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Geum Soog Kim,Tae Sook Jeong,Young Ock Kim,Nam In Baek,Seon Woo Cha,Jong Won Lee,Kyung Sik Song 한국응용생명화학회 2010 Journal of Applied Biological Chemistry (J. Appl. Vol.53 No.4
In the process of screening for anti-human acyl-CoA:cholesterol acyltransferase (hACAT) agents from plant resources, we found that the 80% methanolic extract of Rhus chinensis (R. chinensis) exhibited significant antioxidative and hACAT activities in rats.
Human Acyl-CoACholesterol Acyltransferase-inhibiting Dammarane Triterpenes from Rhus chinensis
( Geum Soog Kim ),( Tae Sook Jeong ),( Young Ock Kim ),( Nam In Baek ),( Seon Woo Cha ),( Jong Won Lee ),( Kyung Sik Song ) 한국응용생명화학회 2010 Applied Biological Chemistry (Appl Biol Chem) Vol.53 No.4
In the process of screening for anti-human acyl-CoA:cholesterol acyltransferase (hACAT) agents from plant resources, we found that the 80% methanolic extract of Rhus chinensis (R. chinensis) exhibited significant antioxidative and hACAT activities in rats. Two compounds were isolated as active principles from the ethyl acetate soluble fraction of the branches of R. chinensis. The structures of compounds 1 and 2 were determined as hydroxydammarenone and semialactone, respectively, by means of MS and NMR spectroscopic analysis. Compound 1 has been isolated from this plant for the first time. Compounds 1 and 2 showed inhibitory activities on both human ACAT1 with IC50 values of 12.4, and 79.1 μM and on human ACAT2 with IC(50) values of 30.5 and 76.9 μM, respectively. These results suggested that R. chinensis containing dammarane triterpenes 1 and 2 might be effective in the prevention and treatment of hypercholesterolemia or atherosclerosis via inhibitory effect on hACAT.