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KMID : 0043320130360080922
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Archives of Pharmacal Research
2013 Volume.36 No. 8 p.922 ~ p.926
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Arginase II inhibitory activity of flavonoid compounds from Scutellaria indica
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Kim Sang-Won
Cuong To Dao
Hung Tran Manh
Ryoo Sung-Woo
Lee Jeong-Hyung
Min Byung-Sun
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Abstract
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Arginase II has recently reported as a novel therapeutic target for the treatment of cardiovascular diseases such as atherosclerosis. In the course of screening plants used in natural medicines as arginase II inhibitory activity, a methanol extract of Scutellaria indica showed significant inhibitory effect. Further fractionation and repeated column chromatography led to the isolation of a new flavan-type (1), and seven known compounds (2?8). The chemical structures of isolated compounds were elucidated based on extensive 1D and 2D NMR spectroscopic data. The isolates 1?8 were investigated in vitro for their arginase II inhibitory activity using enzyme solution prepared from kidney of anesthetized C57BL/6 mice. Compounds 3 and 5 significantly inhibited arginase II activity with IC50 values of 25.1 and 11.6 μM, respectively, whereas the other compounds were apparently inactive.
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KEYWORD
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Scutellaria indica, Labiatae, Flavonoid, Arginase II inhibitory activity
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