Background & objectives: AmpC β-lactamases are Group I cephalosporinases that confer
resistance to a wide variety of β-lactam drugs. Plasmid mediated AmpC β-lactamases has …

Objective: The objective of the study was to observe the antimicrobial resistance of AmpC β-
lactamase producing E. coli. Methods: Six hundred and seventy E. coli were isolated from …

BACKGROUND & OBJECTIVES: Extended spectrum beta-lactamases (ES beta L) are
enzymes produced in some Gram-negative bacilli that mediate resistance to third generation …

BACKGROUND & OBJECTIVES: AmpC beta-lactamases confer resistance to a wide variety
of beta-lactam drugs except for cefepime, cefpirome and carbapenems. They are known to …

The purpose of this study was to simultaneously screen for Extended-spectrum β-
lactamases (ESBL) and AmpC β-lactamases in gram negative clinical isolates from four …

BACKGROUND AND OBJECTIVE: The widespread use of beta-lactam antibiotics has lead
to the development of resistance to this group of antibiotics in bacterial pathogens due to …

Background: AmpC β-lactamase confers resistance to a variety of β-lactam agents, and all
plasmid-mediated AmpC genes are considered clinically significant. The transfer of the …

The aim of the study was to determine the prevalence of AmpC producing E. coli,
Klebsiellapneumoniae and Klebsiellaoxytoca and to evaluate and compare four different …

Background: AmpC type β-lactamases are commonly isolated from extended-spectrum
Cephalosporin-resistant Gram-negative bacteria. Also, resistance appeared in bacterial …

AmpC enzymes can be differentiated from other extended-spectrum β-lactamases by their
ability to hydrolyse cephamycins as well as other extended-spectrum cephalosporins. The …