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Association between human herpesvirus 6 and occurrence of multiple sclerosis among Jordanian patients

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Ahram M, El-Omar A, Baho Y, Lubad MA. Association between human herpesvirus 6 and occurrence of multiple sclerosis among Jordanian patients.

Acta Neurol Scand 2009: 120: 430–435.

© 2009 The Authors Journal compilation © 2009 Blackwell Munksgaard. Objectives – 

Multiple sclerosis (MS) is hypothesized to be caused by an infectious agent that initiates an autoimmune reaction. Among the infectious agents linked to MS is human herpesvirus 6 (HHV-6). Due to the high occurrence of MS among Jordanian population and the deficiency of MS studies in Jordan, the prevalence of HHV-6 in sera and cerebrospinal fluids (CSFs) of 36 MS patients was investigated. Materials and methods – 

To increase the sensitivity of detection, nested polymerase chain reaction was utilized. Results – 

Although we were able to detect HHV-6 DNA in serum samples of 26% MS patients, no significant difference was found when compared to control individuals. In addition, lack of association between MS and presence of viral DNA in CSF samples was observed. Even within the analyzed MS patient population, an association of HHV-6 and MS in terms of gender, type of diagnosis, symptoms and disease score was not identified among Jordanian patients. Conclusions – 

Although these results indicate lack of apparent association between HHV-6 to MS among Jordanian patients, heterogeneity related to genetic polymorphism as well as geographical distribution of the disease and of pathogens may be of significance.

Keywords: human herpesvirus 6; multiple sclerosis; nested PCR

Document Type: Research Article


Affiliations: 1: Mu'tah University, Faculty of Medicine, Mu'tah, Karak, Jordan 2: Al-Bashir Hospital, Al-Ashrafiyya, Amman, Jordan 3: University Hospital, Jordan University, Amman, Jordan

Publication date: 2009-12-01

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