Tom Hemming Karlsen
Position: Research Head, MD, PhD
Phone: +47 23 07 36 16
Email:

EDUCATION

1997:                     MD University of Bergen

2007:                     PhD University of Oslo

 

NORWEGIAN CLINICAL SPECIALIST ACCREDITATIONS

"Indremedisin" (Internal medicine) and "Fordøyelsessykdommer" (Gastroenterology)

  PRESENT POSITIONS

  • Research Head, Division of Surgery, Inflammatory diseases and Transplantation, Oslo University Hospital.
  • Full professor of internal medicine, University of Oslo.
  • Senior consultant, Department of Transplantation Medicine, Oslo University Hospital Rikshospitalet.

RESEARCH GROUP

https://www.ous-research.no/nopsc/

http://www.med.uio.no/klinmed/english/research/groups/primary-sclerosing-cholangitis/

https://www.ous-research.no/riim/

 

SELECTED PUBLICATIONS 

Sampaziotis F, Justin AW, Tysoe OC et al. (2017) Reconstruction of the mouse extrahepatic biliary tree using primary human extrahepatic cholangiocyte organoids. Nature Medicine, 23, 954-963. 

Ji SG, Juran BD, Mucha S, et al. (2017) Genome-wide association study of primary sclerosing cholangitis identifies new risk loci and quantifies the genetic relationship with inflammatory bowel disease. Nature Genetics, 49, 269-273.

Wang J, Thingholm LB, Skiecevièienë J, et al. (2016) Genome-wide association analysis identifies variation in vitamin D receptor and other host factors influencing the gut microbiota. Nature Genetics, 48,1396-1406.

Ellinghaus D, Jostins L, Spain SL, et al. (2016) Analysis of five chronic inflammatory diseases identifies 27 new associations and highlights disease-specific patterns at shared loci. Nature Genetics, 48, 510-8.

Sampaziotis F, Cardoso de Brito M, Madrigal P, et al. (2015) Cholangiocytes derived from human induced pluripotent stem cells for disease modeling and drug validation. Nature Biotechnology, 33,845-52.

Goyette P, Boucher G, Mallon D, et al. (2015). High density mapping of the MHC reveals a common role for HLADRB1* 01:03 in IBD and heterozygous advantage in ulcerative colitis; Nature Genetics, 47 (2), 172-179.

Hirschfield GM, Karlsen TH, Lindor K, Adams D, (2013). Primary sclerosing cholangitisLancet, 382 (9904), 1587-99.

Liu JZ, Hov JR, Folseraas T, et al., (2013). Dense genotyping of immune-related disease regions identifies nine new risk loci for primary sclerosing cholangitis; Nature Genetics, 45 (6), 670-5.

Jostins L, Ripke S, Weersma RK, et al., (2012). Host-microbe interactions have shaped the genetic architecture of inflammatory bowel disease; Nature, 491 (7422), 119-24.

Anderson CA, Boucher G, Lees CW, et al., (2011). Meta-analysis identifies 29 additional ulcerative colitis risk loci, increasing the number of confirmed associations to 47; Nature Genetics, 43 (3), 246-52

Melum E, Franke A, Schramm C, et al., (2011). Genome-wide association analysis in primary sclerosing cholangitis identifies two non-HLA susceptibility loci; Nature Genetics, 43 (1), 17-9

Ellinghaus E, Ellinghaus D, Stuart PE, et al., (2010). Genome-wide association study identifies a psoriasis susceptibility locus at TRAF3IP2; Nature Genetics, 42 (11), 991-5

Franke A, Balschun T, Sina C, et al., (2010). Genome-wide association study for ulcerative colitis identifies risk loci at 7q22 and 22q13 (IL17REL); Nature Genetics, 42 (4), 292-4

Franke A, Balschun T, Karlsen TH, et al. (2008). Sequence variants in IL10, ARPC2 and multiple other loci contribute to ulcerative colitis susceptibility; Nature Genetics, 40 (11), 1319-23

Franke A, Balschun T, Karlsen TH, et al. (2008). Replication of signals from recent studies of Crohn's disease identifies previously unknown disease loci for ulcerative colitis; Nature Genetics, 40 (6), 713-5

 

 

 

Author network for Tom Hemming Karlsen by COREMINE medical


Publications 2017

Alberts R, de Vries EMG, Goode EC, Jiang X, Sampaziotis F, Rombouts K, Böttcher K, Folseraas T, Weismüller TJ, Mason AL, Wang W, Alexander G, Alvaro D, Bergquist A, Björkström NK, Beuers U, Björnsson E, Boberg KM, Bowlus CL, Bragazzi MC, Carbone M, Chazouillères O, Cheung A, Dalekos G, Eaton J et al. (2017)
Genetic association analysis identifies variants associated with disease progression in primary sclerosing cholangitis
Gut (in press)
PubMed 28779025

Chung BK, Karlsen TH (2017)
Genetic Discoveries Highlight Environmental Factors as Key Drivers of Liver Disease
Dig Dis, 35 (4), 323-333
PubMed 28468012

Chung BK, Karlsen TH, Folseraas T (2017)
Cholangiocytes in the pathogenesis of primary sclerosing cholangitis and development of cholangiocarcinoma
Biochim Biophys Acta (in press)
PubMed 28844951

Claussen JC, Skiecevičienė J, Wang J, Rausch P, Karlsen TH, Lieb W, Baines JF, Franke A, Hütt MT (2017)
Boolean analysis reveals systematic interactions among low-abundance species in the human gut microbiome
PLoS Comput Biol, 13 (6), e1005361
PubMed 28640804

de Vries EMG, Färkkilä M, Milkiewicz P, Hov JR, Eksteen B, Thorburn D, Chazouillères O, Pares A, Nygård S, Gilja OH, Wunsch E, Invernizzi P, Carbone M, Bernuzzi F, Boberg KM, Røsjø H, Rosenberg W, Beuers UH, Ponsioen CY, Karlsen TH, Vesterhus M (2017)
Enhanced liver fibrosis test predicts transplant-free survival in primary sclerosing cholangitis, a multi-centre study
Liver Int, 37 (10), 1554-1561
PubMed 28267887

Henriksen EKK, Viken MK, Wittig M, Holm K, Folseraas T, Mucha S, Melum E, Hov JR, Lazaridis KN, Juran BD, Chazouillères O, Färkkilä M, Gotthardt DN, Invernizzi P, Carbone M, Hirschfield GM, Rushbrook SM, Goode E, UK-PSC Consortium, Ponsioen CY, Weersma RK, Eksteen B, Yimam KK, Gordon SC, Goldberg D et al. (2017)
HLA haplotypes in primary sclerosing cholangitis patients of admixed and non-European ancestry
HLA, 90 (4), 228-233
PubMed 28695657

Jiang X, Karlsen TH (2017)
Genetics of primary sclerosing cholangitis and pathophysiological implications
Nat Rev Gastroenterol Hepatol, 14 (5), 279-295
PubMed 28293027

Karlsen TH, Folseraas T, Thorburn D, Vesterhus M (2017)
Primary sclerosing cholangitis - a comprehensive review
J Hepatol (in press)
PubMed 28802875

Koch M, Freitag-Wolf S, Schlesinger S, Borggrefe J, Hov JR, Jensen MK, Pick J, Markus MRP, Höpfner T, Jacobs G, Siegert S, Artati A, Kastenmüller G, Römisch-Margl W, Adamski J, Illig T, Nothnagel M, Karlsen TH, Schreiber S, Franke A, Krawczak M, Nöthlings U, Lieb W (2017)
Serum metabolomic profiling highlights pathways associated with liver fat content in a general population sample
Eur J Clin Nutr, 71 (8), 995-1001
PubMed 28378853

Maroni L, Hohenester SD, van de Graaf SFJ, Tolenaars D, van Lienden K, Verheij J, Marzioni M, Karlsen TH, Oude Elferink RPJ, Beuers U (2017)
Knockout of the primary sclerosing cholangitis-risk gene Fut2 causes liver disease in mice
Hepatology, 66 (2), 542-554
PubMed 28056490

Nordin A, Åberg F, Pukkala E, Pedersen CR, Storm HH, Rasmussen A, Bennet W, Olausson M, Wilczek H, Ericzon BG, Tretli S, Line PD, Karlsen TH, Boberg KM, Isoniemi H (2017)
Decreasing incidence of cancer after liver transplantation-A Nordic population-based study over 3 decades
Am J Transplant (in press)
PubMed 28925583

O'Hara SP, Karlsen TH, LaRusso NF (2017)
Cholangiocytes and the environment in primary sclerosing cholangitis: where is the link?
Gut, 66 (11), 1873-1877
PubMed 28733279

Rosati E, Dowds CM, Liaskou E, Henriksen EKK, Karlsen TH, Franke A (2017)
Overview of methodologies for T-cell receptor repertoire analysis
BMC Biotechnol, 17 (1), 61
PubMed 28693542

Rühlemann MC, Degenhardt F, Thingholm LB, Wang J, Skiecevičienė J, Rausch P, Hov JR, Lieb W, Karlsen TH, Laudes M, Baines JF, Heinsen FA, Franke A (2017)
Application of the distance-based F test in an mGWAS investigating β diversity of intestinal microbiota identifies variants in SLC9A8 (NHE8) and 3 other loci
Gut Microbes, 1-8 (in press)
PubMed 28816579

Sampaziotis F, Justin AW, Tysoe OC, Sawiak S, Godfrey EM, Upponi SS, Gieseck RL, de Brito MC, Berntsen NL, Gómez-Vázquez MJ, Ortmann D, Yiangou L, Ross A, Bargehr J, Bertero A, Zonneveld MCF, Pedersen MT, Pawlowski M, Valestrand L, Madrigal P, Georgakopoulos N, Pirmadjid N, Skeldon GM, Casey J, Shu W et al. (2017)
Reconstruction of the mouse extrahepatic biliary tree using primary human extrahepatic cholangiocyte organoids
Nat Med, 23 (8), 954-963
PubMed 28671689

Schrumpf E, Jiang X, Zeissig S, Pollheimer MJ, Anmarkrud JA, Tan C, Exley MA, Karlsen TH, Blumberg RS, Melum E (2017)
The role of natural killer T cells in a mouse model with spontaneous bile duct inflammation
Physiol Rep, 5 (4)
PubMed 28219981

Tronstad RR, Kummen M, Holm K, von Volkmann HL, Anmarkrud JA, Høivik ML, Moum B, Gilja OH, Hausken T, Baines J, Karlsen TH, Fiskerstrand T, Hov JR (2017)
Guanylate Cyclase C Activation Shapes the Intestinal Microbiota in Patients with Familial Diarrhea and Increased Susceptibility for Crohn's Disease
Inflamm Bowel Dis, 23 (10), 1752-1761
PubMed 28902124

Vesterhus M, Holm A, Hov JR, Nygård S, Schrumpf E, Melum E, Thorbjørnsen LW, Paulsen V, Lundin K, Dale I, Gilja OH, Zweers SJLB, Vatn M, Schaap FG, Jansen PLM, Ueland T, Røsjø H, Moum B, Ponsioen CY, Boberg KM, Färkkilä M, Karlsen TH, Lund-Johansen F (2017)
Novel serum and bile protein markers predict primary sclerosing cholangitis disease severity and prognosis
J Hepatol, 66 (6), 1214-1222
PubMed 28161472

Weismüller TJ, Trivedi PJ, Bergquist A, Imam M, Lenzen H, Ponsioen CY, Holm K, Gotthardt D, Färkkilä MA, Marschall HU, Thorburn D, Weersma RK, Fevery J, Mueller T, Chazouillères O, Schulze K, Lazaridis KN, Almer S, Pereira SP, Levy C, Mason A, Naess S, Bowlus CL, Floreani A, Halilbasic E et al. (2017)
Patient Age, Sex, and Inflammatory Bowel Disease Phenotype Associate With Course of Primary Sclerosing Cholangitis
Gastroenterology, 152 (8), 1975-1984.e8
PubMed 28274849

Witoelar A, Jansen IE, Wang Y, Desikan RS, Gibbs JR, Blauwendraat C, Thompson WK, Hernandez DG, Djurovic S, Schork AJ, Bettella F, Ellinghaus D, Franke A, Lie BA, McEvoy LK, Karlsen TH, Lesage S, Morris HR, Brice A, Wood NW, Heutink P, Hardy J, Singleton AB, Dale AM, Gasser T et al. (2017)
Genome-wide Pleiotropy Between Parkinson Disease and Autoimmune Diseases
JAMA Neurol, 74 (7), 780-792
PubMed 28586827

Aabakken L, Karlsen TH, Albert J, Arvanitakis M, Chazouilleres O, Dumonceau JM, Färkkilä M, Fickert P, Hirschfield GM, Laghi A, Marzioni M, Fernandez M, Pereira SP, Pohl J, Poley JW, Ponsioen CY, Schramm C, Swahn F, Tringali A, Hassan C (2017)
Role of endoscopy in primary sclerosing cholangitis: European Society of Gastrointestinal Endoscopy (ESGE) and European Association for the Study of the Liver (EASL) Clinical Guideline
Endoscopy, 49 (6), 588-608
PubMed 28420030

Publications 2016

Chung BK, Guevel BT, Reynolds GM, Gupta Udatha DB, Henriksen EK, Stamataki Z, Hirschfield GM, Karlsen TH, Liaskou E (2016)
Phenotyping and auto-antibody production by liver-infiltrating B cells in primary sclerosing cholangitis and primary biliary cholangitis
J Autoimmun, 77, 45-54
PubMed 27784538

Ellinghaus D, Jostins L, Spain SL, Cortes A, Bethune J, Han B, Park YR, Raychaudhuri S, Pouget JG, Hübenthal M, Folseraas T, Wang Y, Esko T, Metspalu A, Westra HJ, Franke L, Pers TH, Weersma RK, Collij V, D'Amato M, Halfvarson J, Jensen AB, Lieb W, Degenhardt F, Forstner AJ et al. (2016)
Analysis of five chronic inflammatory diseases identifies 27 new associations and highlights disease-specific patterns at shared loci
Nat Genet, 48 (5), 510-8
PubMed 26974007

Henriksen EK, Jørgensen KK, Kaveh F, Holm K, Hamm D, Olweus J, Melum E, Chung BK, Eide TJ, Lundin KE, Boberg KM, Karlsen TH, Hirschfield GM, Liaskou E (2016)
Gut and liver T-cells of common clonal origin in primary sclerosing cholangitis-inflammatory bowel disease
J Hepatol, 66 (1), 116-122
PubMed 27647428

Hov JR, Boberg KM, Taraldsrud E, Vesterhus M, Boyadzhieva M, Solberg IC, Schrumpf E, Vatn MH, Lie BA, Molberg Ø, Karlsen TH (2016)
Antineutrophil antibodies define clinical and genetic subgroups in primary sclerosing cholangitis
Liver Int, 37 (3), 458-465
PubMed 27558072

Jendrek ST, Gotthardt D, Nitzsche T, Widmann L, Korf T, Michaels MA, Weiss KH, Liaskou E, Vesterhus M, Karlsen TH, Mindorf S, Schemmer P, Bär F, Teegen B, Schröder T, Ehlers M, Hammers CM, Komorowski L, Lehnert H, Fellermann K, Derer S, Hov JR, Sina C (2016)
Anti-GP2 IgA autoantibodies are associated with poor survival and cholangiocarcinoma in primary sclerosing cholangitis
Gut, 66 (1), 137-144
PubMed 27406039

Ji SG, Juran BD, Mucha S, Folseraas T, Jostins L, Melum E, Kumasaka N, Atkinson EJ, Schlicht EM, Liu JZ, Shah T, Gutierrez-Achury J, Boberg KM, Bergquist A, Vermeire S, Eksteen B, Durie PR, Farkkila M, Müller T, Schramm C, Sterneck M, Weismüller TJ, Gotthardt DN, Ellinghaus D, Braun F et al. (2016)
Genome-wide association study of primary sclerosing cholangitis identifies new risk loci and quantifies the genetic relationship with inflammatory bowel disease
Nat Genet, 49 (2), 269-273
PubMed 27992413

Jørgensen SF, Macpherson ME, Bjøro K, Karlsen TH, Reims HM, Grzyb K, Fosby B, Fevang B, Aukrust P, Nordøy I (2016)
Liver transplantation in patients with primary antibody deficiency
J Allergy Clin Immunol, 139 (5), 1708-1710.e2
PubMed 27931972

Jørgensen SF, Reims HM, Frydenlund D, Holm K, Paulsen V, Michelsen AE, Jørgensen KK, Osnes LT, Bratlie J, Eide TJ, Dahl CP, Holter E, Tronstad RR, Hanevik K, Brattbakk HR, Kaveh F, Fiskerstrand T, Kran AB, Ueland T, Karlsen TH, Aukrust P, Lundin KE, Fevang B (2016)
A Cross-Sectional Study of the Prevalence of Gastrointestinal Symptoms and Pathology in Patients With Common Variable Immunodeficiency
Am J Gastroenterol, 111 (10), 1467-1475
PubMed 27527747

Jørgensen SF, Trøseid M, Kummen M, Anmarkrud JA, Michelsen AE, Osnes LT, Holm K, Høivik ML, Rashidi A, Dahl CP, Vesterhus M, Halvorsen B, Mollnes TE, Berge RK, Moum B, Lundin KE, Fevang B, Ueland T, Karlsen TH, Aukrust P, Hov JR (2016)
Altered gut microbiota profile in common variable immunodeficiency associates with levels of lipopolysaccharide and markers of systemic immune activation
Mucosal Immunol, 9 (6), 1455-1465
PubMed 26982597

Karlsen TH (2016)
Primary sclerosing cholangitis: 50 years of a gut-liver relationship and still no love?
Gut, 65 (10), 1579-81
PubMed 27402486

Kummen M, Holm K, Anmarkrud JA, Nygård S, Vesterhus M, Høivik ML, Trøseid M, Marschall HU, Schrumpf E, Moum B, Røsjø H, Aukrust P, Karlsen TH, Hov JR (2016)
The gut microbial profile in patients with primary sclerosing cholangitis is distinct from patients with ulcerative colitis without biliary disease and healthy controls
Gut, 66 (4), 611-619
PubMed 26887816

Kummen M, Vesterhus M, Trøseid M, Moum B, Svardal A, Boberg KM, Aukrust P, Karlsen TH, Berge RK, Hov JR (2016)
Elevated trimethylamine-N-oxide (TMAO) is associated with poor prognosis in primary sclerosing cholangitis patients with normal liver function
United European Gastroenterol J, 5 (4), 532-541
PubMed 28588885

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

Malenicka S, Ericzon BG, Jørgensen MH, Isoniemi H, Karlsen TH, Krantz M, Naeser V, Olausson M, Rasmussen A, Rönnholm K, Sanengen T, Scholz T, Fischler B, Nemeth A (2016)
Impaired intention-to-treat survival after listing for liver transplantation in children with biliary atresia compared to other chronic liver diseases: 20 years' experience from the Nordic countries
Pediatr Transplant, 21 (2)
PubMed 27957786

Maroni L, Agostinelli L, Saccomanno S, Pinto C, Giordano DM, Rychlicki C, De Minicis S, Trozzi L, Banales JM, Melum E, Karlsen TH, Benedetti A, Baroni GS, Marzioni M (2016)
Nlrp3 Activation Induces Il-18 Synthesis and Affects the Epithelial Barrier Function in Reactive Cholangiocytes
Am J Pathol, 187 (2), 366-376
PubMed 27912077

Schrumpf E, Kummen M, Valestrand L, Greiner TU, Holm K, Arulampalam V, Reims HM, Baines J, Bäckhed F, Karlsen TH, Blumberg RS, Hov JR, Melum E (2016)
The gut microbiota contributes to a mouse model of spontaneous bile duct inflammation
J Hepatol, 66 (2), 382-389
PubMed 27720803

Skagen K, Trøseid M, Ueland T, Holm S, Abbas A, Gregersen I, Kummen M, Bjerkeli V, Reier-Nilsen F, Russell D, Svardal A, Karlsen TH, Aukrust P, Berge RK, Hov JE, Halvorsen B, Skjelland M (2016)
The Carnitine-butyrobetaine-trimethylamine-N-oxide pathway and its association with cardiovascular mortality in patients with carotid atherosclerosis
Atherosclerosis, 247, 64-9
PubMed 26868510

Saadati HR, Wittig M, Helbig I, Häsler R, Anderson CA, Mathew CG, Kupcinskas L, Parkes M, Karlsen TH, Rosenstiel P, Schreiber S, Franke A (2016)
Genome-wide rare copy number variation screening in ulcerative colitis identifies potential susceptibility loci
BMC Med Genet, 17, 26
PubMed 27037036

Wang J, Thingholm LB, Skiecevičienė J, Rausch P, Kummen M, Hov JR, Degenhardt F, Heinsen FA, Rühlemann MC, Szymczak S, Holm K, Esko T, Sun J, Pricop-Jeckstadt M, Al-Dury S, Bohov P, Bethune J, Sommer F, Ellinghaus D, Berge RK, Hübenthal M, Koch M, Schwarz K, Rimbach G, Hübbe P et al. (2016)
Genome-wide association analysis identifies variation in vitamin D receptor and other host factors influencing the gut microbiota
Nat Genet, 48 (11), 1396-1406
PubMed 27723756

Yokoyama JS, Wang Y, Schork AJ, Thompson WK, Karch CM, Cruchaga C, McEvoy LK, Witoelar A, Chen CH, Holland D, Brewer JB, Franke A, Dillon WP, Wilson DM, Mukherjee P, Hess CP, Miller Z, Bonham LW, Shen J, Rabinovici GD, Rosen HJ, Miller BL, Hyman BT, Schellenberg GD, Karlsen TH et al. (2016)
Association Between Genetic Traits for Immune-Mediated Diseases and Alzheimer Disease
JAMA Neurol, 73 (6), 691-7
PubMed 27088644

Zenouzi R, Weismüller TJ, Jørgensen KK, Bubenheim M, Lenzen H, Hübener P, Schulze K, Weiler-Normann C, Sebode M, Ehlken H, Pannicke N, Hartl J, Peiseler M, Hübener S, Karlsen TH, Boberg KM, Manns MP, Lohse AW, Schramm C (2016)
No Evidence That Azathioprine Increases Risk of Cholangiocarcinoma in Patients With Primary Sclerosing Cholangitis
Clin Gastroenterol Hepatol, 14 (12), 1806-1812
PubMed 27521513

Zweers SJ, Shiryaev A, Komuta M, Vesterhus M, Hov JR, Perugorria MJ, de Waart DR, Chang JC, Tol S, Te Velde AA, de Jonge WJ, Banales JM, Roskams T, Beuers U, Karlsen TH, Jansen PL, Schaap FG (2016)
Elevated interleukin-8 in bile of patients with primary sclerosing cholangitis
Liver Int, 36 (9), 1370-7
PubMed 26866350

Publications 2015

Andersen IM, Fosby B, Boberg KM, Clausen OP, Jebsen P, Melum E, Line PD, Foss A, Schrumpf E, Karlsen TH (2015)
Indications and Outcomes in Liver Transplantation in Patients With Primary Sclerosing Cholangitis in Norway
Transplant Direct, 1 (9), e39
PubMed 27500239

Andreassen OA, Desikan RS, Wang Y, Thompson WK, Schork AJ, Zuber V, Doncheva NT, Ellinghaus E, Albrecht M, Mattingsdal M, Franke A, Lie BA, Mills IG, Aukrust P, McEvoy LK, Djurovic S, Karlsen TH, Dale AM (2015)
Abundant genetic overlap between blood lipids and immune-mediated diseases indicates shared molecular genetic mechanisms
PLoS One, 10 (4), e0123057
PubMed 25853426

Andreassen OA, Desikan RS, Wang Y, Thompson WK, Schork AJ, Zuber V, Doncheva NT, Ellinghaus E, Albrecht M, Mattingsdal M, Franke A, Lie BA, Mills IG, Aukrust P, McEvoy LK, Djurovic S, Karlsen TH, Dale AM (2015)
Correction: Abundant Genetic Overlap between Blood Lipids and Immune-Mediated Diseases Indicates Shared Molecular Genetic Mechanisms
PLoS One, 10 (5), e0128048
PubMed 25978331

Berntsen NL, Klingenberg O, Juran BD, Benito de Valle M, Lindkvist B, Lazaridis KN, Boberg KM, Karlsen TH, Hov JR (2015)
Association Between HLA Haplotypes and Increased Serum Levels of IgG4 in Patients With Primary Sclerosing Cholangitis
Gastroenterology, 148 (5), 924-927.e2
PubMed 25655558

Carpino G, Cardinale V, Renzi A, Hov JR, Berloco PB, Rossi M, Karlsen TH, Alvaro D, Gaudio E (2015)
Activation of biliary tree stem cells within peribiliary glands in primary sclerosing cholangitis
J Hepatol, 63 (5), 1220-8
PubMed 26119688

D'Agnolo HM, Kievit W, Andrade RJ, Karlsen TH, Wedemeyer H, Drenth JP (2015)
Creating an effective clinical registry for rare diseases
United European Gastroenterol J, 4 (3), 333-8
PubMed 27403298

Folseraas T, Liaskou E, Anderson CA, Karlsen TH (2015)
Genetics in PSC: what do the "risk genes" teach us?
Clin Rev Allergy Immunol, 48 (2-3), 154-64
PubMed 24736995

Fosby B, Melum E, Bjøro K, Bennet W, Rasmussen A, Andersen IM, Castedal M, Olausson M, Wibeck C, Gotlieb M, Gjertsen H, Toivonen L, Foss S, Makisalo H, Nordin A, Sanengen T, Bergquist A, Larsson ME, Soderdahl G, Nowak G, Boberg KM, Isoniemi H, Keiding S, Foss A, Line PD et al. (2015)
Liver transplantation in the Nordic countries - An intention to treat and post-transplant analysis from The Nordic Liver Transplant Registry 1982-2013
Scand J Gastroenterol, 50 (6), 797-808
PubMed 25959101

Goyette P, Boucher G, Mallon D, Ellinghaus E, Jostins L, Huang H, Ripke S, Gusareva ES, Annese V, Hauser SL, Oksenberg JR, Thomsen I, Leslie S, International Inflammatory Bowel Disease Genetics Consortium, Australia and New Zealand IBDGC, Belgium IBD Genetics Consortium, Italian Group for IBD Genetic Consortium, NIDDK Inflammatory Bowel Disease Genetics Consortium, United Kingdom IBDGC, Wellcome Trust Case Control Consortium, Quebec IBD Genetics Consortium, Daly MJ, Van Steen K, Duerr RH, Barrett JC et al. (2015)
High-density mapping of the MHC identifies a shared role for HLA-DRB1*01:03 in inflammatory bowel diseases and heterozygous advantage in ulcerative colitis
Nat Genet, 47 (2), 172-9
PubMed 25559196

Harbord M, Annese V, Vavricka SR, Allez M, Barreiro-de Acosta M, Boberg KM, Burisch J, De Vos M, De Vries AM, Dick AD, Juillerat P, Karlsen TH, Koutroubakis I, Lakatos PL, Orchard T, Papay P, Raine T, Reinshagen M, Thaci D, Tilg H, Carbonnel F, European Crohn’s and Colitis Organisation (2015)
The First European Evidence-based Consensus on Extra-intestinal Manifestations in Inflammatory Bowel Disease
J Crohns Colitis, 10 (3), 239-54
PubMed 26614685

Hov JR, Zhong H, Qin B, Anmarkrud JA, Holm K, Franke A, Lie BA, Karlsen TH (2015)
The Influence of the Autoimmunity-Associated Ancestral HLA Haplotype AH8.1 on the Human Gut Microbiota: A Cross-Sectional Study
PLoS One, 10 (7), e0133804
PubMed 26207384

Karlsen TH, Chung BK (2015)
Genetic Risk and the Development of Autoimmune Liver Disease
Dig Dis, 33 Suppl 2, 13-24
PubMed 26641277

Karlsen TH, Lammert F, Thompson RJ (2015)
Genetics of liver disease: From pathophysiology to clinical practice
J Hepatol, 62 (1 Suppl), S6-S14
PubMed 25920091

Kevans D, Tyler AD, Holm K, Jørgensen KK, Vatn MH, Karlsen TH, Kaplan GG, Eksteen B, Gevers D, Hov JR, Silverberg MS (2015)
Characterization of Intestinal Microbiota in Ulcerative Colitis Patients with and without Primary Sclerosing Cholangitis
J Crohns Colitis, 10 (3), 330-7
PubMed 26526357

Li J, Jørgensen SF, Maggadottir SM, Bakay M, Warnatz K, Glessner J, Pandey R, Salzer U, Schmidt RE, Perez E, Resnick E, Goldacker S, Buchta M, Witte T, Padyukov L, Videm V, Folseraas T, Atschekzei F, Elder JT, Nair RP, Winkelmann J, Gieger C, Nöthen MM, Büning C, Brand S et al. (2015)
Association of CLEC16A with human common variable immunodeficiency disorder and role in murine B cells
Nat Commun, 6, 6804
PubMed 25891430

Liaskou E, Klemsdal Henriksen EK, Holm K, Kaveh F, Hamm D, Fear J, Viken MK, Hov JR, Melum E, Robins H, Olweus J, Karlsen TH, Hirschfield GM (2015)
High-throughput T-cell receptor sequencing across chronic liver diseases reveals distinct disease-associated repertoires
Hepatology, 63 (5), 1608-19
PubMed 26257205

Maggadottir SM, Li J, Glessner JT, Li YR, Wei Z, Chang X, Mentch FD, Thomas KA, Kim CE, Zhao Y, Hou C, Wang F, Jørgensen SF, Perez EE, Sullivan KE, Orange JS, Karlsen TH, Chapel H, Cunningham-Rundles C, Hakonarson H (2015)
Rare variants at 16p11.2 are associated with common variable immunodeficiency
J Allergy Clin Immunol, 135 (6), 1569-77
PubMed 25678086

Olin P, Hausken J, Foss A, Karlsen TH, Melum E, Haugaa H (2015)
Continuous molecular adsorbent recirculating system treatment in 69 patients listed for liver transplantation
Scand J Gastroenterol, 50 (9), 1127-34
PubMed 25865318

Ponsioen CY, Chapman RW, Chazouillères O, Hirschfield GM, Karlsen TH, Lohse AW, Pinzani M, Schrumpf E, Trauner M, Gores GJ (2015)
Surrogate endpoints for clinical trials in primary sclerosing cholangitis: Review and results from an International PSC Study Group consensus process
Hepatology, 63 (4), 1357-67
PubMed 26418478

Sampaziotis F, de Brito MC, Madrigal P, Bertero A, Saeb-Parsy K, Soares FAC, Schrumpf E, Melum E, Karlsen TH, Bradley JA, Gelson WT, Davies S, Baker A, Kaser A, Alexander GJ, Hannan NRF, Vallier L (2015)
Cholangiocytes derived from human induced pluripotent stem cells for disease modeling and drug validation
Nat Biotechnol, 33 (8), 845-852
PubMed 26167629

Schrumpf E, Boberg KM, Karlsen TH (2015)
Primary sclerosing cholangitis - the Norwegian experience
Scand J Gastroenterol, 50 (6), 781-96
PubMed 25866138

Schrumpf E, Tan C, Karlsen TH, Sponheim J, Björkström NK, Sundnes O, Alfsnes K, Kaser A, Jefferson DM, Ueno Y, Eide TJ, Haraldsen G, Zeissig S, Exley MA, Blumberg RS, Melum E (2015)
The biliary epithelium presents antigens to and activates natural killer T cells
Hepatology, 62 (4), 1249-59
PubMed 25855031

Thorsen T, Dahlgren US, Aandahl EM, Grzyb K, Karlsen TH, Boberg KM, Rydberg L, Naper C, Foss A, Bennet W (2015)
Liver transplantation with deceased ABO-incompatible donors is life-saving but associated with increased risk of rejection and post-transplant complications
Transpl Int, 28 (7), 800-12
PubMed 25736519

Thorsen T, Aandahl EM, Bennet W, Olausson M, Ericzon BG, Nowak G, Duraj F, Isoniemi H, Rasmussen A, Karlsen TH, Foss A (2015)
Transplantation With Livers From Deceased Donors Older Than 75 Years
Transplantation, 99 (12), 2534-42
PubMed 25909464

Vesterhus M, Hov JR, Holm A, Schrumpf E, Nygård S, Godang K, Andersen IM, Naess S, Thorburn D, Saffioti F, Vatn M, Gilja OH, Lund-Johansen F, Syversveen T, Brabrand K, Parés A, Ponsioen CY, Pinzani M, Färkkilä M, Moum B, Ueland T, Røsjø H, Rosenberg W, Boberg KM, Karlsen TH (2015)
Enhanced liver fibrosis score predicts transplant-free survival in primary sclerosing cholangitis
Hepatology, 62 (1), 188-97
PubMed 25833813

Vukcevic D, Traherne JA, Næss S, Ellinghaus E, Kamatani Y, Dilthey A, Lathrop M, Karlsen TH, Franke A, Moffatt M, Cookson W, Trowsdale J, McVean G, Sawcer S, Leslie S (2015)
Imputation of KIR Types from SNP Variation Data
Am J Hum Genet, 97 (4), 593-607
PubMed 26430804

Wittig M, Anmarkrud JA, Kässens JC, Koch S, Forster M, Ellinghaus E, Hov JR, Sauer S, Schimmler M, Ziemann M, Görg S, Jacob F, Karlsen TH, Franke A (2015)
Development of a high-resolution NGS-based HLA-typing and analysis pipeline
Nucleic Acids Res, 43 (11), e70
PubMed 25753671

Åberg F, Gissler M, Karlsen TH, Ericzon BG, Foss A, Rasmussen A, Bennet W, Olausson M, Line PD, Nordin A, Bergquist A, Boberg KM, Castedal M, Pedersen CR, Isoniemi H (2015)
Differences in long-term survival among liver transplant recipients and the general population: a population-based Nordic study
Hepatology, 61 (2), 668-77
PubMed 25266201

Publications 2014

Andreassen OA, McEvoy LK, Thompson WK, Wang Y, Reppe S, Schork AJ, Zuber V, Barrett-Connor E, Gautvik K, Aukrust P, Karlsen TH, Djurovic S, Desikan RS, Dale AM, International Consortium for Blood Pressure Genome-Wide Association Studies, Genetic Factors for Osteoporosis Consortium (2014)
Identifying common genetic variants in blood pressure due to polygenic pleiotropy with associated phenotypes
Hypertension, 63 (4), 819-26
PubMed 24396023

Fickert P, Pollheimer MJ, Beuers U, Lackner C, Hirschfield G, Housset C, Keitel V, Schramm C, Marschall HU, Karlsen TH, Melum E, Kaser A, Eksteen B, Strazzabosco M, Manns M, Trauner M, International PSC Study Group (IPSCSG) (2014)
Characterization of animal models for primary sclerosing cholangitis (PSC)
J Hepatol, 60 (6), 1290-303
PubMed 24560657

Flachsbart F, Caliebe A, Heinsen FA, Hemming-Karlsen T, Schreiber S, Franke A, Nebel A (2014)
Investigation of complement component C4 copy number variation in human longevity
PLoS One, 9 (1), e86188
PubMed 24465950

Fosby B, Næss S, Hov JR, Traherne J, Boberg KM, Trowsdale J, Foss A, Line PD, Franke A, Melum E, Scott H, Karlsen TH (2014)
HLA variants related to primary sclerosing cholangitis influence rejection after liver transplantation
World J Gastroenterol, 20 (14), 3986-4000
PubMed 24744588

Henriksen EK, Melum E, Karlsen TH (2014)
Update on primary sclerosing cholangitis genetics
Curr Opin Gastroenterol, 30 (3), 310-9
PubMed 24565892

Hirschfield GM, Karlsen TH (2014)
Genetic risks link autoimmune hepatitis to other autoimmune liver disease
Gastroenterology, 147 (2), 270-3
PubMed 24973678

Naess S, Björnsson E, Anmarkrud JA, Al Mamari S, Juran BD, Lazaridis KN, Chapman R, Bergquist A, Melum E, Marsh SG, Schrumpf E, Lie BA, Boberg KM, Karlsen TH, Hov JR (2014)
Small duct primary sclerosing cholangitis without inflammatory bowel disease is genetically different from large duct disease
Liver Int, 34 (10), 1488-95
PubMed 24517468

Næss S, Lie BA, Melum E, Olsson M, Hov JR, Croucher PJ, Hampe J, Thorsby E, Bergquist A, Traherne JA, Schrumpf E, Boberg KM, Schreiber S, Franke A, Karlsen TH (2014)
Refinement of the MHC risk map in a scandinavian primary sclerosing cholangitis population
PLoS One, 9 (12), e114486
PubMed 25521205

Trøseid M, Ueland T, Hov JR, Svardal A, Gregersen I, Dahl CP, Aakhus S, Gude E, Bjørndal B, Halvorsen B, Karlsen TH, Aukrust P, Gullestad L, Berge RK, Yndestad A (2014)
Microbiota-dependent metabolite trimethylamine-N-oxide is associated with disease severity and survival of patients with chronic heart failure
J Intern Med, 277 (6), 717-26
PubMed 25382824

Publications 2013

Andersen IM, Tengesdal G, Lie BA, Boberg KM, Karlsen TH, Hov JR (2013)
Effects of coffee consumption, smoking, and hormones on risk for primary sclerosing cholangitis
Clin Gastroenterol Hepatol, 12 (6), 1019-28
PubMed 24076415

Ellinghaus D, Folseraas T, Holm K, Ellinghaus E, Melum E, Balschun T, Laerdahl JK, Shiryaev A, Gotthardt DN, Weismüller TJ, Schramm C, Wittig M, Bergquist A, Björnsson E, Marschall HU, Vatn M, Teufel A, Rust C, Gieger C, Wichmann HE, Runz H, Sterneck M, Rupp C, Braun F, Weersma RK et al. (2013)
Genome-wide association analysis in primary sclerosing cholangitis and ulcerative colitis identifies risk loci at GPR35 and TCF4
Hepatology, 58 (3), 1074-83
PubMed 22821403

Ellinghaus D, Zhang H, Zeissig S, Lipinski S, Till A, Jiang T, Stade B, Bromberg Y, Ellinghaus E, Keller A, Rivas MA, Skieceviciene J, Doncheva NT, Liu X, Liu Q, Jiang F, Forster M, Mayr G, Albrecht M, Häsler R, Boehm BO, Goodall J, Berzuini CR, Lee J, Andersen V et al. (2013)
Association between variants of PRDM1 and NDP52 and Crohn's disease, based on exome sequencing and functional studies
Gastroenterology, 145 (2), 339-47
PubMed 23624108

Friedrich K, Rupp C, Hov JR, Steinebrunner N, Weiss KH, Stiehl A, Brune M, Schaefer PK, Schemmer P, Sauer P, Schirmacher P, Runz H, Karlsen TH, Stremmel W, Gotthardt DN (2013)
A frequent PNPLA3 variant is a sex specific disease modifier in PSC patients with bile duct stenosis
PLoS One, 8 (3), e58734
PubMed 23505555

Hirschfield GM, Chapman RW, Karlsen TH, Lammert F, Lazaridis KN, Mason AL (2013)
The genetics of complex cholestatic disorders
Gastroenterology, 144 (7), 1357-74
PubMed 23583734

Hirschfield GM, Karlsen TH, Lindor KD, Adams DH (2013)
Primary sclerosing cholangitis
Lancet, 382 (9904), 1587-99
PubMed 23810223

Jørgensen KK, Lindström L, Cvancarova M, Karlsen TH, Castedal M, Friman S, Schrumpf E, Foss A, Isoniemi H, Nordin A, Holte K, Rasmussen A, Bergquist A, Vatn MH, Boberg KM (2013)
Immunosuppression after liver transplantation for primary sclerosing cholangitis influences activity of inflammatory bowel disease
Clin Gastroenterol Hepatol, 11 (5), 517-23
PubMed 23333218

Karlsen TH, Boberg KM (2013)
Update on primary sclerosing cholangitis
J Hepatol, 59 (3), 571-82
PubMed 23603668

Karlsen TH, Vesterhus M, Boberg KM (2013)
Review article: controversies in the management of primary biliary cirrhosis and primary sclerosing cholangitis
Aliment Pharmacol Ther, 39 (3), 282-301
PubMed 24372568

Liu JZ, Hov JR, Folseraas T, Ellinghaus E, Rushbrook SM, Doncheva NT, Andreassen OA, Weersma RK, Weismüller TJ, Eksteen B, Invernizzi P, Hirschfield GM, Gotthardt DN, Pares A, Ellinghaus D, Shah T, Juran BD, Milkiewicz P, Rust C, Schramm C, Müller T, Srivastava B, Dalekos G, Nöthen MM, Herms S et al. (2013)
Dense genotyping of immune-related disease regions identifies nine new risk loci for primary sclerosing cholangitis
Nat Genet, 45 (6), 670-5
PubMed 23603763

Mells GF, Kaser A, Karlsen TH (2013)
Novel insights into autoimmune liver diseases provided by genome-wide association studies
J Autoimmun, 46, 41-54
PubMed 23931959

Wannhoff A, Hov JR, Folseraas T, Rupp C, Friedrich K, Anmarkrud JA, Weiss KH, Sauer P, Schirmacher P, Boberg KM, Stremmel W, Karlsen TH, Gotthardt DN (2013)
FUT2 and FUT3 genotype determines CA19-9 cut-off values for detection of cholangiocarcinoma in patients with primary sclerosing cholangitis
J Hepatol, 59 (6), 1278-84
PubMed 23958938

Publications 2012

Andresen K, Boberg KM, Vedeld HM, Honne H, Hektoen M, Wadsworth CA, Clausen OP, Karlsen TH, Foss A, Mathisen O, Schrumpf E, Lothe RA, Lind GE (2012)
Novel target genes and a valid biomarker panel identified for cholangiocarcinoma
Epigenetics, 7 (11), 1249-57
PubMed 22983262

Folseraas T, Melum E, Rausch P, Juran BD, Ellinghaus E, Shiryaev A, Laerdahl JK, Ellinghaus D, Schramm C, Weismüller TJ, Gotthardt DN, Hov JR, Clausen OP, Weersma RK, Janse M, Boberg KM, Björnsson E, Marschall HU, Cleynen I, Rosenstiel P, Holm K, Teufel A, Rust C, Gieger C, Wichmann HE et al. (2012)
Extended analysis of a genome-wide association study in primary sclerosing cholangitis detects multiple novel risk loci
J Hepatol, 57 (2), 366-75
PubMed 22521342

Fosby B, Karlsen TH, Melum E (2012)
Recurrence and rejection in liver transplantation for primary sclerosing cholangitis
World J Gastroenterol, 18 (1), 1-15
PubMed 22228965

Jostins L, Ripke S, Weersma RK, Duerr RH, McGovern DP, Hui KY, Lee JC, Schumm LP, Sharma Y, Anderson CA, Essers J, Mitrovic M, Ning K, Cleynen I, Theatre E, Spain SL, Raychaudhuri S, Goyette P, Wei Z, Abraham C, Achkar JP, Ahmad T, Amininejad L, Ananthakrishnan AN, Andersen V et al. (2012)
Host-microbe interactions have shaped the genetic architecture of inflammatory bowel disease
Nature, 491 (7422), 119-24
PubMed 23128233

Karlsen TH (2012)
A lecture on the genetics of primary sclerosing cholangitis
Dig Dis, 30 Suppl 1, 32-8
PubMed 23075866

Metzger J, Negm AA, Plentz RR, Weismüller TJ, Wedemeyer J, Karlsen TH, Dakna M, Mullen W, Mischak H, Manns MP, Lankisch TO (2012)
Urine proteomic analysis differentiates cholangiocarcinoma from primary sclerosing cholangitis and other benign biliary disorders
Gut, 62 (1), 122-30
PubMed 22580416

Næss S, Shiryaev A, Hov JR, Franke A, Karlsen TH (2012)
Genetics in primary sclerosing cholangitis
Clin Res Hepatol Gastroenterol, 36 (4), 325-33
PubMed 22554879

Srivastava B, Mells GF, Cordell HJ, Muriithi A, Brown M, Ellinghaus E, Franke A, UK-PSC Consortium, Karlsen TH, Sandford RN, Alexander GJ, Chapman RW, Rushbrook SM, Melum E (2012)
Fine mapping and replication of genetic risk loci in primary sclerosing cholangitis
Scand J Gastroenterol, 47 (7), 820-6
PubMed 22554193

Publications 2011

Anderson CA, Boucher G, Lees CW, Franke A, D'Amato M, Taylor KD, Lee JC, Goyette P, Imielinski M, Latiano A, Lagacé C, Scott R, Amininejad L, Bumpstead S, Baidoo L, Baldassano RN, Barclay M, Bayless TM, Brand S, Büning C, Colombel JF, Denson LA, De Vos M, Dubinsky M, Edwards C et al. (2011)
Meta-analysis identifies 29 additional ulcerative colitis risk loci, increasing the number of confirmed associations to 47
Nat Genet, 43 (3), 246-52
PubMed 21297633

Folseraas T, Karlsen TH (2011)
To MMP or not to MMP: a role for matrix metalloproteinase 3 in primary sclerosing cholangitis?
Liver Int, 31 (6), 751-4
PubMed 21645205

Folseraas T, Melum E, Franke A, Karlsen TH (2011)
Genetics in primary sclerosing cholangitis
Best Pract Res Clin Gastroenterol, 25 (6), 713-26
PubMed 22117637

Hov JR, Keitel V, Schrumpf E, Häussinger D, Karlsen TH (2011)
TGR5 sequence variation in primary sclerosing cholangitis
Dig Dis, 29 (1), 78-84
PubMed 21691110

Hov JR, Kosmoliaptsis V, Traherne JA, Olsson M, Boberg KM, Bergquist A, Schrumpf E, Bradley JA, Taylor CJ, Lie BA, Trowsdale J, Karlsen TH (2011)
Electrostatic modifications of the human leukocyte antigen-DR P9 peptide-binding pocket and susceptibility to primary sclerosing cholangitis
Hepatology, 53 (6), 1967-76
PubMed 21413052

Janse M, Lamberts LE, Franke L, Raychaudhuri S, Ellinghaus E, Muri Boberg K, Melum E, Folseraas T, Schrumpf E, Bergquist A, Björnsson E, Fu J, Jan Westra H, Groen HJ, Fehrmann RS, Smolonska J, van den Berg LH, Ophoff RA, Porte RJ, Weismüller TJ, Wedemeyer J, Schramm C, Sterneck M, Günther R, Braun F et al. (2011)
Three ulcerative colitis susceptibility loci are associated with primary sclerosing cholangitis and indicate a role for IL2, REL, and CARD9
Hepatology, 53 (6), 1977-85
PubMed 21425313

Karlsen TH, Kaser A (2011)
Deciphering the genetic predisposition to primary sclerosing cholangitis
Semin Liver Dis, 31 (2), 188-207
PubMed 21538284

Karlsen TH, Lazaridis KN (2011)
At the end of the beginning. Foreword
Semin Liver Dis, 31 (2), 111-3
PubMed 21538278

Publications 2010

Bowlus CL, Li CS, Karlsen TH, Lie BA, Selmi C (2010)
Primary sclerosing cholangitis in genetically diverse populations listed for liver transplantation: unique clinical and human leukocyte antigen associations
Liver Transpl, 16 (11), 1324-30
PubMed 21031548

Ellinghaus E, Ellinghaus D, Stuart PE, Nair RP, Debrus S, Raelson JV, Belouchi M, Fournier H, Reinhard C, Ding J, Li Y, Tejasvi T, Gudjonsson J, Stoll SW, Voorhees JJ, Lambert S, Weidinger S, Eberlein B, Kunz M, Rahman P, Gladman DD, Gieger C, Wichmann HE, Karlsen TH, Mayr G et al. (2010)
Genome-wide association study identifies a psoriasis susceptibility locus at TRAF3IP2
Nat Genet, 42 (11), 991-5
PubMed 20953188

Franke A, Balschun T, Sina C, Ellinghaus D, Häsler R, Mayr G, Albrecht M, Wittig M, Buchert E, Nikolaus S, Gieger C, Wichmann HE, Sventoraityte J, Kupcinskas L, Onnie CM, Gazouli M, Anagnou NP, Strachan D, McArdle WL, Mathew CG, Rutgeerts P, Vermeire S, Vatn MH, IBSEN study group, Krawczak M et al. (2010)
Genome-wide association study for ulcerative colitis identifies risk loci at 7q22 and 22q13 (IL17REL)
Nat Genet, 42 (4), 292-4
PubMed 20228798

Friman S, Foss A, Isoniemi H, Olausson M, Höckerstedt K, Yamamoto S, Karlsen TH, Rizell M, Ericzon BG (2010)
Liver transplantation for cholangiocarcinoma: selection is essential for acceptable results
Scand J Gastroenterol, 46 (3), 370-5
PubMed 21073376

Hollenbach JA, Meenagh A, Sleator C, Alaez C, Bengoche M, Canossi A, Contreras G, Creary L, Evseeva I, Gorodezky C, Hardie RA, Karlsen TH, Lie B, Luo M, Martinetti M, Navarette C, de Oliveira DC, Ozzella G, Pasi A, Pavlova E, Pinto S, Porto LC, Santos P, Slavcev A, Srinak D et al. (2010)
Report from the killer immunoglobulin-like receptor (KIR) anthropology component of the 15th International Histocompatibility Workshop: worldwide variation in the KIR loci and further evidence for the co-evolution of KIR and HLA
Tissue Antigens, 76 (1), 9-17
PubMed 20331834

Holm K, Melum E, Franke A, Karlsen TH (2010)
SNPexp - A web tool for calculating and visualizing correlation between HapMap genotypes and gene expression levels
BMC Bioinformatics, 11, 600
PubMed 21167019

Hov JR, Keitel V, Laerdahl JK, Spomer L, Ellinghaus E, ElSharawy A, Melum E, Boberg KM, Manke T, Balschun T, Schramm C, Bergquist A, Weismüller T, Gotthardt D, Rust C, Henckaerts L, Onnie CM, Weersma RK, Sterneck M, Teufel A, Runz H, Stiehl A, Ponsioen CY, Wijmenga C, Vatn MH et al. (2010)
Mutational characterization of the bile acid receptor TGR5 in primary sclerosing cholangitis
PLoS One, 5 (8), e12403
PubMed 20811628

Hov JR, Lleo A, Selmi C, Woldseth B, Fabris L, Strazzabosco M, Karlsen TH, Invernizzi P (2010)
Genetic associations in Italian primary sclerosing cholangitis: heterogeneity across Europe defines a critical role for HLA-C
J Hepatol, 52 (5), 712-7
PubMed 20347497

Karlsen TH, Hov JR (2010)
Genetics of cholestatic liver disease in 2010
Curr Opin Gastroenterol, 26 (3), 251-8
PubMed 20042859

Karlsen TH, Melum E, Franke A (2010)
The utility of genome-wide association studies in hepatology
Hepatology, 51 (5), 1833-42
PubMed 20232293

Karlsen TH, Schrumpf E, Boberg KM (2010)
Primary sclerosing cholangitis
Best Pract Res Clin Gastroenterol, 24 (5), 655-66
PubMed 20955968

Karlsen TH, Schrumpf E, Boberg KM (2010)
Update on primary sclerosing cholangitis
Dig Liver Dis, 42 (6), 390-400
PubMed 20172772

Lorentzen AR, Melum E, Ellinghaus E, Smestad C, Mero IL, Aarseth JH, Myhr KM, Celius EG, Lie BA, Karlsen TH, Franke A, Harbo HF (2010)
Association to the Glypican-5 gene in multiple sclerosis
J Neuroimmunol, 226 (1-2), 194-7
PubMed 20692050

Melum E, Franke A, Schramm C, Weismüller TJ, Gotthardt DN, Offner FA, Juran BD, Laerdahl JK, Labi V, Björnsson E, Weersma RK, Henckaerts L, Teufel A, Rust C, Ellinghaus E, Balschun T, Boberg KM, Ellinghaus D, Bergquist A, Sauer P, Ryu E, Hov JR, Wedemeyer J, Lindkvist B, Wittig M et al. (2010)
Genome-wide association analysis in primary sclerosing cholangitis identifies two non-HLA susceptibility loci
Nat Genet, 43 (1), 17-9
PubMed 21151127

Melum E, May S, Schilhabel MB, Thomsen I, Karlsen TH, Rosenstiel P, Schreiber S, Franke A (2010)
SNP discovery performance of two second-generation sequencing platforms in the NOD2 gene region
Hum Mutat, 31 (7), 875-85
PubMed 20506538

Publications 2009

Forsbring M, Vik ES, Dalhus B, Karlsen TH, Bergquist A, Schrumpf E, Bjørås M, Boberg KM, Alseth I (2009)
Catalytically impaired hMYH and NEIL1 mutant proteins identified in patients with primary sclerosing cholangitis and cholangiocarcinoma
Carcinogenesis, 30 (7), 1147-54
PubMed 19443904

Karlsen TH (2009)
Genome-wide association studies reach hepatology
J Hepatol, 50 (6), 1278-80
PubMed 19395112

Karlsen TH, Franke A, Melum E, Kaser A, Hov JR, Balschun T, Lie BA, Bergquist A, Schramm C, Weismüller TJ, Gotthardt D, Rust C, Philipp EE, Fritz T, Henckaerts L, Weersma RK, Stokkers P, Ponsioen CY, Wijmenga C, Sterneck M, Nothnagel M, Hampe J, Teufel A, Runz H, Rosenstiel P et al. (2009)
Genome-wide association analysis in primary sclerosing cholangitis
Gastroenterology, 138 (3), 1102-11
PubMed 19944697

Lorentzen AR, Karlsen TH, Olsson M, Smestad C, Mero IL, Woldseth B, Sun JY, Senitzer D, Celius EG, Thorsby E, Spurkland A, Lie BA, Harbo HF (2009)
Killer immunoglobulin-like receptor ligand HLA-Bw4 protects against multiple sclerosis
Ann Neurol, 65 (6), 658-66
PubMed 19630074

Melum E, Franke A, Karlsen TH (2009)
Genome-wide association studies--a summary for the clinical gastroenterologist
World J Gastroenterol, 15 (43), 5377-96
PubMed 19916168

Scholz T, Karlsen TH, Sanengen T, Schrumpf E, Line PD, Boberg KM, Jörgensen PF, Fosby B, Bentdal O, Ostensen AB, Osnes S, Riddervold F, Haugaa H, Hausken J, Bergmann JB, Foss S, Björo K, Foss A, Levertransplantasjonsgruppen ved Oslo universitetssykehus, Rikshospitalet (2009)
[Liver transplantation in Norway through 25 years]
Tidsskr Nor Laegeforen, 129 (24), 2587-92
PubMed 20029553

Yu X, Wieczorek S, Franke A, Yin H, Pierer M, Sina C, Karlsen TH, Boberg KM, Bergquist A, Kunz M, Witte T, Gross WL, Epplen JT, Alarcón-Riquelme ME, Schreiber S, Ibrahim SM (2009)
Association of UCP2 -866 G/A polymorphism with chronic inflammatory diseases
Genes Immun, 10 (6), 601-5
PubMed 19387457

Publications 2008

Franke A, Balschun T, Karlsen TH, Hedderich J, May S, Lu T, Schuldt D, Nikolaus S, Rosenstiel P, Krawczak M, Schreiber S (2008)
Replication of signals from recent studies of Crohn's disease identifies previously unknown disease loci for ulcerative colitis
Nat Genet, 40 (6), 713-5
PubMed 18438405

Franke A, Balschun T, Karlsen TH, Sventoraityte J, Nikolaus S, Mayr G, Domingues FS, Albrecht M, Nothnagel M, Ellinghaus D, Sina C, Onnie CM, Weersma RK, Stokkers PC, Wijmenga C, Gazouli M, Strachan D, McArdle WL, Vermeire S, Rutgeerts P, Rosenstiel P, Krawczak M, Vatn MH, IBSEN study group, Mathew CG et al. (2008)
Sequence variants in IL10, ARPC2 and multiple other loci contribute to ulcerative colitis susceptibility
Nat Genet, 40 (11), 1319-23
PubMed 18836448

Hov JR, Boberg KM, Karlsen TH (2008)
Autoantibodies in primary sclerosing cholangitis
World J Gastroenterol, 14 (24), 3781-91
PubMed 18609700

Karlsen TH, Schrumpf E, Boberg KM (2008)
Gallbladder polyps in primary sclerosing cholangitis: not so benign
Curr Opin Gastroenterol, 24 (3), 395-9
PubMed 18408471

Melum E, Buch S, Schafmayer C, Kalthoff H, Tepel J, Schreiber S, Karlsen TH, Hampe J (2008)
Investigation of cholangiocarcinoma associated NKG2D polymorphisms in colorectal carcinoma
Int J Cancer, 123 (1), 241-2
PubMed 18398827

Melum E, Karlsen TH, Bergquist A, Schrumpf E, Boberg KM (2008)
An interleukin-6 (IL-6) receptor polymorphism affecting serum levels of IL-6 does not increase the risk of cholangiocarcinoma in primary sclerosing cholangitis
Am J Gastroenterol, 103 (4), 1045; author reply 1045-6
PubMed 18397431

Melum E, Karlsen TH, Schrumpf E, Bergquist A, Thorsby E, Boberg KM, Lie BA (2008)
Cholangiocarcinoma in primary sclerosing cholangitis is associated with NKG2D polymorphisms
Hepatology, 47 (1), 90-6
PubMed 18023027

Publications 2007

Eike MC, Nordang GB, Karlsen TH, Boberg KM, Vatn MH, IBSEN study group, Dahl-Jørgensen K, Rønningen KS, Joner G, Flatø B, Bergquist A, Thorsby E, Førre O, Kvien TK, Undlien DE, Lie BA (2007)
The FCRL3 -169T>C polymorphism is associated with rheumatoid arthritis and shows suggestive evidence of involvement with juvenile idiopathic arthritis in a Scandinavian panel of autoimmune diseases
Ann Rheum Dis, 67 (9), 1287-91
PubMed 18065500

Franke A, Rosenstiel P, Balschun T, Von Kampen O, Schreiber S, Sina C, Hampe J, Karlsen TH, Vatn MH, IBSEN Study Group, Solberg C (2007)
No association between the TUCAN (CARD8) Cys10Stop mutation and inflammatory bowel disease in a large retrospective German and a clinically well-characterized Norwegian sample
Gastroenterology, 132 (5), 2080-1
PubMed 17484912

Karlsen TH, Boberg KM, Olsson M, Sun JY, Senitzer D, Bergquist A, Schrumpf E, Thorsby E, Lie BA (2007)
Particular genetic variants of ligands for natural killer cell receptors may contribute to the HLA associated risk of primary sclerosing cholangitis
J Hepatol, 46 (5), 899-906
PubMed 17383044

Karlsen TH, Boberg KM, Vatn M, Bergquist A, Hampe J, Schrumpf E, Thorsby E, Schreiber S, Lie BA, IBSEN Study Group (2007)
Different HLA class II associations in ulcerative colitis patients with and without primary sclerosing cholangitis
Genes Immun, 8 (3), 275-8
PubMed 17301827

Karlsen TH, Schrumpf E, Boberg KM (2007)
Genetic epidemiology of primary sclerosing cholangitis
World J Gastroenterol, 13 (41), 5421-31
PubMed 17907284

Wiencke K, Karlsen TH, Boberg KM, Thorsby E, Schrumpf E, Lie BA, Spurkland A (2007)
Primary sclerosing cholangitis is associated with extended HLA-DR3 and HLA-DR6 haplotypes
Tissue Antigens, 69 (2), 161-9
PubMed 17257319

Publications 2006

Bowlus CL, Karlsen TH, Broomé U, Thorsby E, Vatn M, Schrumpf E, Lie BA, Boberg KM (2006)
Analysis of MAdCAM-1 and ICAM-1 polymorphisms in 365 Scandinavian patients with primary sclerosing cholangitis
J Hepatol, 45 (5), 704-10
PubMed 16750586

Franke A, Ruether A, Wedemeyer N, Karlsen TH, Nebel A, Schreiber S (2006)
No association between the functional CARD4 insertion/deletion polymorphism and inflammatory bowel diseases in the German population
Gut, 55 (11), 1679-80
PubMed 17047129

Karlsen TH, Hampe J, Wiencke K, Schrumpf E, Thorsby E, Lie BA, Broomé U, Schreiber S, Boberg KM (2006)
Genetic polymorphisms associated with inflammatory bowel disease do not confer risk for primary sclerosing cholangitis
Am J Gastroenterol, 102 (1), 115-21
PubMed 17100974

Karlsen TH, Lie BA, Frey Frøslie K, Thorsby E, Broomé U, Schrumpf E, Boberg KM (2006)
Polymorphisms in the steroid and xenobiotic receptor gene influence survival in primary sclerosing cholangitis
Gastroenterology, 131 (3), 781-7
PubMed 16952547

Melum E, Karlsen TH, Broomé U, Thorsby E, Schrumpf E, Boberg KM, Lie BA (2006)
The 32-base pair deletion of the chemokine receptor 5 gene (CCR5-Delta32) is not associated with primary sclerosing cholangitis in 363 Scandinavian patients
Tissue Antigens, 68 (1), 78-81
PubMed 16774544

Publications 2004

Laerum H, Karlsen TH, Faxvaag A (2004)
Use of and attitudes to a hospital information system by medical secretaries, nurses and physicians deprived of the paper-based medical record: a case report
BMC Med Inform Decis Mak, 4, 18
PubMed 15488150

Publications 2003

Karlsen TH, Sommerfelt H, Klomstad S, Andersen PK, Strand TA, Ulvik RJ, Ahrén C, Grewal HM (2003)
Intestinal and systemic immune responses to an oral cholera toxoid B subunit whole-cell vaccine administered during zinc supplementation
Infect Immun, 71 (7), 3909-13
PubMed 12819076

Laerum H, Karlsen TH, Faxvaag A (2003)
Effects of scanning and eliminating paper-based medical records on hospital physicians' clinical work practice
J Am Med Inform Assoc, 10 (6), 588-95
PubMed 12925550

Publications 2000

Grewal HM, Karlsen TH, Vetvik H, Ahrén C, Gjessing HK, Sommerfelt H, Haneberg B (2000)
Measurement of specific IgA in faecal extracts and intestinal lavage fluid for monitoring of mucosal immune responses
J Immunol Methods, 239 (1-2), 53-62
PubMed 10821947