或25%的油饮食 (亚麻种,棕,向日) 100天.
- 气液色谱被用来分析食油,肝细胞和肝脏组织中的脂肪酸概况.
- 酶活性 (Δ9, Δ5, Δ6脱酶) 估计基于脂肪酸概况.
主要成果:
- 亚麻油增加了omega-3脂肪酸 (α-linolenic,eicosapentaenoic,docosapentaenoic) 和降低了omega-6脂肪酸 (arachidonic,docosatetraenoic),降低了n-6/n-3的比率.
- 棕油增加了利诺基酸,降低了多可沙赫萨酸,从而提高了n-6/n-3比率.
- 太阳花油增加了总单不和脂肪酸 (棕烯酸,油脂酸,烯酸) 的含量,并增加了 Δ9 脱酶活性.
结论:
- 长期食用亚麻,棕油和向日油会差异地改变肝脏脂脂肪酸的分布.
- 太阳花油对单不和脂肪酸的影响表明潜在的肝脏健康益处.
- 建议增加亚麻油的摄入量,以减少n-6/n-3比率并改善整体健康.
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