The In Vitro and In Vivo Study on Self-Nanoemulsifying Drug Delivery System (SNEDDS) Based on Insulin-Phospholipid Complex
Self-nanoemulsifying drug delivery system (SNEDDS) was developed to enhance the absorption of insulin after oral administration, where insulin was complexed with phospholipid to achieve a better liposolubility in the form of insulin-phospholipid complex (IPC). IPC was formulated into the oil phase of SNEDDS by solvent-evaporation method. The formula of IPC-SNEDDS was optimized and characterized. Data showed that SNEDDS as a drug vehicle did not exhibit an obvious inhibition over MDCK cells, and it can facilitate the transport of IPC across MDCK cell monolayer. IPC-SNEDDS could enhance the absorption of insulin after oral administration and yielded a pronounced hypoglycemic effect on diabetic Wistar rats. All these suggested that IPC-SNEDDS has a great potential for oral delivery of insulin.
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Document Type: Research Article
Publication date: February 1, 2012
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