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- W2022997112 abstract "Purpose of review Currently, dexamethasone is the only adjuvant of proven benefit in bacterial meningitis. Dexamethasone halves the risk of poor outcome, but only in selected patient groups. New therapies based upon an understanding of the pathophysiology are needed. This article summarizes our knowledge on the pathophysiology of bacterial meningitis with special emphasis on pneumococcal meningitis, the experimentally best characterized subtype. Recent findings Experimental studies made clear that the harmful inflammatory reaction is initiated by the interaction of bacterial products with host pattern recognition receptors (PRRs) such as Toll-like receptors. PRR signalling leads to MyD88-dependent production of proinflammatory cytokines of the interleukin-1 family. Secretion of interleukin-1 family cytokines forms a positive feedback loop that boosts MyD88-dependent production of proinflammatory mediators. As a consequence, great numbers of neutrophils are recruited to the subarachnoid space. Activated neutrophils release many potentially cytotoxic agents including oxidants and matrix metalloproteinases that can cause collateral damage to brain tissue. Additionally to the inflammatory response, direct bacterial cytotoxicity has been identified as a contributor to tissue damage. Summary Promising pathophysiologically targeted approaches for adjunctive therapy of acute bacterial meningitis include limiting the release of toxic bacterial products (e.g. nonbacteriolytic antibiotics) and interfering in the generation of host-derived cytotoxins." @default.
- W2022997112 created "2016-06-24" @default.
- W2022997112 creator A5019993130 @default.
- W2022997112 creator A5059512503 @default.
- W2022997112 creator A5081359784 @default.
- W2022997112 date "2010-06-01" @default.
- W2022997112 modified "2023-10-16" @default.
- W2022997112 title "New understandings on the pathophysiology of bacterial meningitis" @default.
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- W2022997112 doi "https://doi.org/10.1097/qco.0b013e328337f49e" @default.
- W2022997112 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/20216309" @default.
- W2022997112 hasPublicationYear "2010" @default.
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