相关实验视频
Updated: Jun 10, 2025

Hyperinsulinemic-euglycemic Clamps in Conscious, Unrestrained Mice
Published on: November 16, 2011
在葡萄糖样-1受体淘汰赛小鼠中,大脑葡萄糖代谢受损
Hui Li1, Yujiao Fang2,3, Da Wang2,3
1iHuman Institute, ShanghaiTech University, Shanghai, China. lihui@shanghaitech.edu.cn.
葡萄糖样-1受体 (GLP-1R) 淘汰小鼠显示大脑葡萄糖代谢受损,功能连接性降低. 这突显了GLP-1R在维持大脑能量恒温和功能的作用.
科学领域:
- 神经科学是一个神经科学.
- 代谢研究研究 代谢研究
- 医疗成像医学成像
背景情况:
- 定量脑代谢映射对于诊断诸如肥胖和神经退行性疾病等疾病至关重要.
- 对于大脑新陈代谢研究,需要使用非侵入性方法.
- 类似葡萄糖-1受体 (GLP-1R) 是肥胖相关疾病的关键标,但其对大脑的影响尚不清楚.
研究的目的:
- 研究GLP-1R在小鼠大脑葡萄糖代谢中的生理作用.
- 确定GLP-1R,大脑代谢和大脑功能之间的关系.
- 利用先进的成像技术来探索这些关系.
主要方法:
- 磁共振光谱 (DMRS) 用于代谢流量量化.
- 氧葡萄糖正子发射断层扫描 (FDG-PET) 用于测量大脑葡萄糖代谢.
- 休息状态功能性MRI (rs-fMRI) 用于在GLP-1R淘汰赛 (KO) 和野生型 (WT) 小鼠中进行大脑功能连接分析.
主要成果:
- 与WT小鼠相比,GLP-1RKO小鼠的脑代谢率显著降低.
- 在GLP-1RKO小鼠的整个大脑中观察到葡萄糖吸收的减少.
- GLP-1R KO小鼠在多项测量 (gFCD,全脑相关性,ALFF) 中显示功能性大脑连接性明显较低.
结论:
- GLP-1R淘汰赛小鼠显示大脑葡萄糖代谢受损,功能连接性降低.
- 这些发现表明GLP-1R在维持大脑葡萄糖代谢和功能连接方面发挥着至关重要的作用.
- GLP-1R KO小鼠模型可能对研究代谢和功能性大脑变化之间的相互作用有价值.
更多相关视频
08:47Live Images of GLUT4 Protein Trafficking in Mouse Primary Hypothalamic Neurons Using Deconvolution Microscopy
Published on: December 7, 2017
08:32Studying the Hypothalamic Insulin Signal to Peripheral Glucose Intolerance with a Continuous Drug Infusion System into the Mouse Brain
Published on: January 4, 2018
相关概念视频
Hypoglycemia and Glucagon
Glucagon-like Receptor Agonists
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by...
Glucose Transporters
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Overview of Carbohydrate Metabolism
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
Hormones Regulating Blood Glucose
In addition to accelerating glucose uptake and utilization, insulin has...
Glucose Homeostasis: Regulation of Blood Glucose
During fasting, when blood glucose levels are low, the pancreas secretes glucagon. it...