Abstract
Huangqi Jianzhong Tang (HQJZ) is a famous traditional Chinese medicine formula widely used in the treatment of gastrointestinal diseases in China. In this study, an ultra-performance liquid chromatography-mass spectrometry (UHPLC-MS/MS) was used to study the pharmacokinetics of 12 prototypical components and one metabolite in HQJZ in normal and chronic atrophic gastritis rats. The results showed that the area under the concentration-time curve and peak concentration of most flavonoids and flavonoid glycosides were decreased, and the half-life and mean residence time were significantly increased, which indicated that the absorption of drugs in disease was decreased less and for longer in vivo. Then, an integrated pharmacokinetic study was carried out using the pharmacokinetic parameter model integration of each component. The results showed that the absorption of drugs in vivo with disease was reduced, and the absorption speed of flavonoids and flavonoid glycosides was accelerated. This study will provide the basis for the clinical medication safety of HQJZ.
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