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

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 …

Background: AmpC β-lactamases are often plasmid mediated that hydrolyze all b-lactam
antibiotics except cefepime and carbapenems. Aim of the study: We aimed to evaluate the …

Purpose: Amp C beta-lactamase are Ambler class C enzymes that confer resistance to
extended spectrum cephalosporins and are not inhibited by beta-lactamase inhibitors. Their …

Plasmid-mediated AmpC beta-lactamases (pAmpCs) are cephalosporinases that hydrolyze
cephamycins as well as other extended-spectrum cephalosporins and are poorly inhibited …

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 …

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 …

One of the mechanisms of Klebsiella pneumoniae and Escherichia coli resistance to β-
lactam antibiotics is the production of β-lactamase enzymes. Among these are the AmpC β …

Objective: The aim of the study was to investigate the occurrence of AmpC-type β-lactamase
producers isolated from two hospitals in Tripoli, Libya. Methods: All clinical isolates (76 K …

AmpC β-lactamases are cephalosporinases that hydrolyze cephamycins as well as other
extended-spectrum cephalosporins and are poorly inhibited by clavulanic acid. Although …