نتایج جستجو برای: subinhibitory concentrations

تعداد نتایج: 306940  

Journal: :Journal of virology 2011
Guillaume Lafforgue Fernando Martínez Josep Sardanyés Francisca de la Iglesia Qi-Wen Niu Shih-Shun Lin Ricard V Solé Nam-Hai Chua José-Antonio Daròs Santiago F Elena

A biotechnological application of artificial microRNAs (amiRs) is the generation of plants that are resistant to virus infection. This resistance has proven to be highly effective and sequence specific. However, before these transgenic plants can be deployed in the field, it is important to evaluate the likelihood of the emergence of resistance-breaking mutants. Two issues are of particular int...

Journal: :Antimicrobial agents and chemotherapy 2004
Jens Gieffers Jan Rupp Andreas Gebert Werner Solbach Matthias Klinger

Persistent growth forms of Chlamydia pneumoniae have been associated with chronic infections in vivo. We investigated the effects of first-line therapeutics on the induction of persistence by monitoring recoverable organisms, gene expression of membrane proteins, and morphology. We found that all of the antibiotics tested have distinct and subinhibitory concentrations at which they induce persi...

Journal: :The Journal of antimicrobial chemotherapy 2000
S Bosne-David V Barros S C Verde C Portugal H L David

Subinhibitory concentrations of bacitracin, vancomycin and other inhibitors of cell wall synthesis reversed to varying extents the intrinsic resistance of Mycobacterium tuberculosis to clarithromycin. Ethambutol reversed clarithromycin resistance in all of the M. tuberculosis strains studied regardless of their susceptibility to this drug.

Journal: :Antimicrobial agents and chemotherapy 1986
E M Veringa J Verhoef

Incubation in subinhibitory concentrations of clindamycin enhanced the uptake of protein A-rich Staphylococcus aureus strains by polymorphonuclear leukocytes. This enhancement of uptake appeared to be due, in part, to a reduction in the amount of protein A at the bacterial cell surface by clindamycin.

Journal: :Antimicrobial agents and chemotherapy 2000
T A Davies B E Dewasse M R Jacobs P C Appelbaum

The ability of 50 sequential subcultures in subinhibitory concentrations of telithromycin (HMR 3647), azithromycin, clarithromycin, erythromycin A, roxithromycin, clindamycin, and pristinamycin to select for resistance was studied in five macrolide-susceptible and six macrolide-resistant pneumococci containing mefE or ermB. Telithromycin selected for resistance less often than the other drugs.

Journal: :Frontiers in microbiology 2016
Joaquín V. Martínez-Suárez Sagrario Ortiz Victoria López-Alonso

The persistence of certain strains of Listeria monocytogenes, even after the food processing environment has been cleaned and disinfected, suggests that this may be related to phenomena that reduce the concentration of the disinfectants to subinhibitory levels. This includes (i) the existence of environmental niches or reservoirs that are difficult for disinfectants to reach, (ii) microorganism...

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