beta-lactam

(redirected from Betalactam)
Also found in: Medical.
Related to Betalactam: ESBL

be·ta-lac·tam

 (bā′tə-lăk′təm, bē′-)
n.
1. A lactam composed of a four-membered ring, formed by intramolecular condensation of an amino acid in which the amino group is located at the beta position, or any compound containing this group.
2. A beta-lactam antibiotic.

[beta, second (in the series of lactam rings, the first being the simplest) + lactam.]
References in periodicals archive ?
Tenders are invited for civil footings and flooring work of blister packing machine in betalactam building as per boq
MRSA resistance mechanisms include expression of altered penicillin-binding proteins, which have a reduced affinity for betalactam antibiotics.
Amino acid mutations essential to production of an altered PBP 2X conferring high-level betalactam resistance in a clinical isolate of Streptococcus pneumoniae.
New findings in betalactam and metronidazole resistant bacteroides fragilis group.
32) Cephalosporins with identical R1 side chains led to HP in one patient; these R1 side chains can cause hypersensitivity because of the betalactam ring structure, but are also implicated in specificity of immune response to cephalosporins.
intermedius appears to be sensitive to betalactam antibiotics, though some cases of resistance have been reported [13].
Multiple resistance to betalactam antibiotics, azithromycin or moxifloxacin in implant associated bacteria.
7%) patients received B-Lactams and Aminoglycosides in combination 3(5%) received B- Lactams in combination 3(5%) received Glycopeptide and Betalactam in combination 3(5%) received Vancomycin and Benzyl Penicillin 3(5%) received Glycopeptide and Aminoglycosides in combination 32(53.
Betalactam susceptibilities and prevalence of ESBL-producing isolates among more than 5000 European Enterobacteriaceae isolates.