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題 名 | Comparison of Urinary Kinetics between Traditional Decoction and Concentrated Powders of Puerariae Radix in Healthy Men=葛根水煎劑與濃縮散劑於健康人體尿藥動力學之比較 |
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作 者 | 侯鈺琪; 李珮端; 葉怡柔; 楊詩盈; 蔡尚元; | 書刊名 | Journal of Food and Drug Analysis |
卷 期 | 19:4 2011.12[民100.12] |
頁 次 | 頁517-522+542 |
分類號 | 414.53 |
關鍵詞 | 異黃酮; 葛根; 尿藥動力學; 代謝物; Puerarin; Daidzin; Daidzein; Isoflavone; Pueraria lobata; Pharmacokinetics; Metabolites; |
語 文 | 英文(English) |
英文摘要 | Puerariae Radix (PR), the roots of Pueraria lobata (Leguminosae), is widely used in clinical Chinese medicine and also as a food in oriental countries. PR is a rich source of isoflavones including puerarin, daidzin and daidzein. This study was aimed to compare the urinary kinetics of isoflavones between traditional decoction (TD) and concentrated powders (CP) of PR in healthy man. Ten male volunteers were given two dosage forms of PR in a crossover design and their urine was collected at specific intervals until 36 h. Urine samples were assayed by an HPLC method before and after hydrolysis with β-glucuronidase and sulfatase. The results indicated that the parent forms of puerarin, daidzin and daidzein were not detected in urine, whereas daidzein sulfates/glucuronides were predominant, mainly sulfates. The half-lives of daidzein sulfates/glucuronides were 5 - 7 h. In conclusion, the isoflavones were exclusively metabolized to sulfates/glucuronides of daidzein following administration of TD and CP of PR. Through the comparison of urine kinetics between two dosage forms, we suggest that the standardization of the contents of daidzin and daidzein, which are bioavailable, is more important than puerarin content for the efficacy of PR. |
本系統中英文摘要資訊取自各篇刊載內容。