• Abundant Genetic Overlap between Blood Lipids and Immune-Mediated Diseases Indicates Shared Molecular Genetic Mechanisms 

      Andreassen, Ole Andreas; Desikan, Rahul S.; Wang, Yunpeng; Thompson, Wesley K.; Schork, Andrew J.; Zuber, Verena; Doncheva, Nadezhda T.; Ellinghaus, E.va; Mattingsdal, Morten; Franke, Andre; Lie, Benedicte. A.; Mills, Ian Geoffrey; Aukrust, Pål; McEvoy, Linda K.; Djurovic, Srdjan; Karlsen, Tom Hemming; Dale, Anders M. (Peer reviewed; Journal article, 2015-04-08)
      Epidemiological studies suggest a relationship between blood lipids and immune-mediated diseases, but the nature of these associations is not well understood. We used genome-wide association studies (GWAS) to investigate ...
    • Altered Gut Microbial Metabolism of Essential Nutrients in Primary Sclerosing Cholangitis 

      Kummen, Martin; Thingholm, Louise B.; Rühlemann, Malte C.; Holm, Kristian; Hansen, Simen Hyll; Moitinho-Silva, Lucas; Liwinski, Timur; Zenouzi, Roman; Larsen, Christopher Storm; Midttun, Øivind; McCann, Adrian; Ueland, Per Magne; Høivik, Marte Lie; Vesterhus, Mette; Trøseid, Marius; Laudes, Matthias; Lieb, Wolfgang; Karlsen, Tom Hemming; Bang, Corinna; Schramm, Christoph; Franke, Andre; Hov, Johannes Espolin Roksund (Journal article; Peer reviewed, 2021)
      Background & Aims To influence host and disease phenotype, compositional microbiome changes, which have been demonstrated in patients with primary sclerosing cholangitis (PSC), must be accompanied by functional changes. ...
    • Autotaxin activity predicts transplant-free survival in primary sclerosing cholangitis 

      Dhillon, Amandeep Kaur; Kremer, Andreas E.; Kummen, Martin; Boberg, Kirsten Muri; Elferink, Ronald P. Oude; Karlsen, Tom Hemming; Beuers, Ulrich; Vesterhus, Mette; Hov, Johannes Espolin Roksund (Peer reviewed; Journal article, 2019-06-11)
      Autotaxin has been associated with liver disease severity and transplant-free survival. This study aimed to validate autotaxin as a biomarker in two cohorts of Norwegian large-duct PSC patients, one discovery panel (n=165) ...
    • Bile Acid Profiles in Primary Sclerosing Cholangitis and their Ability to Predict Hepatic Decompensation 

      Mousa, Omar Y; Juran, Brian D; McCauley, Bryan M.; Vesterhus, Mette; Folseraas, Trine; Turgeon, Coleman T.; Ali, Ahmad; Schlicht, Erik M; Atkinson, Elizabeth J; Hu, Chang; Harnois, Denise; Carey, Elizabeth J; Gossard, Andrea A; Oglesbee, Devin; Eaton, John E; LaRusso, Nicholas F.; Gores, Gregory J.; Karlsen, Tom Hemming; Lazaridis, Konstantinos N. (Journal article; Peer reviewed, 2020)
      Background and Aims: Altered bile acid (BA) homeostasis is an intrinsic facet of cholestatic liver diseases, but clinical usefulness of plasma BA assessment in primary sclerosing cholangitis (PSC) remains understudied. We ...
    • Circulating markers of gut barrier function associated with disease severity in primary sclerosing cholangitis 

      Dhillon, Amandeep Kaur; Kummen, Martin; Trøseid, Marius; Åkra, Sissel; Liaskou, Evaggelia; Moum, Bjørn; Vesterhus, Mette; Karlsen, Tom Hemming; Seljeflot, Ingebjørg; Hov, Johannes Espolin Roksund (Peer reviewed; Journal article, 2019-02)
      Background & Aims: One important hypothesis in primary sclerosing cholangitis pathophysiology suggests that bacterial products from an inflamed leaky gut lead to biliary inflammation. We aimed to investigate whether ...
    • Comprehensive assessment of ECM turnover using serum biomarkers establishes PBC as a high-turnover autoimmune liver disease 

      Vesterhus, Mette; Nielsen, Mette; Hov, Johannes Espolin Roksund; Saffioti, Francesca; Manon-Jensen, Tina; Leeming, Diana Julie; Moum, Bjørn; Boberg, Kirsten Muri; Pinzani, Massimo; Karlsen, Tom Hemming; Karsdal, Morten A; Thorburn, Douglas (Journal article; Peer reviewed, 2021)
      Background & Aims: Primary sclerosing cholangitis (PSC), primary biliary cholangitis (PBC) and autoimmune hepatitis (AIH) are phenotypically distinct autoimmune liver diseases that progress to cirrhosis and liver failure; ...
    • Enhanced liver fibrosis test predicts transplant-free survival in primary sclerosing cholangitis, a multi-centre study 

      de Vries, Elisabeth M.G.; Färkkilä, Martti; Milkiewicz, Piotr; Hov, Johannes Espolin Roksund; Eksteen, Bertus; Thorburn, Douglas; Chazouillères, Olivier; Pares, Albert; Nygård, Ståle; Gilja, Odd Helge; Wunsch, Ewa; Invernizzi, Pietro; Carbone, Marco; Bernuzzi, Francesca; Boberg, Kirsten Muri; Røsjø, Helge; Rosenberg, William; Beuers, Ulrich H.; Ponsioen, Cyriel Y.; Karlsen, Tom Hemming; Vesterhus, Mette (Peer reviewed; Journal article, 2017-10)
      Background & Aims: Biomarkers reflecting disease activity and prognosis in primary sclerosing cholangitis (PSC) have not been firmly established. Enhanced liver fibrosis (ELF) test was previously reported to predict outcome ...
    • Immune-related genetic enrichment in frontotemporal dementia: An analysis of genome-wide association studies 

      Broce, Iris J.; Karch, Celeste M.; Wen, Natalie; Fan, Chun C.; Wang, Yunpeng; Hong Tan, Chin; Kouri, Naomi; Ross, Owen A.; Höglinger, Günter U.; Müller, Ulrich; Hardy, John; Momeni, Parastoo; Hess, Christopher P.; Dillon, William P.; Miller, Zachary A.; Bonham, Luke W.; Rabinovici, Gil D.; Rosen, Howard J.; Schellenberg, Gerard D.; Franke, Andre; Karlsen, Tom Hemming; Veldink, Jan H.; Ferrari, Raffaele; Yokoyama, Jennifer S.; Miller, Bruce L.; Andreassen, Ole Andreas; Dale, Anders; Desikan, Rahul S.; Sugrue, Leo P. (Peer reviewed; Journal article, 2018-01-09)
      Background: Converging evidence suggests that immune-mediated dysfunction plays an important role in the pathogenesis of frontotemporal dementia (FTD). Although genetic studies have shown that immune-associated loci are ...
    • Investigation of complement component C4 copy number variation in human longevity 

      Flachsbart, Friederike; Caliebe, Amke; Heinsen, Femke-Anouska; Karlsen, Tom Hemming; Schreiber, Stefan; Franke, Andre; Nebel, Almut (Peer reviewed; Journal article, 2014-01-22)
      Genetic factors have been estimated to account for about 25% of the variation in an adult’s life span. The complement component C4 with the isotypes C4A and C4B is an effector protein of the immune system, and differences ...
    • Rifaximin alters gut microbiota profile, but does not affect systemic inflammation - a randomized controlled trial in common variable immunodeficiency 

      Jørgensen, Silje Fjellgård; Macpherson, Magnhild Eide; Bjørnetrø, Tonje; Holm, Kristian; Kummen, Martin; Rashidi, Azita; Michelsen, Annika; Lekva, Tove; Halvorsen, Bente; Trøseid, Marius; Mollnes, Tom Eirik; Berge, Rolf Kristian; Yndestad, Arne; Ueland, Thor; Karlsen, Tom Hemming; Aukrust, Pål; Hov, Johannes Espolin Roksund; Fevang, Børre (Peer reviewed; Journal article, 2019-01-17)
      Common variable immunodefciency (CVID) patients have reduced gut microbial diversity compared to healthy controls. The reduced diversity is associated with gut leakage, increased systemic infammation and ten “key” bacteria ...
    • Rosuvastatin alters the genetic composition of the human gut microbiome 

      Kummen, Martin; Solberg, Ole Geir; Larsen, Christopher Storm; Holm, Kristian; Ragnarsson, Asgrimur; Trøseid, Marius; Vestad, Beate; Skårdal, Rita; Yndestad, Arne; Ueland, Thor; Svardal, Asbjørn M.; Berge, Rolf Kristian; Seljeflot, Ingebjørg; Gullestad, Lars; Karlsen, Tom Hemming; Aaberge, Lars; Aukrust, Pål; Hov, Johannes Espolin Roksund (Journal article; Peer reviewed, 2020)
      The gut microbiome contributes to the variation of blood lipid levels, and secondary bile acids are associated with the effect of statins. Yet, our knowledge of how statins, one of our most common drug groups, affect the ...
    • Second-line and Third-line therapy for Autoimmune Hepatitis: A position statement from the European Reference Network on Hepatological Diseases and the International Autoimmune Hepatitis Group 

      Lohse, Ansgar W.; Sebode, Marcial; Jørgensen, Marianne H.; Ytting, Henriette; Karlsen, Tom Hemming; Kelly, Deirdre; Manns, Michael P.; Vesterhus, Mette (Journal article; Peer reviewed, 2020)
      Most patients with autoimmune hepatitis respond well to standard immunosuppressive therapy with steroids and azathioprine, and while untreated disease is usually fatal, patients who respond well to therapy have an excellent ...
    • Update on primary sclerosing cholangitis 

      Karlsen, Tom Hemming; Boberg, Kirsten Muri (Peer reviewed; Journal article, 2013-09)
      Primary sclerosing cholangitis (PSC) remains one of the most challenging conditions of clinical hepatology. There has been a steady growth in research to overcome this fact and the present review aims at summarizing the ...