麦β-D-葡萄糖通过TLR4/PI3K/AKT介导的代谢轴改善II型糖尿病
Huiqin Guo1, Haili Wu2, YanBing Hou2
1Institute of Biotechnology, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030002, China; Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan 030032, China.
International journal of biological macromolecules
|July 29, 2023
概括
麦β-葡萄糖通过改善葡萄糖平衡,有助于控制糖尿病. 它激活了TLR4/PI3K/AKT等关键通路,以调节糖原合成,葡萄糖生成和葡萄糖代谢.
科学领域:
- 营养科学 营养科学
- 代谢健康 代谢健康
- 免疫学 免疫学 免疫学
背景情况:
- 糖尿病是一种严重的全球健康问题.
- 以前的研究表明,麦β-葡萄糖对糖尿病小鼠有好处,但机制尚不清楚.
- 了解麦β-葡萄糖在葡萄糖平衡中的作用对于治疗策略至关重要.
研究的目的:
- 阐明麦β-葡萄糖改善高血糖的潜在机制.
- 研究麦β-葡萄糖对肝脏葡萄糖代谢和相关信号通路的影响.
- 确定托尔类受体4 (TLR4) 在调解麦β-葡萄糖降糖作用中的作用.
主要方法:
- 研究了麦β-葡萄糖对糖尿病模型中的糖原合成和酸化的影响.
- 通过测量关键酶表达 (PEPCK) 来分析对葡萄糖生成的影响.
- 通过检查氧化酸化和线粒体基因表达来评估葡萄糖代谢.
- 利用高葡萄糖诱导的HepG2细胞中的抗体来阻断TLR4,以确认途径的参与.
主要成果:
- 麦β-葡萄糖通过通过PI3K/AKT/GSK3信号来激活糖原合成酶 (GS) 来增加肝脏的糖原含量.
- 它通过通过PI3K/AKT/Foxo1.1降低基酸碳素激酶 (PEPCK) 来抑制葡萄糖生成.
- 通过增加氧化酸化和线粒体生物发生因子 (TFAM) 观察到增强的葡萄糖代谢.
- 关键的是,麦β-葡萄糖的作用依赖于TLR4,因为阻断TLR4取消了它在HepG2细胞中的益处.
结论:
- 麦β-葡萄糖通过一个涉及TLR4.4的机制有效地保持肝脏葡萄糖平衡.
- 阐明的途径涉及TLR4介导的PI3K/AKT激活,影响GS,PEPCK和线粒体功能.
- 这些发现突出了麦β-葡萄糖作为一种潜在的饮食干预措施来控制糖尿病.
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