内甲松微晶/带有利多卡因的PLGA非球形微粒,用于局部向内耳输送药物
Dongcheng Wang1, Xin Zhang1, Zhen Wang1
1Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.
Animal models and experimental medicine
|October 17, 2025
概括
针对突然的感觉神经听力损失 (SSNHL) 的新型联合传递系统结合了甲微晶和利多卡因微粒,用于持续的内耳药物释放. 这种方法改善了药物保留和生物相容性,为SSNHL与耳提供了有希望的协同治疗.
科学领域:
- 生物医学工程 生物医学工程
- 药物输送系统 药物输送系统
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 突然的感觉神经听力损失 (SSNHL) 和耳会显著损害生活质量.
- 目前用于SSNHL的治疗方法在药物的生物可用性和清除方面存在局限性.
- 需要一个本地联合递送系统来克服内耳药物管理的这些局限性.
研究的目的:
- 开发和评估一种用于持续释放内耳中德甲 (DEX) 和利多卡因的新型联合输送系统.
- 将DEX微晶 (DEX MCs) 与含有利多卡因的多分子 (乳酸-联合甘油酸) 非球形微粒 (LPNMs) 结合起来.
- 评估共同交付系统在海豚中的体内药理动力学和生物相容性.
主要方法:
- 通过沉制备的DEX MCs;通过双乳液溶剂蒸发制备的LPNMs.
- 物理化学性质和药物释放动力学的表征.
- 在内内进行的药理动力学和生物相容性研究,在注入入内膜后对海豚进行研究.
主要成果:
- 德克斯MCs显示稳定溶解;LPNMs提供持续的利多卡因释放.
- 在体内研究表明,长时间的药物保留在周周淋巴和改善的药理动力学.
- 组织学评估证实了良好的生物相容性,没有显著的内耳损伤.
结论:
- 开发的共同输送系统可以作为内耳持续释放DEX和利多卡因的存储库.
- 该系统为与耳相关的SSNHL的协同治疗提供了一个有希望的策略.
- 这项研究突出了基于微粒的共同交付对内耳治疗的潜力.
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