...
首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >Development and characterization of exendin-4 loaded self-nanoemulsifying system and in vitro evaluation on Caco-2 cell line
【24h】

Development and characterization of exendin-4 loaded self-nanoemulsifying system and in vitro evaluation on Caco-2 cell line

机译:激光腺-4载荷自纳中乳化系统的开发与表征及Caco-2细胞体外评价

获取原文
获取原文并翻译 | 示例
           

摘要

Aim: Aim of this study was to develop exendin-4 and exendin-4/chymostatin loaded self-nanoemulsifying drug delivery system (SNEDDS). Methods: Surfactants and co-surfactants were mixed, oil phase containing exendin-4 or exendin-4/chymostatin was added dropwise for SNEDDS. Short term physical stability test was performed prior to the release, lipolysis and permeability studies. Results: SNEDDS containing ethyl oleate: Cremophor EL(R): Labrasol(R): propylene glycole (15:42.5:21.25: 21.25) were selected for in vitro release and intestinal permeability studies for suitable parameters and physical stability test results. SNEDDS were obtained which yielded Grade B nanoemulsions having droplet size below 25 nm. In vitro release studies showed that 73.79% of the peptide was released for 2 h at pH 6.8. Both exendin-4 and exendin-4/chymostatin loaded SNEDDS were non-toxic to Caco-2 cells. Permeability coefficients of both exendin-4 loaded SNEDDS and exendin-4/chymostatin loaded SNEDDS were higher than exendin-4 solution. Conclusions: Intestinal permeability of exendin-4 has been improved by SNEDDS formulations.
机译:目的:本研究的目的是开发exendin-4和exendin-4/凝乳抑素自乳化给药系统(SNEDDS)。方法:将表面活性剂和助表面活性剂混合,滴加含exendin-4或exendin-4/凝乳抑素的油相进行SNEDDS。在释放、脂解和渗透性研究之前进行短期物理稳定性试验。结果:选择含有油酸乙酯:克瑞莫酚EL(R):拉布拉索(R):丙二醇(15:42.5:21.25:21.25)的SNEDD进行体外释放和肠道通透性研究,以获得合适的参数和物理稳定性试验结果。获得了SNEDD,其产生的B级纳米乳液的液滴尺寸小于25 nm。体外释放研究表明,73.79%的肽在pH 6.8下释放2小时。exendin-4和exendin-4/凝乳抑素负载的SNEDDS均对Caco-2细胞无毒。加载exendin-4的SNEDDS和加载exendin-4/凝乳抑素的SNEDDS的渗透系数均高于exendin-4溶液。结论:SNEDDS制剂改善了exendin-4的肠道通透性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号