Pharmacokinetics, intestinal absorption and microbial metabolism of single platycodin D in comparison to Platycodi radix extract

Platycodi radix, the dried root of Platycodon grandiflorum A. DC, has been widely used as food and herb medicine for treating cough, cold and other respiratory ailments, and platycodin D (PD) is one of the most important compounds in Platycodi Radix. The purpose of this study was to compare the phar...

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Bibliographic Details
Published in:Pharmacognosy Magazine 2015-10, Vol.11 (44), p.750-755
Main Authors: Shan, Jinjun, Zou, Jiashuang, Xie, Tong, Kang, An, Zhou, Wei, Deng, Haishan, Mao, Yancao, Di, Liuqing, Wang, Shouchuan
Format: Article
Language:English
Subjects:
Behavior
Campanulaceae
Chromatography
Comparative analysis
Drug dosages
Feces
Health aspects
Intestinal absorption
Laboratory animals
Metabolism
Microbial metabolism
Original
Pharmacological research
Phytochemicals
Plant extracts
Scientific imaging
Software
Studies
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Summary:Platycodi radix, the dried root of Platycodon grandiflorum A. DC, has been widely used as food and herb medicine for treating cough, cold and other respiratory ailments, and platycodin D (PD) is one of the most important compounds in Platycodi Radix. The purpose of this study was to compare the pharmacokinetic characteristics, intestinal absorption and microbial metabolism of PD in monomer with that in Platycodi radix extract (PRE). In the pharmacokinetic study, the concentrations of PD in rat plasma were determined by ultra-performance liquid chromatography-tandem mass spectrometry and the main pharmacokinetic parameters were calculated by data analysis software (DAS). Besides, in vitro Caco-2 cells and fecal lysate were performed to investigate the intestinal absorption and metabolism, respectively. The results from pharmacokinetics showed that the area under the curve, the peak concentration the time to reach peak concentration and mean residence time of PD in PRE were enhanced significantly compared with that in single PD. Caco-2 cells transport study indicated that the absorption of PD both in monomer and in PRE were poor owning that the permeability of PD were
ISSN:0973-1296
0976-4062
DOI:10.4103/0973-1296.165576