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자료유형
학술저널
저자정보
Quan, Zhe-Jiu (College of Pharmacy, Yeungnam University) Moon, Tae-Chul (College of Pharmacy, Yeungnam University) Yang, Ju-Hye (College of Pharmacy, Yeungnam University) Chang, Hyeun-Wook (College of Pharmacy, Yeungnam University) Park, Young-Hyun (College of Natural Sciences, Soonchunhyang University) Kim, Young-Ha (Research Center, Yuyu Inc.) Lee, Kyung-Hee (Research Center, Yuyu Inc.) Chi, Yeon-Sook (College of Pharmacy, Kangwon National University) Lim, Hyun (College of Pharmacy, Kangwon National University) Kim, Hyoung-Chun (College of Pharmacy, Kangwon National University) Kim, Hyun-Pyo (College of Pharmacy, Kangwon National University)
저널정보
한국응용약물학회 The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology 제14권 제3호
발행연도
2006.1
수록면
160 - 165 (6page)

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Since platelet-activating factor (PAF) is involved in inflammation, allergic response and anaphylactic shock, PAF receptor antagonists may have potential for controlling these disease conditions. The extract of the leaves of Ginkgo biloba having a higher content of terpenoids (12%) with flavonoids (24%) (YY1224) was prepared in order to obtain the increasing PAF antagonistic activity. As expected, YY1224 showed a higher PAF antagonistic binding affinity ($IC_{50}\;=\;0.09\;{\mu}g/ml$) using $[^3H]PAF$ and rabbit platelets as ligand and receptor source, compared with an $IC_{50}$ of $>\;100\;{\mu}g/ml$ by Egb 761, a standardized extract. YY1224 also showed a higher inhibitory activity against PAF-induced platelet aggregation and NO production from lipopolysaccharide-treated RAW 264.7 cells. In addition, it protected PAF-induced death in mice by oral administration at 15 mg/kg. All these results suggest that YY1224 may show favorable effects on PAF-related disorders.

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