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  • Title: Inhibitory effect of ginsenosides from steamed ginseng-leaves and flowers on the LPS-stimulated IL-12 production in bone marrow-derived dendritic cells.
    Author: Tung NH, Quang TH, Son JH, Koo JE, Hong HJ, Koh YS, Song GY, Kim YH.
    Journal: Arch Pharm Res; 2011 Apr; 34(4):681-5. PubMed ID: 21544734.
    Abstract:
    Interleukin-12, a heterodimeric cytokine comprising p40 and p35 subunits, plays an essential role in the regulating the differentiation of Th cells, which establish and maximize the capabilities of the immune system. The aim of present study is to screen the effect of 21 ginsenosides from steamed ginseng-leaves and flowers on IL-12 production in bone marrow-derived dendritic cells induced by lipopolysaccharide. Noticeably, ginsenoside Rg(6) (12) and ginsenoside F(4) (13) exhibited particularly inhibitory effect on LPS-induced IL-12 production with the inhibition values of 80 and 82%; and ginsenoside ST(1) (4), ginsenoside SL(2) (8), ginsenoside SL(3) (9), ginsenoside Rh(3) (14), ginsenoside Rk(2) (15), and ginsenoside Rs(4) (18) showed moderate effects with inhibition rates of 63, 65, 67, 68, 71, 73, and 67%, respectively. These results warrant further studies concerning potential of saponin extracts of steamed ginseng-leaves and flowers for medicinal uses.
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