cephamycins

ceph·a·my·cins

(sef'ă-mī'sins),
A family of β-lactam antibiotics (similar to penicillin and cephalosporins) produced by various Streptomyces species.

ceph·a·my·cins

(sefă-mīsinz)
A family of β-lactam antibiotics (similar to penicillin and cephalosporins) produced by various Streptomyces species.

cephamycins

semisynthetic, β-lactam antibiotics produced by Streptomyces spp.; includes cefoxitin sodium, cefmetazole and cefotetan.
References in periodicals archive ?
3] The lack of inhibition by cephamycins and [beta] lactam/[beta]-lactamase inhibitor combination helps in differentiation between AmpC [beta]-lactamase producer and ESBL producers.
The b-lactam antibiotic including penicillins, cephalosporins, cephamycins, monocyclic lactams and other atypical class refers to a large class of antibiotics containing the b-lactam ring structure.
Resistance to antibiotics, such as such as penicillin, carbapenems and cephamycins, is due to the action of beta-lactamases.
2 These are cephalosporinases which confer resistance to cephamycins, cephalosporins, aztreonam and beta- lactam/beta-lactamases inhibitor combinations like ampicillin-clavulanic acid and pipericillin-tazobactam.
Even though the isolates may show susceptibility to first and second generation cephalosporins, aminoglycosides or cephamycins in vitro, these drugs have no activity against Salmonella sp in vivo (CLSI 2013).
Genes encoding AmpC cephalosporinases (AmpC) may be chromosomal or plasmid-based in origin, whereas genes encoding extended-spectrum [beta]-lactamases (ESBLs) are most often carried on mobile genetic elements, such as plasmids or transposons, and cause resistance to all [beta]-lactams except carbapenems and cephamycins (1-4).
beta]-lactam antibiotics, such as penicillins, cephalosporins and cephamycins, all have a similiar core structure consisting of a [beta] lactam agents including third generation cephalosporins [57-59].
MRSA is also resistant to all other group members of beta-lactam antibiotics including Penicillins, Cephalosporins, and Cephamycins.
2] ESBLs are [beta]-lactamases conferring resistance to 3rd generation Cephalosporins and aztreonam but not to Cephamycins and Carbapenems.