1. Mechanochemical preparation of kaempferol intermolecular complexes for enhancing the solubility and bioavailability
- Author
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Murong Wen, Qihong Zhang, Jingbo Yu, Wenhao Xu, Weike Su, Alexandr V. Dushkin, and Nikolay E. Polyakov
- Subjects
Male ,0301 basic medicine ,Chemistry, Pharmaceutical ,Drug Compounding ,Administration, Oral ,Biological Availability ,Pharmaceutical Science ,Polysaccharide ,Galactans ,01 natural sciences ,Streptozocin ,Diabetes Mellitus, Experimental ,Excipients ,Rats, Sprague-Dawley ,Mice ,03 medical and health sciences ,chemistry.chemical_compound ,X-Ray Diffraction ,In vivo ,Mechanochemistry ,Drug Discovery ,Animals ,Humans ,Hypoglycemic Agents ,Kaempferols ,Particle Size ,Solubility ,Dissolution ,Pharmacology ,chemistry.chemical_classification ,Mice, Inbred ICR ,010405 organic chemistry ,Organic Chemistry ,Biological activity ,Glycyrrhizic Acid ,Rats ,0104 chemical sciences ,Bioavailability ,Drug Liberation ,030104 developmental biology ,chemistry ,Kaempferol ,Nuclear chemistry - Abstract
In this study, complexes of kaempferol (KF) with polysaccharide arabinogalactan (AG) and disodium glycyrrhizinate (Na2GA) were prepared through mechanochemical technique to improve the solubility and bioavailability of KF. The physicochemical properties and the interactions of KF with AG/Na2GA were investigated through dissolution, SEM, XRD, and DSC studies. The reduction of particle sizes and destruction of crystal forms revealed the formation of solid dispersion which may have assisted the dissolution of the drug. The accelerated stability study showed higher stability for KF-Na2GA complex. In vivo pharmacokinetic study was performed to observe the plasma drug concentrations for KF complexes. Mechanochemical complexation of KF with AG/Na2GA improved the pharmacological activity as evident by the inhibitory potential of the complexes towards carbohydrate metabolic enzymes. In vivo studies were performed in STZ-induced diabetic mice, where the group treated with KF-AG complex showed better liver and kidney function and lower blood glucose levels than pure KF. Therefore, mechanochemical complexes of KF with polysaccharide or glycyrrhizate may serve as a promising formulation for the treatment of diabetes.
- Published
- 2018
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