Characterization, pharmacokinetics, and hypoglycemic effect of berberine loaded solid lipid nanoparticles

International Journal of Nanomedicine
Mei XueShu-yu Yang

Abstract

The high aqueous solubility, poor permeability, and absorption of berberine (BBR) result in its low plasma level after oral administration, which greatly limits its clinical application. BBR solid lipid nanoparticles (SLNs) were prepared to achieve improved bioavailability and prolonged effect. Developed SLNs showed homogeneous spherical shapes, small size (76.8 nm), zeta potential (7.87 mV), encapsulation efficiency (58%), and drug loading (4.2%). The power of X-ray diffraction combined with (1)H nuclear magnetic resonance spectroscopy was employed to analyze chemical functional groups and the microstructure of BBR-SLNs, and indicated that the drug was wrapped in a lipid carrier. Single dose (50 mg/kg) oral pharmacokinetic studies in rats showed significant improvement (P<0.05) in the peak plasma concentration, area under the curve, and variance of mean residence time of BBR-SLNs when compared to BBR alone (P<0.05), suggesting improved bioavailability. Furthermore, oral administration of both BBR and BBR-SLNs significantly suppressed body weight gain, fasting blood glucose levels, and homeostasis assessment of insulin resistance, and ameliorated impaired glucose tolerance and insulin tolerance in db/db diabetic mice. BBR-SLNs ...Continue Reading

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Citations

Feb 7, 2016·Fitoterapia·Chang-Shun LiuXiao-Ying Long
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Methods Mentioned

BETA
dynamic light scattering
transmission electron microscopy
X-ray
nuclear magnetic resonance
NMR

Software Mentioned

PRESAT
DAS

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