跨度值作为PLGA微球的关键质量属性:控制爆破释放并通过湿提高治疗效率
Lele Wang1, Wenqiang Liu1, Qiqi Jiang1
1Research and Industrialization of New Drug Release Technology Joint Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
Pharmaceutics
|February 27, 2026
概括
使用湿控制多乳-co-glycolic 酸) 微球的颗粒大小分布 (Span 值),可显著改善骨关节炎模型中的药物释放一致性和治疗疗效.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 纳米技术 纳米技术
背景情况:
- 聚乳-同-甘油酸 (PLGA) 微球用于持续的药物输送.
- 广泛的颗粒大小分布 (PSD) 导致药物释放不一致.
- 控制PSD对于可预测的性能至关重要.
研究的目的:
- 研究湿以控制PLGA微球PSD.
- 评估PSD控制 (Span值) 对三氨酸 (TA) 加载微球性能的影响.
- 在体内评估药理动力学和治疗结果.
主要方法:
- 用TA装载的PLGA微球是使用乳化溶剂蒸发制备的.
- 湿被用于将微球分成不同的尺寸和多分散性 (Span) 群体.
- 描述包括PSD,药物负载,形态,体外释放,以及在老鼠骨关节炎模型中的体内药理学和疗效研究.
主要成果:
- 湿成功地产生了具有受控Span值 (1.4,0.8,0.5) 的微球.
- 减少的Span显著减少了爆发释放 (24.15%至14.51%) 和延长了平均停留时间 (88.52至123.53小时).
- 下方Span值在体内增强了抗炎和软骨保护作用.
结论:
- 跨度值是PLGA微球的关键质量属性,独立于平均粒子大小.
- 湿是一种有效的方法来控制PSD并确保批次对批次的一致性.
- 优化PSD导致可预测的体内表现和改善治疗结果.
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