双刺激响应的输送系统用于自我调节的结肠向输送水溶性较差的药物
Mohmmad E Rabeh1, Lalitkumar K Vora1, Jessica V Moore1
1School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, UK.
Biomaterials advances
|December 28, 2023
概括
这项研究开发了一种智能水凝,用于向结肠药物输送,改善炎症性肠病 (IBD) 治疗. 响应pH和酶的系统增强了药物在结肠中的释放,减少了全身副作用.
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
- 胃肠病学 胃肠病学
背景情况:
- 炎症性肠病 (IBD) 由于慢性炎症导致的患者患病率显著.
- 目前的IBD治疗可能会引起副作用;局部结肠药物输送提供了更好的疗效.
- 响应pH和酶系统可以增强向结肠的向药物输送.
研究的目的:
- 为了合成和描述一种新的pH和酶响应性共聚合物水凝.
- 评估水凝对IBD治疗药物的结肠向药物递送的潜力.
- 在模拟的胃肠和结肠条件下评估药物释放特征.
主要方法:
- 一种2-基乙基甲酸和甲酸共聚物的合成,与一种阿佐本酸交叉连接剂交叉连接.
- 在pH值1.2,6.5和7.4的缓冲区中分析水凝膨胀.
- 药物释放研究使用在存在老鼠白内障物质的情况下的甲和梅萨拉.
主要成果:
- 水凝表现出pH响应的胀,pH7.4 (69%) 的最大胀,pH1.2 (32%) 的最小胀.
- 在模拟的胃和小肠状况中,药物释放显著受到限制 (pH1.2,6.5).
- 在结肠条件下观察到大量的药物释放 (pH 7.4 与白内障物质).
结论:
- 开发的水凝显示出有效的pH和酶响应性行为,用于结肠向的输送.
- 这种系统显示出增强IBD水溶性较差药物的溶解和局部递送的潜力.
- 智能水凝为局部结肠治疗提供了一个潜在的策略,最大限度地减少全身暴露和副作用.
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