Diabetes is a common and frequently occurring endocrine and metabolic disease characterized by hyperglycemia with genetic tendency. At present, the drugs for diabetes include metformin, glimepiride, and acarbose. Although these drugs are effective, long‐term usage will produce secondary symptoms, such as Cushing's syndrome, limb hypertrophy, and even the risk of hypoglycemia. Many natural products have been found to treat diabetes, among which oligosaccharides are the most valuable. Oligosaccharides are low‐level oligosaccharides formed by the linkage of 2–10 monosaccharides through glycosidic bonds. Common oligosaccharides include chitosan oligosaccharides, xylooligosaccharides, konjac glucomannan, and brown algae oligosaccharides. It has the effects of reducing blood glucose, blood pressure, antioxidant, anti‐inflammatory, immune regulation, antiallergy, promoting the growth of bifidobacteria, and improving body health. With the continuous exploration of the medicinal value of natural oligosaccharides, more and more attention has been paid to their research. This review introduces some representative oligosaccharides with hypoglycemic effects, including their structural characteristics and hypoglycemic mechanism, as well as the application status and future development trend of oligosaccharides.
As a lifelong chronic metabolic disease, there is no effective method to completely eradicate diabetes. In the search for effective treatments, disease models are important as a means of revealing pathogenesis and screening for potentially useful drugs. Insulin resistance (IR) is closely linked to type 2 diabetes (T2D), and is not only the basis for the pathogenesis of T2D but also the main thread running through the disease. It is the key to preventing T2D for improving insulin sensitivity and improving IR. Therefore, the construction of IR models is an important technique in T2D research. Most studies have constructed models by actively manipulating cells or animals to simulate disease phenotypes that are similar to human pathogenesis. This guideline provides experimental details for the construction of IR cells and animal models, which is currently the most common, efficient, and stable models used in laboratories for most cells and animals. The guideline for constructing models can help reveal the pathogenesis of T2D and provide a basis for drug screening and development studies for IR‐related diseases.
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