Document Detail


Food- and gender-dependent pharmacokinetics of paeoniflorin after oral administration with Samul-tang in rats.
MedLine Citation:
PMID:  22543167     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
ETHNOPHARMACOLOGICAL RELEVANCE: Samul-tang (Si-Wu-tang in Chinese, Shimotsu-to in Japanese), widely used in eastern Asia, is composed of Angelica gigas (Angelicae Gigantis Radix), Cnidium officinale (Cnidii Rhizoma), Paeonia lactiflora (Paeonia Radix) and Rehmannia glutinosa (Rehmanniae Radix Preparata). Paeoniflorin, one of active components in Samul-tang has anti-platelet, anti-inflammation, anti-cancer and neuroprotective properties. However, there is no information about the effects of gender and food intake on the pharmacokinetics of paeoniflorin till now. AIM OF THE STUDY: This study was conducted to investigate whether food and gender could influence pharmacokinetic profiles of paeoniflorin after oral administration of Samul-tang. MATERIALS AND METHODS: Male and female rats were administered with a single oral dose of Samul-tang equivalent to 80mg/kg of paeoniflorin. Plasma concentrations of paeoniflorin were measured by high-performance liquid chromatography. The statistical differences of each group were evaluated using the analysis of variance (ANOVA) or Student t-test. RESULTS: The pharmacokinetic parameters of paeoniflorin were not significant different by gender difference. However, the maximum plasma concentration (C(max), 0.47±0.29μg/mL versus 1.10±0.35μg/mL), area under the concentration-time curve (AUC(0→∞), 1.41±0.89hμg/mL versus 3.12±1.61hμg/mL) and relative bioavailability (F(rel)=2.21) of fed rats were significantly increased in comparison with those of fasted rats (P<0.05). CONCLUSION: Taken together, food intake can affect both the rate and extent of absorption of paeoniflorin when Samul-tang was administered orally. Furthermore, this study demonstrates a readily preparative HPLC method in the research of traditional herbal medicine.
Authors:
Youn-Hwan Hwang; Tae-Soo Kim; Won-Kyung Cho; Doo-Rae Jang; Jung-Ho Ha; Jin-Yeul Ma
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-21
Journal Detail:
Title:  Journal of ethnopharmacology     Volume:  -     ISSN:  1872-7573     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7903310     Medline TA:  J Ethnopharmacol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ireland Ltd.
Affiliation:
TKM-Based Herbal Drug Research Group, Korea Institute of Oriental Medicine, Daejeon 305-811, South Korea.
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