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논문 기본 정보

자료유형
학술저널
저자정보
Paek, Kyoung-Sook (Biotech Research Institute, LG Chem Research Park, LG Chemical Ltd) Ahn, Mi-Jeong (Biotech Research Institute, LG Chem Research Park, LG Chemical Ltd) Kim, Mu-Yong (Biotech Research Institute, LG Chem Research Park, LG Chemical Ltd) Kim, In-Chull (Biotech Research Institute, LG Chem Research Park, LG Chemical Ltd) Kwak, Jin-Hwan (Biotech Research Institute, LG Chem Research Park, LG Chemical Ltd)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제19권 제2호
발행연도
1996.1
수록면
143 - 147 (5page)

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LB20304 is a novel fluoroquinolone that exhibits a potent broad spectrum antibacterial activity against both gram-positve and gram-negative bacteria. The MICs (Minimal Inhibitory Concentration) of LB20304 were determined against both gram-positve and gram-negative bacteria under various conditions including several media, pHs, and inoculum concentrations. The in vitro activity of LB20304 was not significantly affected by the changes in testing conditions such as components of media and inoculum concentrations, but it was slightly reduced by acid condition. The MICs and MBCs (Minimal Bactericidal Concentration) of LB20304 against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa were hardly affected by the presence of 50 % human serum, mouse serum, guinea pig serum or horse serum, and the MBCs were equal to or at most four-times higher than the MiCs. The activities of LB20304 were decreased by the presence of high concentraion of $Mg^{++}$ or human urine (pH, 5.5) in the test media. The frequencies of mutants resistant to LB20304 were similar to or lower than those found in ciprofloxacin and sparfloxacin.

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