Publications 2024

Gregersen I, Kong XY, Kooijman S, Foyn H, Grannes H, Olsen MB, Lone AM, Yang K, Quiles-Jiménez A, Tran M, Øgaard J, Segers FM, Rashidi A, Sagen EL, Lauritzen KH, Pronk ACM, de Boer JF, Holven KB, Melum E, Aukrust P, Taskén K, Holm S, Rensen PCN, Dahl TB, Halvorsen B (2024)
T cells with increased responsiveness cause obesity in mice without diet intervention
iScience, 27 (4), 109471
DOI 10.1016/j.isci.2024.109471, PubMed 38551005

Gregersen I, Narverud I, Christensen JJ, Hovland A, Øyri LKL, Ueland T, Retterstøl K, Bogsrud MP, Aukrust P, Halvorsen B, Holven KB (2024)
Plasma legumain in familial hypercholesterolemia: associations with statin use and cardiovascular risk markers
Scand J Clin Lab Invest, 84 (1), 24-29
DOI 10.1080/00365513.2024.2309617, PubMed 38319290

Gregersen I, Scarth ME, Abdullah R, Thorsby PM, Hauger LE, Haugaa KH, Sagen EL, Michelsen AE, Ueland T, Edvardsen T, Aukrust P, Almaas VM, Bjørnebekk AK, Halvorsen B (2024)
Elevated interleukin 8 and matrix metalloproteinase 9 levels are associated with myocardial pathology in users of Anabolic-Androgenic Steroids
Eur J Prev Cardiol (in press)
DOI 10.1093/eurjpc/zwae126, PubMed 38573232

Publications 2023

Halvorsen B, Aukrust P, Dahl TB, Gregersen I (2023)
Increased cardiovascular mortality during the COVID-19 pandemic: do not neglect causality
Eur Heart J Open, 3 (6), oead119
DOI 10.1093/ehjopen/oead119, PubMed 38089856

Ueland T, Äikäs LAO, Dahl TB, Gregersen I, Olsen MB, Michelsen A, Schanke Y, Holopainen M, Ruhanen H, Singh S, NOR-SOLIDARITY Consortium, Tveita AA, Finbråten AK, Heggelund L, Trøseid M, Dyrhol-Riise AM, Nyman TA, Holven KB, Öörni K, Aukrust P, Halvorsen B (2023)
Low-density lipoprotein particles carrying proinflammatory proteins with altered aggregation pattern detected in COVID-19 patients 3 months after hospitalization
J Infect, 86 (5), 489-492
DOI 10.1016/j.jinf.2023.02.024, PubMed 36822413

Publications 2022

Gregersen I, Ueland T, Holter JC, Olsen MB, Michelsen AE, Murphy SL, Tveita AA, Henriksen KN, Hoel H, Nordberg LB, Holten AR, Edvardsen T, Yang K, Heggelund L, Trøseid M, Müller F, Kildal AB, Dyrhol-Riise AM, Barratt-Due A, Dahl TB, Aukrust P, Halvorsen B, NOR-SOLIDARITY consortium, The Norwegian SARS-CoV-2 Study Group investigators (2022)
CXCL16 associates with adverse outcome and cardiac involvement in hospitalized patients with Covid-19
J Infect, 85 (6), 702-769
DOI 10.1016/j.jinf.2022.09.029, PubMed 36216188

Karlsen TR, Olsen MB, Kong XY, Yang K, Quiles-Jiménez A, Kroustallaki P, Holm S, Lines GT, Aukrust P, Skarpengland T, Bjørås M, Dahl TB, Nilsen H, Gregersen I, Halvorsen B (2022)
NEIL3-deficient bone marrow displays decreased hematopoietic capacity and reduced telomere length
Biochem Biophys Rep, 29, 101211
DOI 10.1016/j.bbrep.2022.101211, PubMed 35079641

Olsen MB, Huse C, de Sousa MML, Murphy SL, Sarno A, Obermann TS, Yang K, Holter JC, Jørgensen MJ, Christensen EE, Wang W, Ji P, Heggelund L, Hoel H, Dyrhol-Riise AM, Gregersen I, Aukrust P, Bjørås M, Halvorsen B, Dahl TB (2022)
DNA Repair Mechanisms are Activated in Circulating Lymphocytes of Hospitalized Covid-19 Patients
J Inflamm Res, 15, 6629-6644
DOI 10.2147/JIR.S379331, PubMed 36514358

Quiles-Jiménez A, Dahl TB, Bjørås M, Alseth I, Halvorsen B, Gregersen I (2022)
Epitranscriptome in Ischemic Cardiovascular Disease: Potential Target for Therapies
Stroke, 53 (6), 2114-2122
DOI 10.1161/STROKEAHA.121.037581, PubMed 35240858

Publications 2021

Awoyemi A, Mayerhofer C, Felix AS, Hov JR, Moscavitch SD, Lappegård KT, Hovland A, Halvorsen S, Halvorsen B, Gregersen I, Svardal A, Berge RK, Hansen SH, Götz A, Holm K, Aukrust P, Åkra S, Seljeflot I, Solheim S, Lorenzo A, Gullestad L, Trøseid M, Broch K (2021)
Rifaximin or Saccharomyces boulardii in heart failure with reduced ejection fraction: Results from the randomized GutHeart trial
EBioMedicine, 70, 103511
DOI 10.1016/j.ebiom.2021.103511, PubMed 34329947

Holm S, Kared H, Michelsen AE, Kong XY, Dahl TB, Schultz NH, Nyman TA, Fladeby C, Seljeflot I, Ueland T, Stensland M, Mjaaland S, Goll GL, Nissen-Meyer LS, Aukrust P, Skagen K, Gregersen I, Skjelland M, Holme PA, Munthe LA, Halvorsen B (2021)
Immune complexes, innate immunity, and NETosis in ChAdOx1 vaccine-induced thrombocytopenia
Eur Heart J, 42 (39), 4064-4072
DOI 10.1093/eurheartj/ehab506, PubMed 34405870

Karlsen TR, Kong XY, Holm S, Quiles-Jiménez A, Dahl TB, Yang K, Sagen EL, Skarpengland T, S Øgaard JD, Holm K, Vestad B, Olsen MB, Aukrust P, Bjørås M, Hov JR, Halvorsen B, Gregersen I (2021)
NEIL3-deficiency increases gut permeability and contributes to a pro-atherogenic metabolic phenotype
Sci Rep, 11 (1), 19749
DOI 10.1038/s41598-021-98820-0, PubMed 34611194

Kong XY, Huse C, Yang K, Øgaard J, Berges N, Vik ES, Nawaz MS, Quiles-Jiménez A, Abbas A, Gregersen I, Holm S, Bjerkli V, Rashidi A, Fladeby C, Suganthan R, Sagen EL, Skjelland M, Lång A, Bøe SO, Bjørås M, Aukrust P, Alseth I, Halvorsen B, Dahl TB (2021)
Endonuclease V Regulates Atherosclerosis Through C-C Motif Chemokine Ligand 2-Mediated Monocyte Infiltration
J Am Heart Assoc, 10 (14), e020656
DOI 10.1161/JAHA.120.020656, PubMed 34259011

Olsen MB, Gregersen I, Sandanger Ø, Yang K, Sokolova M, Halvorsen BE, Gullestad L, Broch K, Aukrust P, Louwe MC (2021)
Targeting the Inflammasome in Cardiovascular Disease
JACC Basic Transl Sci, 7 (1), 84-98
DOI 10.1016/j.jacbts.2021.08.006, PubMed 35128212

Otterdal K, Berg A, Michelsen AE, Yndestad A, Patel S, Gregersen I, Halvorsen B, Ueland T, Langeland N, Aukrust P (2021)
IL-18 and IL-18 binding protein are related to disease severity and parasitemia during falciparum malaria
BMC Infect Dis, 21 (1), 1073
DOI 10.1186/s12879-021-06751-y, PubMed 34663245

Quiles-Jiménez A, Gregersen I, Segers FM, Skarpengland T, Kroustallaki P, Yang K, Kong XY, Lauritzen KH, Olsen MB, Karlsen TR, Nyman TA, Sagen EL, Bjerkeli V, Suganthan R, Nygård S, Scheffler K, Prins J, Van der Veer E, Øgaard JD, Fløisand Y, Jørgensen HF, Holven KB, Biessen EA, Nilsen H, Dahl TB et al. (2021)
DNA glycosylase Neil3 regulates vascular smooth muscle cell biology during atherosclerosis development
Atherosclerosis, 324, 123-132
DOI 10.1016/j.atherosclerosis.2021.02.023, PubMed 33714552

Skat-Rørdam J, Pedersen K, Skovsted GF, Gregersen I, Vangsgaard S, Ipsen DH, Latta M, Lykkesfeldt J, Tveden-Nyborg P (2021)
Vitamin C Deficiency May Delay Diet-Induced NASH Regression in the Guinea Pig
Antioxidants (Basel), 11 (1)
DOI 10.3390/antiox11010069, PubMed 35052573

Publications 2020

Gregersen I, Michelsen AE, Lunde NN, Åkerblom A, Lakic TG, Skjelland M, Ryeng Skagen K, Becker RC, Lindbäck J, Himmelmann A, Solberg R, Johansen HT, James SK, Siegbahn A, Storey RF, Kontny F, Aukrust P, Ueland T, Wallentin L, Halvorsen B (2020)
Legumain in Acute Coronary Syndromes: A Substudy of the PLATO (Platelet Inhibition and Patient Outcomes) Trial
J Am Heart Assoc, 9 (17), e016360
DOI 10.1161/JAHA.120.016360, PubMed 32809893

Kong XY, Vik ES, Nawaz MS, Berges N, Dahl TB, Vågbø C, Suganthan R, Segers F, Holm S, Quiles-Jiménez A, Gregersen I, Fladeby C, Aukrust P, Bjørås M, Klungland A, Halvorsen B, Alseth I (2020)
Deletion of Endonuclease V suppresses chemically induced hepatocellular carcinoma
Nucleic Acids Res, 48 (8), 4463-4479
DOI 10.1093/nar/gkaa115, PubMed 32083667

Niyonzima N, Bakke SS, Gregersen I, Holm S, Sandanger Ø, Orrem HL, Sporsheim B, Ryan L, Kong XY, Dahl TB, Skjelland M, Sørensen KK, Rokstad AM, Yndestad A, Latz E, Gullestad L, Andersen GØ, Damås JK, Aukrust P, Mollnes TE, Halvorsen B, Espevik T (2020)
Cholesterol crystals use complement to increase NLRP3 signaling pathways in coronary and carotid atherosclerosis
EBioMedicine, 60, 102985
DOI 10.1016/j.ebiom.2020.102985, PubMed 32927275

Olsen MB, Gregersen I (2020)
[The role of the immune system in severe COVID-19]
Tidsskr Nor Laegeforen, 140 (18)
DOI 10.4045/tidsskr.20.0860, PubMed 33322861

Olsen MB, Gregersen I (2020)
The role of the immune system in severe covid-19
Tidsskr. Nor. Laegeforen., 140 (18), 1821

Otterdal K, Berg A, Michelsen AE, Patel S, Gregersen I, Sagen EL, Halvorsen B, Yndestad A, Ueland T, Langeland N, Aukrust P (2020)
Plasma levels of interleukin 27 in falciparum malaria is increased independently of co-infection with HIV: potential immune-regulatory role during malaria
BMC Infect Dis, 20 (1), 65
DOI 10.1186/s12879-020-4783-8, PubMed 31964363

Quiles-Jiménez A, Gregersen I, Mittelstedt Leal de Sousa M, Abbas A, Kong XY, Alseth I, Holm S, Dahl TB, Skagen K, Skjelland M, Aukrust P, Bjørås M, Halvorsen B (2020)
N6-methyladenosine in RNA of atherosclerotic plaques: An epitranscriptomic signature of human carotid atherosclerosis
Biochem Biophys Res Commun, 533 (4), 631-637
DOI 10.1016/j.bbrc.2020.09.057, PubMed 33004177

Publications 2019

Fosshaug LE, Colas RA, Anstensrud AK, Gregersen I, Nymo S, Sagen EL, Michelsen A, Vinge LE, Øie E, Gullestad L, Halvorsen B, Hansen TV, Aukrust P, Dalli J, Yndestad A (2019)
Early increase of specialized pro-resolving lipid mediators in patients with ST-elevation myocardial infarction
EBioMedicine, 46, 264-273
DOI 10.1016/j.ebiom.2019.07.024, PubMed 31345784

Gregersen I, Høibraaten E, Holven KB, Løvdahl L, Ueland T, Mowinckel MC, Dahl TB, Aukrust P, Halvorsen B, Sandset PM (2019)
Effect of hormone replacement therapy on atherogenic lipid profile in postmenopausal women
Thromb Res, 184, 1-7
DOI 10.1016/j.thromres.2019.10.005, PubMed 31677448

Lunde NN, Gregersen I, Ueland T, Shetelig C, Holm S, Kong XY, Michelsen AE, Otterdal K, Yndestad A, Broch K, Gullestad L, Nyman TA, Bendz B, Eritsland J, Hoffmann P, Skagen K, Gonçalves I, Nilsson J, Grenegård M, Poreba M, Drag M, Seljeflot I, Sporsheim B, Espevik T, Skjelland M et al. (2019)
Legumain is upregulated in acute cardiovascular events and associated with improved outcome - potentially related to anti-inflammatory effects on macrophages
Atherosclerosis, 296, 74-82
DOI 10.1016/j.atherosclerosis.2019.12.008, PubMed 31870625

Macpherson ME, Halvorsen B, Yndestad A, Ueland T, Mollnes TE, Berge RK, Rashidi A, Otterdal K, Gregersen I, Kong XY, Holven KB, Aukrust P, Fevang B, Jørgensen SF (2019)
Impaired HDL Function Amplifies Systemic Inflammation in Common Variable Immunodeficiency
Sci Rep, 9 (1), 9427
DOI 10.1038/s41598-019-45861-1, PubMed 31263122

Publications 2018

Orrem HL, Nilsson PH, Pischke SE, Kleveland O, Yndestad A, Ekholt K, Damås JK, Espevik T, Bendz B, Halvorsen B, Gregersen I, Wiseth R, Andersen GØ, Ueland T, Gullestad L, Aukrust P, Barratt-Due A, Mollnes TE (2018)
IL-6 Receptor Inhibition by Tocilizumab Attenuated Expression of C5a Receptor 1 and 2 in Non-ST-Elevation Myocardial Infarction
Front Immunol, 9, 2035
DOI 10.3389/fimmu.2018.02035, PubMed 30258440

Skarpengland T, Skjelland M, Kong XY, Skagen K, Holm S, Otterdal K, Dahl CP, Krohg-Sørensen K, Sagen EL, Bjerkeli V, Aamodt AH, Abbas A, Gregersen I, Aukrust P, Halvorsen B, Dahl TB (2018)
Increased Levels of Lectin-Like Oxidized Low-Density Lipoprotein Receptor-1 in Ischemic Stroke and Transient Ischemic Attack
J Am Heart Assoc, 7 (2)
DOI 10.1161/JAHA.117.006479, PubMed 29330254

Publications 2017

Gregersen I, Sandanger Ø, Askevold ET, Sagen EL, Yang K, Holm S, Pedersen TM, Skjelland M, Krohg-Sørensen K, Hansen TV, Dahl TB, Otterdal K, Espevik T, Aukrust P, Yndestad A, Halvorsen B (2017)
Interleukin 27 is increased in carotid atherosclerosis and promotes NLRP3 inflammasome activation
PLoS One, 12 (11), e0188387
DOI 10.1371/journal.pone.0188387, PubMed 29176764

Publications 2016

Halvorsen B, Santilli F, Scholz H, Sahraoui A, Gulseth HL, Wium C, Lattanzio S, Formoso G, Di Fulvio P, Otterdal K, Retterstøl K, Holven KB, Gregersen I, Stavik B, Bjerkeli V, Michelsen AE, Ueland T, Liani R, Davi G, Aukrust P (2016)
LIGHT/TNFSF14 is increased in patients with type 2 diabetes mellitus and promotes islet cell dysfunction and endothelial cell inflammation in vitro
Diabetologia, 59 (10), 2134-44
DOI 10.1007/s00125-016-4036-y, PubMed 27421726

Lunde NN, Holm S, Dahl TB, Elyouncha I, Sporsheim B, Gregersen I, Abbas A, Skjelland M, Espevik T, Solberg R, Johansen HT, Halvorsen B (2016)
Increased levels of legumain in plasma and plaques from patients with carotid atherosclerosis
Atherosclerosis, 257, 216-223
DOI 10.1016/j.atherosclerosis.2016.11.026, PubMed 27940038

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
DOI 10.1016/j.atherosclerosis.2016.01.033, PubMed 26868510

Skarpengland T, Dahl TB, Skjelland M, Scheffler K, de Sousa MML, Gregersen I, Kuśnierczyk A, Sharma A, Slupphaug G, Eide L, Segers FM, Skagen KR, Dahl CP, Russell D, Folkersen L, Krohg-Sørensen K, Holm S, Bjørås M, Aukrust P, Halvorsen B (2016)
Enhanced base excision repair capacity in carotid atherosclerosis may protect nuclear DNA but not mitochondrial DNA
Free Radic Biol Med, 97, 386-397
DOI 10.1016/j.freeradbiomed.2016.07.001, PubMed 27381496

Skarpengland T, Holm S, Scheffler K, Gregersen I, Dahl TB, Suganthan R, Segers FM, Østlie I, Otten JJ, Luna L, Ketelhuth DF, Lundberg AM, Neurauter CG, Hildrestrand G, Skjelland M, Bjørndal B, Svardal AM, Iversen PO, Hedin U, Nygård S, Olstad OK, Krohg-Sørensen K, Slupphaug G, Eide L, Kuśnierczyk A et al. (2016)
Neil3-dependent base excision repair regulates lipid metabolism and prevents atherosclerosis in Apoe-deficient mice
Sci Rep, 6, 28337
DOI 10.1038/srep28337, PubMed 27328939

Publications 2015

Abbas A, Gregersen I, Holm S, Daissormont I, Bjerkeli V, Krohg-Sørensen K, Skagen KR, Dahl TB, Russell D, Almås T, Bundgaard D, Alteheld LH, Rashidi A, Dahl CP, Michelsen AE, Biessen EA, Aukrust P, Halvorsen B, Skjelland M (2015)
Interleukin 23 levels are increased in carotid atherosclerosis: possible role for the interleukin 23/interleukin 17 axis
Stroke, 46 (3), 793-9
DOI 10.1161/STROKEAHA.114.006516, PubMed 25649806

Gregersen I, Holm S, Dahl TB, Halvorsen B, Aukrust P (2015)
A focus on inflammation as a major risk factor for atherosclerotic cardiovascular diseases
Expert Rev Cardiovasc Ther, 14 (3), 391-403
DOI 10.1586/14779072.2016.1128828, PubMed 26641944

Publications 2013

Gregersen I, Skjelland M, Holm S, Holven KB, Krogh-Sørensen K, Russell D, Askevold ET, Dahl CP, Ørn S, Gullestad L, Mollnes TE, Ueland T, Aukrust P, Halvorsen B (2013)
Increased systemic and local interleukin 9 levels in patients with carotid and coronary atherosclerosis
PLoS One, 8 (8), e72769
DOI 10.1371/journal.pone.0072769, PubMed 24023645