beta-lactamase

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Related to b-lactamase: ESBL

beta-lactamase

[¦bād·ə ′lak·tə‚mās]
(microbiology)
A bacterial enzyme that catalyzes the hydrolysis of the lactam ring in some penicillin antibiotics, rendering them ineffective.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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A 1998 survey of extended-spectrum b-lactamases in Enterobacteriaceae in France.
Detection of Resistance Phenotype and Gene of Avian Escherichia coli to b-lactam Antibiotics
KEY WORDS: AmpC b-lactamase detection, Antimicrobial resistance, Multidrug resistant bacteria, Neonatal sepsis.
Detection of AmpC b-lactamase producing bacteria isolated in neonatal sepsis
B-lactamases, especially BRO-1, are found in 67% to 80% of M.
Community-Acquired Moraxella catarrhalis Bacteremic Pneumonia: Two Case Reports and Review of the Literature
The occurrence of bacterial infection had decreased with the discovery of penicillin in 1940 until Staphylococcus aureus began producing B-lactamase, which destroys the penicillin B-lactam core ring (Khan, et al., 2013).
Vancomycin Resistance Among Methicillin Resistant Staphylococcus aureus Isolates from Neonatal Sepsis Attending Intensive Care Unit in Shibin El-Kom Teaching Hospital, Egypt
Keywords: AmpC b-lactamase, Multidrug resistant Klebsiella pneumoniae, Inhibitor-based method.
AmpC beta-lactamases in Klebsiella pneumoniae: An emerging threat to the paediatric patients
Objective: Fast detection of b-lactamase (bla) genes can minimize the spread of antibiotic resistance.
Why cannot a b-lactamase gene be detected using an efficient molecular diagnostic method?
SHV-type extended-spectrum b-lactamase in a Shigella flexneri clinical isolate.
EXTENDED SPECTRUM b- LACTAMASE PRODUCING SHIGELLA FLEXNERI- A CASE REPORT
These data confirm the presence of an extended spectrum b-lactamase (ESBL) producing IncHI2 plasmid in strain A54560 that is capable of con jugative transfer and suggest that the plasmid might have been acquired by residual index strain within the patient by transfer from an unknown donor bacterium.
Drug resistance in Salmonella enterica ser. Typhimurium bloodstream infection, Malawi
Plasmid-mediated carbapenem-hydrolyzing b-lactamase KPC-2 in Klebsiella pneumoniae isolate from Greece.
Molecular epidemiology of carbapenem-resistant Enterobacteriaceae from a North Indian Tertiary Hospital
The reason for this is that many isolates were determined to be b-lactamase negative in spite of their resistance to some of the antibiotics.
Antimicrobial Resistance and Sensitivity among Isolates of Klebsiella pneumoniae from Hospital Patients in Turkey

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