Øivind Torkildsen er professor i nevrologi ved Universitetet i Bergen og overlege ved nevrologisk avdeling, Haukeland Universitetssykehus. Han er seksjonsleder for seksjon for nevrologi ved Universitetet i Bergen.

Han forsker på multippel sklerose (MS) og arbeider særlig med behandlingsstudier på sykdommen. 

Han er koordinator for EBV-MS prosjektet, som har finansiering fra Horizon (Overview of all EBV-MS project partners | EBV-MS | UiB). 

Vitenskapelig artikkel

• Torkildsen, Øivind Fredvik Grytten; Bru, Alla Nikolajevna S; Behzadi, Gry Inger N et al. (2026). Successful Treatment of Progressive Multifocal Leukoencephalopathy With Tenofovir Alafenamide Fumarate. (ekstern lenke)
• Schoof, Lisa G.; Rød, Brit Ellen; Mahdaoui, Sahla El et al. (2025). Non-inferiority of Rituximab versus OCrelizumab in Multiple Sclerosis (ROC-MS)—an individual participant data meta-analysis. (ekstern lenke)
• Anandan, Shamundeeswari; Maciak, Karina; Breinbauer, Regina et al. (2025). In-Depth Characterization of L1CAM+ Extracellular Vesicles as Potential Biomarkers for Anti-CD20 Therapy Response in Relapsing–Remitting Multiple Sclerosis. (ekstern lenke)
• Korbmacher, Max; Lie, Ingrid Anne; Wesnes, Kristin et al. (2025). Multimodal predictors of disability progression and processing speed decline in relapsing–remitting multiple sclerosis. (ekstern lenke)
• Furevik, Liv; Lapina, Oksana; Lindland, Elisabeth Margrete Stokke et al. (2025). Brain MRI findings in patients with post COVID-19 condition: frequency and longitudinal changes in a nationwide cohort study. (ekstern lenke)
• Gavasso, Sonia; Haugsøen, Jonas Bull; Kleftogiannis, Dimitrios et al. (2025). High-dimensional Immune Profiling Following Autologous Hematopoietic Stem Cell Transplantation in Relapsing-Remitting Multiple Sclerosis. (ekstern lenke)
• Serkland, Trond Trætteberg; Skrede, Silje; Hallin, Erik Ingmar et al. (2025). Pharmacokinetic-pharmacodynamic modelling in a clinical pilot study of rituximab in multiple sclerosis: Towards personalized dosing interval. (ekstern lenke)
• Rød, Brit Ellen; Høgestøl, Einar August; Torkildsen, Øivind et al. (2025). Comparative effectiveness of rituximab and cladribine in relapsing–remitting multiple sclerosis: A target trial emulation. (ekstern lenke)
• Fossum, Maria Therese; Torgauten, Hilde Marie; Aarseth, Jan Harald et al. (2025). Early extended interval dosing of rituximab in multiple sclerosis: A comparative cohort study on efficacy and safety. (ekstern lenke)
• Eid, Karine; Torkildsen, Øivind; Aarseth, Jan Harald et al. (2024). Migraine in the multiple sclerosis prodrome: a prospective nationwide cohort study in pregnant women. (ekstern lenke)
• Gottschlich, Katharina Natalie; Zolic-Karlsson, Zinajda; Aas, Eline et al. (2024). Healthcare utilization and costs associated with autologous haematopoietic stem cell transplantation in Norwegian patients with relapsing remitting multiple sclerosis. (ekstern lenke)
• Kalincik, Tomas; Sharmin, Sifat; Roos, Izanne et al. (2024). Effectiveness of autologous haematopoietic stem cell transplantation versus natalizumab in progressive multiple sclerosis. (ekstern lenke)
• Torgauten, Hilde Marie; Onyango, Therese Bredholt; Ljostveit, Sonja et al. (2024). Hospitalisations and humoral COVID-19 vaccine response in vaccinated rituximab-treated multiple sclerosis patients. (ekstern lenke)
• Kvistad, Christopher Elnan; Lehmann, Anne Kristine; Stokke, Silje Agnethe et al. (2024). Autologous hematopoietic stem cell transplantation for multiple sclerosis: Long-term follow-up data from Norway. (ekstern lenke)
• Coerver, E.; Schoof, L.; Hogenboom, L. et al. (2024). The recurrence of disease activity after ocrelizumab discontinuation in multiple sclerosis. (ekstern lenke)
• Frederiksen, Jette Lautrup; Massacesi, Luca; Nielsen, Helle Hvilsted et al. (2024). Effect of alemtuzumab on fatigue, quality of life, and patient/caregiver-reported outcomes in relapsing-remitting multiple sclerosis-A real-world evidence study. (ekstern lenke)
• Riemer, Frank; Skorve, Ellen; Pasternak, Ofer et al. (2023). Microstructural changes precede depression in patients with relapsing-remitting Multiple Sclerosis. (ekstern lenke)
• Førde, Jan-Lukas; Herfindal, Lars; Myhr, Kjell-Morten et al. (2023). Ocrelizumab and ofatumumab, but not rituximab, trigger complement induction in vitro. (ekstern lenke)
• Habbestad, Andrea Kyvik; Willumsen, Johannes Sverre; Aarseth, Jan Harald et al. (2023). Increasing age of multiple sclerosis onset from 1920 to 2022: a population-based study. (ekstern lenke)
• Rød, Brit Ellen; Wergeland, Stig; Bjørnevik, Kjetil Lauvland et al. (2023). Humoral response to Epstein-Barr virus in patients with multiple sclerosis treated with B cell depletion therapy. (ekstern lenke)
• Ueland, Grethe Åstrøm; Ueland, Hans Olav; Stokland, Ann-Elin Meling et al. (2023). Prevalence, Risk Factors, and Clinical and Biochemical Characteristics of Alemtuzumab-Induced Graves Disease. (ekstern lenke)
• Kalincik, Tomas; Sharmin, Sifat; Roos, Izanne et al. (2023). Comparative Effectiveness of Autologous Hematopoietic Stem Cell Transplant vs Fingolimod, Natalizumab, and Ocrelizumab in Highly Active Relapsing-Remitting Multiple Sclerosis. (ekstern lenke)
• Karlowicz, Jakob Rishovd; Klakegg, Mattias; Aarseth, Jan Harald et al. (2023). Predictors of hospitalization due to infection in rituximab-treated MS patients. (ekstern lenke)
• Stokke, Silje Agnethe; Burman, Joachim; Lehmann, Anne Kristine et al. (2022). Impact of previous disease-modifying treatment on safety and efficacy in patients with MS treated with AHSCT. (ekstern lenke)
• Eid, Karine; Torkildsen, Øivind; Aarseth, Jan Harald et al. (2022). Association of adverse childhood experiences with the development of multiple sclerosis. (ekstern lenke)
• Eid, Karine; Torkildsen, Øivind; Aarseth, Jan Harald et al. (2022). Abuse and revictimization in adulthood in multiple sclerosis: a cross-sectional study during pregnancy. (ekstern lenke)
• Torkildsen, Øivind (2022). Hva vi kan lære av historien om lobotomi. (ekstern lenke)
• Hestvik, Anne Lise Karlsgot; Frederiksen, Jette Lautrup; Nielsen, Helle Hvilsted et al. (2022). Real-world study of relapsing-remitting multiple sclerosis patients treated with Teriflunomide in Nordic countries: Quality-Of-Life, efficacy, safety and adherence outcomes. (ekstern lenke)
• Lie, Ingrid Anne; Kerklingh, Emma; Wesnes, Kristin et al. (2022). The effect of gadolinium-based contrast-agents on automated brain atrophy measurements by FreeSurfer in patients with multiple sclerosis. (ekstern lenke)
• Grytten, Nina; Myhr, Kjell-Morten; Celius, Elisabeth Gulowsen et al. (2022). Cancer related mortality in multiple sclerosis. A population based cohort study. (ekstern lenke)
• Skorve, Ellen; Lundervold, Astri J.; Torkildsen, Øivind et al. (2022). Brief international cognitive assessment for MS (BICAMS) and global brain volumes in early stages of MS – A longitudinal correlation study. (ekstern lenke)
• Hallin, Erik Ingmar; Serkland, Trond Trætteberg; Myhr, Kjell-Morten et al. (2022). Ocrelizumab quantitation by liquid chromatography-tandem mass spectrometry. (ekstern lenke)
• Rød, Brit Ellen; Torkildsen, Øivind; Myhr, Kjell-Morten et al. (2022). Safety of breast feeding during rituximab treatment in multiple sclerosis. (ekstern lenke)
• Lie, Ingrid Anne; Wesnes, Kristin; Kvistad, Silje Agnethe Stokke et al. (2022). The Effect of Smoking on Long-term Gray Matter Atrophy and Clinical Disability in Patients with Relapsing-Remitting Multiple Sclerosis. (ekstern lenke)
• Lie, Ingrid Anne; Kacar, Sezgi; Wesnes, Kristin et al. (2022). Serum neurofilament as a predictor of 10-year grey matter atrophy and clinical disability in multiple sclerosis: a longitudinal study. (ekstern lenke)
• Grytten, Nina; Myhr, Kjell-Morten; Celius, Elisabeth Gulowsen et al. (2021). Incidence of cancer in multiple sclerosis before and after the treatment era– a registry- based cohort study. (ekstern lenke)
• Wesnes, Kristin; Myhr, Kjell-Morten; Riise, Trond et al. (2021). Low vitamin D, but not tobacco use or high BMI, is associated with long-term disability progression in multiple sclerosis. (ekstern lenke)
• Eid, Karine; Torkildsen, Øivind Fredvik Grytten; Aarseth, Jan Harald et al. (2021). Perinatal Depression and Anxiety in Women with Multiple Sclerosis: A Population-Based Cohort Study. (ekstern lenke)
• Høglund, Rune Alexander; Meyer, Haakon Eduard; Stigum, Hein et al. (2021). Association of body mass index in Adolescence and young Adulthood and long-term risk of multiple Sclerosis: A Population-Based Study. (ekstern lenke)
• König, Marton; Lorentzen, Åslaug Rudjord; Torgauten, Hilde Marie et al. (2021). 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. (ekstern lenke)
• Wergeland, Stig; Parkar, Anagha P; Maric, Snezana et al. (2021). En ung kvinne med langvarig kvalme, oppkast og hikke. (ekstern lenke)
• Torgauten, Hilde Marie; Myhr, Kjell-Morten; Wergeland, Stig et al. (2021). Safety and efficacy of rituximab as first- and second line treatment in multiple sclerosis – A cohort study. (ekstern lenke)
• Torkildsen, Øivind; Linker, Ralf A; Sesmero, Jose Mm et al. (2021). Living with secondary progressive multiple sclerosis in Europe: Perspectives of multiple stakeholders. (ekstern lenke)
• Myhr, Kjell-Morten; Torkildsen, Øivind Fredvik (2020). Serum NFL levels should be used to monitor multiple sclerosis evolution - No.. (ekstern lenke)
• Kvalvik, Sedina Atic; Skarstein, Ingerid; Veddeng, Anne et al. (2020). An immunocompromised woman in her twenties with abdominal pain and vaginal discharge. (ekstern lenke)
• Røsjø, Egil Rørvik; Lindstrøm, Jonas Christoffer; Holmøy, Trygve et al. (2020). Natural Variation of Vitamin D and Neurofilament Light Chain in Relapsing-Remitting Multiple Sclerosis. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Myhr, Kjell-Morten; Skogen, Vegard et al. (2020). Tenofovir as a treatment option for multiple sclerosis. (ekstern lenke)
• Skorve, Ellen; Lundervold, Astri; Torkildsen, Øivind et al. (2020). A two-year longitudinal follow-up of cognitive performance assessed by BICAMS in newly diagnosed patients with MS. (ekstern lenke)
• Grytten, Nina; Myhr, Kjell-Morten; Celius, Elisabeth Gulowsen et al. (2019). Risk of cancer among multiple sclerosis patients, siblings, and population controls: A prospective cohort study. (ekstern lenke)
• Skorve, Ellen; Lundervold, Astri; Torkildsen, Øivind et al. (2019). The Norwegian translation of the brief international cognitive assessment for multiple sclerosis (BICAMS). (ekstern lenke)
• Nystad, Agnes Elisabeth; Lereim, Ragnhild Reehorst; Wergeland, Stig et al. (2019). Fingolimod downregulates brain sphingosine-1-phosphate receptor 1 levels but does not promote remyelination or neuroprotection in the cuprizone model. (ekstern lenke)
• Stokke, Silje Agnethe; Lehmann, Anne Kristine; Trovik, Linn et al. (2019). Safety and efficacy of autologous hematopoietic stem cell transplantation for multiple sclerosis in Norway. (ekstern lenke)
• Stokke, Silje Agnethe; Myhr, Kjell-Morten; Holmøy, Trygve et al. (2018). Serum levels of leptin and adiponectin are not associated with disease activity or treatment response in multiple sclerosis. (ekstern lenke)
• Hobart, Jeremy; Bowen, Amy; Pepper, George et al. (2018). International consensus on quality standards for brain health-focused care in multiple sclerosis. (ekstern lenke)
• Nystad, Agnes Elisabeth; Torkildsen, Øivind; Wergeland, Stig (2018). Effects of vitamin D on axonal damage during de- and remyelination in the cuprizone model. (ekstern lenke)
• Bjørnevik, Kjetil Lauvland; Myhr, Kjell-Morten; Beiske, Antonie Giæver et al. (2018). α-Linolenic acid is associated with MRI activity in a prospective cohort of multiple sclerosis patients.. (ekstern lenke)
• Bjørnevik, Kjetil; Riise, Trond; Benjaminsen, Espen et al. (2017). Level of education and multiple sclerosis risk over a 50-year period: Registry-based sibling study. (ekstern lenke)
• Kroksveen, Ann Cathrine; Guldbrandsen, Astrid; Vaudel, Marc et al. (2017). In-depth cerebrospinal fluid quantitative proteome and deglycoproteome analysis: presenting a comprehensive picture of pathways and processes affected by multiple sclerosis. (ekstern lenke)
• Varhaug, Kristin Nielsen; Barro, Christian; Bjørnevik, Kjetil Lauvland et al. (2017). Neurofilament light chain predicts disease activity in relapsing-remitting MS. (ekstern lenke)
• Røsjø, Egil Rørvik; Lossius, Peter Andreas Vold; Abdelmagid, Nada et al. (2017). Effect of high-dose vitamin D3 supplementation on antibody responses against Epstein-Barr virus in relapsing-remitting multiple sclerosis. (ekstern lenke)
• Oveland, Eystein; Nystad, Agnes Elisabeth; Berven, Frode et al. (2017). 1,25-Dihydroxyvitamin-D3 induces brain proteomic changes in cuprizone mice during remyelination involving calcium proteins. (ekstern lenke)
• Brakedal, Brage; Flønes, Irene Hana; Reiter, Simone B. C. Frizell et al. (2017). Glitazone use associated with reduced risk of Parkinson's disease. (ekstern lenke)
• Holmøy, Trygve; Torkildsen, Øivind; Myhr, Kjell-Morten (2017). An update on cladribine for relapsing-remitting multiple sclerosis. (ekstern lenke)
• Lereim, Ragnhild Reehorst; Oveland, Eystein; Xiao, Y. et al. (2016). The Brain Proteome of the Ubiquitin Ligase Peli1 Knock-Out Mouse during Experimental Autoimmune Encephalomyelitis. (ekstern lenke)
• Lunde, Hanne Marie; Torkildsen, Øivind; Bø, Lars et al. (2016). Botulinum Toxin as Monotherapy in Symptomatic Trigeminal Neuralgia. (ekstern lenke)
• Holmøy, Trygve; Torkildsen, Øivind (2016). Familieplanlegging, graviditet og amming ved multippel sklerose. (ekstern lenke)
• Holmøy, Trygve; Esbensen, Qin Ying; Torkildsen, Øivind et al. (2016). WT1 and interferon-β–vitamin D association in MS: a longitudinal study.. (ekstern lenke)
• Kvistad, Christopher Elnan; Torkildsen, Øivind; Næss, Halvor et al. (2016). Trombolytisk behandling og trombektomi ved ukjent slagdebut. (ekstern lenke)
• Opsahl, Jill Anette; Vaudel, Marc; Guldbrandsen, Astrid et al. (2016). Label-free analysis of human cerebrospinal fluid addressing various normalization strategies and revealing protein groups affected by multiple sclerosis. (ekstern lenke)
• Torkildsen, Øivind; Power, Øystein Alexander; Storstein, Anette (2016). Detection of varicella-zoster virus DNA during medullary and brainstem relapses in multiple sclerosis. (ekstern lenke)
• Torkildsen, Øivind; Myhr, Kjell-Morten; Bø, Lars (2016). Disease-modifying treatments for multiple sclerosis – a review of approved medications. (ekstern lenke)
• Kvistad, Silje; Myhr, Kjell-Morten; Holmøy, Trygve et al. (2016). No association of tobacco use and disease activity in multiple sclerosis. (ekstern lenke)
• Wergeland, Stig; Myhr, Kjell-Morten; Løken-Amsrud, Kristin Ingeleiv et al. (2016). Vitamin D, HLA-DRB1 and Epstein-Barr virus antibody levels in a prospective cohort of multiple sclerosis patients. (ekstern lenke)
• Kroksveen, Ann Cathrine; Opsahl, Jill Anette; Guldbrandsen, Astrid et al. (2015). Cerebrospinal fluid proteomics in multiple sclerosis. (ekstern lenke)
• Stokke, Silje Agnethe; Myhr, Kjell-Morten; Holmøy, Trygve et al. (2015). Body mass index influence interferon-beta treatment response in multiple sclerosis. (ekstern lenke)
• Røsjø, Egil Rørvik; Myhr, Kjell-Morten; Løken-Amsrud, Kristin Ingeleiv et al. (2015). Vitamin D status and effect of interferon-β1a treatment on MRI activity and serum inflammation markers in relapsing-remitting multiple sclerosis. (ekstern lenke)
• Fjær, Sveinung; Bø, Lars; Myhr, Kjell-Morten et al. (2015). Magnetization transfer ratio does not correlate to myelin content in the brain in the MOG-EAE mouse model. (ekstern lenke)
• Kroksveen, Ann Cathrine; Jaffe, Jacob D.; Aasebø, Elise et al. (2015). Quantitative proteomics suggests decrease in the secretogranin-1 cerebrospinal fluid levels during the disease course of multiple sclerosis. (ekstern lenke)
• Alme, Maria Nordheim; Nystad, Agnes Elisabeth; Bø, Lars et al. (2015). Fingolimod does not enhance cerebellar remyelination in the cuprizone model. (ekstern lenke)
• Løken-Amsrud, Kristin Ingeleiv; Lossius, Peter Andreas Vold; Torkildsen, Øivind et al. (2015). Miljøets betydning ved multippel sklerose. (ekstern lenke)
• Kuhle, Jens; Disanto, G; Dobson, R et al. (2015). Conversion from clinically isolated syndrome to multiple sclerosis: A large multicantre study. (ekstern lenke)
• Røsjø, Egil Rørvik; Steffensen, Linn Hofsøy; Jørgensen, Lone et al. (2015). Vitamin D supplementation and systemic inflammation in relapsing-remitting multiple sclerosis. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Aarseth, Jan Harald; Benjaminsen, Espen et al. (2014). Month of birth and risk of multiple sclerosis: confounding and adjustments. (ekstern lenke)
• Nystad, Agnes Elisabeth; Wergeland, Stig; Aksnes, Lage et al. (2014). Effect of high-dose 1.25 dihydroxyvitamin D3 on remyelination in the cuprizone model. (ekstern lenke)
• Torkildsen, Øivind; Myhr, Kjell-Morten; Wergeland, Stig (2014). Treatment-resistant immune thrombocytopenic purpura associated with LDN use in a patient with MS. (ekstern lenke)
• Røsjø, Egil Rørvik; Myhr, Kjell-Morten; Løken-Amsrud, Kristin Ingeleiv et al. (2014). Increasing serum levels of vitamin A, D and E are associated with alterations of different inflammation markers in patients with multiple sclerosis. (ekstern lenke)
• Stokke, Silje Agnethe; Myhr, Kjell-Morten; Holmøy, Trygve et al. (2014). Antibodies to Epstein-Barr virus and MRI disease activity in multiple sclerosis. (ekstern lenke)
• Løken, Kristin Ingeleiv; Myhr, Kjell-Morten; Bakke, Jacob et al. (2013). Retinol levels are associated with magnetic resonance imaging outcomes in multiple sclerosis. (ekstern lenke)
• Xiao, Yichuan; Jin, Jin; Chang, Mikyoung et al. (2013). Peli1 promotes microglia-mediated CNS inflammation by regulating Traf3 degradation. (ekstern lenke)
• Torkildsen, Øivind; Løken-Amsrud, Kristin Ingeleiv; Wergeland, Stig et al. (2013). Fat-soluble vitamins as disease modulators in multiple sclerosis. (ekstern lenke)
• Ban, Maria; Caillier, Stacy; Mero, Inger-Lise et al. (2013). No evidence of association between mutant alleles of the CYP27B1 gene and multiple sclerosis. (ekstern lenke)
• Kampman, Margitta Theodora; Aarseth, Jan Harald; Grytten, Nina Agnethe et al. (2013). Sex ratio of multiple sclerosis in persons born from 1930 to 1979 and its relation to latitude in Norway. (ekstern lenke)
• Fjær, Sveinung; Bø, Lars; Lundervold, Arvid et al. (2013). Deep gray matter demyelination detected by magnetization transfer ratio in the cuprizone model. (ekstern lenke)
• Løken-Amsrud, Kristin Ingeleiv; Myhr, Kjell-Morten; Bakke, Søren Jacob et al. (2013). Alpha-tocopherol and MRI outcomes in multiple sclerosis - association and prediction. (ekstern lenke)
• Holmøy, Trygve; Løken-Amsrud, Kristin Ingeleiv; Bakke, Jacob et al. (2013). Inflammation markers in multiple sclerosis: CXCL16 reflects and may also predict disease activity. (ekstern lenke)
• Grytten, Nina Agnethe; Torkildsen, Øivind; Aarseth, Jan Harald et al. (2013). Month of birth as a latitude-dependent risk factor for multiple sclerosis in Norway. (ekstern lenke)
• Torkildsen, Øivind; Grytten, Nina Agnethe; Aarseth, Jan Harald et al. (2012). Month of birth as a risk factor for multiple sclerosis: an update. (ekstern lenke)
• Holmøy, Trygve; Torkildsen, Øivind; Myhr, Kjell-Morten et al. (2012). Vitamin D supplementation and monitoring in multiple sclerosis: who, when and wherefore. (ekstern lenke)
• Wergeland, Stig; Torkildsen, Øivind; Myhr, Kjell-Morten et al. (2012). The cuprizone model: regional heterogeneity of pathology. (ekstern lenke)
• Gavasso, Sonia; Torkildsen, Øivind; Marøy, Tove Helene et al. (2012). Fcγ receptors in Norwegian multiple sclerosis patients and healthy controls. (ekstern lenke)
• Torkildsen, Øivind; Wergeland, Stig; Bakke, Jacob et al. (2012). ω-3 fatty acid treatment in multiple sclerosis (OFAMS study): a randomised, double blind, placebo-controlled trial. (ekstern lenke)
• Myhr, Kjell-Morten; Grytten, Nina Agnethe; Torkildsen, Øivind et al. (2012). A need for national registries and international collaborative research in multiple sclerosis. (ekstern lenke)
• Løken-Amsrud, Kristin Ingeleiv; Holmøy, Trygve; Bakke, Søren J. et al. (2012). Vitamin D and disease activity in multiple sclerosis before and during interferon beta treatment. (ekstern lenke)
• Wergeland, Stig; Torkildsen, Øivind; Myhr, Kjell-Morten et al. (2011). Dietary vitamin D3 supplements reduce demyelination in the cuprizone model. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Stansberg, Christine; Angelskår, Solveig Mjelstad et al. (2010). Upregulation of immunoglobulin-related genes in cortical sections from multiple sclerosis patients. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Brunborg, Linn Anne; Thorsen, Frits Alan et al. (2009). Effects of dietary intervention on MRI activity, de- and remyelination in the cuprizone model for demyelination. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Brunborg, Linn Anne; Milde, Anne Marita et al. (2009). A salmon based diet protects mice from behavioural changes in the cuprizone model for demyelination. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Knappskog, Per; Nyland, Harald Inge et al. (2008). Vitamin D-dependent rickets as a possible risk factor for multiple sclerosis. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Nyland, Harald Inge; Myrmel, Helge et al. (2008). Epstein-Barr virus reactivation and multiple sclerosis. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Brunborg, Linn Anne Bjelland; Myhr, Kjell-Morten et al. (2008). The cuprizone model for demyelination. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Grytten, Nina Agnethe; Myhr, Kjell-Morten (2007). Immunomodulatory treatment of multiple sclerosis in Norway. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Vedeler, Christian A.; Nyland, Harald Inge et al. (2006). Fc gamma R and multiple sclerosis: an overview. (ekstern lenke)
• Torkildsen, O; Torkildsen, Øivind Fredvik; Utsi, Egil et al. (2005). Ethnic variations of IL-10 polymorphisms in a Sami and Norwegian population. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Vedeler, Christian A.; Ulvestad, Elling et al. (2005). High dose methylprednisolone induces FcgammaR1 on granulocytes in MS-patients. (ekstern lenke)
• Torkildsen, O; Torkildsen, Øivind Fredvik; Utsi, Egil et al. (2005). Ethnic variation of Fc gamma receptor polymorphism in Sami and Norwegian populations. (ekstern lenke)
• Torkildsen, Øivind; Farbu, Elisabeth (2005). Lars Hertervig og Carl Fredrik Hill - kreativitet og psykisk sykdom. (ekstern lenke)

Vitenskapelig oversiktsartikkel/review

• Anandan, Shamundeeswari; Maciak, Karina; Breinbauer, Regina et al. (2025). Brain-derived blood biomarkers in multiple sclerosis—current trends and beyond. (ekstern lenke)
• Eid, Karine; Bjørk, Marte-Helene; Gilhus, Nils Erik et al. (2024). Adverse Childhood Experiences and the Risk of Multiple Sclerosis Development: A Review of Potential Mechanisms. (ekstern lenke)
• Lie, Ingrid Anne; Weeda, Merlin M.; Mattiesing, Rozemarijn M. et al. (2022). Relationship between White Matter Lesions and Gray Matter Atrophy in Multiple Sclerosis. (ekstern lenke)
• Holmøy, Trygve; Høglund, Rune Alexander; Illes, Zsolt et al. (2020). Recent progress in maintenance treatment of neuromyelitis optica spectrum disorder. (ekstern lenke)
• Myhr, Kjell-Morten; Torkildsen, Øivind; Lossius, Peter Andreas Vold et al. (2019). B cell depletion in the treatment of multiple sclerosis. (ekstern lenke)
• Smolders, Joost; Torkildsen, Øivind; Camu, William et al. (2019). An Update on Vitamin D and Disease Activity in Multiple Sclerosis. (ekstern lenke)
• Varhaug, Kristin Nielsen; Torkildsen, Øivind; Myhr, Kjell-Morten et al. (2019). Neurofilament light chain as a biomarker in multiple sclerosis. (ekstern lenke)
• Myhr, Kjell-Morten; Grytten, Nina; Torkildsen, Øivind et al. (2015). The Norwegian Multiple Sclerosis Registry and Biobank. (ekstern lenke)
• Grytten, Nina; Torkildsen, Øivind; Myhr, Kjell-Morten (2015). Time trends in the incidence and prevalence of multiple sclerosis in Norway during eight decades. (ekstern lenke)
• Stokke, Silje Agnethe; Wergeland, Stig; Torkildsen, Øivind et al. (2013). Neuromyelitis optica. (ekstern lenke)
• Wergeland, Stig; Torkildsen, Øivind; Bø, Lars et al. (2012). Polyunsaturated fatty acids in multiple sclerosis therapy. (ekstern lenke)
• Vold, Lossius Peter Andreas; Johansen, Jorunn; Torkildsen, Øivind et al. (2012). Epstein-Barr Virus in Systemic Lupus Erythematosus, Rheumatoid Arthritis and Multiple Sclerosis—Association and Causation. (ekstern lenke)

Leder

• Torkildsen, Øivind (2025). Multiple Sclerosis, NMOSD, and the Risk of Autoimmune Diseases. (ekstern lenke)
• Skripuletz, Thomas; Torkildsen, Øivind (2023). Editorial: New cerebrospinal fluid research to uncover mechanisms driving neurological and psychiatric diseases, volume II. (ekstern lenke)
• Holmøy, Trygve; Torkildsen, Øivind (2016). Can Vitamin D reduce inflammation in relapsing-remitting multiple sclerosis?. (ekstern lenke)

Leserinnlegg

• Torkildsen, Øivind; Myhr, Kjell-Morten; Brügger-Synnes, Pascal et al. (2024). Antiviral therapy with tenofovir in MS. (ekstern lenke)
• Lie, Ingrid Anne; Rød, Brit Ellen; Stokke, Silje Agnethe et al. (2023). Interferon β1a treatment does not influence serum Epstein-Barr virus antibodies in patients with multiple sclerosis. (ekstern lenke)
• Nygaard, Gro Owren; Torgauten, Hilde Marie; Skattebøl, Lars et al. (2022). Risk of fingolimod rebound after switching to cladribine or rituximab in multiple sclerosis. (ekstern lenke)
• Wergeland, Stig; Riise, Trond; Torkildsen, Øivind (2018). Response to 'Seasonal variation of vitamin D and Epstein?Barr virus antibody in multiple sclerosis patients', a comment letter regarding 'Vitamin D, HLA-DRB1 and Epstein-Barr virus antibody levels in a prospective cohort of multiple sclerosis patients'. (ekstern lenke)
• Holmøy, Trygve; Torkildsen, Øivind (2017). Re: Familieplanlegging, graviditet og amming ved multippel sklerose. (ekstern lenke)
• Grytten, Nina; Torkildsen, Øivind; Myhr, Kjell-Morten (2015). Reply to comments on the review article 'Time trends in the incidence and prevalence of multiple sclerosis in Norway during eight decades'. (ekstern lenke)
• Torkildsen, Øivind; Aarseth, Jan Harald; Celius, Elisabeth Gulowsen et al. (2014). Reply to comment: Month of birth and risk of multiple sclerosis: confounding and adjustments. (ekstern lenke)
• Holmøy, Trygve; Løken-Amsrud, Kristin Ingeleiv; Kampman, Margitta Theodora et al. (2014). Re: Vitamin D-how much is enough, and is more better for your Health?. (ekstern lenke)
• Ramagopalan, Sreeram V; Hanwell, Heather EC; Giovannoni, Gavin et al. (2010). Vitamin D-Dependent Rickets, HIA-DRB1, and the Risk of Multiple Sclerosis. (ekstern lenke)

Poster

• Gavasso, Sonia; Haugsøen, Jonas Bull; Kleftogiannis, Dimitrios et al. (2024). Short-Term and Long-Term Impact of Autologous Haematopoietic Stem Cell Transplantation on Immune Profiles in Relapsing-Remitting Multiple Sclerosis. (ekstern lenke)
• Rasmussen, Tilde; König, Marton; Lorentzen, Åslaug Rudjord et al. (2022). Safety of a third SARS CoV 2 mRNA vaccine dose in people with multiple sclerosis. (ekstern lenke)
• König, Marton; Wolf, Asia-Sophia Fumika Michaela; Ravussin, Anthony et al. (2022). Immunogenicity and efficacy of mRNA-COVID-19 vaccines in people with multiple sclerosis. (ekstern lenke)
• Serkland, Trond Trætteberg; Hallin, Erik Ingmar; Myhr, Kjell-Morten et al. (2022). LC-MS/MS quantification of ocrelizumab in the treatment of multiple sclerosis. (ekstern lenke)
• König, Marton; Lorentzen, Åslaug Rudjord; Torgauten, Hilde Marie et al. (2021). Humoral Immunity to SARS-CoV-2 mRNA Vaccination in People with Multiple Sclerosis using High-Efficacy Disease Modifying Therapies. (ekstern lenke)

Kronikk

• Torkildsen, Øivind; Rød, Brit Ellen; Bø, Lars et al. (2022). Amming og behandling av multippel sklerose. (ekstern lenke)
• Lie, Ingrid Anne; Blomberg, Bjørn; Power, Øystein Alexander et al. (2018). Mann i 20-årene med svimmelhet, dobbeltsyn og perifer facialisparese. (ekstern lenke)

Vitenskapelig foredrag

• Serkland, Trond Trætteberg; Hallin, Erik Ingmar; Myhr, Kjell-Morten et al. (2022). Rituximab in the treatment of multiple sclerosis: A pharmacokinetic-pharmacodynamic model. (ekstern lenke)
• Røsjø, Egil Rørvik; Myhr, Kjell-Morten; Kampman, Margitta Theodora et al. (2015). Vitamin D og interferon-behandling ved multippel sklerose. (ekstern lenke)

Fagartikkel

• Torkildsen, Øivind; Holmøy, Trygve; Myhr, Kjell-Morten (2018). Severe multiple sclerosis reactivation after gonadotropin treatment. (ekstern lenke)

Sammendrag/Abstract

• Nina, Grytten; Benjaminsen, Espen; Celius, Elisabeth Gulowsen et al. (2017). Cancer risk in multiple sclerosis. (ekstern lenke)
• Torkildsen, Øivind; Myhr, Kjell-Morten; Beiske, Antonie Giæver et al. (2017). alpha-Linolenic acid (ALA) serum levels are associated with reduced MRI activity in a prospective cohort of MS patients. (ekstern lenke)
• Kvistad, SS; Myhr, Kjell-Morten; Holmøy, Trygve et al. (2013). Antibodies to Epstein-Barr virus and disease activity in multiple sclerosis. (ekstern lenke)
• Wergeland, Stig; Torkildsen, Øivind Fredvik; Myhr, Kjell-Morten et al. (2009). Histopathological characterisation of the cuprizone model for demyelination. (ekstern lenke)
• Stansberg, Christine; Angelska, S; Kooi, Evert-Jan et al. (2009). Massive up-regulation of immunoglobulin-related genes in the meninges of multiple sclerosis patients without evidence for Epstein-Barr virus infection. (ekstern lenke)
• Torkildsen, Øivind Fredvik; Brunborg, Linn Anne Bjelland; Milde, Anne Marita et al. (2008). Fish diet prevents impaired mobility in the murine cuprizone model for multiple sclerosis. (ekstern lenke)
• Grytten, Nina Agnethe; Torkildsen, Øivind Fredvik; Aarseth, Jan Harald et al. (2007). Increasing prevalence of multiple sclerosis in the elderly in western Norway. (ekstern lenke)

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

• Myhr, Kjell-Morten; Torkildsen, Øivind; Bø, Lars (2014). Multippel Sklerose. (ekstern lenke)

Doktorgradsavhandling

• Torkildsen, Øivind Fredvik (2010). Environmental risk factors for multiple sclerosis. Results from animal and human studies on diet, vitamin D and Epstein-Barr virus. (ekstern lenke)

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