准备,体外和体内评估一种新型的mitiglinide微乳液
Miaomiao Wang1, Hanghang Li2, Wenzhi Yang2
1Department of Pharmacy, Baoding NO. 1 Central Hospital, Baoding Great Wall North Street No. 320, Hebei Province, Baoding 071000, China.
概括
这项研究开发了一种油在水中的米提格林化微乳液 (MTGME),以提高药物的溶解性和生物可用性. 优化的MTGME配方有效降低了糖尿病小鼠的血糖水平,并改善了大鼠的口服生物可用性.
科学领域:
- 制药科学 制药科学
- 药物输送系统 药物输送系统
- 纳米技术 纳米技术
背景情况:
- 米蒂格利尼德 (MTG) 是一种具有有限口服生物可用性的抗糖尿病药物.
- 开发有效的药物输送系统对于提高MTG的治疗疗效至关重要.
- 微乳液具有提高难溶性药物的可溶性和吸收的潜力.
研究的目的:
- 准备和优化用于口服的油在水中的米提格林化微乳液 (MTGME).
- 评估开发的MTGME的物理化学特性,稳定性,药理动力学和药理动力学.
- 评估MTGME的潜力,作为一种改进的口服药物输送系统,用于缓解利尼德.
主要方法:
- 使用可溶性研究,伪三元相图和Box-Behnken设计进行配方优化.
- 使用动态光散射 (DLS),泽塔电位和传输电子显微镜 (TEM) 进行MTGME的表征.
- 在糖尿病小鼠和Wistar大鼠体内评估,包括血糖水平监测和药理动力学分析.
主要成果:
- 最佳的MTGME配方包括Maisin 35-1 (油),Cremophor EL (表面活性剂) 和甘醇 (PG,表面活性剂).
- 优化的MTGME表现出球形结构 (58.1nm),并在4°C保持稳定3个月.
- 与大鼠的MTG悬浮剂相比,MTGME的胃内给药显著降低了糖尿病小鼠的血糖水平 (降低了多达69%),并提高了血药物度 (2.9倍),AUC (4.6倍) 和口服生物可用性.
结论:
- 开发的油与水的米提格林化微乳液 (MTGME) 是一种稳定有效的口服药物输送系统.
- MTGME显著改善了米丁利尼德的生物可用性和抗高血糖作用.
- 微乳液技术有望提高米蒂格林尼德和类似难溶药物的治疗效果.
相关概念视频
01:16Methods for Studying Drug Absorption: In vitro
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In vitro experiments are crucial for understanding the transport and absorption of drugs through biological materials. These studies employ varied methods such as the diffusion cell method, the everted sac technique, and the everted ring technique.
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
234
01:09Methods for Studying Drug Absorption: In situ
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In situ experiments, such as the Doluisio method and Single-Pass Perfusion technique, provide critical insights into drug uptake by simulating in vivo conditions for drug absorption.
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
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