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논문 기본 정보

자료유형
학술저널
저자정보
Wang, Chang-Hong (Key Laboratory of Standardization of Chinese Medicines of Ministry of Education, The Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Sh) Cheng, Xue-Mei (Key Laboratory of Standardization of Chinese Medicines of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai R&D Centre for Standardization of Chin) He, Yu-Qi (Key Laboratory of Standardization of Chinese Medicines of Ministry of Education, The Institute of Traditional Chinese Medicine) White, Kenneth N. (Institute for Health Research and Policy, London Metropolitan University) Bligh, S.W.Annie (Institute for Health Research and Policy, London Metropolitan University) Branford-White, Christopher J. (Institute for Health Research and Policy, London Metropolitan University) Wang, Zheng-Tao (Key Laboratory of Standardization of Chinese Medicines of Ministry of Education, The Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Sha)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제30권 제9호
발행연도
2007.1
수록면
1,149 - 1,154 (6page)

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The pharmacokinetics in rats of gentiopicroside (GPS) from orally administered decoctions of Radix Gentianae (DRG) and Gentiana macrophlla (DGM) were compared with that of GPS alone administered at 150 mg/kg orally and 30 mg/kg intravenously. The metabolic profile of GPS after intravenous injection could be fitted to two-compartment model whereas oral administration decoctions DRG or DGM, or GPS alone, could all be fitted to a one-compartment model. After oral administration of GPS alone, GPS was absorbed quickly and reached a maximum plasma concentration ($C_{max}$) value, 5.78 ${\pm}$ 2.24 ${\mu}g/mL$ within 0.75 ${\pm}$ 0.62 h. The plasma level of GPS declined with a $T_{1/2ke}$, 3.35 ${\pm}$ 0.76 h. After oral administration of decoctions DRG and DGM, GPS was absorbed and reached significantly higher maximum concentrations of 10.53 ${\pm}$ 3.20 ${\mu}g/mL$ (p < 0.01) and 7.43 ${\pm}$ 1.64 ${\mu}g/mL$ (p < 0.05) at later time points 1.60 ${\pm}$ 0.76 (p < 0.01) and 2.08${\pm}$0.74 h (p < 0.05), for DRG and DGM respectively, compared with oral GPS alone. Significantly larger AUC values were found for decoctions of GPS (83.49 ${\pm}$ 20.8 ${\mu}g{\cdot}h/mL$ for DRG and 59.43 ${\pm}$ 12.9 ${\mu}g{\cdot}h/mL$ for DGM) compared with oral GPS alone (32.67 ${\pm}$ 12.9 ${\mu}g{\cdot}h/mL$. The results demonstrate that the bioavailability of GPS was markedly improved when administered as a decoction than as purified GPS. The decoction from Radix Gentianae provided 2.5 times better bioavailability and that from Gentiana macrophlla 1.8 times higher. The study confirms the importance of careful pharmacokinetic analysis in the characterization of herbal medicines when applied for future clinical applications.

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