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Kurokawa, Kenji,Hamamoto, Hiroshi,Matsuo, Miki,Nishida, Satoshi,Yamane, Noriko,Lee, Bok Luel,Murakami, Kazuhisa,Maki, Hideki,Sekimizu, Kazuhisa American Society for Microbiology 2009 Antimicrobial Agents and Chemotherapy Vol.53 No.9
<B>ABSTRACT</B><P>The availability of a silkworm larva infection model to evaluate the therapeutic effectiveness of antibiotics was examined. The 50% effective doses (ED50) of d-cycloserine against the <I>Staphylococcus aureus ddlA</I> mutant-mediated killing of larvae were remarkably lower than those against the parental strain-mediated killing of larvae. Changes in MICs and ED50 of other antibiotics were negligible, suggesting that these alterations are d-cycloserine selective. Therefore, this model is useful for selecting desired compounds based on their therapeutic effectiveness during antibiotic development.</P>