• Atrial fibrillation in cryptogenic stroke and transient ischaemic attack – The Nordic Atrial Fibrillation and Stroke (NOR-FIB) Study: Rationale and design 

      Ratajczak-Tretel, Barbara; Lambert, Anna Tancin; Johansen, Henriette; Halvorsen, Bente; Bjerkeli, Vigdis; Russell, David; Sandset, Else Charlotte; Ihle-Hansen, Hege; Eriksen, Erik; Næss, Halvor; Novotny, Vojtech; Khanevski, Andrej; Truelsen, Thomas; Idicula, Titto; Ægidius, Karen L.; Tobro, Håkon; Bohne Krogseth, Siv; Ihle-Hansen, Håkon; Hagberg, Guri; Kruuse, Christina; Arntzen, Kathrine; Bakkejord, Grete K.; Villseth, Maja; Nakstad, Ingvild; Eldøen, Guttorm; Shafiq, Raheel; Gulsvik, Anne Kristine; Kurz, Martin; Rezai, Mehdi; Sømark, Jesper; Tingvoll, Stein-Helge; Jonassen, Christine M; Ingebrigtsen, Susanne; Steffensen, Linn Hofsøy; Kremer, Christine; Atar, Dan; Aamodt, Anne Hege (Journal article; Peer reviewed, 2019)
      Purpose Paroxysmal atrial fibrillation is often suspected as a probable cause of cryptogenic stroke. Continuous long-term ECG monitoring using insertable cardiac monitors is a clinically effective technique to screen for ...
    • Cholesterol Crystals Induce coagulation Activation through Complement-Dependent Expression of Monocytic Tissue Factor 

      Gravastrand, Caroline S.; Steinkjer, Bjørg; Halvorsen, Bente; Landsem, Anne; Skjelland, Mona; Jacobsen, Eva Astrid; Woodruff, Trent M.; Lambris, John D.; Mollnes, Tom Eirik; Brekke, Ole-Lars; Espevik, Terje; Rokstad, Anne Mari (Journal article; Peer reviewed, 2019)
      Cholesterol crystals (CC) are strong activators of complement and could potentially be involved in thromboinflammation through complement-coagulation cross-talk. To explore the coagulation-inducing potential of CC, we ...
    • Cytokine pattern in patients with ST-elevation myocardial infarction treated with the interleukin-6 receptor antagonist tocilizumab 

      Woxholt, Sindre; Ueland, Thor; Aukrust, Pål; Anstensrud, Anne Kristine; Broch, Kaspar; Tøllefsen, Ingvild Maria; Ryan, Liv; Bendz, Bjørn; Hopp, Einar; Kløw, Nils-Einar; Seljeflot, Ingebjørg; Halvorsen, Bente; Dahl, Tuva Børresdatter; Huse, Camilla; Andersen, Geir Øystein; Gullestad, Lars; Wiseth, Rune; Amundsen, Brage H.; Damås, Jan Kristian; Kleveland, Ola (Peer reviewed; Journal article, 2023)
      Background Tocilizumab improves myocardial salvage index (MSI) in patients with ST-elevation myocardial infarction (STEMI), but its mechanisms of action are unclear. Here, we explored how cytokines were affected by tocilizumab ...
    • Interleukin-6 inhibition in ST-elevation myocardial infarction: Immune cell profile in the randomised ASSAIL-MI trial 

      Huse, Camilla; Anstensrud, Anne Kristine; Michelsen, Annika Elisabet; Ueland, Thor; Broch, Kaspar; Woxholt, Sindre; Yang, Kuan; Sharma, Kapil Kishore; Tøllefsen, Ingvild Maria; Bendz, Bjørn; Amundsen, Brage H.; Damås, Jan Kristian; Berg, Erlend Sturle; Bjørkelund, Elisabeth; Quiles-Jiménez, Ana M T; Bjerkeli, Vigdis; Bendz, Christina; Kleveland, Ola; Stensæth, Knut Haakon; Opdahl, Anders; Kløw, Nils-Einar; Andersen, Geir Øystein; Wiseth, Rune; Halvorsen, Bente; Gullestad, Lars; Seljeflot, Ingebjørg; Aukrust, Pål; Osnes, Liv T. N.; Dahl, Tuva Børresdatter (Peer reviewed; Journal article, 2022)
      We recently showed that interleukin (IL)-6 inhibition by tocilizumab improves myocardial salvage in ST-elevation myocardial infarction (STEMI). However, the mechanisms for this effect are not clear. Methods In this ...
    • Interleukin-6 receptor inhibition with tocilizumab induces a selective and substantial increase in plasma IP-10 and MIP-1β in non-ST-elevation myocardial infarction 

      Kleveland, Ola; Ueland, Thor; Kunszt, Gabor; Bratlie, Marte; Yndestad, Arne; Broch, Kaspar; Holte, Espen; Ryan, Liv; Amundsen, Brage H.; Bendz, Bjørn; Aakhus, Svend; Espevik, Terje; Halvorsen, Bente; Mollnes, Tom Eirik; Wiseth, Rune; Gullestad, Lars; Aukrust, Pål; Damås, Jan Kristian (Journal article; Peer reviewed, 2018)
      Aim To evaluate the effect of interleukin-6 inhibition with tocilizumab on the cytokine network in patients with acute non-ST-elevation myocardial infarction (NSTEMI). Methods 117 patients with acute NSTEMI were randomised ...
    • Mitochondrial C5aR1 activity in macrophages controls IL-1β production underlying sterile inflammation 

      Niyonzima, Nathalie; Rahman, Jubayer; Kunz, Natalie; West, Erin; Freiwald, Tilo; Desai, Jigar V.; Merle, Nicolas; Gidon, Alexandre; Sporsheim, Bjørnar; Lionakis, Michail S.; Evensen, Kristin; Lindberg, Beate; Skagen, Karolina; Skjelland, Mona; Singh, Parul; Haug, Markus; Ruseva, Marieta M.; Kolev, Martin; Bibby, Jack; Marshall, Olivia; O’Brien, Brett; Deeks, Nigel; Afzali, Behdad; Clark, Richard J.; Woodruff, Trent M.; Pryor, Mylton; Yang, Zhi-Hong; Remaley, Alan T.; Mollnes, Tom Eirik; Hewitt, Stephen M.; Yan, Bingyu; Kazemian, Majid; Kiss, Mate G.; Binder, Christoph J.; Halvorsen, Bente; Espevik, Terje; Kemper, Claudia (Peer reviewed; Journal article, 2021)
      While serum-circulating complement destroys invading pathogens, intracellularly active complement, termed the “complosome,” functions as a vital orchestrator of cell-metabolic events underlying T cell effector responses. ...
    • Neuromodulatory effect of NLRP3 and ASC in neonatal hypoxic ischemic encephalopathy 

      Ystgaard, Martin Bogale; Scheffler, Katja; Suganthan, Rajikala; Bjørås, Magnar; Ranheim, Trine; Sagen, Ellen Lund; Halvorsen, Bente; Saugstad, Ola Didrik; Yndestad, Arne (Journal article; Peer reviewed, 2019)
      Background: Following birth asphyxia there is a robust inflammatory response. NLRP3 is a receptor of the innate immune system. Upon activation, NLRP3 forms an inflammasome together with ASC and procaspase-1 to mediate ...
    • OXR1A, a Coactivator of PRMT5 Regulating Histone Arginine Methylation 

      Yang, Mingyi; Lin, Xiaolin; Segers, Filip; Suganthan, Rajikala; Hildrestrand, Gunn Annette; Rinholm, Johanne Egge; Aas, Per Arne; Sousa, Mirta; Holm, Sverre; Bolstad, Nils; Warren, David; Berge, Rolf Kristian; Johansen, Rune Forstrøm; Yndestad, Arne; Kristiansen, Elise; Klungland, Arne; Gomez, Luisa Fernanda Luna; Eide, Lars; Halvorsen, Bente; Aukrust, Pål; Bjørås, Magnar (Peer reviewed; Journal article, 2020)
      Oxidation resistance gene 1 (OXR1) protects cells against oxidative stress. We find that male mice with brain-specific isoform A knockout (Oxr1A−/−) develop fatty liver. RNA sequencing of male Oxr1A−/− liver indicates ...
    • Respiratory dysfunction three months after severe COVID-19 is associated with gut microbiota alterations 

      Vestad, Beate; Ueland, Thor; Lerum, Tøri Vigeland; Dahl, Tuva Børresdatter; Holm, Kristian; Barratt-Due, Andreas; Kåsine, Trine; Dyrhol-Riise, Anne Ma; Stiksrud, Birgitte; Tonby, Kristian; Hoel, Hedda; Olsen, Inge Christoffer; Henriksen, Katerina N.; Tveita, Anders Aune; Manotheepan, Ravinea; Haugli, Mette; Eiken, Ragnhild; Berg, Åse; Halvorsen, Bente; Lekva, Tove; Ranheim, Trine; Michelsen, Annika Elisabeth; Kildal, Anders Benjamin; Johannessen, Asgeir; Thoresen, Lars; Skudal, Hilde Kristin; Kittang, Bård Reiakvam; Olsen, Roy Bjørkholt; Ystrøm, Carl Magnus; Skei, Nina Vibeche; Hannula, Raisa; Aballi, Saad; Kvåle, Reidar; Skjønsberg, Ole Henning; Aukrust, Pål; Hov, Johannes Espolin Roksund; Trøseid, Marius (Peer reviewed; Journal article, 2022)
      Background - Although coronavirus disease 2019 (COVID-19) is primarily a respiratory infection, mounting evidence suggests that the gastrointestinal tract is involved in the disease, with gut barrier dysfunction and gut ...
    • Serum lipoprotein(a) is not modified by interleukin-6 receptor antagonism or associated with inflammation in non-ST-elevation myocardial infarction 

      Ueland, Thor; Kleveland, Ola; Michelsen, Annika; Wiseth, Rune; Damås, Jan Kristian; Holven, Kirsten Bjørklund; Aukrust, Pål; Gullestad, Lars; Yndestad, Arne; Halvorsen, Bente (Journal article; Peer reviewed, 2018)
      Background The IL-6 receptor antagonist tocilizumab has been shown to attenuate the proatherogenic lipoprotein a [Lp(a)] in rheumatoid arthritis. We evaluated if a single dose of tocilizumab reduced Lp(a) in patients with ...