Abstract | BACKGROUND: Human herpesvirus-7 (HHV-7) is a β-herpesvirus associated with febrile seizures. No association between HHV-7 and epilepsy has been confirmed. OBJECTIVES: The aim of this study was to investigate the presence of HHV-7 protein (KR4) in brain tissue from patients with drug-resistant epilepsy and to determine whether inflammatory molecules are activated in the presence of HHV-7 infection. STUDY DESIGN: RESULTS AND CONCLUSIONS: The study sample included 201 male subjects. The mean age was 23.9, SD 6.2 years (range 15-45). HS was the pathology in 69 samples (23%). The HHV-7 protein was detected in 27 (9%) of the 305 samples and in none of the 42 controls. The factors associated with HHV-7 infection were HS (11/69), glial scar (8/58), arachnoid cyst (2/21), focal cortical dysplasia (2/31) and vascular malformation (4/52). HHV-7 antigen was distributed mainly in the cytoplasm of astrocyte and oligodendrocyte in HS samples. HHV-7 DNA was detected in 20 of the 63 nitrogen preserved HS samples. The expression of TGF-β was up-regulated in samples that were positive for the HHV-7 protein and was mainly detected in neurons. This finding suggests a possible association between HHV-7 positivity, activation of TGF-β and drug-resistant epilepsy, especially HS, but these data need to be replicated.
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Authors | Jin-Mei Li, Cheng Huang, Bo Yan, Wei Wang, Qiao Zhou, Josemir W Sander, Dong Zhou |
Journal | Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology
(J Clin Virol)
Vol. 61
Issue 3
Pg. 387-92
(Nov 2014)
ISSN: 1873-5967 [Electronic] Netherlands |
PMID | 25282530
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2014 Elsevier B.V. All rights reserved. |
Chemical References |
- Cytokines
- DNA, Viral
- Viral Proteins
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Topics |
- Adolescent
- Adult
- Brain Diseases
(complications, diagnosis)
- Cytokines
(analysis, genetics)
- DNA, Viral
(analysis, genetics)
- Epilepsy
(etiology)
- Herpesvirus 7, Human
(isolation & purification)
- Hippocampus
(pathology)
- Humans
- Immunohistochemistry
- Male
- Middle Aged
- Polymerase Chain Reaction
- Real-Time Polymerase Chain Reaction
- Roseolovirus Infections
(complications, diagnosis)
- Sclerosis
(complications, etiology)
- Viral Proteins
(analysis)
- Young Adult
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