EPA和DHA通过减少脂组织炎症向GPR120/PPARγ通路来差异性改善胰岛素耐药性
Xian Yang1, Xudong Li1, Manjiang Hu1
1Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China.
The Journal of nutritional biochemistry
|April 17, 2024
概括
在改善胰岛素抵抗 (IR) 方面,多可萨赫萨酸 (DHA) 显示出比eicosapentaenoic acid (EPA) 更大的潜力. DHA增强巨细胞中的GPR120/PPARγ通路,为IR提供了一个有前途的治疗途径.
科学领域:
- 代谢性疾病是一种代谢性疾病.
- 营养科学 营养科学
- 细胞生物学 细胞生物学
背景情况:
- 胰岛素抵抗 (IR) 是一个主要的全球健康问题,经常与脂肪组织功能障碍有关.
- 埃可萨氨酸 (EPA) 和多可萨氨酸 (DHA) 是omega-3脂肪酸,在新陈代谢健康中具有潜在的作用,但它们在IR中的特定机制尚不清楚.
研究的目的:
- 在高脂肪饮食 (HFD) 诱导的小鼠模型中研究EPA和DHA对IR的保护作用.
- 阐明G蛋白结合受体120/氧酶增殖器激活受体γ (GPR120/PPARγ) 途径在调解EPA和DHA对巨细胞和脂肪细胞IR影响中的作用.
主要方法:
- 利用高脂肪饮食 (HFD) 的小鼠模型来诱导胰岛素抵抗.
- 使用脂肪细胞和巨细胞进行基于细胞的测定,以检查EPA,DHA和特定途径抗剂 (GPR120的AH7614,PPARγ的GW9662) 的作用.
- 评估葡萄糖消耗,炎症性细胞因子水平和胰岛素信号分子表达.
主要成果:
- 在小鼠模型中,与EPA相比,DHA (4%) 在改善IR和减少脂肪组织炎症方面表现出更高的疗效.
- 在脂肪细胞中,DHA介导的葡萄糖消耗和PPARγ/胰岛素信号的增加被GPR120抗剂AH7614抑制.
- 无论是EPA和DHA诱导的葡萄糖消耗和胰岛素信号的改善都被PPARγ抗剂GW9662减弱.
- DHA显著降低了巨细胞的迁移和炎症,而这些抑制作用对巨细胞诱导的IR被AH7614和GW9662阻断了.
结论:
- DHA在改善胰岛素抵抗方面表现出比EPA更强大的能力,特别是在脂肪细胞中.
- DHA对IR的保护作用主要通过涉及巨细胞和脂肪细胞的GPR120/PPARγ通路进行介导.
- 准GPR120/PPARγ通路为管理胰岛素抵抗提供了潜在的治疗策略.
关键词:
达科萨赫克萨埃诺酸是什么?埃可萨丁烯酸是什么 埃可萨丁烯酸是什么G-蛋白组合受体 120 G蛋白组合受体 120炎症 炎症是一种炎症.胰岛素耐药性 胰岛素耐药性是一种过氧体增殖器激活的受体 γ 是什么?更多相关视频
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