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Combined effects of smoking, anti-EBNA antibodies, and HLA-DRB1*1501 on multiple sclerosis risk
Vise andre og tillknytning
2010 (engelsk)Inngår i: Neurology, ISSN 0028-3878, E-ISSN 1526-632X, Vol. 74, nr 17, s. 1365-1371Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Objective: To examine the interplay between smoking, serum antibody titers to the Epstein-Barr virus nuclear antigens (anti-EBNA), and HLA-DR15 on multiple sclerosis (MS) risk. Methods: Individual and pooled analyses were conducted among 442 cases and 865 controls from 3 MS case-control studies-a nested case-control study in the Nurses' Health Study/Nurses' Health Study II, the Tasmanian MS Study, and a Swedish MS Study. Conditional logistic regression models were used to calculate odds ratios (ORs) and 95% CIs for the association between smoking, anti-EBNA titers, HLA-DR15, and MS risk. Study estimates were pooled using inverse variance weights to determine a combined effect and p value. Results: Among MS cases, anti-EBNA titers were significantly higher in ever smokers compared to never smokers. The increased risk of MS associated with high anti-EBNA Ab titers was stronger among ever smokers (OR = 3.9, 95% CI = 2.7-5.7) compared to never smokers (OR = 1.8, 95% CI = 1.4-2.3; p for interaction = 0.001). The increased risk of MS associated with a history of smoking was no longer evident after adjustment for anti-EBNA Ab titers. No modification or confounding by HLA-DR15 was observed. The increased risk of MS associated with ever smoking was only observed among those who had high anti-EBNA titers (OR = 1.7, 95% CI = 1.1-2.6). Conclusions: Smoking appears to enhance the association between high anti-EBNA titer and increased multiple sclerosis (MS) risk. The association between HLA-DR15 and MS risk is independent of smoking. Further work is necessary to elucidate possible biologic mechanisms to explain this finding

sted, utgiver, år, opplag, sider
2010. Vol. 74, nr 17, s. 1365-1371
Emneord [en]
epstein-barr-virus, membrane-protein 1, hodgkin lymphoma, cigarette-smoking, immune-response, jnk pathway, t-cells, activation, infection, exposure
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-42417DOI: 10.1212/WNL.0b013e3181dad57eISI: 000277057200007PubMedID: 20375311OAI: oai:DiVA.org:umu-42417DiVA, id: diva2:409214
Tilgjengelig fra: 2011-04-07 Laget: 2011-04-07 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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