Journal
PHARMACEUTICAL DEVELOPMENT AND TECHNOLOGY
Volume 26, Issue 10, Pages 1051-1060Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10837450.2021.1980010
Keywords
Pueraria flavones; liposomes; bile salts; sodium deoxycholate; oral bioavailability
Categories
Funding
- National Natural Science Foundation of China [81873019]
- University Synergy Innovation Program of Anhui Province [GXXT2020-025]
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The study improved the oral absorption of PF by preparing PF-loaded SDC-Lips, enhancing its pharmacokinetic parameters and showing potential in treating cardiovascular and cerebrovascular diseases.
Pueraria flavone (PF), the main component of Pueraria lobata, is a traditional Chinese medicine used for the treatment of cardiovascular and cerebrovascular diseases; however, it exhibits low oral bioavailability because of its poor membrane permeability. In this study, PF-loaded sodium deoxycholate-decorated liposomes (SDC-Lips) were prepared using the reverse-phase evaporation method and optimised using the Box-Behnken design method. The morphology, particle size, zeta potential, and entrapment efficiency of these PF-loaded SDC-Lips were evaluated. The release behaviours of PF-loaded SDC-Lips in simulated gastric and intestinal fluids were consistent with the Weibull kinetic model. In situ intestinal perfusion studies showed that the absorption characteristics of free PF in rats were mainly passive diffusion and partly active transport, and the duodenum was the main absorption site. After encapsulated with SDC-Lips, the absorption of PF increased significantly. The in vivo pharmacokinetic parameters of area under the plasma concentration-time curve (AUC)((0 -> 12 h)) and AUC((0 -> infinity)) of PF-loaded SDC-Lips after intragastric administration were 1.34-fold and 1.543-fold, respectively. Overall, the PF-loaded SDC-Lips improved the oral absorption of PF by increasing its solubility and might be considered a promising formulation strategy for prolonging the biological activity time of PF.
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