Olav Inge Klingenberg

Associate Professor - Department of Medical Biochemistry
Image of Olav Inge Klingenberg
Norwegian version of this page
Visiting address Sognsvannsveien 20 Rikshospitalet 0372 Oslo
Postal address Postboks 4950 Nydalen OUS HF Rikshospitalet 0424 Oslo


  • Amundsen, Erik Koldberg; Binde, Christina; Christensen, Erik Egeland; Klingenberg, Olav Inge; Kvale, Dag & Holten, Aleksander Rygh (2021). Prognostic Value of Nucleated RBCs for Patients With Suspected Sepsis in the Emergency Department: A Single-Center Prospective Cohort Study. Critical care explorations. ISSN 2639-8028. doi: 10.1097/CCE.0000000000000490.
  • Rosseland, Leiv Arne; Bekkenes, Maria; Jørgensen, Marte Morin; Flem Jacobsen, Anne; Fagerland, Morten & Rakstad-Larsen, Helene [Show all 10 contributors for this article] (2021). A study protocol for the cardiac effects of a single dose of either oxytocin 2.5 IU or carbetocin 100 g after caesarean delivery: A prospective randomized controlled multi-centre trial in Norway. F1000. ISSN 1759-796X. 10. doi: 10.12688/f1000research.73112.1.
  • Grimholt, Runa M.; Fjeld, Bente & Klingenberg, Olav (2021). Hemoglobinopathy gone astray—three novel forms of α-thalassemia in Norwegian patients characterized by quantitative real-time PCR and DNA sequencing. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. doi: 10.1080/00365513.2021.2004218.
  • Holm, Are Martin; Andreassen, Siw Lillevik; Christensen, Vivi Lycke; Kongerud, Johny; Almås, Øystein & Auråen, Henrik [Show all 10 contributors for this article] (2020). Hypogammaglobulinemia and risk of exacerbation and mortality in patients with COPD. The International Journal of Chronic Obstructive Pulmonary Disease. ISSN 1176-9106. 15, p. 799–807. doi: 10.2147/COPD.S236656. Full text in Research Archive
  • Grimholt, Runa Marie; Fjeld, Bente; Selsås, Hilde; Schwettmann, Lutz & Klingenberg, Olav (2019). Hb Aalesund (HBA2: c.400_406delAGCACCG), an Unstable α-Globin Variant Found in a Norwegian Patient Causing Moderate Hemolytic Anemia and Falsely High Hb A1c Using Ion Exchange High Performance Liquid Chromatography. Hemoglobin. ISSN 0363-0269. 43(2), p. 122–125. doi: 10.1080/03630269.2019.1614048. Full text in Research Archive
  • Grimholt, Runa Marie; Harteveld, Cornelis; Arkesteijn, Sandra G J; Fjeld, Bente & Klingenberg, Olav (2018). Characterization of Two Deep Intronic Variants on the β-Globin Gene with Inconsistent Interpretations of Clinical Significance. Hemoglobin. ISSN 0363-0269. 42(2), p. 126–128. doi: 10.1080/03630269.2018.1473255. Full text in Research Archive
  • Grimholt, Runa Marie; Vestli, Anne; Urdal, Petter; Bechensteen, Anne Grete; Fjeld, Bente & Dalhus, Bjørn [Show all 7 contributors for this article] (2018). Hb Oslo [β42(CD1)Phe→Ile; HBB: c.127T>A]: A novel unstable hemoglobin variant found in a Norwegian patient. Hemoglobin. ISSN 0363-0269. 42(2), p. 78–83. doi: 10.1080/03630269.2018.1468773. Full text in Research Archive
  • Klingenberg, Olav; Furuset, Torill; Hestbråten, Camilla Røising; Hallberg, Marit Hansen; Steiro, Astrid & Orset, Iren Røstbakken [Show all 7 contributors for this article] (2017). HbA1c analysis by capillary electrophoresis?comparison with chromatography and an immunological method. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 77(6), p. 458–464. doi: 10.1080/00365513.2017.1338747. Full text in Research Archive
  • Sagedal, Solbjørg; Sandvik, Leiv; Klingenberg, Olav & Sandset, Per Morten (2017). β-Thromboglobulin may not reflect platelet activation during haemodialysis with the HeprAN membrane. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 77(8), p. 679–684. doi: 10.1080/00365513.2017.1397288.
  • Sudmann, Åshild Amelie; Piehler, Armin; Klingenberg, Olav & Urdal, Petter (2015). Six-day stability of erythrocyte and reticulocyte parameters in-vitro: A comparison of blood samples from healthy, iron-deficient, and thalassemic individuals. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 75(3), p. 247–253. doi: 10.3109/00365513.2014.1000370.
  • Berntsen, Natalie Lie; Klingenberg, Olav; Juran, Brian D.; Benito De Valle, Maria; Lindkvist, Björn & Lazaridis, Konstantinos N. [Show all 9 contributors for this article] (2015). Association between HLA haplotypes and increased serum levels of IgG4 in patients with primary sclerosing cholangitis. Gastroenterology. ISSN 0016-5085. 148(5), p. 924–927.e2. doi: 10.1053/j.gastro.2015.01.041.
  • Urdal, Petter; Amundsen, Erik Koldberg; Toska, Karin & Klingenberg, Olav (2014). Automated alarm to detect antigen excess in serum free immunoglobulin light chain kappa and lambda assays. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 74(7), p. 575–581. doi: 10.3109/00365513.2014.915426.
  • Grimholt, Runa Marie; Urdal, Petter; Klingenberg, Olav & Piehler, Armin (2014). Rapid and reliable detection of alpha-globin copy number variations by quantitative real-time PCR. BMC Hematology. ISSN 2052-1839. doi: 10.1186/2052-1839-14-4.
  • Bachmann-Harildstad, Gregor; Stenklev, Niels Chr.; Myrvoll, Elin Alise; Jablonski, Greg & Klingenberg, Olav (2011). Beta-Trace Protein as a Diagnostic Marker for Perilymphatic Fluid Fistula: A Prospective Controlled Pilot Study to Test a Sample Collection Technique. Otology & Neurotology. ISSN 1531-7129. 32(1), p. 7–10. doi: 10.1097/MAO.0b013e3181fc74d0.
  • Sagedal, Solbjørg; Witczak, Bartlomiej J; Osnes, Kåre; Hartmann, Anders; Os, Ingrid & Eikvar, Lars Kristian [Show all 8 contributors for this article] (2011). A Heparin-Coated Dialysis Filter (AN69 ST) Does Not Reduce Clotting during Hemodialysis when Compared to a Conventional Polysulfone Filter (F x 8). Blood Purification. ISSN 0253-5068. 32(3), p. 151–155. doi: 10.1159/000325227.
  • Henriksson, Carola Elisabeth; Hellum, Marit Synnøve; Haug, Kari Bente Foss; Aass, Hans Christian; Joø, Gun Brit & Øvstebø, Reidun [Show all 9 contributors for this article] (2011). Anticoagulant effects of an antidiabetic drug on monocytes in vitro. Thrombosis Research. ISSN 0049-3848. 128(5), p. E100–E106. doi: 10.1016/j.thromres.2011.07.007.
  • Jensen, Torstein; Kierulf, Peter; Sandset, Per Morten; Klingenberg, Olav; Joø, Gun Brit & Godal, Hans Chr [Show all 7 contributors for this article] (2007). Fibrinogen and fibrin induce synthesis of proinflammatory cytokines from peripheral blood mononuclear cells. Thrombosis and Haemostasis. ISSN 0340-6245. 97(5), p. 822–829. doi: 10.1160/TH07-01-0039.

View all works in Cristin

  • Fjeld, Bente; Sudmann-Day, Åshild Amelie; Grimholt, Runa Marie & Klingenberg, Olav (2019). Kan pasienten ha talassemi eller en hemoglobinvariant? Tidsskrift for Den norske legeforening. ISSN 0029-2001. 139(17). doi: 10.4045/tidsskr.19.0121.
  • Klingenberg, Olav (2017). Hemoglobin amino acids by the numbers. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 77(1), p. 1–1. doi: 10.1080/00365513.2017.1267428.
  • Grimholt, Runa Marie; Fjeld, Bente; Klingenberg, Olav & Piehler, Armin P (2017). Alfa-thalassemi på avveie – sjeldne former for alfa-thalassemi funnet hos norske pasienter.
  • Grimholt, Runa Marie; Fjeld, Bente; Piehler, Armin & Klingenberg, Olav (2017). Chasing the Northern Light - (--)NOR and (αα) Aurora Borealis; two novel deletions causing alpha-thalassemia found in Norwegian patients.
  • Grimholt, Runa Marie; Sudmann, Åshild Amelie; Piehler, Armin; Urdal, Petter & Klingenberg, Olav (2014). Hb Ullevaal [β78(EF2)Leu→Val; HBB: c.235C>G], a New Hemoglobin Variant Interfering with Hb A1c Measurement Using a Cation Exchange High Performance Liquid Chromatography Method. Hemoglobin. ISSN 0363-0269. 38(2), p. 130–132. doi: 10.3109/03630269.2013.858640.
  • Hausken, Jon; Klingenberg, Olav; Mørkrid, Lars; Rollag, Halvor; Foss, Aksel & Midtvedt, Karsten (2012). Elevated Troponin I and NT-proBNP at the Time of Transplantation May Predict a Major Adverse Cardiac Event in the Early Postoperative Period After Renal Transplantation. Transplantation. ISSN 0041-1337. 94(2), p. E15–E16. doi: 10.1097/TP.0b013e31825b7633.

View all works in Cristin

Published Aug. 13, 2014 10:53 AM - Last modified Dec. 3, 2014 10:21 AM

Research groups