由L细胞受体感知到的营养组合可以增强GLP-1分泌
Nalini Sodum1, Orvokki Mattila1, Ravikant Sharma1
1Research Unit of Biomedicine and Internal Medicine, Biocentre of Oulu, Medical Research Center, University of Oulu, Oulu University Hospital, Aapistie 5, 90220 Oulu, Finland.
International journal of molecular sciences
|January 23, 2024
概括
阿尔法-烯酸与氨酸或氨酸的组合可显著增加类似葡萄糖-1 (GLP-1) 的释放. 这些营养配对通过增强GLP-1分泌来显示肥胖管理的潜力.
科学领域:
- 内分泌学 在内分泌学.
- 营养科学 营养科学
- 胃肠病学 胃肠病学
背景情况:
- 肥胖是心脏代谢疾病的重要危险因素.
- 类似葡萄糖-1 (GLP-1) 在食欲调节中起作用,但其半衰期短,系统循环有限.
- 负责GLP-1释放的L细胞位于远部,而营养物质的吸收发生在近部.
研究的目的:
- 调查氨基酸和脂肪酸的组合是否可以通过不同的L细胞受体加强GLP-1的释放.
- 探索新的营养策略来增强GLP-1分泌.
主要方法:
- 在小鼠STC-1肠内分泌细胞中测量GLP-1分泌.
- 细胞被用α-烯酸 (αLA),氨酸 (Phe),氨酸 (Trp) 和它们的组合处理.
- 基因表达,包括GPR120,通过qPCR进行分析,并量化GLP-1水平.
主要成果:
- 单独的α-烯酸 (αLA) 显著刺激了GLP-1分泌.
- 氨酸 (Phe) 和氨酸 (Trp) 显示GLP-1分泌的剂量依赖性增加.
- 与Phe或Trp结合的αLA显著增强了GLP-1分泌,比单个营养素更多. αLA 和 Trp 调高了 GPR120.
结论:
- 氨基酸和脂肪酸的特定组合协同增强GLP-1分泌.
- 这些发现表明了基于营养的干预措施的潜力,可能是针对结肠的持续释放配方.
- 这种方法可能为抑制食欲和预防肥胖提供一种新的策略.
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