期刊
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
卷 114, 期 -, 页码 168-175出版社
ELSEVIER
DOI: 10.1016/j.jpba.2015.05.017
关键词
Kaempferol; Kaempferol-phospholipid complex; Pharmacokinetics; Bioavailability
As one of the dietary flavonoids, kaempferol (KP) has been well known to show strong anti-oxidative effect along with other biological properties. However, the oral bioavailability of KP is relatively low due to its poor solubility. In this study, we intended to increase the solubility and bioavailability of KP by preparing kaempferol-phospholipid complex (KP-PC). The KP-PC's physicochemical properties were characterized in terms of infrared spectroscopy (IR), differential scanning calorimetry (DSC) and powder X-ray diffraction (PXRD), water/n-Octanol solubility and in vitro dissolution. KP-PC exhibited higher solubility and dissolution rate than KP, indicating a significant improvement in hydrophilicity. A UPLC-ESI-MS/MS method was developed and validated for the determination of KP in Sprague-Dawley (SD) rat plasma, so as to investigate the oral bioavailability of KP-PC versus KP. Results showed that C-max and AUC(0-48h) of KP from the complex (C-max: 3.94 +/- 0.83 mu g/mL, AUC(0-48h): 57.81 +/- 9.43 mg/Lh) were higher than that of KP (C-max: 1.43 +/- 0.21 mu g/mL, AUC(0-48h): 13.65 +/- 3.12 mg/L h). This research indicated that phospholipid complex (PC) might be one of the suitable approachs to improve the oral bioavailability of KP and other poor-solubility flavonoids. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据