无细胞胚胎体和xybutyl基托复合液体促进M2巨细胞的两极分化,加速糖尿病皮肤伤口愈合
相关实验视频
Updated: May 13, 2026

07:48
Engineering a Bilayered Hydrogel to Control ASC Differentiation
Published on: May 25, 2012
13.9K
Yue Zhang1,2, Zheng-Hong Chen3, Kun Zhao4
1Department of Pathophysiology, Northwestern University School of Life Sciences, Northwest University, Xi'an, Shaanxi, 710069, China.
Materials today. Bio
|February 7, 2024
概括
一种新型的无细胞胚胎体/氧丁基酸水凝加速糖尿病伤口愈合. 这种生物材料促进M2巨细胞的两极分化,并增强组织再生,为治疗慢性伤口提供了一种有前途的方法.
科学领域:
- 生物材料科学 生物材料科学
- 伤口治愈研究研究 伤口治愈研究
- 免疫调节是一种免疫调节.
背景情况:
- 糖尿病的伤口愈合因持续的炎症而显著受损.
- 巨细胞免疫调节是控制炎症和加速愈合的关键策略.
- 生物材料提供了一个提供治疗剂以调节巨细胞活动的平台.
研究的目的:
- 开发和评估用于糖尿病伤口愈合的非细胞胚胎体/基布酸 (aEB/HBC) 复合水凝.
- 研究aEB/HBC水凝对巨细胞的免疫调节作用.
- 评估aEB/HBC水凝在促进糖尿病小鼠皮肤伤口关闭方面的疗效.
主要方法:
- 制备具有热敏性和多孔性质的aEB/HBC复合水凝.
- 在体外评估抗微生物活性和巨细胞两极分化 (M0到M2).
- 在体内评估糖尿病小鼠的伤口关闭,再上皮化,血管生成,原沉积和痕宽度.
主要成果:
- aEB/HBC水凝在体外显示出增强的抗菌活性,并促进了M0到M2巨细胞的两极分化.
- 在体内研究表明,在接受aEB/HBC水凝治疗的糖尿病小鼠中,伤口关闭,再上皮化和新血管化加速.
- 观察到持续的M2巨诱导和M1/M2相关基因表达的调制,与改善的伤口愈合相关.
结论:
- aEB/HBC复合水凝具有优良的抗菌性能,并有效促进M2巨细胞的两极分化.
- 这些水凝显著加速糖尿病皮肤伤口的功能和结构愈合.
- 开发的生物材料显示了治疗应用的潜力,用于治疗糖尿病伤口并发症.
相关概念视频
Insulin Secretory Vesicles
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...
Tissue Renewal without Stem Cells
After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
However, failure of such a system...
Diabetes Mellitus: Type 2 and Gestational
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
Type II Diabetes II: Pathophysiology
PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
Diabetic Retinopathy
DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
Diabetic Neuropathy
DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...

