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Leah S Halls¹, Yura Son¹, W Walter Lorenz^2,3

¹Department of Nutritional Sciences, University of Georgia, Athens, GA, USA.

The Journal of physiology

|August 22, 2025

概括

棉花油的降脂作用由二斯特基酸 (DHSA) 介导,该酸通过过氧酶增殖剂激活受体α (PPARα) 和脂肪酸氧化 (FAO) 增加能量消耗. 这凸显了DHSA作为代谢健康益处的关键成分.

科学领域:

营养生物化学
代谢调节

背景情况:

已知棉油降低脂质水平,但具体的成分尚不清楚.
乙酸 (DHSA) 是CSO中的一种环酸,是这些作用的潜在媒介.

研究的目的:

调查DHSA在CSO降脂作用中的作用.
阐明分子机制,包括过氧酶增殖器激活受体α (PPARα) 和脂肪酸氧化 (FAO) 的参与.

主要方法:

给小鼠提供了富含CSO或缺乏DHSA的对照饮食.
用RNA测序来分析组织中的基因表达.
用于确认PPARα的作用,使用了PPARα淘汰小鼠.
在DHSA治疗的HepG2细胞中进行了FAO评估.
在小鼠中测量了能量消耗和呼吸交换率.

主要成果:

CSO的摄入增加了肝脏PPARα及其基因表达,这表明增加了FAO.
在PPARα淘汰小鼠中,CSO的降脂作用被消除.
治疗DHSA增加了HepG2细胞的FAO容量.
用CSO养的小鼠的能量消耗增加,呼吸交换率降低.

结论:

在CSO中,DHSA负责增加能量消耗和脂质代谢调节.
该机制涉及脂肪酸氧化途径的PPARα诱导.
通过粮农组织,CSO的代谢效益与依赖DHSA的能源支出增加有关.

关键词:

棉花油二水酸脂肪酸氧化代谢过程营养问题

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