Jørgen Jahnsen

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Norwegian version of this page
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Visiting address Sykehusveien 25 1474 Nordbyhagen
Postal address Akershus universitetssykehus 1478 Lørenskog

Publications

  • Das, Saykat; Stamnæs, Jorunn; Kemppainen, Esko; Hervonen, Kaisa; Lundin, Knut & Parmar, Naveen [Show all 12 contributors for this article] (2023). Separate Gut Plasma Cell Populations Produce Auto-Antibodies against Transglutaminase 2 and Transglutaminase 3 in Dermatitis Herpetiformis. Advanced Science. ISSN 2198-3844. 10:2300401(25), p. 1–10. doi: 10.1002/advs.202300401. Full text in Research Archive
  • Chauhan, Sudhir Kumar; Bartolome Casado, Raquel; Landsverk, Ole J. B.; Johannessen, Hanna; Phung, Danh Thanh & Nilsen, Hogne Røed [Show all 14 contributors for this article] (2023). Human small intestine contains 2 functionally distinct regulatory T-cell subsets. Journal of Allergy and Clinical Immunology. ISSN 0091-6749. 152(1), p. 278–289.e6. doi: 10.1016/j.jaci.2023.02.030. Full text in Research Archive
  • Kalla, Rahul; Adams, Alex T; Nowak, Jan K; Bergemalm, Daniel; Vatn, Simen Svendsen & Ventham, Nicholas T [Show all 20 contributors for this article] (2023). Analysis of Systemic Epigenetic Alterations in Inflammatory Bowel Disease: Defining Geographical, Genetic and Immune-Inflammatory influences on the Circulating Methylome. Journal of Crohn's and Colitis. ISSN 1873-9946. 17(2), p. 170–184. doi: 10.1093/ecco-jcc/jjac127.
  • Brun, Marthe Kirkesæther; Hammersbøen, Kristin Reine; Viken, Marte Kathrine; Stenvik, Grethe-Elisabeth; Klaasen, Rolf & Gehin, Johanna [Show all 18 contributors for this article] (2023). HLA-DQ2 is associated with anti-drug antibody formation to infliximab in patients with immune-mediated inflammatory diseases. Journal of Internal Medicine. ISSN 0954-6820. 293(5), p. 648–655. doi: 10.1111/joim.13616. Full text in Research Archive
  • Espeland, Kristian; Kleinauskas, Andrius; Juzenas, Petras; Darvekar, Sagar Ramesh; Vasovic, Vlada & Warloe, Trond [Show all 9 contributors for this article] (2023). Photodynamic effects with 5-aminolevulinic acid on cytokines and exosomes in human peripheral blood mononuclear cells from patients with Crohn’s disease. International Journal of Molecular Sciences. ISSN 1661-6596. 24(5), p. 1–20. doi: 10.3390/ijms24054554. Full text in Research Archive
  • Jørgensen, Kristin Kaasen; Høivik, Marte Lie; Chopra, Adity; Saltyte Benth, Jurate; Ricanek, Petr & Moum, Bjørn Allan [Show all 18 contributors for this article] (2023). Humoral immune response to SARS-CoV-2 vaccination in patients with inflammatory bowel disease on immunosuppressive medication: association to serum drug levels and disease type. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 58(8), p. 874–882. doi: 10.1080/00365521.2023.2177884. Full text in Research Archive
  • Chlubnova, Marketa; Christophersen, Asbjørn Otto; Sandve, Geir Kjetil Ferkingstad; Lundin, Knut Erik Aslaksen; Jahnsen, Jørgen & Dahal-Koirala, Shiva [Show all 7 contributors for this article] (2023). Identification of gluten T cell epitopes driving celiac disease. Science Advances. ISSN 2375-2548. 9(4), p. 1–8. doi: 10.1126/sciadv.ade5800. Full text in Research Archive
  • Bjørlykke, Kristin H.; Ørbo, Hilde Sofie Sager; Tveter, Anne Therese; Jyssum, Ingrid; Sexton, Joseph & Tran, Trung [Show all 21 contributors for this article] (2022). Four SARS-CoV-2 vaccine doses or hybrid immunity in patients on immunosuppressive therapies: a Norwegian cohort study. The Lancet Rheumatology. 5(1), p. e36–e46. doi: 10.1016/S2665-9913(22)00330-7.
  • Syversen, Silje Watterdal; Jyssum, Ingrid; Tveter, Anne Therese; Sexton, Joseph; Christensen, Ingrid Egeland & Tran, Trung [Show all 20 contributors for this article] (2022). Immunogenicity and safety of a three-dose SARS-CoV-2 vaccination strategy in patients with immune-mediated inflammatory diseases on immunosuppressive therapy. RMD Open. ISSN 2056-5933. 8(2). doi: 10.1136/rmdopen-2022-002417. Full text in Research Archive
  • Zhou, Chunyan; Østerbye, Thomas; Bach, Emil; Dahal-Koirala, Shiva; Høydahl, Lene Støkken & Steinsbø, Øyvind [Show all 11 contributors for this article] (2022). Focused B cell response to recurring gluten motif with implications for epitope spreading in celiac disease. Cell reports. ISSN 2211-1247. 41:111541(4), p. 1–16. doi: 10.1016/j.celrep.2022.111541. Full text in Research Archive
  • Christensen, Ingrid Egeland; Jyssum, Ingrid; Tveter, Anne Therese; Sexton, Joseph; Tran, Trung & Mjaaland, Siri [Show all 19 contributors for this article] (2022). The persistence of anti-Spike antibodies following two SARS-CoV-2 vaccine doses in patients on immunosuppressive therapy compared to healthy controls—a prospective cohort study. BMC Medicine. ISSN 1741-7015. 20(1), p. 1–13. doi: 10.1186/s12916-022-02587-8. Full text in Research Archive
  • Nowak, Jan K.; Adams, Alex T.; Kalla, Rahul; Lindstrøm, Jonas Christoffer; Vatn, Simen Svendsen & Bergemalm, Daniel [Show all 15 contributors for this article] (2022). Characterisation of the Circulating Transcriptomic Landscape in Inflammatory Bowel Disease Provides Evidence for Dysregulation of Multiple Transcription Factors Including NFE2, SPI1, CEBPB, and IRF2. Journal of Crohn's and Colitis. ISSN 1873-9946. 16(8), p. 1255–1268. doi: 10.1093/ecco-jcc/jjac033. Full text in Research Archive
  • Hammersbøen, Kristin Reine; Jahnsen, Jørgen; Brynskov, Jørn; Molander, Pauliina; Eberhardson, Michael & Davidsdottir, Loà G. [Show all 13 contributors for this article] (2022). Therapeutic drug monitoring in inflammatory bowel disease: implementation, utilization, and barriers in clinical practice in Scandinavia. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. doi: 10.1080/00365521.2022.2108684. Full text in Research Archive
  • Atlasy, Nader; Bujko, Anna; Bækkevold, Espen Sønderaal; Brazda, Peter; Janssen-Megens, Eva & Lundin, Knut [Show all 9 contributors for this article] (2022). Single cell transcriptomic analysis of the immune cell compartment in the human small intestine and in Celiac disease. Nature Communications. ISSN 2041-1723. 13:4920(1), p. 1–14. doi: 10.1038/s41467-022-32691-5. Full text in Research Archive
  • Brun, Marthe Kirkesæther; Goll, Guro Løvik; Jørgensen, Kristin Kaasen; Sexton, Joseph; Gehin, Johanna Elin & Sandanger, Øystein [Show all 15 contributors for this article] (2022). Risk factors for anti-drug antibody formation to infliximab: Secondary analyses of a randomised controlled trial. Journal of Internal Medicine. ISSN 0954-6820. 292(3), p. 477–491. doi: 10.1111/joim.13495. Full text in Research Archive
  • Syversen, Silje Watterdal; Jyssum, Ingrid; Tveter, Anne Therese; Tran, Trung; Sexton, Joseph & Provan, Sella Aarrestad [Show all 22 contributors for this article] (2022). Immunogenicity and Safety of Standard and Third-Dose SARS-CoV-2 Vaccination in Patients Receiving Immunosuppressive Therapy. Arthritis & Rheumatology. ISSN 2326-5191. 74(8), p. 1321–1332. doi: 10.1002/art.42153. Full text in Research Archive
  • Peyrin-Biroulet, Laurent; Arkkila, Perttu; Armuzzi, Alessandro; Danese, Silvio; Guardiola, Jordi & Jahnsen, Jørgen [Show all 16 contributors for this article] (2022). Comparative efficacy and safety of infliximab and vedolizumab therapy in patients with inflammatory bowel disease: a systematic review and meta-analysis. BMC Gastroenterology. ISSN 1471-230X. 22(1). doi: 10.1186/s12876-022-02347-1. Full text in Research Archive
  • Vatn, Simen Svendsen; Lindstrøm, Jonas Christoffer; Moen, Aina Elisabeth Fossum; Brackmann, Stephan Andreas; Tannæs, Tone Møller & Olbjørn, Christine [Show all 19 contributors for this article] (2022). Mucosal Gene Transcript Signatures in Treatment Naïve Inflammatory Bowel Disease: A Comparative Analysis of Disease to Symptomatic and Healthy Controls in the European IBD-Character Cohort. Clinical and Experimental Gastroenterology. ISSN 1178-7023. 15, p. 5–25. doi: 10.2147/CEG.S343468. Full text in Research Archive
  • Christophersen, Asbjørn Otto; Dahal-Koirala, Shiva; Chlubnova, Marketa; Jahnsen, Jørgen; Lundin, Knut & Sollid, Ludvig Magne (2022). Phenotype-Based Isolation of Antigen-Specific CD4+ T Cells in Autoimmunity: A Study of Celiac Disease. Advanced Science. ISSN 2198-3844. 9(10), p. 1–10. doi: 10.1002/advs.202104766. Full text in Research Archive
  • Espeland, Kristian; Kleinauskas, Andrius; Juzenas, Petras; Brech, Andreas; Darvekar, Sagar & Vasovic, Vlada [Show all 10 contributors for this article] (2022). Photodynamic Effects with 5-Aminolevulinic Acid on Cytokines and Exosomes in Human Peripheral Blood Mononuclear Cells. Biomedicines. 10(2). doi: 10.3390/biomedicines10020232. Full text in Research Archive
  • Jelsness-Jørgensen, Lars-Petter; Moum, Bjørn Allan; Grimstad, Tore Bjørn; Jahnsen, Jørgen; Hovde, Øistein & Frigstad, Svein Oskar [Show all 7 contributors for this article] (2022). The multidimensional fatigue inventory (MFI-20): psychometrical testing in a Norwegian sample of inflammatory bowel disease (IBD) patients. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. p. 1–7. doi: 10.1080/00365521.2022.2029939. Full text in Research Archive
  • Bergemalm, Daniel; Andersson, Erik; Hultdin, Johan; Eriksson, Carl; Rush, Stephen T. & Kalla, Rahul [Show all 20 contributors for this article] (2021). Systemic Inflammation in Preclinical Ulcerative Colitis. Gastroenterology. ISSN 0016-5085. 161(5), p. 1526–1539.e9. doi: 10.1053/j.gastro.2021.07.026.
  • Schuppan, Detlef; Maki, Markku; Lundin, Knut Erik Aslaksen; Isola, Jorma; Friesing-Sosnik, Tina & Taavela, Juha [Show all 26 contributors for this article] (2021). A Randomized Trial of a Transglutaminase 2 Inhibitor for Celiac Disease. New England Journal of Medicine. ISSN 0028-4793. 385(1), p. 35–45. doi: 10.1056/NEJMoa2032441. Full text in Research Archive
  • Jyssum, Ingrid; Kared, Hassen; Tran, Trung; Tveter, Anne Therese; Provan, Sella Aarrestad & Sexton, Joseph [Show all 22 contributors for this article] (2021). Humoral and cellular immune responses to two and three doses of SARS-CoV-2 vaccines in rituximab-treated patients with rheumatoid arthritis: a prospective, cohort study. The Lancet Rheumatology. doi: 10.1016/S2665-9913(21)00394-5. Full text in Research Archive
  • Kristensen, Vendel Ailin; Volkmann, Hilde Løland Von; Østvik, Ann Elisabet & Jahnsen, Jørgen (2021). Medisinsk behandling av Crohns sykdom. NGF-nytt. ISSN 0809-6570. 28(4), p. 8–13.
  • Syversen, Silje Watterdal; Jørgensen, Kristin Kaasen; Goll, Guro Løvik; Brun, Marthe Kirkesæther; Sandanger, Øystein & Hammersbøen, Kristin Reine [Show all 33 contributors for this article] (2021). Effect of Therapeutic Drug Monitoring vs Standard Therapy During Maintenance Infliximab Therapy on Disease Control in Patients With Immune-Mediated Inflammatory Diseases: A Randomized Clinical Trial. Journal of the American Medical Association (JAMA). ISSN 0098-7484. 326(23), p. 2375–2384. doi: 10.1001/jama.2021.21316.
  • Romstad, Katrine Maria Kauczynska; Detlie, Trond Espen; Søberg, Taran; Thomas, Owen Matthew Truscott; Ricanek, Petr & Jahnsen, Marte Eide [Show all 8 contributors for this article] (2021). Treatment and outcome of gastrointestinal bleeding due to peptic ulcers and erosions–(BLUE study). Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 57(1), p. 8–15. doi: 10.1080/00365521.2021.1988701. Full text in Research Archive
  • Christophersen, Asbjørn Otto; Zühlke, Stephanie; Lund, Eivind Gard; Snir, Omri; Dahal-Koirala, Shiva & Risnes, Louise Fremgaard [Show all 9 contributors for this article] (2021). Pathogenic T cells in celiac disease change phenotype on gluten challenge: Implications for T-cell-directed therapies. Advanced Science. ISSN 2198-3844. 8(21), p. 1–11. doi: 10.1002/advs.202102778.
  • Frick, Rahel; Høydahl, Lene Støkken; Petersen, Jan; du Pré, Fleur; Kumari, Shraddha & Berntsen, Grete [Show all 20 contributors for this article] (2021). A high-affinity human TCR-like antibody detects celiac disease gluten peptide-MHC complexes and inhibits T cell activation. Science immunology. ISSN 2470-9468. 6:eabg4925(62), p. 1–16. doi: 10.1126/sciimmunol.abg4925. Full text in Research Archive
  • Detlie, Trond Espen; Jahnsen, Marte Eide; Jahnsen, Jørgen; Lindstrøm, Jonas Christoffer; Moum, Bjørn & Finnes, Elisabeth [Show all 7 contributors for this article] (2021). Hypophosphatemia after high-dose intravenous iron treatment in patients with inflammatory bowel disease: Mechanisms and possible clinical impact. World Journal of Gastroenterology (WJG). ISSN 1007-9327. 27(17), p. 2039–2053. doi: 10.3748/wjg.v27.i17.2039.
  • Syversen, Silje Watterdal; Goll, Guro Løvik; Jørgensen, Kristin Kaasen; Sandanger, Øystein; Sexton, Joseph & Olsen, Inge Christoffer [Show all 33 contributors for this article] (2021). Effect of Therapeutic Drug Monitoring vs Standard Therapy During Infliximab Induction on Disease Remission in Patients With Chronic Immune-Mediated Inflammatory Diseases: A Randomized Clinical Trial. Journal of the American Medical Association (JAMA). ISSN 0098-7484. 325(17), p. 1744–1754. doi: 10.1001/jama.2021.4172. Full text in Research Archive
  • Lindeman, Ida; Zhou, Chunyan; Eggesbø, Linn Margrethe; Miao, Zhichao; Polak, Justyna & Lundin, Knut Erik Aslaksen [Show all 10 contributors for this article] (2021). Longevity, clonal relationship, and transcriptional program of celiac disease-specific plasma cells. Journal of Experimental Medicine (JEM). ISSN 0022-1007. 218:e20200852(2), p. 1–16. doi: 10.1084/jem.20200852. Full text in Research Archive
  • Reinisch, Walter; Gecse, Krisztina; Halfvarson, Jonas; Irving, Peter M.; Jahnsen, Jørgen & Peyrin-Biroulet, Laurent [Show all 9 contributors for this article] (2021). Clinical Practice of Adalimumab and Infliximab Biosimilar Treatment in Adult Patients With Crohn's Disease. Inflammatory Bowel Diseases. ISSN 1078-0998. 27(1), p. 106–122. doi: 10.1093/ibd/izaa078. Full text in Research Archive
  • Monstad, Iril Lovise; Solberg, Inger Camilla; Småstuen, Milada Cvancarova; Hovde, Oistein; Henriksen, Magne & Huppertz-Hauss, Gert [Show all 12 contributors for this article] (2021). Outcome of Ulcerative Colitis 20 Years after Diagnosis in a Prospective Population-based Inception Cohort from South-Eastern Norway, the IBSEN Study. Journal of Crohn's and Colitis. ISSN 1873-9946. 15(6), p. 969–979. doi: 10.1093/ecco-jcc/jjaa232. Full text in Research Archive
  • Syversen, Silje Watterdal; Goll, Guro Løvik; Jørgensen, Kristin Kaasen; Olsen, Inge Christoffer; Sandanger, Øystein & Gehin, Johanna Elin [Show all 13 contributors for this article] (2020). Therapeutic drug monitoring of infliximab compared to standard clinical treatment with infliximab: study protocol for a randomised, controlled, open, parallel-group, phase IV study (The NOR-DRUM study). Trials. ISSN 1745-6215. 21(13). doi: 10.1186/s13063-019-3734-4. Full text in Research Archive
  • Vatn, Simen Svendsen; Carstens, Adam; Kristoffersen, Anja Bråthen; Bergemalm, Daniel; Casen, Christina & Moen, Aina Elisabeth Fossum [Show all 19 contributors for this article] (2020). Faecal microbiota signatures of IBD and their relation to diagnosis, disease phenotype, inflammation, treatment escalation and anti-TNF response in a European Multicentre Study (IBD-Character). Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 55(10), p. 1146–1156. doi: 10.1080/00365521.2020.1803396. Full text in Research Archive
  • Kalla, Rahul; Adams, Alex T.; Ventham, Nicholas T.; Kennedy, Nicholas A.; White, R. & Clark, C [Show all 21 contributors for this article] (2020). Whole blood profiling of T-cell derived miRNA allows the development of prognostic models in inflammatory bowel disease . Journal of Crohn's and Colitis. ISSN 1873-9946. 14(12), p. 1724–1733. doi: 10.1093/ecco-jcc/jjaa134. Full text in Research Archive
  • Romstad, Kartine Maria Kauczynska; Detlie, Trond Espen; Søberg, Taran; Ricanek, Petr; Jahnsen, Marte Eide & Lerang, Frode [Show all 7 contributors for this article] (2020). Gastrointestinal bleeding due to peptic ulcers and erosions - a prospective observational study (BLUE study) . Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 55(10), p. 1139–1145. doi: 10.1080/00365521.2020.1819405. Full text in Research Archive
  • Olbjørn, Christine; Rove, Jon Berggren & Jahnsen, Jørgen (2020). Combination of Biological Agents in Moderate to Severe Pediatric Inflammatory Bowel Disease: A Case Series and Review of the Literature. . Pediatric Drugs. ISSN 1174-5878. 22(4), p. 409–416. doi: 10.1007/s40272-020-00396-1. Full text in Research Archive
  • Hewitt, Stephen I; Kristinsson, Jon Adalsteinn; Aasheim, Erlend T.; Høgestøl, Ingvild Kristine; Aaseth, Eirik & Jahnsen, Jørgen [Show all 8 contributors for this article] (2020). Relationships Between Vitamin D Status and PTH over 5 Years After Roux-en-Y Gastric Bypass: a Longitudinal Cohort Study. Obesity Surgery. ISSN 0960-8923. 30(9), p. 3426–3434. doi: 10.1007/s11695-020-04582-5. Full text in Research Archive
  • Kalla, Rahul; Adams, Alex T.; Bergemalm, Daniel; Vatn, Simen Svendsen; Kennedy, Nicholas A. & Ricanek, Petr [Show all 22 contributors for this article] (2020). Serum proteomic profiling at diagnosis predicts clinical course, and need for intensification of treatment in inflammatory bowel disease. Journal of Crohn's and Colitis. ISSN 1873-9946. p. 1–33. doi: 10.1093/ecco-jcc/jjaa230. Full text in Research Archive
  • Kim, HoUng; Alten, Rieke; Avedano, Luisa; Dignass, Axel; Gomollón, Fernando & Greveson, Kay [Show all 19 contributors for this article] (2020). The Future of Biosimilars: Maximizing Benefits Across Immune-Mediated Inflammatory Diseases. Drugs. ISSN 0012-6667. 80(2), p. 99–113. doi: 10.1007/s40265-020-01256-5. Full text in Research Archive
  • Jørgensen, Kristin Kaasen; Goll, Guro Løvik; Sexton, Joseph; Bolstad, Nils; Olsen, Inge Christoffer & Asak, Øivind Wessel [Show all 29 contributors for this article] (2020). Efficacy and safety of CT-P13 in inflammatory bowel disease after switching from originator infliximab: Exploratory analyses from the NOR-SWITCH main and extension trials. BioDrugs. ISSN 1173-8804. 34(5), p. 681–694. doi: 10.1007/s40259-020-00438-7. Full text in Research Archive
  • Klepp, Pasquale Catherine; Brackmann, Stephan; Småstuen, Milada Cvancarova; Høivik, Marte Lie; Hovde, Øistein & Henriksen, Magne [Show all 15 contributors for this article] (2020). Risk of colorectal cancer in a population-based study 20 years after diagnosis of ulcerative colitis: results from the IBSEN study. BMJ open gastroenterology. ISSN 2054-4774. 7. doi: 10.1136/bmjgast-2019-000361. Full text in Research Archive
  • Opheim, Randi; Moum, Bjørn; Grimstad, Tore; Jahnsen, Jørgen; Berset, Ingrid Prytz & Hovde, Øistein [Show all 9 contributors for this article] (2020). Self-esteem in patients with inflammatory bowel disease. Quality of Life Research. ISSN 0962-9343. 29, p. 1839–1846 . doi: 10.1007/s11136-020-02467-9. Full text in Research Archive
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Jahnsen, Jørgen; Småstuen, Milada C; Grimstad, Tore & Berset, Ingrid Prytz [Show all 11 contributors for this article] (2020). Pain Severity and Vitamin D Deficiency in IBD Patients. Nutrients. ISSN 2072-6643. 12(1), p. 1–12. doi: 10.3390/nu12010026. Full text in Research Archive
  • Ossum, Alvilde Maria; Palm, Øyvind; Småstuen, Milada C; Bernklev, Tomm; Jahnsen, Jørgen & Moum, Bjørn [Show all 7 contributors for this article] (2020). The Impact of Spondyloarthritis and Joint Symptoms on Health-Related Quality of Life and Fatigue in IBD Patients. Results from a Population-Based Inception Cohort (20-Year Follow-up in the Ibsen Study). Inflammatory Bowel Diseases. ISSN 1078-0998. doi: 10.1093/ibd/izz105. Full text in Research Archive
  • Dahal-Koirala, Shiva; Neumann, Ralf Stefan; Jahnsen, Jørgen; Lundin, Knut Erik Aslaksen & Sollid, Ludvig Magne (2019). On the immune response to barley in celiac disease: Biased and public T-cell receptor usage to a barley unique and immunodominant gluten epitope. European Journal of Immunology. ISSN 0014-2980. p. 1–14. doi: 10.1002/eji.201948253. Full text in Research Archive
  • Detlie, Trond Espen; Lindstrøm, Jonas Christoffer; Jahnsen, Marte Eide; Finnes, Elisabeth; Zoller, Heinz & Moum, Bjørn [Show all 7 contributors for this article] (2019). Incidence of hypophosphatemia in patients with inflammatory bowel disease treated with ferric carboxymaltose or iron isomaltoside. Alimentary Pharmacology and Therapeutics. ISSN 0269-2813. 50(4), p. 397–406. doi: 10.1111/apt.15386. Full text in Research Archive
  • Olbjørn, Christine; Småstuen, Milada Cvancarova; Thiis-Evensen, Espen; Nakstad, Britt; Vatn, Morten H & Jahnsen, Jørgen [Show all 20 contributors for this article] (2019). Fecal microbiota profiles in treatment-naive pediatric inflammatory bowel disease ? associations with disease phenotype, treatment, and outcome. Clinical and Experimental Gastroenterology. ISSN 1178-7023. 12, p. 37–49. doi: 10.2147/CEG.S186235. Full text in Research Archive
  • Kristensen, Vendel Ailin; Valeur, Jørgen; Brackmann, Stephan; Jahnsen, Jørgen; Brunborg, Cathrine & Tveito, Kari (2019). Attention deficit and hyperactivity disorder symptoms respond to gluten-free diet in patients with coeliac disease. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 54(5), p. 571–576. doi: 10.1080/00365521.2019.1608467.
  • Goll, Guro Løvik; Jørgensen, Kristin Kaasen; Sexton, Joseph; Olsen, Inge Christoffer; Bolstad, Nils & Haavardsholm, Espen A. [Show all 48 contributors for this article] (2019). Long‐term efficacy and safety of biosimilar infliximab (CT‐P13) after switching from originator infliximab: Open‐label extension of the NOR‐SWITCH trial. Journal of Internal Medicine. ISSN 0954-6820. 285(6), p. 653–669. doi: 10.1111/joim.12880. Full text in Research Archive
  • Høydahl, Lene Støkken; Richter, Lisa Maria; Frick, Rahel; Snir, Omri; Gunnarsen, Kristin Støen & Landsverk, Ole J. B. [Show all 18 contributors for this article] (2019). Plasma Cells Are the Most Abundant Gluten Peptide MHC-expressing Cells in Inflamed Intestinal Tissues From Patients With Celiac Disease. Gastroenterology. ISSN 0016-5085. 156(5), p. 1428–1439.e10. doi: 10.1053/j.gastro.2018.12.013. Full text in Research Archive
  • Lunder, Aida Kapic; Bakstad, Linda Tøften; Jahnsen, Jørgen; Borthne, Arne Sigmund; Hov, Johannes Espolin Roksund & Vatn, Morten H [Show all 7 contributors for this article] (2019). Assessment of Bowel Inflammation and Strictures by Magnetic Resonance Enterography in Long-term Crohn´s Disease. Journal of Crohn's and Colitis. ISSN 1873-9946. 13(5), p. 607–614. doi: 10.1093/ecco-jcc/jjy208.
  • Kalla, Rahul; Boyapati, Ray; Vatn, Simen Svendsen; Hijos, Gonzalo; Crooks, Benjamin & Moore, Gregory Thomas [Show all 11 contributors for this article] (2018). Patients' perceptions of faecal calprotectin testing in inflammatory bowel disease: results from a prospective multicentre patient-based survey. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 53(12), p. 1437–1442. doi: 10.1080/00365521.2018.1527394.
  • Moen, Aina Elisabeth Fossum; Lindstrøm, Jonas Christoffer; Tannæs, Tone Møller; Vatn, Simen Svendsen; Ricanek, Petr & Vatn, Morten H [Show all 8 contributors for this article] (2018). The prevalence and transcriptional activity of the mucosal microbiota of ulcerative colitis patients. Scientific Reports. ISSN 2045-2322. 8:17278. doi: 10.1038/s41598-018-35243-4. Full text in Research Archive
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Jahnsen, Jørgen; Småstuen, Milada Cvancarova; Grimstad, Tore & Berset, Ingrid Prytz [Show all 11 contributors for this article] (2018). Fatigue is not associated with vitamin D deficiency in inflammatory bowel disease patients . World Journal of Gastroenterology (WJG). ISSN 1007-9327. 24(29), p. 3293–3301. doi: 10.3748/wjg.v24.i29.3293.
  • Hewitt, Stephen I; AASHEIM, ERLEND T.; Søvik, Torgeir Thorson; Jahnsen, Jørgen; Kristinsson, Jon Adalsteinn & Eriksen, Erik Fink [Show all 7 contributors for this article] (2018). Relationships of serum 25-hydroxyvitamin D, ionized calcium and parathyroid hormone after obesity surgery. Clinical Endocrinology. ISSN 0300-0664. 88(3), p. 372–379. doi: 10.1111/cen.13531.
  • Sunde, Marie Louise; Ricanek, Petr; Øresland, Tom; Jahnsen, Jørgen; Naimy, Nazir & Færden, Arne Engebreth (2018). Determinants of optimal bowel function in ileal pouch-anal-anastomosis - physiological differences contributing to pouch function. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 53(1), p. 8–14. doi: 10.1080/00365521.2017.1390601.
  • Kapica, Aida; Jahnsen, Jørgen; Bakstad, Linda Tøften; Borthne, Arne Sigmund; Hov, Johannes Espolin Roksund & Vatn, Morten H [Show all 7 contributors for this article] (2018). Bowel Damage in Patients With Long-term Crohn's Disease, Assessed by Magnetic Resonance Enterography and the Lemann Index. Clinical Gastroenterology and Hepatology. ISSN 1542-3565. 16(1), p. 75–82.e5. doi: 10.1016/j.cgh.2017.06.053.
  • Raki, Melinda; Dahal-Koirala, Shiva; Yu, Hao; Korponay-Szabó, Ilma R.; Gyimesi, Judit & Castillejo, Gemma [Show all 9 contributors for this article] (2017). Similar Responses of Intestinal T Cells From Untreated Children and Adults With Celiac Disease to Deamidated Gluten Epitopes. Gastroenterology. ISSN 0016-5085. 153(3), p. 787–798.e4. doi: 10.1053/j.gastro.2017.05.016.
  • Jørgensen, Kristin Kaasen; Olsen, Inge Christoffer; Goll, Guro Løvik; Lorentzen, Merete; Bolstad, Nils & Haavardsholm, Espen A. [Show all 10 contributors for this article] (2017). Switching from originator infliximab to biosimilar CT-P13 compared with maintained treatment with originator infliximab (NOR-SWITCH): a 52-week, randomised, double-blind, non-inferiority trial. The Lancet. ISSN 0140-6736. 389(10086), p. 2304–2316. doi: 10.1016/S0140-6736(17)30068-5. Full text in Research Archive
  • Reinisch, Walter W.; Jahnsen, Jørgen; Schreiber, Stefan; Danese, Silvio; Panés, Julián & Balsa, Alejandro [Show all 10 contributors for this article] (2017). Evaluation of the Cross-reactivity of Antidrug Antibodies to CT-P13 and Infliximab Reference Product (Remicade): An Analysis Using Immunoassays Tagged with Both Agents. BioDrugs. ISSN 1173-8804. 31(3), p. 223–237. doi: 10.1007/s40259-017-0219-4.
  • Jahnsen, Jørgen & Jørgensen, Kristin Kaasen (2017). Experience with Biosimilar Infliximab (Remsima?) in Norway. Digestive Diseases. ISSN 0257-2753. 35(1-2), p. 83–90. doi: 10.1159/000449088.
  • Huppertz-Hauss, Gert; Høivik, Marte; Jelsness-Jørgensen, Lars-Petter; Opheim, Randi; Henriksen, Magne & Høie, Ole Ingebreth [Show all 13 contributors for this article] (2017). Fatigue in a population-based cohort of patients with inflammatory bowel disease 20 years after diagnosis: The IBSEN study. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 52(3), p. 351–358. doi: 10.1080/00365521.2016.1256425.
  • Jelsness-Jørgensen, Lars-Petter; Frigstad, Svein Oskar; Moum, Bjørn; Grimstad, Tore; Opheim, Randi & Jahnsen, Jørgen [Show all 7 contributors for this article] (2017). Pain may be an important factor to consider in inflammatory bowel disease patients troubled by fatigue. United European Gastroenterology Journal (UEG Journal). ISSN 2050-6406. 5(5), p. 687–693. doi: 10.1177/2050640616674654.
  • Frigstad, Svein Oskar; Høivik, Marte; Jahnsen, Jørgen; Dahl, Sandra Rinne; Småstuen, Milada C & Grimstad, Tore [Show all 13 contributors for this article] (2017). Vitamin D deficiency in inflammatory bowel disease: Prevalence and predictors in a Norwegian outpatient population. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 52(1), p. 100–106. doi: 10.1080/00365521.2016.1233577.
  • Jahnsen, Jørgen (2016). Clinical experience with infliximab biosimilar Remsima (CT-P13) in inflammatory bowel disease patients. Therapeutic Advances in Gastroenterology. ISSN 1756-283X. 9(3), p. 322–329. doi: 10.1177/1756283X16636764.
  • Ventham, NT; Kennedy, NA; Adams, AT; Kalla, R; Heath, S & O'Leary, KR [Show all 107 contributors for this article] (2016). Integrative epigenome-wide analysis demonstrates that DNA methylation may mediate genetic risk in inflammatory bowel disease. Nature Communications. ISSN 2041-1723. 7. doi: 10.1038/ncomms13507.
  • Moen, Aina Elisabeth Fossum; Tannæs, Tone Møller; Vatn, Simen Svendsen; Ricanek, Petr; Vatn, Morten H & Jahnsen, Jørgen [Show all 7 contributors for this article] (2016). Simultaneous purification of DNA and RNA from microbiota in a single colonic mucosal biopsy. BMC Research Notes. ISSN 1756-0500. 9(328). doi: 10.1186/s13104-016-2110-7.
  • Kapica, Aida; Hov, Johannes Espolin Roksund; Borthne, Arne Sigmund; Gleditsch, Jostein; Johannesen, Glenn & Tveit, Knut [Show all 19 contributors for this article] (2016). Prevalence of Sclerosing Cholangitis Detected by Magnetic Resonance Cholangiography in Patients With Long-term Inflammatory Bowel Disease. Gastroenterology. ISSN 0016-5085. 151(4), p. 660–669. doi: 10.1053/j.gastro.2016.06.021.
  • Jelsness-Jørgensen, Lars-Petter; Moum, Bjørn; Grimstad, Tore; Jahnsen, Jørgen; Opheim, Randi & Berset, Ingrid Prytz [Show all 11 contributors for this article] (2016). Validity, reliability, and responsiveness of the brief pain inventory in inflammatory bowel disease. Canadian Journal of Gastroenterology and Hepatology. ISSN 2291-2789. 2016:5624261. doi: 10.1155/2016/5624261.
  • Huppertz-Hauss, Gert; Høivik, Marte; Jelsness-Jørgensen, Lars-Petter; Henriksen, Magne; Høie, Ole Ingebreth & Jahnsen, Jørgen [Show all 9 contributors for this article] (2016). Health-related quality of life in patients with inflammatory bowel disease 20 years after diagnosis: results from the IBSEN study. Inflammatory Bowel Diseases. ISSN 1078-0998. 22(7), p. 1679–1687. doi: 10.1097/MIB.0000000000000806.
  • Hovde, Øistein; Småstuen, Milada C; Høivik, Marte; Bernklev, Tomm; Huppertz-Hauss, Gert & Høie, Ole Ingebreth [Show all 11 contributors for this article] (2016). Mortality and Causes of Death in Ulcerative Colitis: Results from 20 Years of Follow-up in the IBSEN Study. Inflammatory Bowel Diseases. ISSN 1078-0998. 22(1), p. 141–145. doi: 10.1097/MIB.0000000000000582.
  • Jahnsen, Jørgen; Detlie, Trond Espen; Vatn, Simen Svendsen & Ricanek, Petr (2015). Biosimilar infliximab (CT-P13) in the treatment of inflammatory bowel disease: A Norwegian observational study. Expert Review of Gastroenterology & Hepatology. ISSN 1747-4124. 9, p. S45–S52. doi: 10.1586/17474124.2015.1091308.
  • Danilova, Elena; Skrindo, Ingebjørg; Gran, Einar; Hales, B. J.; Smith, W. A. & Jahnsen, Jørgen [Show all 9 contributors for this article] (2015). A role for CCL28-CCR3 in T-cell homing to the human upper airway mucosa. Mucosal Immunology. ISSN 1933-0219. 8(1), p. 107–114. doi: 10.1038/mi.2014.46.

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  • Syversen, Silje Watterdal; Jahnsen, Jørgen & Haavardsholm, Espen A. (2022). Therapeutic Drug Monitoring vs Standard Therapy During Maintenance Infliximab Therapy and Control of Immune-Mediated Inflammatory Diseases-Reply. Journal of the American Medical Association (JAMA). ISSN 0098-7484. 327(15), p. 1506–1507. doi: 10.1001/jama.2022.2938.
  • Bjørlykke, Kristin Hammersbøen; Eftang, Lars Lohne; Grzyb, Krzysztof; Line, Pål Dag; Lassen, Kristoffer & Jahnsen, Jørgen (2020). A man in his fifties with abdominal pain, itching and weight loss. Tidsskrift for Den norske legeforening. ISSN 0029-2001. doi: 10.4045/tidsskr.19.0390.
  • Kim, HoUng; Alten, Rieke; Avedano, Luisa; Dignass, Axel; Gomollón, Fernando & Greveson, Kay [Show all 19 contributors for this article] (2020). Correction to: The Future of Biosimilars: Maximizing Benefits Across Immune-Mediated Inflammatory Diseases. Drugs. ISSN 0012-6667. 80(10), p. 1039–1040. doi: 10.1007/s40265-020-01333-9.
  • Detlie, Trond Espen & Jahnsen, Jørgen (2020). Editorial: improving precision of iron deficiency diagnosis in inflammatory bowel disease. Alimentary Pharmacology and Therapeutics. ISSN 0269-2813. 52(2). doi: 10.1111/apt.15809.
  • Mortensen, Joachim Høg; Lunder, Aida Kapic; Manon-Jensen, Tina; Karsdal, MA; Nielsen, Mette & Leeming, DJ [Show all 13 contributors for this article] (2020). P117 Biomarkers of extracellular matrix remodelling are associated with intestinal fibrosis assessed by magnetic resonance enterography and accumulated intestinal damage (Lémann index): the IBSEN study.
  • Detlie, Trond Espen & Jahnsen, Jørgen (2019). Editorial: awareness and prevention of intravenous iron-induced hypophosphataemia. Authors' reply. Alimentary Pharmacology and Therapeutics. ISSN 0269-2813. 50(5), p. 610–611. doi: 10.1111/apt.15443.
  • Opheim, Randi; Jahnsen, Jørgen; Bernklev, Tomm; Høie, Ole Ingebreth; Huppertz-Hauss, Gert & Moum, Bjørn (2019). Complementary and alternative medicine in patients with inflammatory bowel disease 20 years after diagnosis: Results from the IBSEN study. American Journal of Gastroenterology. ISSN 0002-9270. 114, p. S12–S13. doi: 10.14309/01.ajg.0000578256.56976.23.
  • Kristensen, Vendel Ailin; Valeur, Jørgen; Brackmann, Stephan; Jahnsen, Jørgen & Tveito, Kari (2019). Kognitive symptomer hos pasienter med cøliaki før og etter glutenfri kost.
  • Opheim, Randi; Bernklev, Tomm; Jahnsen, Jørgen; Grimstad, Tore; Hovde, Øistein & Berset, Ingrid Prytz [Show all 8 contributors for this article] (2018). Chronic fatigue in patients with inflammatory bowel disease is associated with lower health–related quality of life, low self-esteem, increased anxiety and depression.
  • Moen, Aina Elisabeth Fossum; Lindstrøm, Jonas Christoffer; Tannæs, Tone Møller; Vatn, Simen Svendsen; Vatn, Morten H & Jahnsen, Jørgen [Show all 8 contributors for this article] (2018). Microbial expression in biopsies from ulcerative colitis at the time of diagnosis: bacterial activity is unrelated to abundancy.
  • Lunder, Aida Kapic; Bakstad T, Linda; Kapica, Aida; Jahnsen, Jørgen; Hov, Johannes Espolin Roksund & Borthne, Arne Sigmund [Show all 8 contributors for this article] (2018). Assessment of Inflammation by Magnetic Resonance Enterography in Long-term Crohn´s Disease .
  • Jørgensen, Kristin Kaasen; Inge Christoffer, Olsen; Goll, Guro Løvik; Lorentzen, Merete; Bolstad, Nils & Berset, Ingrid Prytz [Show all 11 contributors for this article] (2017). Biosimilar infliximab (CT-P13) is not inferior to originator infliximab: explorative IBD subgroup-analyses in Crohn’s disease and ulcerative colitis from the NOR-SWITCH trial. Journal of Crohn's and Colitis. ISSN 1873-9946. 11, p. 62–63. doi: 10.1093/ecco-jcc/jjx002.099.
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Jahnsen, Jørgen; Dahl, Sandra Rinne; Cvancarova, Milada & Grimstad, Tore [Show all 13 contributors for this article] (2017). Vitamin D deficiency is not associated with depression in IBD patients. Journal of Crohn's and Colitis. ISSN 1873-9946. 11, p. 444–445. doi: 10.1093/ecco-jcc/jjx002.834.
  • Jørgensen, Kristin Kaasen; Lundin, Knut Erik Aslaksen; Olsen, Inge Christoffer; Kvien, Tore Kristian & Jahnsen, Jørgen (2017). Efficacy of infliximab biosimilars in patients with Crohn's disease - Authors' reply. The Lancet. ISSN 0140-6736. 390(10111), p. 2436–2436. doi: 10.1016/S0140-6736(17)32463-7.
  • Moen, Aina Elisabeth Fossum; Lindstrøm, Jonas Christoffer; Tannæs, Tone Møller; Vatn, Simen Svendsen; Ricanek, Petr & Vatn, Morten H [Show all 8 contributors for this article] (2017). The most active members of the inflamed mucosal-associated microbiota are not the most abundant in ulcerative colitis patients.
  • Jørgensen, Kristin Kaasen; Inge Christoffer, Olsen; Goll, Guro Løvik; Lorentzen, Merete; Bolstad, Nils & Berset, Ingrid Prytz [Show all 11 contributors for this article] (2017). Biosimilar Infliximab (CT-P13) is not Inferior to Originator Infliximab: Explorative IBD Subgroup-Analyses in Crohn's Disease and Ulcerative Colitis from the Nor-Switch Trial. Gastroenterology. ISSN 0016-5085. 152(5), p. 65–66. doi: 10.1016/S0016-5085(17)30572-3.
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Jahnsen, Jørgen; Småstuen, Milada C; Grimstad, Tore & Berset, Ingrid Prytz [Show all 12 contributors for this article] (2017). Fatigue is not Associated with Vitamin D Deficiency in IBD Patients. Gastroenterology. ISSN 0016-5085. 152(5). doi: 10.1016/S0016-5085(17)33218-3.
  • Lunder, Aida Kapic; Jahnsen, Jørgen; Bakstad T, Linda; Borthne, Arne Sigmund; Hov, Johannes Espolin Roksund & Vatn, Morten H [Show all 7 contributors for this article] (2017). Long-term Crohn's Disease Assessed by Magnetic Resonance Enterography and Lemann Index: Disease Extent and Bowel Damage in a Population Based Cohort.
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Småstuen, Milada C; Jahnsen, Jørgen; Dahl, Sandra Rinne & Berset, Ingrid Prytz [Show all 13 contributors for this article] (2017). Fatigue er ikke assosiert med vitamin D mangel hos IBD pasienter.
  • Frigstad, Svein Oskar; Bernklev, Tomm; Dahl, Sandra Rinne; Hovde, Øistein; Jahnsen, Jørgen & Grimstad, Tore [Show all 10 contributors for this article] (2017). Vitamin D deficiency is not associated with chronic fatigue in inflammatory bowel disease.
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Moum, Bjørn; Dahl, Sandra Rinne; Jahnsen, Jørgen & Småstuen, Milada Cvancarova [Show all 12 contributors for this article] (2017). Vitamin D deficiency is not associated with depression in IBD patients.
  • Moen, Aina Elisabeth Fossum; Tannæs, Tone Møller; Kennedy, NA; Rudi, Knut; Vatn, Morten H & Jahnsen, Jørgen [Show all 7 contributors for this article] (2015). Comparison of 16S rDNA and rRNA datasets for characterization of the mucosal microbiota in patients with ulcerative colitis.
  • Moen, Aina Elisabeth Fossum; Tannæs, Tone Møller; Kennedy, Nicholas A; Rudi, Knut; Vatn, Morten H & Jahnsen, Jørgen (2015). Comparison of 16S rDNA and rRNA datasets for characterization of the mucosal microbiota in patients with ulcerative colitis.
  • Negard, Anne; Redalen, Kathrine Røe; Jahnsen, Jørgen; Færden, Arne Engebret; Ree, Anne Hansen & Vatn, Morten H (2014). Crohns disease and secondary malignancy: Morphological findings with MRI and CT and how novel functional MR sequences can improve diagnostics.

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Published Apr. 25, 2013 3:06 PM - Last modified June 19, 2017 2:49 PM