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KMID : 0861120130170030165
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Korean Journal of Oriental Preventive Medicine
2013 Volume.17 No. 3 p.165 ~ p.176
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Simultaneous Determination of Gumiganghwal-tang and Its Anti-atherosclerotic Effect
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Kim Ohn-Soon
Seo Chang-Seob
Shin Hyeun-Kyoo
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Abstract
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Objective : The purpose of this study was to establish the simultaneous analysis for six compounds in Gumiganghwal-tang (GMGHT, Jiuweiqianghuo-tang) and to investigate the anti-atherosclerotic effects of GMGHT in vitro
Methods : The column for separation of six compounds was used Luna C18 column and maintained at 40℃. The mobile phase for gradient elution consisted of two solvent systems, 1.0% acetic acid in water and 1.0% acetic acid in acetonitrile. The analysis was carried out at a flow rate of 1.0 mL/min with pothodiode array (PDA) detection at 254, 280, and 320 nm. The injection volume was 10 μL. The antioxidant activities of GMGHT were evaluated by measuring free radical scavenging activities on 2,2'-Azinobis-3-ethyl-benzothiazoline-6-sulfonic acid (ABTS) and 1-1-diphenyl-2-picrylhydrazyl (DPPH). The inhibitory effects on low-density lipoprotein (LDL) oxidation were evaluated by the formation of thiobarbituric acid relative substances (TBARS), relative electrophoretic mobility (REM), and fragmentation of apolipoprotein B (ApoB)-100.
Results : Calibration curves were acquired with r2 ≥ 0.9998. The contents of liquiritin, ferulic acid, baicalin, baicalein, glycyrrhizin, and wogonin in GMGHT were 1.784, 1.693, 37.899, 0.258, 1.869, and 0.034 mg/g, respectively. The GMGHT showed the radical scavenging activity in a dose-dependent manner. The concentration required for 50% reduction (RC50) against ABTS and DPPH radicals were 72.51 μg/mL and 128.49 μg/mL. Furthermore, GMGHT reduced the oxidation properties of LDL induced by CuSO4.
Conclusion : HPLC-PDA is considered as an available and convenient method for quality control and standardization of GMGH and GMGHT has potentials on anti-atherosclerosis by anti-oxidative effect and suppressive effect on LDL oxidation.
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KEYWORD
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Gumiganghwal-tang (Jiuweiqianghuo-tang), simultaneous analysis, ABTS, DPPH, LDL oxidation inhibition, anti-atherosclerosis
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