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- W1915661841 abstract "Background: The application of an exogenous pulmonary surfactant as a carrier for intratracheally administered antimicrobials represents a promising therapeutic modality that is still on its way to clinical practice. Owing to its ability to decrease surface tension, exogenous surfactant may enhance delivery of antibiotics into foci of pulmonary infection, thus increasing efficiency and safety of topical antimicrobial therapy in bacterial lung diseases. Objectives: To assess potential interactions between exogenous surfactant and amikacin in vitro, and to study the effects of their joint intratracheal instillation in rats with acute pneumonia caused by Pseudomonas aeruginosa. Methods: The antibacterial and surface-active properties of amikacin (Amicil, Kievmedpreparat, Ukraine), porcine pulmonary surfactant (Suzacrin, Docpharm, Ukraine), and their combination were studied in vitro using standard microbiologic procedures and modified Pattle method (estimation of bubble diameter). Similar methods were utilized to study bacterial contamination of lungs and blood, and to assess the surface activity of bronchoalveolar wash (BAW) in 119 Wistar rats, including infected (intratracheal introduction of P. aeruginosa ATCC 27853) and noninfected animals. Histopathologic findings, differential leukocyte counts, and oxygenation parameters were recorded. Results: Antibacterial and surface-active properties of the surfactant and amikacin remained unimpaired in vitro. In rats anti-pseudomonal and anti-inflammatory effects of the surfactant-amikacin mixture were more pronounced (p<0.05) than effects of pure amikacin as evidenced by recorded rates of bacterial growth and granulocytic response. The combined therapy considerably restricted tissue damage and mitigated reduction of BAW surface activity. Conclusion: The advantages of the joint surfactant-amikacin therapy of Pseudomonas-induced pneumonia may suggest further clinical trials." @default.
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- W1915661841 date "2015-08-01" @default.
- W1915661841 modified "2023-09-27" @default.
- W1915661841 title "Joint Intratracheal Surfactant-Antibacterial Therapy in Experimental Pseudomonas-Induced Pneumonia" @default.
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- W1915661841 doi "https://doi.org/10.1089/jamp.2014.1161" @default.
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