High prevalence of Human Herpesvirus 8 in schizophrenic patients |
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Authors: | Neila Hannachi Yousri El Kissi Samar Samoud Jaafar Nakhli Leila Letaief Samia Gaabout Bechir Ben Hadj Ali Jalel Boukadida |
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Affiliation: | 1. Department of Microbiology and Immunology, Farhat Hached University Hospital, Ibn El Jazzar Street, Sousse 4000, Tunisia;2. Research Unit (UR02SP13), Farhat Hached University Hospital, Ibn El Jazzar Street, Sousse 4000, Tunisia;3. Department of Psychiatry, Farhat Hached University Hospital, Ibn El Jazzar Street, Sousse 4000, Tunisia |
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Abstract: | Many studies have reported an association between Herpes family viruses and an increased risk of schizophrenia, but the role of Human Herpesvirus 8 (HHV8) has never been investigated. This study aimed to assess HHV8 prevalence in schizophrenic patients as well as the possible association between HHV8 infection and schizophrenia clinical features. We consecutively enrolled 108 patients meeting fourth edition of Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria of schizophrenia and 108 age and sex matched controls. Data about a number of demographic characteristics and potential HHV8 risk factors of infection were collected. Standardized psychopathology measures, disease severity and functioning level were obtained using Positive and Negative Syndrome Scale (PANSS), Brief Psychiatric Rating Scale (BPRS), Scale for the Assessment of Negative Symptoms (SANS), Scale for the Assessment of Positive Symptoms (SAPS), Clinical Global Impressions (CGI) and Global Assessment of functioning (GAF). The presence of anti-HHV8 antibodies was analyzed using an indirect immunofluorescence assay. A higher prevalence of HHV8 infection in schizophrenic patients than in controls was found. Marital status, having children, sexual behavior and risk factors of blood transmission were not associated with HHV8 prevalence. However, among schizophrenic patients, HHV8 prevalence was statically associated with positive symptoms. To our knowledge, this would be the first report of a possible role of HHV8 in the pathogenesis of schizophrenia. To prove this hypothesis, further investigation of HHV8 in schizophrenia with larger samples is needed. |
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Keywords: | HHV8, Human Herpesvirus 8 PANSS, Positive and Negative Syndrome Scale BPRS, Brief Psychiatric Rating Scale SANS, Scale for the Assessment of Negative Symptoms SAPS, Scale for the Assessment of Positive Symptoms CGI, Clinical Global Impressions GAF, Global Assessment of functioning HHVs, Human Herpes viruses HSV 1, Herpes simplex virus type 1 HSV2, Herpes simplex virus type 2 CMV, Cytomegalovirus EBV, Epstein-Barr virus VZV, Varicella-Zoster virus KS, Kaposi sarcoma vIL-6, viral Interleukin-6 hIL-6, Human Interleukin-6 CNS, central nervous System |
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