通过含有自组装纳米酶的可注射水凝增强糖尿病伤口愈合
Sicheng Jiang1, Dingqi Xie1, Zehui Hu1
1Department of Orthopaedic Surgery, Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Biomedical Research Center, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou 310016, China.
概括
这项研究介绍了一种智能伤口,通过消耗葡萄糖和产生激素来消除生物膜来对抗感染的糖尿病伤口. 在愈合后,它释放铜以促进组织再生.
科学领域:
- 生物材料科学 生物材料科学
- 伤口愈合 治愈 伤口愈合
- 纳米技术纳米技术
背景情况:
- 由于可变的微环境,包括高葡萄糖和感染,糖尿病伤口存在复杂的愈合挑战.
- 现有的治疗方法往往缺乏适应能力,无法应对伤口愈合过程中的动态变化.
研究的目的:
- 开发一种多功能,智能的伤口包裹,用于感染糖尿病的伤口.
- 创建一个响应伤口微环境的系统,以有效控制感染和促进愈合.
主要方法:
- 葡萄糖氧化酶 (GOx) 和一个pH响应的Cu2-xSe-BSA纳米酶的联合纳入双动态键交联凝 (OBG).
- 复合水凝 (OBG@CG) 旨在应对酸性和高葡萄糖条件.
- 评估抗菌性质,生物膜破坏,并通过RNA-seq分析促进伤口愈合.
主要成果:
- 在酸性,高葡萄糖条件下,OBG@CG水凝有效地产生了活性氧物种 (ROS),以降解生物膜.
- 在愈合过程中pH值升高后,ROS生成停止,释放的Cu2+促进了原蛋白的产生和内皮细胞的活动.
- 通过破坏生物膜完整性和干扰细菌新陈代谢,证明具有显著的抗菌作用.
结论:
- 开发的智能伤口带为感染糖尿病患者的伤口管理提供了一种创新的葡萄糖消耗策略.
- 包裹能够动态地响应伤口微环境,这促进了感染控制和组织再生.
- 这种方法有望促进智能伤口护理解决方案的发展.
相关概念视频
01:27Diabetic 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...
01:22Diabetic 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...