title: In vitro elution of moxifloxacin and fusidic acid by a synthetic crystallic semihydrate form of calcium sulphate (Stimulan).
abstract: Stimulan was evaluated in vitro as a biodegradable carrier for local delivery of moxifloxacin and fusidic acid. Moxifloxacin or fusidic acid was mixed with calcium sulphate at a ratio of 95:5 to prepare five replicas per antibiotic. In vitro elution was estimated daily using a high-performance liquid chromatography (HPLC) system. Elution of moxifloxacin lasted for 31 days. Eluted concentrations reached their peak on Day 13 (mean level 745 microg/mL); the lowest eluted concentration was detected on Day 30 (mean level 367 microg/mL). Elution of fusidic acid lasted for 14 days. Eluted concentrations reached their peak on Day 6 (mean value 249.5 microg/mL); the lowest eluted concentration was detected on Day 13 (mean value 10.9 microg/mL). The presented results revealed that Stimulan may allow adequate in vitro elution of moxifloxacin and fusidic acid. The latter results support the application of this system in experimental models of osteomyelitis.
authors.affiliation: 4th Department of Internal Medicine, University of Athens, Medical School, Athens, Greece.
authors.forename: Periklis
authors.initials: P
authors.lastname: Panagopoulos
authors.forename: Thomas
authors.initials: T
authors.lastname: Tsaganos
authors.forename: Diamantis
authors.initials: D
authors.lastname: Plachouras
authors.forename: Dionyssia-Pinelopi
authors.initials: DP
authors.lastname: Carrer
authors.forename: Antonios
authors.initials: A
authors.lastname: Papadopoulos
authors.forename: Helen
authors.initials: H
authors.lastname: Giamarellou
authors.forename: Kyriaki
authors.initials: K
authors.lastname: Kanellakopoulou
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry*; D019540:Area Under Curve; D001372:Aza Compounds / Q000737:chemistry*; D001672:Biocompatible Materials / Q000737:chemistry*; D018786:Bone Substitutes / Q000737:chemistry*; D002133:Calcium Sulfate / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D016503:Drug Delivery Systems; D024841:Fluoroquinolones; D005672:Fusidic Acid / Q000737:chemistry*; D000077266:Moxifloxacin; D011804:Quinolines / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000900:Anti-Bacterial Agents; D001372:Aza Compounds; D001672:Biocompatible Materials; D018786:Bone Substitutes; D024841:Fluoroquinolones; D011804:Quinolines; D005672:Fusidic Acid; D000077266:Moxifloxacin; D002133:Calcium Sulfate