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- W2117888940 abstract "Toll-like receptor–2 (TLR2) mediates host responses to gram-positive bacterial wall components. TLR2 function was investigated in a murine Streptococcus pneumoniae meningitis model in wild-type (wt) and TLR2-deficient (TLR2−/−) mice. TLR2−/− mice showed earlier time of death than wt mice (P<.02). Plasma interleukin-6 levels and bacterial numbers in blood and peripheral organs were similar for both strains. With ceftriaxone therapy, none of the wt but 27% of the TLR2−/− mice died (P<.04). Beyond 3 hours after infection, TLR2−/− mice had higher bacterial loads in brain than did wt mice, as assessed with luciferase-tagged S. pneumoniae by means of a Xenogen-CCD (charge-coupled device) camera. After 24 h, tumor necrosis factor activity was higher in cerebrospinal fluid of TLR2−/− than wt mice (P<.05) and was related to increased blood-brain barrier permeability (Evans blue staining, P<.02). In conclusion, the lack of TLR2 was associated with earlier death from meningitis, which was not due to sepsis but to reduced brain bacterial clearing, followed by increased intrathecal inflammation" @default.
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- W2117888940 date "2002-09-15" @default.
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- W2117888940 title "Toll‐Like Receptor 2–Deficient Mice Are Highly Susceptible to<i>Streptococcus pneumoniae</i>Meningitis because of Reduced Bacterial Clearing and Enhanced Inflammation" @default.
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- W2117888940 doi "https://doi.org/10.1086/342845" @default.
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