Use of antistaphylococcal beta-lactams to increase daptomycin activity in eradicating persistent bacteremia due to methicillin-resistant Staphylococcus aureus: role of enhanced daptomycin binding.
basic_science · Level V
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- Record sourced from PubMed, PMID 21690622.
- Also identified by DOI 10.1093/cid/cir340 and PMC identifier 3697476.
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Abstract
We used daptomycin plus antistaphylococcal β-lactams (ASBL) to clear refractory MRSA bacteremia. In vitro studies showed enhanced daptomycin bactericidal activity, increased membrane daptomycin binding, and decrease in positive surface charge induced by ASBLs against daptomycin nonsusceptible MRSA. Addition of ASBLs to daptomycin may be of benefit in refractory MRSA bacteremia. (Although the official designation is "daptomycin nonsusceptiblity," we will use the term "daptomycin-resistance" in this paper for facility of presentation.).
Medical subject headings
- Anti-Bacterial Agents
- Bacteremia
- Daptomycin
- Drug Resistance, Bacterial
- Methicillin-Resistant Staphylococcus aureus
- beta-Lactams