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Alteration of Endogenous Fatty Acids Profile and Lipid Metabolism in Rats Caused by a High-Colleseed Oil and a High-Sunflower Oil Diet
European Journal of Lipid Science and Technology ( IF 1.8 ) Pub Date : 2021-10-18 , DOI: 10.1002/ejlt.202100100
Ruizhi Li 1 , Chin Ping Tan 2 , Yong‐Jiang Xu 1 , Yuanfa Liu 1
Affiliation  

Dietary fat has an important influence on mammalian lipid homeostasis. However, the relationship between dietary fat types and endogenous fatty acids (FAs) in organs as well as lipid homeostasis remains unclear enough. In this study, rats are randomly divided into a control group (CN), a high-colleseed oil group (COG), and a high-sunflower oil group (SOG). FAs profile in liver and visceral fats of rats in two high-fat (HF) diet groups is compared with that in CN. Oleic, γ-linolenic, eicosadienoic, and arachidonic acid accumulate in COG liver or visceral fats, but the levels of linoleic, eicosadienoic, docosanoic, and dihomo-γ-linolenic acid decrease in COG visceral fats. However, these FAs levels increased in SOG liver or visceral fats except dihomo-γ-linolenic and arachidonic acid which changed insignificantly. The trend of initial upregulation and then downregulation of lipid metabolism-related genes expression is noted in COG liver, including stearoyl-CoA desaturase. Upregulation of adiponectin (ADPN) expression in visceral fats and downregulation of ADPN receptor 2 (Adipo-R2) expression in livers of both HF groups are observed. Correlation analysis revealed positive correlations between specific FAs content and ADPN expression level. Negative correlations are observed between Adipo-R2 expression and the content of oleic, linoleic, and γ-linolenic acid in the SOG liver.

中文翻译:

高油菜籽油和高葵花籽油饮食引起大鼠内源性脂肪酸谱和脂质代谢的改变

膳食脂肪对哺乳动物的脂质稳态有重要影响。然而,膳食脂肪类型与器官中的内源性脂肪酸 (FA) 以及脂质稳态之间的关系仍不清楚。本研究将大鼠随机分为对照组(CN)、高玉米油组(COG)和高葵花油组(SOG)。将两个高脂肪 (HF) 饮食组的大鼠肝脏和内脏脂肪中的 FA 谱与 CN 中的进行比较。油酸、γ-亚麻酸、二十碳二烯酸和花生四烯酸在 COG 肝脏或内脏脂肪中积累,但 COG 内脏脂肪中亚油酸、二十碳二烯酸、二十二烷酸和二高-γ-亚麻酸的水平降低。然而,这些 FAs 水平在 SOG 肝脏或内脏脂肪中增加,但二高-γ-亚麻酸和花生四烯酸变化不显着。在 COG 肝脏中注意到脂质代谢相关基因表达的最初上调然后下调的趋势,包括硬脂酰辅酶 A 去饱和酶。观察到两个 HF 组的内脏脂肪中脂联素 (ADPN) 表达的上调和肝脏中 ADPN 受体 2 (Adipo-R2) 的表达下调。相关性分析显示特定 FA 含量与 ADPN 表达水平之间呈正相关。观察到 Adipo-R2 表达与 SOG 肝脏中油酸、亚油酸和 γ-亚麻酸的含量呈负相关。观察到两个 HF 组的内脏脂肪中脂联素 (ADPN) 表达的上调和肝脏中 ADPN 受体 2 (Adipo-R2) 的表达下调。相关性分析显示特定 FA 含量与 ADPN 表达水平之间呈正相关。观察到 Adipo-R2 表达与 SOG 肝脏中油酸、亚油酸和 γ-亚麻酸的含量呈负相关。观察到两个 HF 组的内脏脂肪中脂联素 (ADPN) 表达的上调和肝脏中 ADPN 受体 2 (Adipo-R2) 的表达下调。相关性分析显示特定 FA 含量与 ADPN 表达水平之间呈正相关。观察到 Adipo-R2 表达与 SOG 肝脏中油酸、亚油酸和 γ-亚麻酸的含量呈负相关。
更新日期:2021-12-04
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