Blar i forfatter "Skagen, Karolina Ryeng"

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    • Immune complexes, innate immunity, and NETosis in ChAdOx1 vaccine-induced thrombocytopenia 

      Holm, Sverre; Kared, Hassen; Michelsen, Annika Elisabet; Kong, Xiang Yi; Dahl, Tuva Børresdatter; Schultz, Nina Haagenrud; Nyman, Tuula Anneli; Fladeby, Cathrine; Seljeflot, Ingebjørg; Ueland, Thor; Stensland, Maria; Mjaaland, Siri; Goll, Guro Løvik; Nissen-Meyer, Lise Sofie Haug; Aukrust, Pål; Skagen, Karolina Ryeng; Gregersen, Ida; Skjelland, Mona; Holme, Pål Andre; Munthe, Ludvig Andre; Halvorsen, Bente (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-18)
      Aims - We recently reported five cases of vaccine-induced immune thrombotic thrombocytopenia (VITT) 7–10 days after receiving the first dose of the ChAdOx1 nCoV-19 adenoviral vector vaccine against corona virus disease 2019 (COVID-19). We aimed to investigate the pathogenic immunological responses operating in these patients.<p> <p>Methods and results - We assessed circulating inflammatory markers ...

    • Legumain in Acute Coronary Syndromes: A Substudy of the PLATO (Platelet Inhibition and Patient Outcomes) Trial 

      Gregersen, Ida; Michelsen, Annika; Lunde, Ngoc Nguyen; Åkerblom, Axel; Lakic, Tatevik G.; Skjelland, Mona; Skagen, Karolina Ryeng; Becker, Richard C.; Lindbäck, Johan; Himmelmann, Anders; Solberg, Rigmor; Johansen, Harald Thidemann; James, Stefan K.; Siegbahn, Agneta; Storey, Robert F.; Kontny, Frederic; Aukrust, Pål; Ueland, Thor; Wallentin, Lars; Halvorsen, Bente (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-15)
      <i>Background</i> - The cysteine protease legumain is increased in patients with atherosclerosis, but its causal role in atherogenesis and cardiovascular disease is still unclear. The aim of the study was to investigate the association of legumain with clinical outcome in a large cohort of patients with acute coronary syndrome.<p><p> <i>Methods and Results</i> - Serum levels of legumain were ...

    • Legumain is upregulated in acute cardiovascular events and associated with improved outcome – potentially related to anti-inflammatory effects on macrophages 

      Lunde, Ngoc Dieu Nguyen; Gregersen, Ida; Ueland, Thor; Shetelig, Christian; Holm, Sverre; Kong, Xiang Yi; Michelsen, Annika; Otterdal, Kari; Yndestad, Arne; Broch, Kaspar; Gullestad, Lars; Nyman, Tuula Anneli; Bendz, Bjørn; Eritsland, Jan; Hoffmann, Pavel; Skagen, Karolina Ryeng; Gonçalves, Isabel; Nilsson, Jan; Grenegård, Magnus; Poreba, Marcin; Drag, Marcin; Seljeflot, Ingebjørg; Sporsheim, Bjørnar; Espevik, Terje; Skjelland, Mona; Johansen, Harald Thidemann; Solberg, Rigmor; Aukrust, Pål; Björbacka, Harry; Andersen, Geir Øystein; Halvorsen, Bente (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-14)
      <i>Background and aims</i> - We have previously found increased levels of the cysteine protease legumain in plasma and plaques from patients with carotid atherosclerosis. This study further investigated legumain during acute cardiovascular events.<p><p> <i>Methods</i> - Circulating levels of legumain from patients and legumain released from platelets were assessed by enzyme-linked-immunosorbent ...

    • Vaccine associated benign headache and cutaneous hemorrhage after ChAdOx1 nCoV-19 vaccine: A cohort study 

      Schultz, Nina Haagenrud; Søraas, Arne Vasli; Sørvoll, Ingvild Hausberg; Akkøk, Cigdem Ahaein; Vetlesen, Annette; Bhamra, Jagjit Singh; Ahlen, Maria Therese; Holme, Pål Andre; Aamodt, Anne Hege; Skagen, Karolina Ryeng; Skattør, Thor Håkon; Skjelland, Mona; Wiedmann, Markus (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-17)
      Objectives Fatal complications have occurred after vaccination with ChAdOx1 nCoV-19, a vaccine against Covid-19. Vaccine-induced immune thrombotic thrombocytopenia (VITT) with severe outcome is characterized by venous thrombosis, predominantly in cerebral veins, thrombocytopenia and anti-PF4/polyanion antibodies. Prolonged headaches and cutaneous hemorrhages, frequently observed after the ChAdOx1 ...

    • Vaccine Induced Immune Thrombotic Thrombocytopenia Causing a Severe Form of Cerebral Venous Thrombosis With High Fatality Rate: A Case Series 

      Wiedmann, Markus; Skattør, Thor Håkon; Stray-Pedersen, Arne; Romundstad, Luis Georg; Antal, Ellen-Ann; Marthinsen, Pål Bache; Sørvoll, Ingvild Hausberg; Ernstsen, Siw Leiknes; Lund, Christian G.; Holme, Pål Andre; Johansen, Tonje Okkenhaug; Brunborg, Cathrine; Aamodt, Anne Hege; Schultz, Nina Haagenrud; Skagen, Karolina Ryeng; Skjelland, Mona Elisabeth (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-30)
      During a 2-week period, we have encountered five cases presenting with the combination of cerebral venous thrombosis (CVT), intracerebral hemorrhage and thrombocytopenia. A clinical hallmark was the rapid and severe progression of disease in spite of maximum treatment efforts, resulting in fatal outcome in for 4 out of 5 patients. All cases had received ChAdOx1 nCov-19 vaccine 1–2 weeks earlier and ...