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Development of an Innovative Berberine Food-Grade Formulation with an Ameliorated Absorption: In Vitro Evidence
Giovanna Petrangolini1, Fabrizio Corti1, Massimo Ronchi1
1Research and Development Department, Indena SpA, 20139 Milan, Italy.
Objective:
To evaluate in vitro solubility, bioaccessibility, and cytotoxic profile, together with a pharmacokinetic profile by oral administration to healthy volunteers of a novel food-grade berberine formulation (BBR-PP, i.e., berberine Phytosome®).
Results:
An in vitro increase of solubility in simulated gastric and intestinal fluids and an improved bioaccessibility at intestinal level along with a lower cytotoxicity with respect to berberine were observed with BBR-PP. The pharmacokinetic profile of the oral administration to healthy volunteers confirmed that berberine Phytosome® significantly ameliorated berberine absorption, in comparison to unformulated berberine, without any observed side effects. The berberine plasma concentrations observed with both doses of BBR-PP were significantly higher than those seen after unformulated berberine administration, starting from 45 min (free berberine) and 30 min (total berberine). Furthermore, BBR-PP improved berberine bioavailability (AUC) was significantly higher, around 10 times on molar basis and with observed dose linearity, compared to the unformulated berberine.
Conclusion:
These findings open new perspectives on the use of this healthy berberine formulation in metabolic discomforts.
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