相关实验视频

Updated: Mar 8, 2026

Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis

Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis

Published on: June 3, 2016

脂质修饰酶在细胞适应和全身葡萄糖平衡中的分子机制

Nila Ganamurali¹, Sarvesh Sabarathinam¹, Navodi Sandamini Jayathilaka²

¹Pharmaco-Netinformatics Research Lab, Department of Psychiatry, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, India.

Comprehensive Physiology

|March 7, 2026

概括

脂质修饰酶通过调节细胞膜,是葡萄糖平衡的关键. 了解它们在脂质流动中的作用对于解决胰岛素耐药性和糖尿病病原性至关重要.

科学领域:

生物化学生物化学
代谢生理学代谢生理学
分子内分泌学分子内分泌学

背景情况:

脂质修饰酶极大地影响细胞功能,包括膜结构和代谢信号.
系统性葡萄糖平衡依赖于复杂的脂质介导过程和器官间的通信.
脂质新陈代谢的失调与2型糖尿病等代谢疾病的发病有关.

研究的目的:

阐明脂质修饰酶,膜动力学和全身葡萄糖调节之间的机制联系.
探索酶性脂质重塑如何影响胰岛素信号通路和葡萄糖运输.
建立一个框架,将异常的脂质代谢与胰岛素抵抗和糖尿病联系起来.

主要方法:

脂管学分析,以分析脂类物种的形状变化.
结构酶学用于确定酶机制.
研究信号通路 (例如PI3K-AKT) 和蛋白质贩运 (例如GLUT4).
分析特定脂质调解剂 (例如,FABP4,胺,二甲) 和脂肪酸 (例如,omega-3 PUFA) 的作用.

主要成果:

脂质的酶重塑控制了胰岛素受体组织,PI3K-AKT信号传递和GLUT4囊泡的贩运.
改变的脂质流,涉及诸如FABP4,胺和二甲醇等因素,破坏膜微域,损害胰腺β细胞功能,并加剧肝脏葡萄糖生成和肌肉胰岛素抵抗.
欧米茄-3多不和脂肪酸被证明可以改善膜流动性并促进抗炎信号传递.

结论:

脂质修饰酶是膜结构和代谢信号的中央调节者,直接影响葡萄糖平衡.
了解脂质流动的酶控制提供了对胰岛素抵抗和2型糖尿病背后的分子机制的关键见解.
向脂质修饰酶和途径为代谢性疾病提供了潜在的治疗策略.

关键词:

生物工程脂质代谢生物工程脂质代谢良好的健康和福祉.脂质酶代谢学脂质酶代谢学脂类体和代谢适应性神经保护性脂质信号传递

更多相关视频

A Model of Chronic Nutrient Infusion in the Rat

A Model of Chronic Nutrient Infusion in the Rat

Published on: August 14, 2013

Measuring the Rate of Lipolysis in Ex Vivo Murine Adipose Tissue and Primary Preadipocytes Differentiated In Vitro

Measuring the Rate of Lipolysis in Ex Vivo Murine Adipose Tissue and Primary Preadipocytes Differentiated In Vitro

Published on: March 17, 2023

相关概念视频

Overview of Lipid Metabolism

Overview of Lipid Metabolism

Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...

Regulation of Metabolism

Regulation of Metabolism

Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...

Glucose Homeostasis: Regulation of Blood Glucose

Glucose Homeostasis: Regulation of Blood Glucose

Carbohydrates consumed through foods are converted into glucose, a crucial energy source for the body. In the prandial state, high blood glucose levels stimulate the secretion of insulin from the pancreas. Insulin inhibits hepatic glucose production and stimulates glucose uptake and metabolism by muscle and adipose tissue. The excess glucose is converted into glycogen and stored in the liver and muscles.
During fasting, when blood glucose levels are low, the pancreas secretes glucagon. it...

Hormones Regulating Blood Glucose

Hormones Regulating Blood Glucose

Insulin is released by beta cells of the pancreas when blood glucose levels are high. It facilitates glucose absorption and utilization in insulin-dependent cells with insulin receptors on their plasma membranes. Insulin promotes glucose uptake by increasing the number of glucose transport proteins in the cell membrane, allowing glucose to enter the cell. As a result, glucose utilization and ATP production are enhanced.
In addition to accelerating glucose uptake and utilization, insulin has...

Insulin: The Receptor and Signaling Pathways

Insulin: The Receptor and Signaling Pathways

Insulin action is mediated through a receptor tyrosine kinase, akin to the IGF-1 receptor. The number of receptors per cell varies significantly, from 40 on erythrocytes to 300,000 on adipocytes and hepatocytes. The insulin receptor consists of linked α/β subunit dimers, forming a heterotetramer glycoprotein with two extracellular α subunits and two β subunits spanning the membrane. The α subunits inhibit the inherent tyrosine kinase activity of the β subunits, but...

Cell Specific Gene Expression

Cell Specific Gene Expression

Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...