瓜尔作为口服结肠输送系统的微生物可降解成分,基于组合策略:配方和体外评估
Saliha Moutaharrik1, Gabriele Meroni2, Alessio Soggiu2
1Dipartimento di Scienze Farmaceutiche, Sezione di Tecnologia e Legislazione Farmaceutiche "M.E. Sangalli", Università degli Studi di Milano, Via G. Colombo 71, 20133, Milan, Italy.
Drug delivery and translational research
|October 12, 2023
概括
这项研究开发了一种新的双层口服药物输送系统,用于可靠的结肠向. 涂层中的瓜尔会通过肠道微生物群释放药物,克服水友性挑战.
科学领域:
- 制药科学 制药科学
- 药物输送系统 药物输送系统
- 胃肠病学 胃肠病学
背景情况:
- 基于多糖的结肠输送系统面临挑战,因为水友性阻碍了准.
- 开发可靠的结肠特异性药物释放机制对于治疗结肠疾病至关重要.
研究的目的:
- 制造和评估一个可靠的结肠药物释放的双层系统.
- 为了利用肠道微生物群,pH值和传输时间来增强药物向.
- 评估瓜尔在微生物群介导的药物释放中的作用.
主要方法:
- 用基基甲基纤维素 (HPMC) 和Eudragit® S/guar制造双涂层药片系统.
- 在模拟的胃 (0.1 N HCl) 和肠道 (pH 7.4 酸盐缓冲区) 条件下进行体外药物释放研究.
- 在模拟的结肠液中评估药物释放与便细菌和β-mannanase.
主要成果:
- 双涂层系统在体外显示出胃阻力和一致的滞后阶段.
- 尤德拉吉特®S和瓜尔协同延长了滞后阶段,确保结肠向.
- 在含有细菌的模拟结肠液中观察到更快的药物释放,这表明微生物引发的释放.
- 瓜尔促进了细菌降解和药物释放,而不会损害涂层的完整性.
结论:
- 开发的双层系统为可靠的结肠药物输送提供了一种可行的方法.
- 瓜尔在结肠细菌的存在下有效触发药物释放.
- 模拟结肠液制备的优化程序提高了测试效率和可重复性.
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