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자료유형
학술저널
저자정보
Baek, Nam-In (Department of Life Sciences, Kyunghee University) Jeon, Seong-Gyu (Department of Genetic Engineering, Division of Life Sciences, Hallym University) Ahn, Eun-Mi (Department of Life Sciences, Kyunghee University) Hahn, Jae-Taek (Department of Life Sciences, Kyunghee University) Bahn, Jae-Hoon (Department of Genetic Engineering, Division of Life Sciences, Hallym University) Jang, Joong-Sik (Department of Genetic Engineering, Division of Life Sciences, Hallym University) Cho, Sung-Woo (Department of Biochemistry, University of Ulsan College of Medicine) Park, Jin-Kyu (Korea Ginseng & Tobacco Research Institute) Choi, Soo-Young (Department of Genetic Engineering, Division of Life Sciences, Hallym University)
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 제23권 제4호
발행연도
2000.1
수록면
344 - 348 (5page)

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80% Aqueous MeOH extracts from the wood of Caesalpinia sappan, which showed remarkable anticonvulsant activity, were fractionated using EtOAc, n-BuOH, and $H_2$O. Among them, the EtOAc fraction significantly inhibited the activities of two GABA degradative enzymes, succinic semialdehyde dehydrogenase (SSADH) and succinic semialdehyde reductase (SSAR). Repeated column chromatographies for the fraction guided by activity test led to the isolation of the two active principal components. Their chemical structures were determined to be sappanchalcone and brazilin based on spectral data. The pure compounds, sappanchalcone (1) and brazilin (2), inactivated the SSAR activities in a dose dependent manner, whereas SSADH was inhibited partially by sappanchalcone and not by brazilin.

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