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DHARA is an online index of articles on Ayurveda published in research journals worldwide.
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Planta Medica
2001
Dec
;
(9)
:0
Diarylheptanoids with free radical scavenging and hepatoprotective activity in vitro from Curcuma longa.
Song EK
,
Cho H
,
Kim JS
,
Kim NY
,
An NH
,
Kim JA
,
Lee SH
,
Kim YC
Abstract
Assay-guided fractionation of the EtOAc soluble fraction of the rhizomes of Curcuma longa furnished three DPPH free radical scavenging diarylheptanoids, curcumin (1), demethoxycurcumin (2), and bisdemethoxycurcumin (3). Compounds 1-3 showed the DPPH radical scavenging effects with IC(50) values of 2.8, 39.2, 308.7 microM, respectively. L-Ascorbic acid and resveratrol as positive controls exhibited IC(50) values of 22.5 and 25.0 microM, respectively. Compounds 1-3 showed significant hepatoprotective effects on tacrine-induced cytotoxicity in human liver-derived Hep G2 cells. The EC(50) values of 1-3 are 86.9, 70.7, and 50.2 microM, respectively. Silybin (EC(50) = 69.0 microM) and silychristin (EC(50) = 82.7 microM) were used as positive controls.
DHARA ID:
D046635
Pubmed ID:
11745031
Access to Full Paper Not Available
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