Journal
DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
Volume 47, Issue 1, Pages 113-125Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/03639045.2020.1862170
Keywords
Puerarin; phospholipid complex; nanostructured lipid carrier; central composite design; alcohol-induced hepatocyte injury; BRL-3A cell
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Funding
- Shenyang Pharmaceutical University Scientific Research Foundation [GGJJ2015102]
- Liaoning Province Science and Technology Project [20170540864]
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This study aimed to develop an optimized puerarin-loaded nanostructured lipid carrier based on a phospholipid complex, determining the optimal formulation and assessing its hepatoprotective effect.
The present work was aimed at developing optimized puerarin-loaded nanostructured lipid carrier (PA-NLC) on base of phospholipid complex. The puerarin phospholipid complex (PA-PC) was prepared by a solvent evaporation method and the formulation was confirmed according to the encapsulation efficiency (EE%). The hepatoprotective effect of PA-NLC on BRL 3A cell stimulated by ethanol was carried out using MTT assay, and cell imaging was done using an inverted phase contrast tissue culture microscope. The NLCs were produced by nanoemulsion method using glyceryl monostearate (GMS), olive oil, and Poloxamer 188 as the solid, liquid lipids, and surfactant. A single factor analysis determined the optimal ratio of solid lipid to liquid lipid. A three-factor, five-level central composite design (CCD) was used to predict response variables and construct 3D-response contour plots. The independent variables, which were the concentrations of PA-PC, total lipid, and surfactant affected particle size, surface charge of the nanoparticles, and the EE. An optimized NLC composition consisted of 31.25% PA-PC, 46.87% GMS, 9.38% olive oil, and 18.75% Poloxamer 188. The NLC had an average particle size of 159 +/- 1.1 nm, zeta potential of -28.3 mV, EE% of 92.16%, and drug loading (DL%) of 5.75%. Differential scanning calorimetry (DSC), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR) studies showed that the formation of NLC was accompanied by changes in crystallinity and intermolecular interaction. The PA-NLC system showed an enhanced therapeutic effect on alcohol-induced cell injury of BRL-3A.
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