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Monoamine Oxidase Inhibitory Components from the Roots of Sophora flavescens

Hwang Ji-Sang    (College of Pharmacy, Chungbuk National University   ); Lee Seon A    (College of Pharmacy, Chungbuk National University   ); Hong Seong Su    (College of Pharmacy, Chungbuk National University   ); Lee Kyong Soon    (College of Pharmacy, Chungbuk National University   ); Lee Myung Koo    (College of Pharmacy, Chungbuk National University, Research Center for Bioresource and Health, Chungbuk National University   ); Hwang Bang Yeon    (College of Pharmacy, Chungbuk National University   ); Ro Jai Seup    (College of Pharmacy, Chungbuk National University  );
  • 초록

    In our search for monoamine oxidase (MAO) inhibitors from natural resources, we found that the methanol extract of the roots of Sophora flavescens showed an inhibitory effect on mouse brain monoamine oxidase (MAO). Bioactivity-guided isolation of the extract yielded two known flavonoids, formononetin (1) and kushenol F (2), as active compounds along with three inactive compounds, oxymatrine (3), trifolirhizin (4), and ${\beta}$ -sitosterol (5). Formononetin (1) and kushenol F (2) showed significant inhibitory effects on MAO in a dose-dependent manner with $IC_{50}$ values of 13.2 and $69.9\;{\mu}M$ , respectively. Formononetin (1) showed a slightly more potent inhibitory effect against MAO-B ( $IC_{50}:\;11.0\;{\mu}M$ ) than MAO-A ( $IC_{50}:\;21.2\;{\mu}M$ ). Kushenol F (2) also preferentially inhibited the MAO-B activity than MAO-A activity with the $IC_{50}$ values of 63.1 and $103.7\;{\mu}M$ , respectively.


  • 주제어

    Sophora flavescens .   Leguminosae .   Formononetin .   Kushenol F .   Monoamine oxidase inhibitor.  

  • 참고문헌 (21)

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  • 이 논문을 인용한 문헌 (1)

    1. 2009. "" 동의생리병리학회지 = Journal of physiology & pathology in Korean Medicine, 23(3): 704~709     

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