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In vitro efficacy of diclofenac against Listeria monocytogenes

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Authors
Dutta, N. K.; Mazumdar, K.; Baek, M. W.; Kim, D. J.; Na, Y. R.; Park, S. H.; Lee, H. K.; Lee, B. H.; Park, Jae Hak
Issue Date
2008-01-09
Publisher
Springer Verlag
Citation
Eur J Clin Microbiol Infect Dis 27(4):315-319
Abstract
Chemotherapy is often futile in systemic listeriosis, translating to being a peril to public health. There is, thus, an imperative need for novel antilisterial compounds, possibly acting through mechanisms dissimilar to those of existing drugs. The present study describes one such agent—the non-steroidal anti-inflammatory drug (NSAID) diclofenac sodium (Dc). The National Committee for Clinical Laboratory Standards (NCCLS) minimum inhibitory concentration (MIC), mode of action, and two mechanisms of action, i.e., on bacterial DNA and membrane, have been characterized with respect to Dc. The drug showed noteworthy inhibitory action (MIC90 = 50 μg/ml) against Listeria strains, demonstrated cidal (minimum bactericidal concentration [MBC]=100 μg/ml) activity, inhibited listerial DNA synthesis (45.48%; incorporation of [methyl-3H] thymidine), and possessed bacterial membrane-damaging activity (37.33%; BacLight assay). Dc could be used as a lead compound for the synthesis of new, more active agents perhaps devoid of side effects. Further, quantitative structure–activity relationship (QSAR) studies will contribute to a new generation of promising adjuvants to existing antilisterial drugs.
ISSN
0934-9723 (print)
1435-4373 (online)
Language
English
URI
http://hdl.handle.net/10371/7876
DOI
https://doi.org/10.1007/s10096-007-0439-5
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College of Veterinary Medicine (수의과대학)Dept. of Veterinary Medicine (수의학과)Journal Papers (저널논문_수의학과)
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