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标题：The Combination Effect of Korean Red Ginseng Saponins with Kanamycin and Cefotaxime against Methicillin-Resistant Staphylococcus aureus
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作者：Woo Sang Sung ; Dong Gun Lee
期刊名称：Biological and Pharmaceutical Bulletin
印刷版ISSN：0918-6158
电子版ISSN：1347-5215
出版年度：2008
卷号：31
期号：8
页码：1614-1617
DOI：10.1248/bpb.31.1614
出版社：The Pharmaceutical Society of Japan
摘要：Korean red ginseng saponins (ginsenosides) have been reported as having various biological properties, but the combinational effects with commercial antibiotics and the mode of action of ginsenosides remain mostly unknown. In this study, saponins were isolated from Korean red ginseng, and the antibacterial effects of ginsenosides were investigated. Ginsenosides showed antibacterial activities toward pathogenic Gram-positive and Gram-negative bacteria. To elucidate the antibacterial mode of action of ginsenosides, we measured the release of the fluorescent marker calcein from negatively charged PC/PG (1 : 1, w/w) liposomes, which mimic bacterial membranes. The results suggest that ginsenosides may exert antibacterial activity by disrupting the cell membrane. To estimate the general combination effects of ginsenosides and commercial antibiotics, such as kanamycin and cefotaxime, on antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) strains that were clinically isolated from an infected patient, the fraction inhibitory concentration (FIC) indexes were determined by a checkerboard study. The FIC indexes showed synergistic or additive effects between the ginsenosides and antibiotics tested.
关键词：Korean red ginseng;ginsenoside;antibacterial activity;combination effect;methicillin-resistant Staphylococcus aureus