Jørgen Jahnsen

Bilde av Jørgen Jahnsen
English version of this page
Brukernavn
Besøksadresse Sykehusveien 25 1474 Nordbyhagen
Postadresse Akershus universitetssykehus 1478 Lørenskog

Publikasjoner

  • Vatn, Simen Svendsen; Lindstrøm, Jonas Christoffer; Moen, Aina Elisabeth Fossum; Brackmann, Stephan Andreas; Tannæs, Tone Møller & Olbjørn, Christine [Vis alle 19 forfattere av denne artikkelen] (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, s. 5–25. doi: 10.2147/CEG.S343468.
  • Christophersen, Asbjørn Otto; Dahal-Koirala, Shiva; Chlubnova, Marketa; Jahnsen, Jørgen; Lundin, Knut & Sollid, Ludvig Magne (2022). Phenotype-Based Isolation of Antigen-Specific CD4<sup>+</sup> T Cells in Autoimmunity: A Study of Celiac Disease. Advanced Science. ISSN 2198-3844. 9(10). doi: 10.1002/advs.202104766.
  • Espeland, Kristian; Kleinauskas, Andrius; Juzenas, Petras; Brech, Andreas; Darvekar, Sagar & Vasovic, Vlada [Vis alle 10 forfattere av denne artikkelen] (2022). Photodynamic Effects with 5-Aminolevulinic Acid on Cytokines and Exosomes in Human Peripheral Blood Mononuclear Cells. Biomedicines. 10(2). doi: 10.3390/biomedicines10020232.
  • Jelsness-Jørgensen, Lars-Petter; Moum, Bjørn Allan; Grimstad, Tore Bjørn; Jahnsen, Jørgen; Hovde, Øistein & Frigstad, Svein Oskar [Vis alle 7 forfattere av denne artikkelen] (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. doi: 10.1080/00365521.2022.2029939.
  • Bergemalm, Daniel; Andersson, Erik; Hultdin, Johan; Eriksson, Carl; Rush, Stephen T. & Kalla, Rahul [Vis alle 20 forfattere av denne artikkelen] (2021). Systemic Inflammation in Preclinical Ulcerative Colitis. Gastroenterology. ISSN 0016-5085. 161(5), s. 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 [Vis alle 26 forfattere av denne artikkelen] (2021). A Randomized Trial of a Transglutaminase 2 Inhibitor for Celiac Disease. New England Journal of Medicine. ISSN 0028-4793. 385(1), s. 35–45. doi: 10.1056/NEJMoa2032441. Fulltekst i vitenarkiv
  • Jyssum, Ingrid; Kared, Hassen; Tran, Trung; Tveter, Anne Therese; Provan, Sella Aarrestad & Sexton, Joseph [Vis alle 22 forfattere av denne artikkelen] (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%2821%2900394-5. Fulltekst i vitenarkiv
  • 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), s. 8–13.
  • Syversen, Silje Watterdal; Jørgensen, Kristin Kaasen; Goll, Guro Løvik; Brun, Marthe Kirkesæther; Sandanger, Øystein & Hammersbøen, Kristin Reine [Vis alle 33 forfattere av denne artikkelen] (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), s. 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 [Vis alle 8 forfattere av denne artikkelen] (2021). Treatment and outcome of gastrointestinal bleeding due to peptic ulcers and erosions–(BLUE study). Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 57(1), s. 8–15. doi: 10.1080/00365521.2021.1988701. Fulltekst i vitenarkiv
  • Christophersen, Asbjørn Otto; Zühlke, Stephanie; Lund, Eivind Gard; Snir, Omri; Dahal-Koirala, Shiva & Risnes, Louise Fremgaard [Vis alle 9 forfattere av denne artikkelen] (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), s. 1–11. doi: 10.1002/advs.202102778.
  • Frick, Rahel; Høydahl, Lene Støkken; Petersen, Jan; du Pré, Fleur; Kumari, Shraddha & Berntsen, Grete [Vis alle 20 forfattere av denne artikkelen] (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), s. 1–16. doi: 10.1126/sciimmunol.abg4925. Fulltekst i vitenarkiv
  • Detlie, Trond Espen; Jahnsen, Marte Eide; Jahnsen, Jørgen; Lindstrøm, Jonas Christoffer; Moum, Bjørn & Finnes, Elisabeth [Vis alle 7 forfattere av denne artikkelen] (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), s. 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 [Vis alle 33 forfattere av denne artikkelen] (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), s. 1744–1754. doi: 10.1001/jama.2021.4172.
  • Lindeman, Ida; Zhou, Chunyan; Eggesbø, Linn Margrethe; Miao, Zhichao; Polak, Justyna & Lundin, Knut Erik Aslaksen [Vis alle 10 forfattere av denne artikkelen] (2021). Longevity, clonal relationship, and transcriptional program of celiac disease-specific plasma cells. Journal of Experimental Medicine (JEM). ISSN 0022-1007. 218:e20200852(2), s. 1–16. doi: 10.1084/jem.20200852. Fulltekst i vitenarkiv
  • Reinisch, Walter; Gecse, Krisztina; Halfvarson, Jonas; Irving, Peter M.; Jahnsen, Jørgen & Peyrin-Biroulet, Laurent [Vis alle 9 forfattere av denne artikkelen] (2021). Clinical Practice of Adalimumab and Infliximab Biosimilar Treatment in Adult Patients With Crohn's Disease. Inflammatory Bowel Diseases. ISSN 1078-0998. 27(1), s. 106–122. doi: 10.1093/ibd/izaa078. Fulltekst i vitenarkiv
  • Monstad, Iril Lovise; Solberg, Inger Camilla; Småstuen, Milada Cvancarova; Hovde, Oistein; Henriksen, Magne & Huppertz-Hauss, Gert [Vis alle 12 forfattere av denne artikkelen] (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), s. 969–979. doi: 10.1093/ecco-jcc/jjaa232. Fulltekst i vitenarkiv
  • Syversen, Silje Watterdal; Goll, Guro Løvik; Jørgensen, Kristin Kaasen; Olsen, Inge Christoffer; Sandanger, Øystein & Gehin, Johanna Elin [Vis alle 13 forfattere av denne artikkelen] (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. Fulltekst i vitenarkiv
  • Vatn, Simen Svendsen; Carstens, Adam; Kristoffersen, Anja Bråthen; Bergemalm, Daniel; Casen, Christina & Moen, Aina Elisabeth Fossum [Vis alle 19 forfattere av denne artikkelen] (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), s. 1146–1156. doi: 10.1080/00365521.2020.1803396. Fulltekst i vitenarkiv
  • Kalla, Rahul; Adams, Alex T.; Ventham, Nicholas T.; Kennedy, Nicholas A.; White, R. & Clark, C [Vis alle 21 forfattere av denne artikkelen] (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), s. 1724–1733. doi: 10.1093/ecco-jcc/jjaa134. Fulltekst i vitenarkiv
  • Romstad, Kartine Maria Kauczynska; Detlie, Trond Espen; Søberg, Taran; Ricanek, Petr; Jahnsen, Marte Eide & Lerang, Frode [Vis alle 7 forfattere av denne artikkelen] (2020). Gastrointestinal bleeding due to peptic ulcers and erosions - a prospective observational study (BLUE study) . Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 55(10), s. 1139–1145. doi: 10.1080/00365521.2020.1819405. Fulltekst i vitenarkiv
  • 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), s. 409–416. doi: 10.1007/s40272-020-00396-1. Fulltekst i vitenarkiv
  • Hewitt, Stephen I; Kristinsson, Jon Adalsteinn; Aasheim, Erlend T.; Høgestøl, Ingvild Kristine; Aaseth, Eirik & Jahnsen, Jørgen [Vis alle 8 forfattere av denne artikkelen] (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), s. 3426–3434. doi: 10.1007/s11695-020-04582-5. Fulltekst i vitenarkiv
  • Kalla, Rahul; Adams, Alex T.; Bergemalm, Daniel; Vatn, Simen Svendsen; Kennedy, Nicholas A. & Ricanek, Petr [Vis alle 22 forfattere av denne artikkelen] (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. s. 1–33. doi: 10.1093/ecco-jcc/jjaa230. Fulltekst i vitenarkiv
  • Kim, HoUng; Alten, Rieke; Avedano, Luisa; Dignass, Axel; Gomollón, Fernando & Greveson, Kay [Vis alle 19 forfattere av denne artikkelen] (2020). The Future of Biosimilars: Maximizing Benefits Across Immune-Mediated Inflammatory Diseases. Drugs. ISSN 0012-6667. 80(2), s. 99–113. doi: 10.1007/s40265-020-01256-5. Fulltekst i vitenarkiv
  • Jørgensen, Kristin Kaasen; Goll, Guro Løvik; Sexton, Joseph; Bolstad, Nils; Olsen, Inge Christoffer & Asak, Øivind Wessel [Vis alle 29 forfattere av denne artikkelen] (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), s. 681–694. doi: 10.1007/s40259-020-00438-7. Fulltekst i vitenarkiv
  • Klepp, Pasquale Catherine; Brackmann, Stephan; Småstuen, Milada Cvancarova; Høivik, Marte Lie; Hovde, Øistein & Henriksen, Magne [Vis alle 15 forfattere av denne artikkelen] (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. Fulltekst i vitenarkiv
  • Opheim, Randi; Moum, Bjørn; Grimstad, Tore; Jahnsen, Jørgen; Berset, Ingrid Prytz & Hovde, Øistein [Vis alle 9 forfattere av denne artikkelen] (2020). Self-esteem in patients with inflammatory bowel disease. Quality of Life Research. ISSN 0962-9343. 29, s. 1839–1846 . doi: 10.1007/s11136-020-02467-9. Fulltekst i vitenarkiv
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Jahnsen, Jørgen; Småstuen, Milada C; Grimstad, Tore & Berset, Ingrid Prytz [Vis alle 11 forfattere av denne artikkelen] (2020). Pain Severity and Vitamin D Deficiency in IBD Patients. Nutrients. ISSN 2072-6643. 12(1), s. 1–12. doi: 10.3390/nu12010026. Fulltekst i vitenarkiv
  • Ossum, Alvilde Maria; Palm, Øyvind; Småstuen, Milada C; Bernklev, Tomm; Jahnsen, Jørgen & Moum, Bjørn [Vis alle 7 forfattere av denne artikkelen] (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. Fulltekst i vitenarkiv
  • 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. s. 1–14. doi: 10.1002/eji.201948253. Fulltekst i vitenarkiv
  • Detlie, Trond Espen; Lindstrøm, Jonas Christoffer; Jahnsen, Marte Eide; Finnes, Elisabeth; Zoller, Heinz & Moum, Bjørn [Vis alle 7 forfattere av denne artikkelen] (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), s. 397–406. doi: 10.1111/apt.15386. Fulltekst i vitenarkiv
  • Olbjørn, Christine; Småstuen, Milada Cvancarova; Thiis-Evensen, Espen; Nakstad, Britt; Vatn, Morten H & Jahnsen, Jørgen [Vis alle 20 forfattere av denne artikkelen] (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, s. 37–49. doi: 10.2147/CEG.S186235. Fulltekst i vitenarkiv
  • 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), s. 571–576. doi: 10.1080/00365521.2019.1608467.
  • Goll, Guro Løvik; Jørgensen, Kristin Kaasen; Sexton, Joseph; Olsen, Inge Christoffer; Bolstad, Nils & Haavardsholm, Espen A. [Vis alle 48 forfattere av denne artikkelen] (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), s. 653–669. doi: 10.1111/joim.12880. Fulltekst i vitenarkiv
  • Høydahl, Lene Støkken; Richter, Lisa Maria; Frick, Rahel; Snir, Omri; Gunnarsen, Kristin Støen & Landsverk, Ole J. B. [Vis alle 18 forfattere av denne artikkelen] (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), s. 1428–1439.e10. doi: 10.1053/j.gastro.2018.12.013. Fulltekst i vitenarkiv
  • Lunder, Aida Kapic; Bakstad, Linda Tøften; Jahnsen, Jørgen; Borthne, Arne Sigmund; Hov, Johannes Espolin Roksund & Vatn, Morten H [Vis alle 7 forfattere av denne artikkelen] (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), s. 607–614. doi: 10.1093/ecco-jcc/jjy208.
  • Kalla, Rahul; Boyapati, Ray; Vatn, Simen Svendsen; Hijos, Gonzalo; Crooks, Benjamin & Moore, Gregory Thomas [Vis alle 11 forfattere av denne artikkelen] (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), s. 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 [Vis alle 8 forfattere av denne artikkelen] (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. Fulltekst i vitenarkiv
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Jahnsen, Jørgen; Småstuen, Milada Cvancarova; Grimstad, Tore & Berset, Ingrid Prytz [Vis alle 11 forfattere av denne artikkelen] (2018). Fatigue is not associated with vitamin D deficiency in inflammatory bowel disease patients . World Journal of Gastroenterology (WJG). ISSN 1007-9327. 24(29), s. 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 [Vis alle 7 forfattere av denne artikkelen] (2018). Relationships of serum 25-hydroxyvitamin D, ionized calcium and parathyroid hormone after obesity surgery. Clinical Endocrinology. ISSN 0300-0664. 88(3), s. 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), s. 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 [Vis alle 7 forfattere av denne artikkelen] (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), s. 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 [Vis alle 9 forfattere av denne artikkelen] (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), s. 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. [Vis alle 10 forfattere av denne artikkelen] (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), s. 2304–2316. doi: 10.1016/S0140-6736%2817%2930068-5. Fulltekst i vitenarkiv
  • Reinisch, Walter W.; Jahnsen, Jørgen; Schreiber, Stefan; Danese, Silvio; Panés, Julián & Balsa, Alejandro [Vis alle 10 forfattere av denne artikkelen] (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), s. 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), s. 83–90. doi: 10.1159/000449088.
  • Huppertz-Hauss, Gert; Høivik, Marte; Jelsness-Jørgensen, Lars-Petter; Opheim, Randi; Henriksen, Magne & Høie, Ole Ingebreth [Vis alle 13 forfattere av denne artikkelen] (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), s. 351–358. doi: 10.1080/00365521.2016.1256425.
  • Jelsness-Jørgensen, Lars-Petter; Frigstad, Svein Oskar; Moum, Bjørn; Grimstad, Tore; Opheim, Randi & Jahnsen, Jørgen [Vis alle 7 forfattere av denne artikkelen] (2017). Pain may be an important factor to consider in inflammatory bowel disease patients troubled by fatigue. United European Gastroenterology journal. ISSN 2050-6406. 5(5), s. 687–693. doi: 10.1177/2050640616674654.
  • Frigstad, Svein Oskar; Høivik, Marte; Jahnsen, Jørgen; Dahl, Sandra Rinne; Småstuen, Milada C & Grimstad, Tore [Vis alle 13 forfattere av denne artikkelen] (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), s. 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), s. 322–329. doi: 10.1177/1756283X16636764.
  • Ventham, NT; Kennedy, NA; Adams, AT; Kalla, R; Heath, S & O'Leary, KR [Vis alle 107 forfattere av denne artikkelen] (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 [Vis alle 7 forfattere av denne artikkelen] (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 [Vis alle 19 forfattere av denne artikkelen] (2016). Prevalence of Sclerosing Cholangitis Detected by Magnetic Resonance Cholangiography in Patients With Long-term Inflammatory Bowel Disease. Gastroenterology. ISSN 0016-5085. 151(4), s. 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 [Vis alle 11 forfattere av denne artikkelen] (2016). Validity, reliability, and responsiveness of the brief pain inventory in inflammatory bowel disease. Canadian journal of gastroenterology & 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 [Vis alle 9 forfattere av denne artikkelen] (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), s. 1679–1687. doi: 10.1097/MIB.0000000000000806.
  • Hovde, Øistein; Småstuen, Milada C; Høivik, Marte; Bernklev, Tomm; Huppertz-Hauss, Gert & Høie, Ole Ingebreth [Vis alle 11 forfattere av denne artikkelen] (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), s. 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, s. S45–S52. doi: 10.1586/17474124.2015.1091308.
  • Danilova, Elena; Skrindo, Ingebjørg; Gran, Einar; Hales, B. J.; Smith, W. A. & Jahnsen, Jørgen [Vis alle 9 forfattere av denne artikkelen] (2015). A role for CCL28-CCR3 in T-cell homing to the human upper airway mucosa. Mucosal Immunology. ISSN 1933-0219. 8(1), s. 107–114. doi: 10.1038/mi.2014.46.
  • Christophersen, Asbjørn; Raki, Melinda; Bergseng, Elin; Lundin, Knut E A; Jahnsen, Jørgen & Sollid, Ludvig Magne [Vis alle 7 forfattere av denne artikkelen] (2014). Tetramer-visualized gluten-specific CD4+ T cells in blood as a potential diagnostic marker for coeliac disease without oral gluten challenge. United European Gastroenterology journal. ISSN 2050-6406. 2(4), s. 268–278. doi: 10.1177/2050640614540154.
  • Steinsbø, Øyvind; Dunand, Carole J.Henry; Huang, Min; Mesin, Luka; Salgado-Ferrer, Marlene & Lundin, Knut E A [Vis alle 9 forfattere av denne artikkelen] (2014). Restricted VH/VL usage and limited mutations in gluten-specific IgA of coeliac disease lesion plasma cells. Nature Communications. ISSN 2041-1723. 5. doi: 10.1038/ncomms5041.
  • Hovde, Øistein; Kempski-Monstad, Iril Lovise; Småstuen, Milada Cvancarova; Solberg, Inger Camilla; Henriksen, Magne & Jahnsen, Jørgen [Vis alle 8 forfattere av denne artikkelen] (2014). Mortality and causes of death in Crohn's disease: Results from 20 years of follow-up in the IBSEN study. Gut. ISSN 0017-5749. 63(5), s. 771–775. doi: 10.1136/gutjnl-2013-304766.
  • De Vos, Martine; Louis, Edouard; Jahnsen, Jørgen; Vandervoort, JG; Noman, Maja & Dewit, Olivier [Vis alle 37 forfattere av denne artikkelen] (2013). Consecutive fecal calprotectin measurements to predict relapse in patients with ulcerative colitis receiving infliximab maintenance therapy. Inflammatory Bowel Diseases. ISSN 1078-0998. 19(10), s. 2111–2117. doi: 10.1097/MIB.0b013e31829b2a37.
  • Bodd, Michael; Raki, Melinda; Bergseng, Elin; Jahnsen, Jørgen; Lundin, Knut E A & Sollid, Ludvig Magne (2013). Direct cloning and tetramer staining to measure the frequency of intestinal gluten-reactive T cells in celiac disease. European Journal of Immunology. ISSN 0014-2980. 43(10), s. 2605–2612. doi: 10.1002/eji.201343382.
  • Raki, Melinda; Røberg Beitnes, Ann-Christin; Lundin, Knut E A; Jahnsen, Jørgen; Jahnsen, Frode Lars & Sollid, Ludvig Magne (2013). Plasmacytoid dendritic cells are scarcely represented in the human gut mucosa and are not recruited to the celiac lesion. Mucosal Immunology. ISSN 1933-0219. 6, s. 985–992. doi: 10.1038/mi.2012.136.
  • Hewitt, Stephen; Søvik, Torgeir Thorson; AASHEIM, ERLEND T.; Kristinsson, Jon Adalsteinn; Jahnsen, Jørgen & Birketvedt, Grethe [Vis alle 9 forfattere av denne artikkelen] (2013). Secondary Hyperparathyroidism, Vitamin D Sufficiency, and Serum Calcium 5 Years After Gastric Bypass and Duodenal Switch. Obesity Surgery. ISSN 0960-8923. 23(3), s. 384–390. doi: 10.1007/s11695-012-0772-3.
  • Høivik, Marte; Bernklev, Tomm; Solberg, Inger Camilla; Småstuen, Milada C; Lygren, Idar & Jahnsen, Jørgen [Vis alle 7 forfattere av denne artikkelen] (2012). Patients with Crohn's disease experience reduced general health and vitality in the chronic stage: Ten-year results from the IBSEN study. Journal - Crohn's and Colitis Foundation of Canada. ISSN 1197-4982. 6(4), s. 441–453. doi: 10.1016/j.crohns.2011.10.001.
  • Boye, Turid Birgitte; Lundin, Knut E A; Jantschek, Günter; Leganger, Siv; Møkleby, Kjell & Tangen, Tone [Vis alle 20 forfattere av denne artikkelen] (2011). INSPIRE Study: Does stress management improve the course of inflammatory bowel disease and disease-specific quality of life indDistressed patients with ulcerative colitis or Crohn's Disease? A randomized controlled trial. Inflammatory Bowel Diseases. ISSN 1078-0998. 17(9), s. 1863–1873. doi: 10.1002/ibd.21575.
  • Røberg Beitnes, Ann-Christin; Raki, Melinda; Lundin, Knut E A; Jahnsen, Jørgen; Sollid, Ludvig Magne & Jahnsen, Frode Lars (2011). Density of CD163(+)CD11c(+) Dendritic Cells Increases and CD103(+) Dendritic Cells Decreases in the Coeliac Lesion. Scandinavian Journal of Immunology. ISSN 0300-9475. 74(2), s. 186–194. doi: 10.1111/j.1365-3083.2011.02549.x.
  • Bengtson, May-Bente; Solberg, Inger Camilla; Aamodt, Geir; Jahnsen, Jørgen; Moum, Bjørn & Vatn, Morten H (2010). Relationships between inflammatory bowel disease and perinatal factors: Both maternal and paternal disease are related to preterm birth of offspring. Inflammatory Bowel Diseases. ISSN 1078-0998. 16(5), s. 847–855. doi: 10.1002/ibd.21120.
  • Jahnsen, Jørgen; Røseth, Arne & Aadland, Erling (2009). Måling av kalprotektin i feces. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 129(8), s. 743–745.
  • Solberg, Camilla; Lygren, Idar; Jahnsen, Jørgen; Aadland, Erling; Høie, Ole & Cvancarova, Milada [Vis alle 11 forfattere av denne artikkelen] (2009). Clinical course during the first 10 years of ulcerative colitis: results from a population-based inception cohort (IBSEN Study). Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 44(4), s. 431–440. doi: 10.1080/00365520802600961.

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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), s. 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 [Vis alle 19 forfattere av denne artikkelen] (2020). Correction to: The Future of Biosimilars: Maximizing Benefits Across Immune-Mediated Inflammatory Diseases. Drugs. ISSN 0012-6667. 80(10), s. 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 [Vis alle 13 forfattere av denne artikkelen] (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), s. 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, s. 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 [Vis alle 8 forfattere av denne artikkelen] (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 [Vis alle 8 forfattere av denne artikkelen] (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 [Vis alle 8 forfattere av denne artikkelen] (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 [Vis alle 11 forfattere av denne artikkelen] (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, s. 62–63. doi: 10.1093/ecco-jcc/jjx002.099.
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Jahnsen, Jørgen; Dahl, Sandra Rinne; Cvancarova, Milada & Grimstad, Tore [Vis alle 13 forfattere av denne artikkelen] (2017). Vitamin D deficiency is not associated with depression in IBD patients. Journal of Crohn's and Colitis. ISSN 1873-9946. 11, s. 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), s. 2436–2436. doi: 10.1016/S0140-6736%2817%2932463-7.
  • Moen, Aina Elisabeth Fossum; Lindstrøm, Jonas Christoffer; Tannæs, Tone Møller; Vatn, Simen Svendsen; Ricanek, Petr & Vatn, Morten H [Vis alle 8 forfattere av denne artikkelen] (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 [Vis alle 11 forfattere av denne artikkelen] (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), s. 65–66. doi: 10.1016/S0016-5085%2817%2930572-3.
  • Frigstad, Svein Oskar; Høivik, Marte Lie; Jahnsen, Jørgen; Småstuen, Milada C; Grimstad, Tore & Berset, Ingrid Prytz [Vis alle 12 forfattere av denne artikkelen] (2017). Fatigue is not Associated with Vitamin D Deficiency in IBD Patients. Gastroenterology. ISSN 0016-5085. 152(5). doi: 10.1016/S0016-5085%2817%2933218-3.
  • Lunder, Aida Kapic; Jahnsen, Jørgen; Bakstad T, Linda; Borthne, Arne Sigmund; Hov, Johannes Espolin Roksund & Vatn, Morten H [Vis alle 7 forfattere av denne artikkelen] (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 [Vis alle 13 forfattere av denne artikkelen] (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 [Vis alle 10 forfattere av denne artikkelen] (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 [Vis alle 12 forfattere av denne artikkelen] (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 [Vis alle 7 forfattere av denne artikkelen] (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.
  • Bernklev, Tomm; Huppertz-Hauss, Gert; Jelsness-Jørgensen, Lars-Petter; Høivik, Marte; Opheim, Randi & Jahnsen, Jørgen [Vis alle 7 forfattere av denne artikkelen] (2014). Chronic Fatigue Twenty Years After Diagnosis. Results from the IBSEN-Study. Inflammatory Bowel Diseases. ISSN 1078-0998. 20(12), s. 31–32. doi: 10.1097/01.MIB.0000456782.03905.38.
  • Danilova, Elena; Hoffmann, Christina; Skrindo, Ingebjørg; Gran, Einar; Jahnsen, Jørgen & Hales, B. [Vis alle 10 forfattere av denne artikkelen] (2012). A role for CCL28-CCR3 in T cell homing to the upper airway mucosa. Allergy. European Journal of Allergy and Clinical Immunology. ISSN 0105-4538. 67, s. 619–619.
  • Moum, Bjørn & Jahnsen, Jørgen (2010). Fedmekirurgi ved inflammatorisk tarmsykdom. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 130(6), s. 638–639.
  • Moum, Bjørn; Jahnsen, Jørgen & Bernklev, Tomm (2010). Fecal Calprotectin Variability in Crohn's Disease. Inflammatory Bowel Diseases. ISSN 1078-0998. 16(7), s. 1091–1092. doi: 10.1002/ibd.21136.

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Publisert 25. apr. 2013 15:03 - Sist endret 19. juni 2017 14:48

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