ArticleIntensive care medicine experimental2025
Corticosteroid and antimicrobial therapy in macrolide-resistant pneumococcal pneumonia porcine model.
Article in Intensive care medicine experimental, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- A precision approach to translational research in acute lung injury.American journal of respiratory and critical care medicine · 2026Article
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23 authors.
Funding
Abstract
backgroundStreptococcus pneumoniae, a primary cause of community-acquired pneumonia (CAP), is typically treated with β-lactams and macrolides or quinolones. Corticosteroids are now recommended as adjunctive therapy in severe CAP to improve outcomes. In this prospective randomized animal study, we evaluated the bactericidal efficacy of various antibiotic regimens combined with corticosteroids using a porcine pneumococcal pneumonia model.
resultsIn 30 White-Landrace female pigs, pneumonia was induced by intrabronchial inoculation of macrolide-resistant S. pneumoniae 19A isolate. Animals were randomized to receive saline, ceftriaxone (CRO) with levofloxacin (LVX), CRO with azithromycin (AZM), or combinations of these with methylprednisolone (MP). The primary outcome, S. pneumoniae concentrations in lung tissue after 48 h of treatment, showed that the CRO + LVX, CRO + AZM, CRO + LVX + MP, and CRO + AZM + MP groups were equally effective in reducing bacterial load. However, complete bacterial eradication from lung tissue was achieved only in the CRO + AZM + MP group. Secondary outcomes, including bacterial burden in tracheal aspirates and bronchoalveolar lavage (BAL) samples, showed similar bactericidal activity across all treatment groups. The CRO + AZM + MP group demonstrated the most controlled inflammatory response, achieving baseline levels of inflammation, while other groups exhibited elevated inflammatory markers.
conclusionsDespite using a macrolide-resistant S. pneumoniae isolate, the combination of CRO, AZM, and MP achieves similar or even superior results compared to other antibiotic combinations. This regimen provides both bactericidal and immunomodulatory benefits, suggesting its effectiveness in treating macrolide-resistant S. pneumoniae pneumonia.
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