Low density lipoprotein (LDL)-antioxidant flavonoids from roots of Sophora flavescens = 고삼으로부터 분리한 플라보노이드의 LDL-항산화 활성

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Title
Low density lipoprotein (LDL)-antioxidant flavonoids from roots of Sophora flavescens = 고삼으로부터 분리한 플라보노이드의 LDL-항산화 활성
Author(s)
Tae Sook JeongYoung Bae Ryu; H Y Kim; M J Curtis-Long; S J An; J H Lee; Woo Song Lee; K H Park
Bibliographic Citation
Biological & Pharmaceutical Bulletin, vol. 31, no. 11, pp. 2097-2102
Publication Year
2008
Abstract
Oxidation of low density lipoprotein (LDL) is strongly implicated as a key process in the onset of atherosclerosis. In this study, nine alkylated (C 10-C5) flavonoids from Sophora flavescens were examined for their inhibitory effects on copper-induced LDL oxidation. of the flavonoids tested, sophoraflavanone G (1), kurarinone (2), kurarinol (3), norkurarinol (4), and kuraridin (9) inhibited the generation of thiobarbituric acid reactive substances (TBARS) with IC50s of 7.9, 14.5, 22.0, 26.9, and 17.5 μM, respectively. The most potent inhibitor, compound 1, also demonstrated significant activities in complementary in vitro investigations, such as lag time (130 min at 5 μM), relative electrophoretic mobility (REM) of ox-LDL (80% inhibition at 20 μM), and fragmentation of apoB-100 (inhibition of 71% at 20 μM). Analysis of the structures of these compounds reveals that a resorcinol moiety in the B-ring is strongly correlated with protection of LDL-oxidation.
Keyword
Sophoraflavanone GLow density lipoprotein oxidationResorcinolSophora flavescensKurarinone
ISSN
0918-6158
Publisher
Pharmaceutical Soc Japan
DOI
http://dx.doi.org/10.1248/bpb.31.2097
Type
Article
Appears in Collections:
Division of Biomedical Research > Microbiome Convergence Research Center > 1. Journal Articles
Jeonbuk Branch Institute > Functional Biomaterial Research Center > 1. Journal Articles
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