KMID : 0620720140200030191
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Natural Product Sciences 2014 Volume.20 No. 3 p.191 ~ p.195
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Flavonoid Glycosides as Acetylcholinesterase Inhibitors from the Whole Plants of Persicaria thunbergii
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Kim Se-Young
Park Jun-Young Park Pil-Sung Bang Sang-Ho Lee Kyung-Min Lee Yu-Ra Jang Yong-Hyun Kwon Yong-Soo Heo Moon-Young Kim Myong-Jo Chun Wan-Joo
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Abstract
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The n-BuOH soluble fraction of the whole plant of Persicaria thungergii showed acetylcholinesterase inhibitory activity. Four flavonoid glycosides and a flavonoid were isolated from this fraction, and identified as quercitrin (1), luteolin-4``-O-¥â-D-glucopyranoside (2), quercetin (3), quercetin-3-O-glucuronide (4), and isorahmnetin- 3-O-glucuronid (5), by chromatographed and spectral data, respectively. All isolated compounds were showed acetylcholinesterase inhibitory activity, with IC50 values of 243.1, 10.5, 39.1, 8.2 and 23.2 ¥ìM, respectively.
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KEYWORD
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Persicaria thunbergii, Flavonoids, Acetylcholinesterase inhibitory activity
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