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Multiple Sclerosis 2007;13:420. A more recent version of this article appeared on April 1, 2007
Correlations between Epstein-Barr virus antibody levels and risk factors for multiple sclerosis in healthy individuals
Department of Epidemiology Research, Statens Serum Institut, 2300
Copenhagen, Denmark
* To whom correspondence should be addressed.
Background Female gender, human leukocyte antigen (HLA) DR2, tobacco smoking and Epstein-Barr virus (EBV) are established risk factors for multiple sclerosis (MS). Their possible interaction however, has been sparsely studied. ObjectivesTo investigate possible associations between EBV antibody levels and a range of other recognized MS risk factors. Design, setting and study populationCross-sectional study undertaken in Denmark based on 517 healthy individuals selected from the Danish population. MethodsWe measured change in mean log (anti-Epstein-Barr viral capsid antigen (VCA) immune globulin G) using linear regression. ResultsAnti-Epstein-Barr VCA immune globulin G levels were positively correlated with female gender and HLA DR2. Furthermore, current smoking and cumulative tobacco consumption were positively associated with EBV antibody levels. ConclusionThe association between Epstein-Barr VCA antibody levels and non-viral MS risk factors support the view that EBV is critically involved in the etiology of MS. These non-viral MS risk factors may be linked with MS risk through EBV-specific immune responses. Key Words: Epstein-Barr virus antibodies, gender, HLA-DR2, multiple sclerosis, tobacco smoking
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