活体治疗微针与内置代谢引擎集成,用于自主糖尿病伤口管理
Caihong Chen1, Haoyu Gong2, Biao Yang1
1Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China.
Nano letters
|January 21, 2026
概括
带有益生菌的工程微针通过降低血糖和抗击感染来治疗慢性糖尿病伤口. 这种活生生的疗法可以加速治疗,并恢复糖尿病小鼠的正常葡萄糖水平.
科学领域:
- 生物材料科学 生物材料科学
- 微生物学 微生物学
- 再生医学是一种再生医学.
背景情况:
- 慢性糖尿病伤口是糖尿病的主要并发症,其特点是高血糖,感染和愈合障碍.
- 目前的治疗方法往往不足,需要新的策略来解决复杂的伤口环境.
研究的目的:
- 开发一种活体治疗性微针系统,用于同时调节糖尿病伤口中的葡萄糖,感染和血管生成.
- 为了利用益生菌和响应矩阵进行自主伤口微环境调制.
主要方法:
- 工程微针将*Lactobacillus reuteri*益生菌集成到一个响应pH的碳氧甲基基/l-氨酸矩阵中.
- 在感染糖尿病小鼠体内进行体内测试,以评估伤口关闭,血糖控制和抗菌疗效.
主要成果:
- 该系统在48小时内实现了局部高血糖症的84.8%降低,并产生了抗菌性子宫膜.
- 微针促进了血管生成,并清除了反应性氧物种.
- 在糖尿病小鼠中,加快了伤口关闭的7.3倍,消除了病原体,并恢复了正常血糖,没有反弹.
结论:
- 协同作用的"代谢引擎-微环境调节"范式有效地解决了糖尿病伤口愈合的关键障碍.
- 这种活生生的微生物材料治疗平台为慢性疾病管理提供了可扩展的解决方案.
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