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Aim: The aim of this study was to develop a formulation that combines a phospholipid complex (PC) and self-microemulsifying drug delivery system (SMEDDS) to improve the bioavailability of poorly water-soluble resveratrol (RES), called RPC-SMEDDS. Methods: RES-PC (RPC) and RPC-SMEDDS were optimized by orthogonal experiment and central composite design, respectively. The characteristics and mechanism of intestinal absorption were studied by Ussing chamber model. The pharmacokinetics was evaluated in rats. Results: RES was the substrate of MRP2 and breast cancer resistance protein (BCRP) rather than P-gp. The prepared RPC-SMEDDS prevented the efflux mediated by MRP2 and BCRP and improved the bioavailability of RES. Conclusion: These results suggested that the combination system of PC and SMEDDS was a promising method to improve the oral bioavailability of RES.


Xinxin Luo, Dandan Wang, Min Wang, Suya Deng, Yike Huang, Zhining Xia. Development of phospholipid complex loaded self-microemulsifying drug delivery system to improve the oral bioavailability of resveratrol. Nanomedicine (London, England). 2021 Apr;16(9):721-739

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PMID: 33860675

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