相关实验视频
Updated: Jun 8, 2025

06:09
An In Ovo Model for Testing Insulin-mimetic Compounds
Published on: April 23, 2018
10.6K
评估基梅皮里德/美特福林共晶的抗糖尿病作用
Xiaoli Li1,2,3, Duanfang Zhou4,5, Mingpu Liu1,2,3
1Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China.
Journal of drug targeting
|November 1, 2024
概括
格莱梅皮里德/梅特福林共晶 (GM) 在小鼠中显示出改善的抗糖尿病作用,降低血糖并增强胰岛素分泌. 转基因激活关键信号通路,为2型糖尿病提供了有前途的治疗策略.
科学领域:
- 药理学 药理学是指药理学的学科.
- 内分泌学 在内分泌学.
- 药物发现 药物发现 药物发现
背景情况:
- 与单个成分相比,晶可以表现出独特的药理性质.
- 格利梅皮里德 (Gli) 和甲胺 (Met) 是已知的抗糖尿病药物.
- 之前已经合成了一种glimepiride/metformin联合晶体 (GM).
研究的目的:
- 为了评估转基因晶的抗糖尿病功效.
- 阐明基因转基因作用的潜在分子机制.
- 为了比较转基因的效果与单独使用glimepiride和metformin的效果.
主要方法:
- 在体内研究使用db/db小鼠模型.
- 对血糖和HbA1c水平的评估.
- 对AMPK,STAT3,TXNIP和MAFA信号通路的分析.
- 在胰腺细胞和细胞系中评估胰岛素分泌 (INS-1,MIN-6).
主要成果:
- 在db/db小鼠中,转基因显著降低了血糖和HbA1c水平.
- 低剂量转基因获得的低血糖效应与单个药物相比较;高剂量转基因显示出优异的肝脏改善.
- 转基因激活了AMPK和STAT3信号,降低了TXNIP的调节,并提高了MAFA的调节.
- 转基因增强了胰腺组织和高葡萄糖处理细胞系中的胰岛素分泌.
结论:
- 格莱梅皮里德/美特福明共晶体 (GM) 在体内表现出强大的抗糖尿病作用.
- 转基因对葡萄糖毒性诱导的β细胞功能障碍的保护机制涉及AMPK/TXNIP/MaFA通路.
- 基因转基因提供了一个潜在的优越治疗选择,管理2型糖尿病相比,其单个组成部分.
相关概念视频
Oral Hypoglycemic Agents: Biguanides and Glitazones
175
Biguanides, particularly metformin (Glucophage), are insulin sensitizers that enhance glucose uptake, thereby reducing insulin resistance. Unlike sulfonylureas, metformin doesn't prompt insulin secretion, which helps to curb hypoglycemia risk. Metformin is beneficial in treating conditions like polycystic ovary syndrome due to its insulin-resistance reduction capability. The drug's primary action involves curtailing hepatic gluconeogenesis, a significant contributor to high blood...
175
Dipeptidyl Peptidase 4 Inhibitors
172
Dipeptidyl peptidase 4 (DPP-4) is a serine protease widely distributed in the body. It's involved in the inactivation of GLP-1 and GIP hormones, which are crucial for insulin regulation. DPP-4 inhibitors, such as sitagliptin (Januvia), saxagliptin (Onglyza), linagliptin (Tradjenta), alogliptin (Nesina), and vildagliptin (Galvus), help increase the proportion of active GLP-1, enhancing insulin secretion. These inhibitors work by competitively binding to DPP-4. This binding causes a...
172
Oral Hypoglycemic Agents: Glinides
141
Repaglinide (Prandin) and Nateglinide (Starlix), known as glinides, are oral insulin secretagogues that stimulate insulin release from pancreatic β cells by closing the ATP-sensitive potassium channels (KATP channel). Repaglinide controls insulin release from pancreatic β cells by managing potassium efflux. It shares two binding sites with sulfonylureas and also has a unique site, indicating overlapping mechanisms of action. With a rapid onset and a 4-7 hour duration, it effectively...
141
Oral Hypoglycemic Agents: α-Glucosidase Inhibitors
160
α-glucosidase inhibitors, including acarbose (Precose), miglitol (Glyset), and voglibose (Voglib) (primarily available in Asia), are drugs that control blood sugar levels by delaying the digestion of starch and disaccharides. They achieve this by inhibiting α-glucosidase enzymes in the intestine, which slow the absorption of carbohydrates in the intestine, which in turn leads to a prolonged release of the glucoregulatory hormone GLP-1 from intestinal L-cells.
Acarbose and miglitol are...
Acarbose and miglitol are...
160
Oral Hypoglycemic Agents: Sulfonylureas
192
Sulfonylureas are oral hypoglycemic agents utilized in treating type 2 diabetes. They are characterized by their unique sulfonylurea chemical structure. The family of sulfonylureas is divided into generations. First-generation sulfonylureas, including tolbutamide (Orinase), chlorpropamide (Diabinese), and tolazamide (Tolinase), trigger insulin release from pancreatic β cells and enhance peripheral tissues' insulin sensitivity. The second-generation members, such as glipizide...
192
Glucagon-like Receptor Agonists
300
Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
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...
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...
300

