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  • Title: Circulating B7-H3(CD276) elevations in cerebrospinal fluid and plasma of children with bacterial meningitis.
    Author: Chen X, Zhang G, Li Y, Feng X, Wan F, Zhang L, Wang J, Zhang X.
    Journal: J Mol Neurosci; 2009 Jan; 37(1):86-94. PubMed ID: 18690554.
    Abstract:
    The objective of this study was to analyze the clinical significance of cerebrospinal fluid (CSF) and plasma concentrations of B7-H3, tumor necrosis factor-alpha (TNF-alpha), gamma interferon (IFN-gamma), and interleukin-17 (IL-17) in bacterial and aseptic meningitis in children. The participants were six children with bacterial meningitis, 16 with aseptic meningitis, and 12 control subjects. All participants were between 2 months and 12 years of age on admission. Cytokines determination was performed by enzyme-linked immunosorbent assay technique. CSF and plasma-circulating B7-H3 were significantly higher in the bacterial meningitis group as compared with the aseptic group (p = 0.001) and the control group (p = 0.000 and p = 0.001 respectively). However, CSF and plasma-circulating B7-H3 in aseptic meningitis were not significantly higher than control group (p = 0.071 and p = 0.72 respectively).CSF and plasma-circulating TNF-alpha were significantly higher in the bacterial meningitis group as compared with the aseptic group (p = 0.004 and p < 0.0001 respectively) and control group (p = 0.004 and p < 0.0001 respectively). Similarly, we did not observe significant elevated TNF-alpha levels in CSF and plasma in aseptic group compared with control group (p = 0.03 and p = 0.12 respectively). IFN-gamma levels in CSF and plasma were undetectable in control group, and we did not find statistical significances in both of CSF and plasma between the elevated IFN-gamma level in bacterial meningitis group and aseptic meningitis group(p = 0.055 and p = 0.095 respectively) CSF and plasma levels of IL-17 were undetectable in all subjects. There were correlations between B7-H3 and TNF-alpha, IFN-gamma (r = 0.875, p = 0.000; r = -0.693, p = 0.000, respectively) in CSF in meningitis subjects. In plasma, levels of B7-H3 in bacterial meningitis on admission correlated positively with TNF-alpha (r = 0.968, p = 0.002), and white blood cell counts (r = 0.973, p = 0.001). Detectable CSF levels of B7-H3, TNF-alpha, and IFN-gamma on admission were not associated significantly with any of CSF characteristics. Additionally, CSF and plasma levels of B7-H3 decreased remarkably after treatment. Altogether, our data indicated that circulating B7-H3 and TNF-alpha levels in the CSF and plasma were useful markers for distinguishing bacterial from aseptic meningitis, and Circulating B7-H3 was demonstrated to be useful in evaluating the intensity of the infectious inflammatory process in the central nervous system in children.
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