Abstract |
Because daptomycin is active against Gram-positive cocci, it may be useful in the treatment and prevention of bone and joint infections when incorporated into polymethylmethacrylate ( PMMA). The release kinetics of daptomycin from PMMA were studied in a continuous flow chamber designed to simulate in vivo conditions. Three-millimeter beads containing 2.5%, 7.5%, and 15.0% daptomycin (weight daptomycin per weight PMMA) were individually placed in a chamber with 1 mL Krebs Ringer buffer flowing at 1 mL/hour. The majority of daptomycin was released in the first 24 hours. The mean peak concentrations were 13.4, 62.3, and 146.7 microg/mL; the mean AUC0-infinity were 30, 272, and 1204 h x microg/mL; and the mean percentages of daptomycin released were 6%, 18%, and 42% for the beads containing 2.5%, 7.5%, and 15.0% daptomycin, respectively. Daptomycin is released from PMMA in a continuous flow chamber at a rate similar to that previously determined by our laboratory for vancomycin.
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Authors | Emily W Hall, Mark S Rouse, David J Jacofsky, Douglas R Osmon, Arlen D Hanssen, James M Steckelberg, Robin Patel |
Journal | Diagnostic microbiology and infectious disease
(Diagn Microbiol Infect Dis)
Vol. 50
Issue 4
Pg. 261-5
(Dec 2004)
ISSN: 0732-8893 [Print] United States |
PMID | 15582299
(Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Anti-Bacterial Agents
- Bone Cements
- Drug Carriers
- Vancomycin
- Polymethyl Methacrylate
- Daptomycin
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Topics |
- Anti-Bacterial Agents
(chemistry)
- Bone Cements
(chemistry)
- Daptomycin
(chemistry)
- Diffusion
- Drug Carriers
(chemistry)
- Kinetics
- Polymethyl Methacrylate
(chemistry)
- Vancomycin
(chemistry)
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