Jørgen Jahnsen
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Author network for Jørgen Jahnsen by COREMINE medical


Publications 2017

Jahnsen J, Kaasen Jørgensen K (2017)
Experience with Biosimilar Infliximab (Remsima®) in Norway
Dig Dis, 35 (1-2), 83-90
PubMed 28147374

Jørgensen KK, Olsen IC, Goll GL, Lorentzen M, Bolstad N, Haavardsholm EA, Lundin KEA, Mørk C, Jahnsen J, Kvien TK, NOR-SWITCH study group (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
Lancet, 389 (10086), 2304-2316
PubMed 28502609

Lunder AK, Jahnsen J, Bakstad LT, Borthne A, Hov JR, Vatn M, Negård A, IBSEN Study Group (2017)
Bowel Damage in Patients With Long-term Crohn`s Disease, Assessed by Magnetic Resonance Enterography and the Lemann Index
Clin Gastroenterol Hepatol (in press)
PubMed 28694130

Ráki M, Dahal-Koirala S, Yu H, Korponay-Szabó IR, Gyimesi J, Castillejo G, Jahnsen J, Qiao SW, Sollid LM (2017)
Similar Responses of Intestinal T-cells From Untreated Children and Adults With Celiac Disease to Deamidated Gluten Epitopes
Gastroenterology (in press)
PubMed 28535873

Reinisch W, Jahnsen J, Schreiber S, Danese S, Panés J, Balsa A, Park W, Kim J, Lee JU, Yoo DH (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, 31 (3), 223-237
PubMed 28497221

Publications 2016

Frigstad SO, Høivik M, Jahnsen J, Dahl SR, Cvancarova M, Grimstad T, Berset IP, Huppertz-Hauss G, Hovde Ø, Torp R, Bernklev T, Moum B, Jelsness-Jørgensen LP (2016)
Vitamin D deficiency in inflammatory bowel disease: prevalence and predictors in a Norwegian outpatient population
Scand J Gastroenterol, 52 (1), 100-106
PubMed 27603182

Hovde Ø, Småstuen MC, Høivik ML, Bernklev T, Huppertz-Hauss G, Høie O, Jahnsen J, Stray N, Henriksen M, Solberg IC, Moum BA (2016)
Mortality and Causes of Death in Ulcerative Colitis: Results from 20 Years of Follow-up in the IBSEN Study
Inflamm Bowel Dis, 22 (1), 141-5
PubMed 26355464

Huppertz-Hauss G, Høivik ML, Jelsness-Jørgensen LP, Opheim R, Henriksen M, Høie O, Hovde Ø, Kempski-Monstad I, Solberg IC, Jahnsen J, Hoff G, Moum B, Bernklev T (2016)
Fatigue in a population-based cohort of patients with inflammatory bowel disease 20 years after diagnosis: The IBSEN study
Scand J Gastroenterol, 52 (3), 351-358
PubMed 27852169

Huppertz-Hauss G, Lie Høivik M, Jelsness-Jørgensen LP, Henriksen M, Høie O, Jahnsen J, Hoff G, Moum B, Bernklev T (2016)
Health-related Quality of Life in Patients with Inflammatory Bowel Disease 20 Years After Diagnosis: Results from the IBSEN Study
Inflamm Bowel Dis, 22 (7), 1679-87
PubMed 27206016

Jahnsen J (2016)
Clinical experience with infliximab biosimilar Remsima (CT-P13) in inflammatory bowel disease patients
Therap Adv Gastroenterol, 9 (3), 322-9
PubMed 27134662

Jelsness-Jørgensen LP, Moum B, Grimstad T, Jahnsen J, Opheim R, Prytz Berset I, Hovde Ø, Torp R, Frigstad SO, Huppertz-Hauss G, Bernklev T (2016)
Validity, Reliability, and Responsiveness of the Brief Pain Inventory in Inflammatory Bowel Disease
Can J Gastroenterol Hepatol, 2016, 5624261
PubMed 27446848

Lunder AK, Hov JR, Borthne A, Gleditsch J, Johannesen G, Tveit K, Viktil E, Henriksen M, Hovde Ø, Huppertz-Hauss G, Høie O, Høivik ML, Monstad I, Solberg IC, Jahnsen J, Karlsen TH, Moum B, Vatn M, Negård A (2016)
Prevalence of Sclerosing Cholangitis Detected by Magnetic Resonance Cholangiography in Patients With Long-term Inflammatory Bowel Disease
Gastroenterology, 151 (4), 660-669.e4
PubMed 27342213

Moen AE, Tannæs TM, Vatn S, Ricanek P, Vatn MH, Jahnsen J, IBD-Character Consortium (2016)
Simultaneous purification of DNA and RNA from microbiota in a single colonic mucosal biopsy
BMC Res Notes, 9, 328
PubMed 27352784

Publications 2015

Jahnsen J, Detlie TE, Vatn S, Ricanek P (2015)
Biosimilar infliximab (CT-P13) in the treatment of inflammatory bowel disease: A Norwegian observational study
Expert Rev Gastroenterol Hepatol, 9 Suppl 1, 45-52
PubMed 26395534

Publications 2014

Christophersen A, Ráki M, Bergseng E, Lundin KE, Jahnsen J, Sollid LM, Qiao SW (2014)
Tetramer-visualized gluten-specific CD4+ T cells in blood as a potential diagnostic marker for coeliac disease without oral gluten challenge
United European Gastroenterol J, 2 (4), 268-78
PubMed 25083284

Danilova E, Skrindo I, Gran E, Hales BJ, Smith WA, Jahnsen J, Johansen FE, Jahnsen FL, Baekkevold ES (2014)
A role for CCL28-CCR3 in T-cell homing to the human upper airway mucosa
Mucosal Immunol, 8 (1), 107-14
PubMed 24917456

Steinsbø Ø, Henry Dunand CJ, Huang M, Mesin L, Salgado-Ferrer M, Lundin KE, Jahnsen J, Wilson PC, Sollid LM (2014)
Restricted VH/VL usage and limited mutations in gluten-specific IgA of coeliac disease lesion plasma cells
Nat Commun, 5, 4041
PubMed 24909383

Publications 2013

Bodd M, Ráki M, Bergseng E, Jahnsen J, Lundin KE, Sollid LM (2013)
Direct cloning and tetramer staining to measure the frequency of intestinal gluten-reactive T cells in celiac disease
Eur J Immunol, 43 (10), 2605-12
PubMed 23775608

De Vos M, Louis EJ, Jahnsen J, Vandervoort JG, Noman M, Dewit O, Dʼhaens GR, Franchimont D, Baert FJ, Torp RA, Henriksen M, Potvin PM, Van Hootegem PP, Hindryckx PM, Moreels TG, Collard A, Karlsen LN, Kittang E, Lambrecht G, Grimstad T, Koch J, Lygren I, Coche JC, Mana F, Van Gossum A et al. (2013)
Consecutive fecal calprotectin measurements to predict relapse in patients with ulcerative colitis receiving infliximab maintenance therapy
Inflamm Bowel Dis, 19 (10), 2111-7
PubMed 23883959

Hewitt S, Søvik TT, Aasheim ET, Kristinsson J, Jahnsen J, Birketvedt GS, Bøhmer T, Eriksen EF, Mala T (2013)
Secondary hyperparathyroidism, vitamin D sufficiency, and serum calcium 5 years after gastric bypass and duodenal switch
Obes Surg, 23 (3), 384-90
PubMed 23015268

Hovde Ø, Kempski-Monstad I, Småstuen MC, Solberg IC, Henriksen M, Jahnsen J, Stray N, Moum BA (2013)
Mortality and causes of death in Crohn's disease: results from 20 years of follow-up in the IBSEN study
Gut, 63 (5), 771-5
PubMed 23744613

Ráki M, Beitnes AC, Lundin KE, Jahnsen J, Jahnsen FL, Sollid LM (2013)
Plasmacytoid dendritic cells are scarcely represented in the human gut mucosa and are not recruited to the celiac lesion
Mucosal Immunol, 6 (5), 985-92
PubMed 23340820

Publications 2011

Beitnes AC, Ráki M, Lundin KE, Jahnsen J, Sollid LM, Jahnsen FL (2011)
Density of CD163+ CD11c+ dendritic cells increases and CD103+ dendritic cells decreases in the coeliac lesion
Scand J Immunol, 74 (2), 186-94
PubMed 21392045

Boye B, Lundin KE, Jantschek G, Leganger S, Mokleby K, Tangen T, Jantschek I, Pripp AH, Wojniusz S, Dahlstroem A, Rivenes AC, Benninghoven D, Hausken T, Roseth A, Kunzendorf S, Wilhelmsen I, Sharpe M, Blomhoff S, Malt UF, Jahnsen J (2011)
INSPIRE study: does stress management improve the course of inflammatory bowel disease and disease-specific quality of life in distressed patients with ulcerative colitis or Crohn's disease? A randomized controlled trial
Inflamm Bowel Dis, 17 (9), 1863-73
PubMed 21287660

Høivik ML, Bernklev T, Solberg IC, Cvancarova M, Lygren I, Jahnsen J, Moum B, IBSEN Study Group (2011)
Patients with Crohn's disease experience reduced general health and vitality in the chronic stage: ten-year results from the IBSEN study
J Crohns Colitis, 6 (4), 441-53
PubMed 22398064

Publications 2010

Bengtson MB, Solberg IC, Aamodt G, Jahnsen J, Moum B, Vatn MH, IBSEN Study Group (2010)
Relationships between inflammatory bowel disease and perinatal factors: both maternal and paternal disease are related to preterm birth of offspring
Inflamm Bowel Dis, 16 (5), 847-55
PubMed 19795509

Moum B, Jahnsen J (2010)
[Obesity surgery in inflammatory bowel disease]
Tidsskr Nor Laegeforen, 130 (6), 638-9
PubMed 20349013

Moum B, Jahnsen J, Bernklev T (2010)
Fecal calprotectin variability in Crohn's disease
Inflamm Bowel Dis, 16 (7), 1091-2
PubMed 19834972

Publications 2009

Bengtson MB, Solberg C, Aamodt G, Jahnsen J, Moum B, Sauar J, Vatn MH, Ibsen Study Group (2009)
Clustering in time of familial IBD separates ulcerative colitis from Crohn's disease
Inflamm Bowel Dis, 15 (12), 1867-74
PubMed 19434721

Jahnsen J, Røseth AG, Aadland E (2009)
[Measurement of calprotectin in faeces]
Tidsskr Nor Laegeforen, 129 (8), 743-5
PubMed 19373299

Solberg IC, Lygren I, Cvancarova M, Jahnsen J, Stray N, Sauar J, Schreiber S, Moum B, Vatn MH, IBSEN Study Group (2009)
Predictive value of serologic markers in a population-based Norwegian cohort with inflammatory bowel disease
Inflamm Bowel Dis, 15 (3), 406-14
PubMed 19009607

Solberg IC, Lygren I, Jahnsen J, Aadland E, Høie O, Cvancarova M, Bernklev T, Henriksen M, Sauar J, Vatn MH, Moum B, IBSEN Study Group (2009)
Clinical course during the first 10 years of ulcerative colitis: results from a population-based inception cohort (IBSEN Study)
Scand J Gastroenterol, 44 (4), 431-40
PubMed 19101844

Publications 2008

Bengtson MB, Solberg C, Aamodt G, Sauar J, Jahnsen J, Moum B, Lygren I, Vatn MH, IBSEN study group (2008)
Familial aggregation in Crohn's disease and ulcerative colitis in a Norwegian population-based cohort followed for ten years
J Crohns Colitis, 3 (2), 92-9
PubMed 21172251

Boye B, Jahnsen J, Mokleby K, Leganger S, Jantschek G, Jantschek I, Kunzendorf S, Benninghoven D, Wilhelmsen I, Sharpe M, Blomhoff S, Malt UF, Lundin KE (2008)
The INSPIRE study: are different personality traits related to disease-specific quality of life (IBDQ) in distressed patients with ulcerative colitis and Crohn's disease?
Inflamm Bowel Dis, 14 (5), 680-6
PubMed 18509900

Boye B, Lundin KE, Leganger S, Mokleby K, Jantschek G, Jantschek I, Kunzendorf S, Benninghoven D, Sharpe M, Wilhelmsen I, Blomhoff S, Malt UF, Jahnsen J (2008)
The INSPIRE study: do personality traits predict general quality of life (Short form-36) in distressed patients with ulcerative colitis and Crohn's disease?
Scand J Gastroenterol, 43 (12), 1505-13
PubMed 18777439

Henriksen M, Jahnsen J, Lygren I, Stray N, Sauar J, Vatn MH, Moum B, IBSEN Study Group (2008)
C-reactive protein: a predictive factor and marker of inflammation in inflammatory bowel disease. Results from a prospective population-based study
Gut, 57 (11), 1518-23
PubMed 18566104

Aamodt G, Bukholm G, Jahnsen J, Moum B, Vatn MH, IBSEN Study Group (2008)
The association between water supply and inflammatory bowel disease based on a 1990-1993 cohort study in southeastern Norway
Am J Epidemiol, 168 (9), 1065-72
PubMed 18801890

Aamodt G, Jahnsen J, Bengtson MB, Moum B, Vatn MH, IBSEN Study Group (2008)
Geographic distribution and ecological studies of inflammatory bowel disease in southeastern Norway in 1990-1993
Inflamm Bowel Dis, 14 (7), 984-91
PubMed 18338775

Publications 2007

Frøslie KF, Jahnsen J, Moum BA, Vatn MH, IBSEN Group (2007)
Mucosal healing in inflammatory bowel disease: results from a Norwegian population-based cohort
Gastroenterology, 133 (2), 412-22
PubMed 17681162

Henriksen M, Jahnsen J, Lygren I, Vatn MH, Moum B, IBSEN Study Group (2007)
Are there any differences in phenotype or disease course between familial and sporadic cases of inflammatory bowel disease? Results of a population-based follow-up study
Am J Gastroenterol, 102 (9), 1955-63
PubMed 17573793

Henriksen M, Jahnsen J, Lygren I, Aadland E, Schulz T, Vatn MH, Moum B, Ibsen Study Group (2007)
Clinical course in Crohn's disease: results of a five-year population-based follow-up study (the IBSEN study)
Scand J Gastroenterol, 42 (5), 602-10
PubMed 17454881

Moum B, Konopski Z, Tufteland KF, Jahnsen J (2007)
Occurrence of hepatoxicicty and elevated liver enzymes in a Crohn's disease patient treated with infliximab
Inflamm Bowel Dis, 13 (12), 1584-6
PubMed 17663423

Olaussen RW, Karlsson MR, Lundin KE, Jahnsen J, Brandtzaeg P, Farstad IN (2007)
Reduced chemokine receptor 9 on intraepithelial lymphocytes in celiac disease suggests persistent epithelial activation
Gastroenterology, 132 (7), 2371-82
PubMed 17570212

Solberg IC, Vatn MH, Høie O, Stray N, Sauar J, Jahnsen J, Moum B, Lygren I, IBSEN Study Group (2007)
Clinical course in Crohn's disease: results of a Norwegian population-based ten-year follow-up study
Clin Gastroenterol Hepatol, 5 (12), 1430-8
PubMed 18054751

Publications 2006

Bernklev T, Jahnsen J, Henriksen M, Lygren I, Aadland E, Sauar J, Schulz T, Stray N, Vatn M, Moum B (2006)
Relationship between sick leave, unemployment, disability, and health-related quality of life in patients with inflammatory bowel disease
Inflamm Bowel Dis, 12 (5), 402-12
PubMed 16670530

Deressa E, Wammer AC, Falch JA, Jahnsen J (2006)
[Bone metabolism in patients with newly diagnosed caeliac disease]
Tidsskr Nor Laegeforen, 126 (9), 1201-4
PubMed 16670741

Henriksen M, Jahnsen J, Lygren I, Sauar J, Kjellevold Ø, Schulz T, Vatn MH, Moum B, IBSEN Study Group (2006)
Ulcerative colitis and clinical course: results of a 5-year population-based follow-up study (the IBSEN study)
Inflamm Bowel Dis, 12 (7), 543-50
PubMed 16804390

Henriksen M, Jahnsen J, Lygren I, Sauar J, Schulz T, Stray N, Vatn MH, Moum B, Ibsen Study Group (2006)
Change of diagnosis during the first five years after onset of inflammatory bowel disease: results of a prospective follow-up study (the IBSEN Study)
Scand J Gastroenterol, 41 (9), 1037-43
PubMed 16938716

Medici V, Mascheretti S, Croucher PJ, Stoll M, Hampe J, Grebe J, Sturniolo GC, Solberg C, Jahnsen J, Moum B, Schreiber S, Vatn MH (2006)
Extreme heterogeneity in CARD15 and DLG5 Crohn disease-associated polymorphisms between German and Norwegian populations
Eur J Hum Genet, 14 (4), 459-68
PubMed 16493449

Publications 2005

Bernklev T, Jahnsen J, Lygren I, Henriksen M, Vatn M, Moum B (2005)
Health-related quality of life in patients with inflammatory bowel disease measured with the short form-36: psychometric assessments and a comparison with general population norms
Inflamm Bowel Dis, 11 (10), 909-18
PubMed 16189421

Bernklev T, Jahnsen J, Schulz T, Sauar J, Lygren I, Henriksen M, Stray N, Kjellevold Ø, Aadland E, Vatn M, Moum B (2005)
Course of disease, drug treatment and health-related quality of life in patients with inflammatory bowel disease 5 years after initial diagnosis
Eur J Gastroenterol Hepatol, 17 (10), 1037-45
PubMed 16148548

Publications 2004

Bell H, Jahnsen J, Kittang E, Raknerud N, Sandvik L (2004)
Long-term prognosis of patients with alcoholic liver cirrhosis: a 15-year follow-up study of 100 Norwegian patients admitted to one unit
Scand J Gastroenterol, 39 (9), 858-63
PubMed 15513384

Bernklev T, Jahnsen J, Aadland E, Sauar J, Schulz T, Lygren I, Henriksen M, Stray N, Kjellevold O, Vatn M, Moum B, IBSEN Study Group (2004)
Health-related quality of life in patients with inflammatory bowel disease five years after the initial diagnosis
Scand J Gastroenterol, 39 (4), 365-73
PubMed 15125469

Jahnsen J, Falch JA, Mowinckel P, Aadland E (2004)
Bone mineral density in patients with inflammatory bowel disease: a population-based prospective two-year follow-up study
Scand J Gastroenterol, 39 (2), 145-53
PubMed 15000276

Størdal K, Jahnsen J, Bentsen BS, Moum B (2004)
Pediatric inflammatory bowel disease in southeastern Norway: a five-year follow-up study
Digestion, 70 (4), 226-30
PubMed 15627770

Winter TA, Wright J, Ghosh S, Jahnsen J, Innes A, Round P (2004)
Intravenous CDP870, a PEGylated Fab' fragment of a humanized antitumour necrosis factor antibody, in patients with moderate-to-severe Crohn's disease: an exploratory study
Aliment Pharmacol Ther, 20 (11-12), 1337-46
PubMed 15606396

Publications 2003

Jahnsen J, Falch JA, Mowinckel P, Aadland E (2003)
Body composition in patients with inflammatory bowel disease: a population-based study
Am J Gastroenterol, 98 (7), 1556-62
PubMed 12873577

Publications 2002

Farstad IN, Johansen FE, Vlatkovic L, Jahnsen J, Scott H, Fausa O, Bjørneklett A, Brandtzaeg P, Halstensen TS (2002)
Heterogeneity of intraepithelial lymphocytes in refractory sprue: potential implications of CD30 expression
Gut, 51 (3), 372-8
PubMed 12171959

Hampe J, Grebe J, Nikolaus S, Solberg C, Croucher PJ, Mascheretti S, Jahnsen J, Moum B, Klump B, Krawczak M, Mirza MM, Foelsch UR, Vatn M, Schreiber S (2002)
Association of NOD2 (CARD 15) genotype with clinical course of Crohn's disease: a cohort study
Lancet, 359 (9318), 1661-5
PubMed 12020527

Jahnsen J, Falch JA, Mowinckel P, Aadland E (2002)
Vitamin D status, parathyroid hormone and bone mineral density in patients with inflammatory bowel disease
Scand J Gastroenterol, 37 (2), 192-9
PubMed 11843057

Olaussen RW, Johansen FE, Lundin KE, Jahnsen J, Brandtzaeg P, Farstad IN (2002)
Interferon-gamma-secreting T cells localize to the epithelium in coeliac disease
Scand J Immunol, 56 (6), 652-64
PubMed 12472679

Publications 2001

Palm O, Moum B, Jahnsen J, Gran JT (2001)
Fibromyalgia and chronic widespread pain in patients with inflammatory bowel disease: a cross sectional population survey
J Rheumatol, 28 (3), 590-4
PubMed 11296964

Palm Ø, Moum B, Jahnsen J, Gran JT (2001)
The prevalence and incidence of peripheral arthritis in patients with inflammatory bowel disease, a prospective population-based study (the IBSEN study)
Rheumatology (Oxford), 40 (11), 1256-61
PubMed 11709609

Wurzer H, Bardhan KD, Marcelino M, Jahnsen J, Allmaier M (2001)
Duodenal ulcer healing rates in a one-year follow-up study with ranitidine bismuth citrate and antibiotics
Hepatogastroenterology, 48 (42), 1641-7
PubMed 11813591

Publications 2000

Haukeland JW, Jahnsen J, Raknerud N (2000)
[Carbamazepine-induced hepatitis]
Tidsskr Nor Laegeforen, 120 (24), 2875-7
PubMed 11143408

Publications 1999

Jahnsen J, Falch JA, Mowinckel P, Aadland E (1999)
Ultrasound measurements of calcaneus for estimation of skeletal status in patients with inflammatory bowel disease
Scand J Gastroenterol, 34 (8), 790-7
PubMed 10499480

Publications 1998

Bardhan KD, Wurzer H, Marcelino M, Jahnsen J, Lotay N, Roberts PM (1998)
Ranitidine bismuth citrate with clarithromycin given twice daily effectively eradicates Helicobacter pylori and heals duodenal ulcers
Am J Gastroenterol, 93 (3), 380-5
PubMed 9517644

Boberg KM, Aadland E, Jahnsen J, Raknerud N, Stiris M, Bell H (1998)
Incidence and prevalence of primary biliary cirrhosis, primary sclerosing cholangitis, and autoimmune hepatitis in a Norwegian population
Scand J Gastroenterol, 33 (1), 99-103
PubMed 9489916

Nilsen EM, Jahnsen FL, Lundin KE, Johansen FE, Fausa O, Sollid LM, Jahnsen J, Scott H, Brandtzaeg P (1998)
Gluten induces an intestinal cytokine response strongly dominated by interferon gamma in patients with celiac disease
Gastroenterology, 115 (3), 551-63
PubMed 9721152

Publications 1997

Jahnsen J, Falch JA, Aadland E (1997)
Bone mineral density in Crohn's disease - Reply
Gut, 41 (4), 579

Jahnsen J, Falch JA, Aadland E, Mowinckel P (1997)
Bone mineral density is reduced in patients with Crohn's disease but not in patients with ulcerative colitis: a population based study
Gut, 40 (3), 313-9
PubMed 9135518

Røseth AG, Aadland E, Jahnsen J, Raknerud N (1997)
Assessment of disease activity in ulcerative colitis by faecal calprotectin, a novel granulocyte marker protein
Digestion, 58 (2), 176-80
PubMed 9144308

Publications 1991

JAHNSEN J, VATN MH (1991)
2 CASES OF VITAMIN-D DEFICIENCY AND OSTEOMALACIA AFTER ABDOMINAL IRRADIATION
Eur. J. Gastroenterol. Hepatol., 3 (1), 97-98

Publications 1990

Jørgensen JJ, Lunde OC, Enge I, Jahnsen J, Lundbom J (1990)
[Chronic intestinal ischemia]
Tidsskr Nor Laegeforen, 110 (11), 1331-4
PubMed 2339376

Publications 1989

Jahnsen J, Vatn MH (1989)
[Radiation injury of the intestine]
Tidsskr Nor Laegeforen, 109 (25), 2557-8
PubMed 2814976