相关实验视频
Updated: Jan 13, 2026

10:42
A Tripeptide-Stabilized Nanoemulsion of Oleic Acid
Published on: February 27, 2019
9.8K
来自动物毒素的:通过多目标机制在糖尿病治疗中是一个有前途的前沿
José Otávio Carvalho Sena de Almeida1,2, Simón Gabriel Comerma-Steffensen3,4, José Roberto de Souza de Almeida Leite5
1LAFMOL-Laboratory of Functional and Molecular Studies in Physiopharmacology, Department of Biophysics and Physiology, Federal University of Piaui, Teresina 64049-550, Brazil.
Pharmaceuticals (Basel, Switzerland)
|October 29, 2025
概括
动物毒对治疗糖尿病有很大的潜力. 这些生物活性化合物通过各种机制起作用,包括GLP-1受体激动和胰岛素受体激活,为新型抗糖尿病疗法提供了有前途的途径.
科学领域:
- 药理学 药理学是指药理学的学科.
- 生物化学 生物化学
- 毒理学 毒理学 毒理学
背景情况:
- 糖尿病是一种常见的代谢障碍,具有重大的全球健康影响.
- 来自动物毒素,毒素和分泌物的生物活性对糖尿病管理具有相当大的药理潜力.
研究的目的:
- 系统地审查来自动物毒素的生物活性的抗糖尿病性质的药理机制.
- 为了解决研究问题:"动物毒素衍生的在调节糖尿病相关参数时的作用机制是什么?"
主要方法:
- 在PECo框架的指导下进行综合性审查.
- 在Scopus,PubMed和Web of Science (过去五年) 进行了全面的文献搜索.
- 包括标准适用于190个已识别的文章,选择17个进行分析.
主要成果:
- 来自各种有毒种群的28种不同的 (7-115个氨基酸,900-13,000个大) 得到了特征.
- 已确定的抗糖尿病机制包括GLP-1受体激素,胰岛素受体激活,通道抑制,GLUT4上调和α-氨基酶抑制.
- 同性分析表明结构决定因素影响功能;低毒性概况被认为具有治疗潜力.
结论:
- 毒液衍生的具有很高的药理功效 (ng-nmol/kg有效剂量).
- 这些代表了开发新型抗糖尿病疗法的创新候选者.
- 这些发现突出了探索动物毒素用于糖尿病管理的治疗潜力.
相关概念视频
Glucagon-like Receptor Agonists
836
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...
836
Insulin: Biosynthesis, Chemistry, and Preparation
1.2K
The endoplasmic reticulum (ER) of pancreatic β-cells synthesizes preproinsulin, which consists of a signal peptide, A and B chains, and a C-peptide. Preproinsulin is then cleaved and folded into proinsulin, which translocates to the Golgi apparatus for sorting and packaging into secretory granules. In these granules, enzymatic clipping generates insulin and C-peptide.
Damage or functional impairment of β-cells inhibits insulin production, leading to diabetes. Diabetes treatment...
Damage or functional impairment of β-cells inhibits insulin production, leading to diabetes. Diabetes treatment...
1.2K
Transducer Mechanism: Enzyme-Linked Receptors
3.8K
Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Major types that are helpful drug targets include:
3.8K
Insulin Secretory Vesicles
6.4K
Insulin secretory vesicles release insulin to stimulate blood glucose uptake and regulate carbohydrate metabolism. When the blood glucose levels increase, glucose enters the pancreatic β-islet cells through glucose transporters. Once inside, glucose is metabolized through glycolysis, the citric acid cycle, and the electron transport chain, producing ATP. This increase in ATP concentration closes ATP-sensitive potassium channels, leading to depolarization of the membrane and the opening of...
6.4K
Dipeptidyl Peptidase 4 Inhibitors
575
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...
575
Glucose Homeostasis: Pancreatic Islets and Insulin Secretion
2.2K
The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
Insulin and C-peptide are...
Insulin and C-peptide are...
2.2K

