PMID- 20572074 OWN - NLM STAT- MEDLINE DCOM- 20100923 LR - 20100629 IS - 1096-9071 (Electronic) IS - 0146-6615 (Linking) VI - 82 IP - 8 DP - 2010 Aug TI - Comparison of the levels of human herpesvirus 6 (HHV-6) DNA and cytokines in the cerebrospinal fluid and serum of children with HHV-6 encephalopathy. PG - 1410-5 LID - 10.1002/jmv.21808 [doi] AB - Primary human herpesvirus-6 (HHV-6) infection is a common cause of acute sporadic encephalopathy in Japanese children. Occasionally, HHV-6 is not detected in the cerebrospinal fluid (CSF) of patients with encephalopathy, for example, in those with focal viral encephalitis, such as herpes simplex viral encephalitis. This indicates that HHV-6 encephalopathy is caused by an indirect mechanism, although this is not fully understood. HHV-6 DNA, cytokines (interleukin (IL)-1beta, IL-6, IL-8, IL-10, IL-12 p70, tumor necrosis factor-alpha, interferon-gamma), and matrix metalloproteinase-9 were quantitated in both the CSF and serum of 13 patients with HHV-6 encephalopathy during the acute phase of the disease. HHV-6 DNA was detected in the CSF of seven patients with HHV-6 encephalopathy. The viral DNA concentration was significantly higher in serum than in CSF (mean 1.64 x 10(4) vs. 5.70 x 10(1) copies/ml; P = 0.003). The lack or low level of viral DNA in the CSF samples suggests that direct invasion of the central nervous system by HHV-6 is not the main cause of encephalopathy. Additionally, the IL-10 concentration was significantly higher in serum than in CSF (P < 0.001), whereas there was no significant difference in IL-6 levels between the CSF and serum samples. Interestingly, the IL-8 concentration was significantly higher in CSF than in serum (P = 0.038). The distribution of these cytokines differed between CSF and serum. The high CSF concentration of IL-8 could play an important role in the pathogenesis of encephalopathy. CI - (c) 2010 Wiley-Liss, Inc. FAU - Kawabe, Shinji AU - Kawabe S AD - Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan. FAU - Ito, Yoshinori AU - Ito Y FAU - Ohta, Rieko AU - Ohta R FAU - Sofue, Ayako AU - Sofue A FAU - Gotoh, Kensei AU - Gotoh K FAU - Morishima, Tsuneo AU - Morishima T FAU - Kimura, Hiroshi AU - Kimura H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Med Virol JT - Journal of medical virology JID - 7705876 RN - 0 (Cytokines) RN - 0 (DNA, Viral) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) SB - IM MH - Cerebrospinal Fluid/*immunology/*virology MH - Child, Preschool MH - Cytokines/*cerebrospinal fluid MH - DNA, Viral/blood/cerebrospinal fluid MH - Encephalitis, Viral/*immunology/*virology MH - Female MH - Herpesvirus 6, Human/*isolation & purification MH - Humans MH - Infant MH - Japan MH - Male MH - Matrix Metalloproteinase 9/cerebrospinal fluid MH - Roseolovirus Infections/*immunology/virology MH - Viral Load EDAT- 2010/06/24 06:00 MHDA- 2010/09/24 06:00 CRDT- 2010/06/24 06:00 PHST- 2010/06/24 06:00 [entrez] PHST- 2010/06/24 06:00 [pubmed] PHST- 2010/09/24 06:00 [medline] AID - 10.1002/jmv.21808 [doi] PST - ppublish SO - J Med Virol. 2010 Aug;82(8):1410-5. doi: 10.1002/jmv.21808.