Beneficial Effects of Small Molecule Oligopeptides Isolated from Panax ginseng Meyer on Pancreatic Beta-Cell...

Area of Science:

• Pharmacology and Toxicology
• Endocrinology and Metabolism
• Natural Product Research

Background:

• Type 2 diabetes mellitus (T2DM) is a significant global health concern characterized by hyperglycemia.
• Existing treatments for T2DM have limitations, necessitating the exploration of novel therapeutic agents.
• Ginseng oligopeptides (GOPs) are derived from ginseng, a traditional medicinal herb with potential health benefits.

Purpose of the Study:

• To investigate the potential of ginseng oligopeptides (GOPs) in modulating hyperglycemia in a rat model of type 2 diabetes mellitus (T2DM).
• To evaluate the effects of GOPs on glucose metabolism, pancreatic islet function, and survival rates in diabetic rats.

Main Methods:

• Type 2 diabetes was induced in Sprague-Dawley rats using a high-fat diet and low-dose alloxan.
• Rats were treated with varying doses of GOPs for extended periods (7, 24, and 52 weeks).
• Key parameters assessed included oral glucose tolerance tests (OGTT), plasma glucose, serum insulin, antioxidant levels, beta-cell function, pancreatic islet morphology, and Western blot analysis for insulin, NF-κB, and Bcl-2 family expression.

Main Results:

• GOPs treatment partially reversed abnormal oral glucose tolerance tests (OGTT) in diabetic rats.
• Microscopy analysis revealed amelioration of pancreatic damage, with GOPs increasing normal insulin content and decreasing NF-κB signaling pathway expression.
• Significant improvements in survival time and survival rate were observed in GOPs-treated groups compared to controls.

Conclusions:

• Ginseng oligopeptides (GOPs) demonstrate auxiliary therapeutic potential for type 2 diabetes mellitus (T2DM).
• GOPs may exert their beneficial effects by improving pancreatic islet function and reducing inflammation.
• Further research into GOPs as a complementary treatment for T2DM is warranted.