The first beta-lactamase enzyme was identified against penicillin and after that various beta-lactamases have emerged due to intensive use of antibiotics, and, therefore, they need to be classified.1 Beta-lactamases are also divided into four groups according to their biochemical properties and substr...
The AmpC β-lactamase-producer isolates were studied by employing cefoxitin disk diffusion test, AmpC induction test, AmpC cefoxitin-EDTA test, and boronic acid disk test. Our results showed that of 46 (18.4%) cefoxitin-insensitive E. coli isolates, 10 (21.7%) were positive for AmpC β-...
In the recent years, multidrug resistant (MDR) neonatal septicemia-causing Enterobacterales has been dramatically increased due to the extended-spectrum beta-lactamases (ESBLs) and AmpC enzymes. This study aimed to assess the antibiotic resistance pattern, prevalence of ESBLs/AmpC beta-lactamase genes...
et al. Antimicrobial activity of cefepime-tazobactam combination against extended spectrum beta-lactamase and/or AmpC beta-lactamase- producing gram-negative bacilli. BMC Infect Dis 24, 434 (2024). https://doi.org/10.1186/s12879-024-09296-y Download citation Received24 November 2023 Accepted05 ...
Extended-spectrum beta-lactamase-producing Shiga toxin gene (stx1)-positive Escherichia coli O91:H14 carrying blaCTX-M-15 on an IncI1-ST31 plasmid isolated from a human patient in Germany Int J Med Microbiol, 305 (2015), pp. 404-407 View PDFView articleView in ScopusGoogle Scholar [25]...
Beta-lactam resistance mechanisms in gram-negative bacteria Microbiol. Sci., 3 (11) (1986), pp. 334-339 View in ScopusGoogle Scholar [51] F. Lindberg, S. Normark Common mechanism of ampC beta-lactamase induction in enterobacteria: regulation of the cloned Enterobacter cloacae P99 beta-lactama...
They were then screened for the p-lactamase production, statistical analysis was done by using Chi square test. A total of 596 MDR isolates, 503 (84.39%)were beta- lactamase producers from which 306 (51.34%) were AmpC producers, followed by 118 (31.54%) ESBL producers and 115 (19.29%) ...
Negri M C,Baquero F.In vitro selective concentrations of cefepime and ceftazidime for AmpC blactamase hyperproducer Enterobacter cloacae variants.Clinical Microbiology and Infection. 1998Negri MC, Baquero F. In vitro selective concentrations of cefepime and ceftazidime for AmpC beta-lactamase hyper...
The present study was conducted to investigate prevalence and molecular epidemiology of plasmid mediated AmpC beta-lactamase in ESBL co-producing Escherichia coli (E.coli) and Klebsiella spp. (Klebsiella pneumoniae and Klebsiella oxytoca) clinical isolates in northeast of Iran. Methods A total of 602...
Vitek-2 compact is found to be rapid and reliable method to identify Betalactamase and their co-existence. It is better than conventional method.Bora, ArchanaKhatri, PKSolanki, ArunaParihar, RSChandora, AK