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Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

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Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
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Pharmacological therapies for IBS-C are designed to alleviate abdominal discomfort and enhance bowel function. In patients with IBS-C, fiber supplements may help soften stools and decrease straining, but may also lead to increased gas production and bloating. Osmotic laxatives like milk of magnesia are frequently used to soften stools and increase stool frequency in IBS-C patients. In addition, two drugs approved for use in severe IBS-C adult cases are linaclotide (Linzess) and lubiprostone...
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相关实验视频

Updated: Dec 25, 2025

Microfluidic Production of Lysolipid-Containing Temperature-Sensitive Liposomes
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含有西普罗夫洛克萨的电喷乳糖颗粒.

Sai Liu1, Simon Gaisford1, Gareth R Williams1

  • 1UCL School of Pharmacy, University College London, 29 - 39 Brunswick Square, London WC1N 1AX, UK.

International journal of pharmaceutics
|May 24, 2025
PubMed
概括
此摘要是机器生成的。

电子喷雾制造了充满西普罗素 (西普罗) 的乳糖微粒,用于细菌感染. 这些颗粒显示出快速释放药物和有效的抗菌活性对金黄色葡萄球菌和 Pseudomonas aeruginosa.

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科学领域:

  • 制药科学 制药科学
  • 材料科学 材料科学 材料科学

背景情况:

  • 细菌感染仍然是一个重大的全球健康问题.
  • 先进的药物输送系统对于对抗这些感染至关重要.

研究的目的:

  • 探索用电子喷射制造含有西普洛素的乳糖微粒的方法.
  • 使用聚乙烯醇 (PVA) 来优化电喷过程以增强颗粒形成.

主要方法:

  • 使用电喷技术制造了乳糖微粒.
  • 聚乙醇 (PVA) 用作添加剂,以改善颗粒形成.
  • 分析了西普洛克萨辛的加载和释放动力学.

主要成果:

  • 球形电喷 (ES) 乳糖微粒与西普洛素负载从0.25%到1.07%w/w成功生产.
  • 埃斯粒子是无形的,含有剩余水.
  • 在5小时内观察到药物快速释放.
  • 证明了对黄金葡萄球菌和Pseudomonas aeruginosa的度依赖的抗菌活性.

结论:

  • 电子喷雾是一种可行的方法,用于生产含有西普洛素的无形乳糖微粒.
  • 开发的ES颗粒显示出治疗急性细菌感染的潜力,这是由于药物释放速度快和强大的抗菌作用.