期刊
ARCHIVES OF PHARMACAL RESEARCH
卷 33, 期 12, 页码 1975-1984出版社
PHARMACEUTICAL SOC KOREA
DOI: 10.1007/s12272-010-1213-2
关键词
Ginsenosides Rg(1); LC-MS/MS; Pharmacokinetics; Tissue distribution; Metabolism; Excretion
资金
- Education Department of the Sichuan Province, China [07ZB019]
The pharmacokinetics, tissue distribution, metabolism, and excretion of ginsenosides Rg(1) were studied in Wistar rats, by measuring the concentrations of Rg(1) and its metabolites in the blood, tissues, bile, urine, and feces after dosing. After intravenous (i.v.) administration, the elimination half-lives of Rg(1) and its metabolites were 1.82, 5.87, and 6.87 h, and the area under the curves were 1595.7, 597.5, and 805.6 ng . h/mL, respectively. After oral administration, the elimination half-lives of Rg(1) and its metabolites were 2.25, 6.73, 5.44, and 5.06 h, and the area under the curves were 2363.5, 4185.5, 3774.3, and 396.2 ng . h/mL, respectively. After iv. administration, Rg(1) and its metabolites were well distributed to the tissues analyzed except for the brain. The maximum concentration of Rg(1) was reached in all tissues at 5 min post dose, and it was eliminated from most of the tissues except for the kidney faster than it was eliminated from the blood. The maximum concentration of the metabolites was reached in all tissues between 4 and 6 h post dose. After i.v. administration, the recovery of the Rg(1) prototype in the urine and bile was 27.96% and 60.77%, respectively. The metabolism of Rg(1) in the intestine was via a hydrolization pathway, with the 6-and 20-glucoside bond hydrolyzed gradually under the catalysis of beta-glucosaccharase, and then the metabolites were reabsorbed into the blood. Finally, the total recovery of the Rg(1) prototype and its metabolites in the urine and feces were 51.31% and 47.46%, respectively.
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