Alpha-tocopherol and MRI Outcomes in Multiple Sclerosis - Association and Prediction

作者:Loken Amsrud Kristin I; Myhr Kjell Morten; Bakke Soren J; Beiske Antonie G; Bjerve Kristian S; Bjornara Bard T; Hovdal Harald; Lilleas Finn; Midgard Rune; Pedersen Tom; Benth Jurate Saltyte; Torkildsen Oivind; Wergeland Stig; Holmoy Trygve*
来源:PLos One, 2013, 8(1): e54417.
DOI:10.1371/journal.pone.0054417

摘要

Objective: Alpha-tocopherol is the main vitamin E compound in humans, and has important antioxidative and immunomodulatory properties. The aim of this study was to study alpha-tocopherol concentrations and their relationship to disease activity in Norwegian multiple sclerosis (MS) patients. %26lt;br%26gt;Methods: Prospective cohort study in 88 relapsing-remitting MS (RRMS) patients, originally included in a randomised placebo-controlled trial of omega-3 fatty acids (the OFAMS study), before and during treatment with interferon beta. The patients were followed for two years with repeated 12 magnetic resonance imaging (MRI) scans and nine serum measurements of alpha-tocopherol. %26lt;br%26gt;Results: During interferon beta (IFNB) treatment, each 10 mu mol/L increase in alpha-tocopherol reduced the odds (CI 95%) for simultaneous new T2 lesions by 36.8 (0.5-59.8) %, p = 0.048, and for combined unique activity by 35.4 (1.6-57.7) %, p = 0.042, in a hierarchical regression model. These associations were not significant prior to IFNB treatment, and were not noticeably changed by gender, age, body mass index, HLA-DRB1*15, treatment group, compliance, or the concentrations of 25-hydroxyvitamin D, retinol, neutralising antibodies against IFNB, or the omega-3 fatty acids eicosapentaenoic acid and docosahexaenoic acid. The corresponding odds for having new T1 gadolinium enhancing lesions two months later was reduced by 65.4 (16.5-85.7) %, p = 0.019, and for new T2 lesions by 61.0 (12.4-82.6) %, p = 0.023. %26lt;br%26gt;Conclusion: During treatment with IFNB, increasing serum concentrations of alpha-tocopherol were associated with reduced odds for simultaneous and subsequent MRI disease activity in RRMS patients.

  • 出版日期2013-1-22