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Published on: December 9, 2015
Association between human herpesvirus 6 and occurrence of multiple sclerosis among Jordanian patients
1Department of Pharmacology and Physiology, Faculty of Medicine, Mu'tah University, PO Box 7, Mu'tah, Karak 61710, Jordan. dr.ahram@gmail.com
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.
Insights
Human herpesvirus 6 (HHV-6) DNA was not significantly associated with multiple sclerosis (MS) in Jordanian patients. This study found no link between HHV-6 in serum or cerebrospinal fluid and MS prevalence or characteristics.
Area of Science:
- Neuroimmunology
- Virology
- Epidemiology
Background:
- Multiple sclerosis (MS) is an autoimmune disease potentially triggered by infectious agents.
- Human herpesvirus 6 (HHV-6) has been implicated as a possible causative agent in MS.
- Limited research exists on MS and HHV-6 prevalence in Jordan.
Purpose of the Study:
- To investigate the prevalence of HHV-6 in Jordanian MS patients.
- To determine the association between HHV-6 and MS in this population.
- To explore potential links between HHV-6 and MS clinical characteristics.
Main Methods:
- Nested polymerase chain reaction (PCR) was used for enhanced sensitivity.
- HHV-6 DNA was detected in serum and cerebrospinal fluid (CSF) samples.
- 36 MS patients and control individuals were analyzed.
Main Results:
- HHV-6 DNA was detected in 26% of MS patient serum samples, with no significant difference compared to controls.
- No association was found between MS and HHV-6 DNA presence in CSF samples.
- No correlation was identified between HHV-6 and MS in terms of gender, diagnosis type, symptoms, or disease score in Jordanian patients.
Conclusions:
- The study found no apparent association between HHV-6 and MS in the Jordanian patient cohort.
- Genetic polymorphism and geographical distribution of MS and pathogens may influence findings.
- Further research is needed to explore these potential factors.
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