基于PVA的散装微针能够承受高胰岛素负荷和pH触发的降解,用于多反应和持续的低血糖治疗
Yuhong Ma1, Wei Wang1, Mujiao He1
1Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China. cpuhdc@cpu.edu.cn.
Biomaterials science
|December 13, 2023
概括
这项研究引入了用于糖尿病管理的新型微针,提供了改善胰岛素加载和控制释放的方法. 这些微针提供持续的低血糖治疗,提高患者的生活质量.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 内分泌学 在内分泌学.
背景情况:
- 糖尿病是一种重大的全球健康挑战,需要先进的治疗策略.
- 目前的胰岛素输送方法,包括微针,面临诸如低胰岛素容量,不可预测的降解和复杂的制造等局限性.
- 闭环系统旨在实现葡萄糖控制的自动化,但通常需要与散装微针复杂的集成.
研究的目的:
- 开发一种简化,高胰岛素负载的微针系统,用于多反应和持续的低血糖治疗.
- 为了提高血糖反应,并减少与基于微针的糖尿病治疗相关的炎症.
- 创建一个pH触发的微针系统,以改善糖尿病管理.
主要方法:
- 通过 in situ 光聚合制造,制造基于聚乙烯醇的散装微针 (MNs@GI).
- 葡萄糖氧化酶 (GOx) 和胰岛素在微针中同时封装,其特点是具有乙烯 Ester 结构.
- 与仅用胰岛素的微针 (MNs@INS) 相比,MNs@GI对血糖调节的体内评估.
主要成果:
- 开发的MNs@GI显著简化了制备过程,并提高了胰岛素的载荷能力.
- 微针显示出增强的血糖反应,控制高葡萄糖条件下的胰岛素释放.
- 在体内研究显示,有效的血糖调节在正常范围内约10小时.
- 该系统显示正常皮肤的炎症风险降低,并有可能通过酸水解释放进一步的胰岛素.
结论:
- 基于聚乙醇的微针 (MNs@GI) 为糖尿病治疗中多反应和持续的低血糖治疗提供了一个有希望的解决方案.
- MNs@GI的简化制备和高胰岛素载荷能力解决了现有微针技术的关键局限性.
- 这种pH触发,多响应的微针系统具有改善糖尿病管理和患者生活质量的巨大潜力.
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