载有VEGF的ROS响应纳米颗粒改善了II型糖尿病外围神经病变中的坐骨神经病变的结构和功能
Xiaolan Ou1, Ze Wang2, Daojiang Yu3
1Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China; Department of Plastic and Burn Surgery, the Second Affiliated Hospital of Chengdu Medical College, Nuclear Industry 416 Hospital, Chengdu, 610051, China.
Biomaterials
|November 2, 2024
概括
这项研究开发了装有VEGF的新型金纳米颗粒 (AuND),用于治疗糖尿病外围神经病变 (DPN). 这些纳米粒子改善了神经功能,并减少了老鼠模型中的细胞损伤,提供了一个有前途的DPN疗法.
科学领域:
- 生物医学工程 生物医学工程
- 纳米医学是一种纳米医学.
- 神经科学是一个神经科学.
背景情况:
- 糖尿病周围神经病变 (DPN) 是一种常见的糖尿病并发症,与截肢和死亡风险增加有关.
- 反应性氧物种 (ROS) 导致DPN的神经损伤和热,突出了ROS调节的必要性.
- 目前的DPN治疗有局限性,需要创新的治疗策略.
研究的目的:
- 为了合成ROS响应的金纳米颗粒 (AuNDs) 与移植的硫基进行抗氧化特性.
- 通过将血管内皮生长因子 (VEGF) 连接到AuNDs来制造AuNDs-VEGF纳米粒子,用于DPN治疗.
- 在DPN的老鼠模型中评估AuNDs和AuNDs-VEGF的治疗疗效.
主要方法:
- 通过化将硫基组植入金纳米点上,以创建对ROS敏感的AuNDs.
- 使用静电相互作用将VEGF连接到AuND,形成AuND-VEGF.
- 将AuNDs和AuNDs-VEGF给DPN老鼠模型,并评估神经功能,结构和肌肉状况.
主要成果:
- AuNDs和AuNDs-VEGF显著增加了神经传导速度,并在坐骨神经中缩短了神经传导延迟.
- 纳米颗粒促进了神经皮血管的再生,改善了坐骨神经的结构和功能.
- 治疗减少了神经细胞亡,并缓解了DPN大鼠的胃肌缩.
结论:
- 载有VEGF的ROS响应纳米颗粒显示出改善糖尿病外围神经病变的显著治疗潜力.
- 这种方法扩大了纳米点的应用,并为DPN提供了一个新的治疗策略.
- 该研究强调了ROS监管和针对性交付在DPN管理中的重要性.
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