• Abuse and revictimization in adulthood in multiple sclerosis: a cross-sectional study during pregnancy 

      Eid, Karine; Torkildsen, Øivind; Aarseth, Jan Harald; Celius, Elisabeth Gulowsen; Cortese, Marianna; Holmøy, Trygve; Kapali, Akash; Myhr, Kjell-Morten; Torkildsen, Cecilie Fredvik; Wergeland, Stig; Gilhus, Nils Erik; Bjørk, Marte-Helene (Journal article; Peer reviewed, 2022)
      Background: Knowledge concerning exposure to abuse in adulthood and in pregnancy in people with multiple sclerosis (MS) is sparse. Objective: To determine the occurrence of adult abuse and abuse in relation to pregnancy ...
    • Alpha-tocopherol and MRI outcomes in multiple sclerosis - association and prediction 

      Løken-Amsrud, Kristin Ingeleiv; Myhr, Kjell-Morten; Bakke, Søren Jacob; Beiske, Antonie Giæver; Bjerve, Kristian S; Bjørnarå, Bård T.; Hovdal, Harald Olav; Lilleås, Finn; Midgard, Rune; Pedersen, Tom; Saltyte Benth, Jurate; Torkildsen, Øivind; Wergeland, Stig; Holmøy, Trygve (Peer reviewed; Journal article, 2013-01-22)
      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 ...
    • Association of adverse childhood experiences with the development of multiple sclerosis 

      Eid, Karine; Torkildsen, Øivind; Aarseth, Jan Harald; Aalstad, Mari; Bhan, Alok; Celius, Elisabeth Gulowsen; Cortese, Marianna; Daltveit, Anne Kjersti Nesje; Holmøy, Trygve; Myhr, Kjell-Morten; Riise, Trond; Schuler, Stephan; Torkildsen, Cecilie Fredvik; Wergeland, Stig; Gilhus, Nils Erik; Bjørk, Marte-Helene (Journal article; Peer reviewed, 2022)
      Objective To study whether exposure to childhood emotional, sexual or physical abuse is associated with subsequent multiple sclerosis (MS) development. Methods A nationwide, prospective cohort study based on participants ...
    • An Association of Chitinase-3 Like-Protein-1 With Neuronal Deterioration in Multiple Sclerosis 

      Ahmad, Intakhar; Wergeland, Stig; Oveland, Eystein; Bø, Lars (Journal article; Peer reviewed, 2023)
      Elevated levels of Chitinase-3-like protein-1 (CHI3L1) in cerebrospinal fluid have previously been linked to inflammatory activity and disease progression in multiple sclerosis (MS) patients. This study aimed to investigate ...
    • The CLARION study: first report on safety findings in patients newly initiating treatment with cladribine tablets or fingolimod for multiple sclerosis 

      Butzkueven, Helmut; Hillert, Jan; Soilu-Hänninen, Merja; Ziemssen, Tjalf; Kuhle, Jens; Wergeland, Stig; Magyari, Melinda; Berger, Joseph R.; Moore, Nicholas; Aydemir, Aida; Bezemer, Irene; Sabidó, Meritxell (Journal article; Peer reviewed, 2023)
      Objectives As part of the CLARION study: (1) characterize the incidence of severe infections, herpes zoster, and malignancies in patients newly initiating cladribine or fingolimod for relapsing multiple sclerosis (MS); ...
    • Cuprizone and EAE mouse frontal cortex proteomics revealed proteins altered in multiple sclerosis 

      Oveland, Eystein; Ahmad, Intakhar; Lereim, Ragnhild Reehorst; Kroksveen, Ann Cathrine; Barsnes, Harald; Guldbrandsen, Astrid; Myhr, Kjell-Morten; Bø, Lars; Berven, Frode Steingrimsen; Wergeland, Stig (Journal article; Peer reviewed, 2021)
      Two pathophysiological different experimental models for multiple sclerosis were analyzed in parallel using quantitative proteomics in attempts to discover protein alterations applicable as diagnostic-, prognostic-, or ...
    • Dietary Vitamin D3 Supplements Reduce Demyelination in the Cuprizone Model 

      Wergeland, Stig; Torkildsen, Øivind; Myhr, Kjell-Morten; Aksnes, Lage; Mørk, Sverre; Bø, Lars (Peer reviewed; Journal article, 2011-10-20)
      Vitamin D is emerging as a probably important environmental risk factor in multiple sclerosis, affecting both susceptibility and disease progression. It is not known to what extent this effect is due to a modulation of ...
    • The Effect of Smoking on Long-term Gray Matter Atrophy and Clinical Disability in Patients with Relapsing-Remitting Multiple Sclerosis 

      Lie, Ingrid Anne; Wesnes, Kristin; Kvistad, Silje S.; Brouwer, Iman; Wergeland, Stig; Holmøy, Trygve; Midgard, Rune; Bru, Alla Nikolajevna S; Edland, Astrid; Eikeland, Randi; Gosal, Sonia; Harbo, Hanne-Cathrin Flinstad; Kleveland, Grethe; Sørenes, Yvonne; Øksendal, Nina; Barkhof, Frederik; Vrenken, Hugo; Myhr, Kjell-Morten; Bø, Lars; Torkildesen, Øivind (Journal article; Peer reviewed, 2022)
      Background and Objectives The relationship between smoking, long-term brain atrophy, and clinical disability in patients with multiple sclerosis (MS) is unclear. Here, we assessed long-term effects of smoking by evaluating ...
    • Fingolimod does not enhance cerebellar remyelination in the cuprizone model 

      Alme, Maria Nordheim; Nystad, Agnes Elisabeth; Bø, Lars; Myhr, Kjell-Morten; Vedeler, Christian A.; Wergeland, Stig; Torkildsen, Øivind (Journal article, 2015-08)
      Fingolimod (FTY720) is approved for treatment of relapsing–remitting multiple sclerosis. In vitro studies have found that fingolimod stimulates remyelination in cerebellar slices, but in vivo animal studies have not detected ...
    • A higher proportion of ermin-immunopositive oligodendrocytes in areas of remyelination 

      Ahmad, Intakhar; Wergeland, Stig; Oveland, Eystein; Bø, Lars (Journal article; Peer reviewed, 2021)
      Incomplete remyelination is frequent in multiple sclerosis (MS)-lesions, but there is no established marker for recent remyelination. We investigated the role of the oligodendrocyte/myelin protein ermin in de- and remyelination ...
    • Humoral immunity to SARS-CoV-2 mRNA vaccination in multiple sclerosis: the relevance of time since last rituximab infusion and first experience from sporadic revaccinations 

      König, Marton; Lorentzen, Åslaug Rudjord; Torgauten, Hilde Marie; Tran, The Trung; Schikora-Rustad, Stine; Vaage, Eline Benno; Mygland, Åse Daasvand; Wergeland, Stig; Aarseth, Jan Harald; Aaberge, Ingeborg Sundsvalen; Torkildsen, Øivind; Holmøy, Trygve; Berge, Tone; Myhr, Kjell-Morten; Harbo, Hanne-Cathrin Flinstad; Andersen, Jan Terje; Munthe, Ludvig Andre; Søraas, Arne Vasli; Celius, Elisabeth Gulowsen; Vaage, John T.; Lund-Johansen, Fridtjof; Nygaard, Gro Owren (Journal article; Peer reviewed, 2021)
      Introduction The effect of disease-modifying therapies (DMT) on vaccine responses is largely unknown. Understanding the development of protective immunity is of paramount importance to fight the COVID-19 pandemic. Objective ...
    • Humoral response to Epstein-Barr virus in patients with multiple sclerosis treated with B cell depletion therapy 

      Rød, Brit Ellen; Wergeland, Stig; Bjørnevik, Kjetil Lauvland; Holmøy, Trygve; Ulvestad, Elling; Njølstad, Gro; Myhr, Kjell-Morten; Torkildsen, Øivind (Journal article; Peer reviewed, 2023)
      Background B cell depletion therapy is highly effective in relapsing-remitting multiple sclerosis (RRMS). However, the precise underlying mechanisms of action for its biological effects in MS have still not been clarified. ...
    • Inflammation markers in multiple sclerosis: CXCL16 reflects and may also predict disease activity 

      Holmøy, Trygve; Løken-Amsrud, Kristin Ingeleiv; Bakke, Jacob; Beiske, Antonie Giæver; Bjerve, Kristian S; Hovdal, Harald Olav; Lilleås, Finn; Midgard, Rune; Pedersen, Tom; Saltyte Benth, Jurate; Torkildsen, Øivind; Wergeland, Stig; Myhr, Kjell-Morten; Michelsen, Annika; Aukrust, Pål; Ueland, Thor (Peer reviewed; Journal article, 2013-09-19)
      Background. Serum markers of inflammation are candidate biomarkers in multiple sclerosis (MS). ω-3 fatty acids are suggested to have anti-inflammatory properties that might be beneficial in MS. We aimed to explore the ...
    • Low vitamin D, but not tobacco use or high BMI, is associated with long-term disability progression in multiple sclerosis 

      Wesnes, Kristin; Myhr, Kjell-Morten; Riise, Trond; Stokke, Silje Agnethe; Torkildsen, Øivind; Wergeland, Stig; Holmøy, Trygve; Midgard, Rune; Bru, Alla Nikolajevna S; Edland, Astrid; Eikeland, Randi; Gosal, Sonia; Harbo, Hanne Flinstad; Kleveland, Grethe; Sørenes, Yvonne; Øksendal, Nina; Bjørnevik, Kjetil Lauvland (Journal article; Peer reviewed, 2021)
      Background: Low vitamin D levels, tobacco use and high body mass index (BMI) have been linked to adverse disease outcomes in multiple sclerosis (MS), but their influence on long-term disability progression remains unclear. ...
    • Magnetization transfer ratio does not correlate to myelin content in the brain in the MOG-EAE mouse model 

      Fjær, Sveinung; Bø, Lars; Myhr, Kjell-Morten; Torkildsen, Øivind; Wergeland, Stig (Peer reviewed; Journal article, 2015-03-02)
      Magnetization transfer ratio (MTR) is a magnetic resonance imaging (MRI) method which may detect demyelination not detected by conventional MRI in the central nervous system of patients with multiple sclerosis (MS). A ...
    • Neurofilament light chain predicts disease activity in relapsing-remitting MS 

      Varhaug, Kristin Nielsen; Barro, Christian; Bjørnevik, Kjetil Lauvland; Myhr, Kjell-Morten; Torkildsen, Øivind; Wergeland, Stig; Bindoff, Laurence; Kuhle, Jens; Vedeler, Christian A. (Peer reviewed; Journal article, 2018)
      Objective: To investigate whether serum neurofilament light chain (NF-L) and chitinase 3-like 1 (CHI3L1) predict disease activity in relapsing-remitting MS (RRMS). Methods: A cohort of 85 patients with RRMS were followed ...
    • The neuroprotective potential of mesenchymal stem cells from bone marrow and human exfoliated deciduous teeth in a murine model of demyelination 

      Kråkenes, Torbjørn; Wergeland, Stig; Al-Sharabi, Niyaz Abdulbaqi Abdulmajid; Mohamed-Ahmed, Samih Salah Eldin Mahgoub; Fromreide, Siren; Costea, Daniela Elena; Mustafa, Kamal Babikeir Elnour; Bø, Lars; Kvistad, Christopher Elnan (Journal article; Peer reviewed, 2023)
      Introduction Multiple sclerosis (MS) is characterized by chronic inflammation, demyelination, and axonal degeneration within the central nervous system (CNS), for which there is no current treatment available with the ...
    • No association of tobacco use and disease activity in multiple sclerosis 

      Kvistad, Silje; Myhr, Kjell-Morten; Holmøy, Trygve; Saltyte Benth, Jurate; Løken-Amsrud, Kristin Ingeleiv; Wergeland, Stig; Beiske, Antonie Giæver; Bjerve, Kristian S; Hovdal, Harald Olav; Lilleås, Finn; Midgard, Rune; Pedersen, Tom; Bakke, Søren Jacob; Torkildsen, Øivind (Peer reviewed; Journal article, 2016-08)
      Objective: To study whether tobacco use is associated with MRI and clinical disease activity in patients with multiple sclerosis (MS). Methods: Prospective cohort study of 87 patients with relapsing-remitting MS originally ...
    • Perinatal Depression and Anxiety in Women with Multiple Sclerosis: A Population-Based Cohort Study 

      Eid, Karine; Torkildsen, Øivind Fredvik Grytten; Aarseth, Jan Harald; Flemmen, Heidi Øyen; Holmøy, Trygve; Lorentzen, Åslaug Rudjord; Myhr, Kjell-Morten; Riise, Trond; Simonsen, Cecilia Smith; Torkildsen, Cecilie Fredvik; Wergeland, Stig; Willumsen, Johannes Sverre; Øksendal, Nina; Gilhus, Nils Erik; Bjørk, Marte-Helene (Journal article; Peer reviewed, 2021)
      Objective: To assess the occurrence of perinatal depression and anxiety in women before and after diagnosis of multiple sclerosis (MS). Methods: 114,629 pregnant women were included in the Norwegian Mother, Father and Child ...
    • Predictors of hospitalization due to infection in rituximab-treated MS patients 

      Karlowicz, Jakob Rishovd; Klakegg, Mattias; Aarseth, Jan Harald; Bø, Lars; Myhr, Kjell-Morten; Torgauten, Hilde Marie; Torkildsen, Øivind; Wergeland, Stig (Journal article; Peer reviewed, 2023)
      Background: Rituximab is extensively used off-label to treat multiple sclerosis (MS), and long-term vigilance for adverse events is needed. This study was conducted to determine frequencies and predictors of hematological ...