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http://dx.doi.org/10.7732/kjpr.2019.32.4.264

Isolation of the Constituent Inhibiting Nitric Oxide formation from Lycopus lucidus in LPS-induced Macrophage Cells  

Park, Hee-Juhn (Department of Pharmaceutical Engineering, Sangji University)
Publication Information
Korean Journal of Plant Resources / v.32, no.4, 2019 , pp. 264-269 More about this Journal
Abstract
This research was performed to identify the anti-inflammatory constituent from the herb of Lycorus lucidus (Lamiaceae). The MeOH extract of this plant material and its two fractions, the lipophilic- ($CHCl_3$ fraction) and the hydrophilic fraction (BuOH fraction), were prepared to test anti-inflammatory activity. For this purpose, the inhibition rate on inducible nitric oxide synthase (iNOS) activity was assessed by determining nitric oxide (NO) formation in lipopolysaccharide (LPS)-induced macrophage 264.7 cells. The $CHCl_3$ fraction that greatly inhibited nitric NO formation was chromatographed to lead the isolation of ursolic acid. Since ursolic acid inhibited NO formation dose dependently in this study, this compound was considered as one of the active constituent responsible for anti-inflammation. However, the activity of rosmarinic acid isolated from the BuOH fraction was weak.
Keywords
Anti-inflammatory; iNOS; Lamiaceae; Lycorus lucidus; Nitric oxide; Ursolic acid;
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Times Cited By KSCI : 1  (Citation Analysis)
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