与pH反应相结合的微粒集成水凝通过抑制新血管化,调节炎症和细菌静止,增强了眼睛烧伤治疗效果
Yahong Li1, Xinyuan Wang2, Meina Wu2
1Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, 030001, China; Department of Ophthalmology, Shanxi Bethune Hospital (Shanxi Academy of Medical Sciences), The Third Hospital of Shanxi Medical University, Tongji Shanxi Hospital, Taiyuan, 030032, China.
Biomaterials advances
|February 5, 2026
概括
一种新型的含有乐沃素和二糖酸盐的水凝有效地通过减少炎症和抑制血管生长来治疗角膜新血管化.
科学领域:
- 眼科医生 眼科 眼科
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
背景情况:
- 角膜新血管化 (CNV) 是视力丧失的主要原因,由炎症和血管生成驱动.
- 目前的治疗方法在有效控制感染和炎症方面面临挑战.
研究的目的:
- 开发和评估一种适应pH的水凝 (LEV@DG-HPMC),用于治疗神经性肺炎病毒.
- 在水凝中研究levofloxacin和二糖酸盐在水凝中的协同抗菌和抗炎作用.
主要方法:
- 制造了一种新型的pH响应型水凝,将levfloxacin (LEV) 和二糖 (DG) 与基甲基纤维素 (HPMC) 结合起来.
- 评估水凝生物相容性,眼睛表面保留和pH响应药物释放.
- 在角膜损伤模型中,评估水凝在抑制CNV,降低炎症性细胞因子 (IL-1β,IL-6,TNF-α) 和抑制亲血管性因素 (VEGF-A,MMP-9) 的疗效.
主要成果:
- 该LEV@DG-HPMC水凝显示出优异的生物相容性和长时间的眼睛保留.
- 响应pH的药物释放有效地准了病态的微环境.
- 水凝显示出协同作用的抗菌和抗炎作用,显著抑制了CNV的进展.
- 观察到角膜不透明度降低和促进角膜修复.
结论:
- 多功能智能水凝LEV@DG-HPMC为角膜新血管化提供了一个有前途的治疗策略.
- 这种系统有效地结合了抗菌,抗炎和抗血管性质,以增强角膜愈合.
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