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EBNA-1 reactivity and HLA DRB1*1501 as statistically independent risk factors for multiple sclerosis: a case-control study
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Objectives and methods The interaction between the two best documented risk factors (human leukocyte antigen [HLA] class II [DRB1*1501 positivity] and Epstein-Barr virus [elevated Epstein-Barr nuclear antigen 1 (EBNA-1) antibody reactivity]) for multiple sclerosis (MS) was studied in a case-control study of biobank samples from 109 MS cases and 212 matched referents. Results Multivariate logistic regression analysis showed that both were statistically significant in both sexes. HLA DRB1*1501-positive referents had higher EBNA-1 reactivity than HLA-negative referents. Less EBNA-1 reactivity was required to increase the MS risk in HLA DRB1*1501-positives than in HLA-negatives. Conclusion We suggest that HLA DRB1*1501-positive individuals have an increased vulnerability to EBV-induced autoimmunity.
Title: EBNA-1 reactivity and HLA DRB1*1501 as statistically independent risk factors for multiple sclerosis: a case-control study
Description:
Objectives and methods The interaction between the two best documented risk factors (human leukocyte antigen [HLA] class II [DRB1*1501 positivity] and Epstein-Barr virus [elevated Epstein-Barr nuclear antigen 1 (EBNA-1) antibody reactivity]) for multiple sclerosis (MS) was studied in a case-control study of biobank samples from 109 MS cases and 212 matched referents.
Results Multivariate logistic regression analysis showed that both were statistically significant in both sexes.
HLA DRB1*1501-positive referents had higher EBNA-1 reactivity than HLA-negative referents.
Less EBNA-1 reactivity was required to increase the MS risk in HLA DRB1*1501-positives than in HLA-negatives.
Conclusion We suggest that HLA DRB1*1501-positive individuals have an increased vulnerability to EBV-induced autoimmunity.
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