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New Microbiol. 2005 Jul;28(3):199-203.

Detection of human herpesviruses and polyomaviruses DNA in a group of patients with relapsing-remitting multiple sclerosis.

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Department of Public Health Sciences, La Sapienza University, Rome, Italy.


Multiple sclerosis (MS) is an inflammatory disease of the central nervous system whose pathological features consist of white matter plaques of primary demyelinization and loss of oligodendrocytes. Various risk factors have been associated with MS susceptibility. We have focused this study on different viruses. In particular in the present study we used PCR to search for the genomic DNA of HHV-1, HHV-2, HHV-8, BKV and JCV in urine and peripheral blood mononuclear cells (PBMC) samples from 44 relapsing-remitting MS (RRMS) patients. No viral DNA was found in any urine sample, whereas 29.5% of RRMS PBMC samples were positive. It is suggestive that Human herpesviruses (HHV-1 and HHV-8) were constantly present in all positive samples, indicating that viral agents could contribute to create the demyelination plaques and cause MS.

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