The vision of TREC is to diminish the suffering and burden of venous thrombosis by discovering novel risk factors and disease mechanisms to facilitate personalized prevention and treatment.
TREC is a translational research center which fosters the multidirectional integration of laboratory-, patient-oriented-, and population-based research.
Collaborative study identified new plasma proteins associated with VTE
11.02.2026
New PhDs graduated from TREC
09.12.2025
TREC affiliated MD students have graduated from the Research program in medicine
Collaborative study identified new plasma proteins associated with VTE
The mechanisms leading to venous thromboembolism (VTE) remains incompletely understood. In a recent study published in Circulation, researchers from TREC in collaboration with colleagues from research centers in USA and at NTNU analyzed the plasma proteome (5000-7000 proteins) from three US cohorts (MESA, CHS and ARIC) and one Norwegian cohort (HUNT) to identify potential novel risk factors for VTE. Researchers identified 23 proteins that were associated with VTE, of which 15 were new in the context of VTE. Of the 23 proteins identified, 16 were available in the UK biobank, and of these, 11 were replicated (i.e., also associated with VTE in the UK biobank study). The newly identified proteins are involved in processes like immune system interactions, tissue repair and remodeling, and vascular aging. The proteins may potentially be new targets for risk assessment and prevention of VTE.
Illustration: Newly identified circulating plasma proteins may be involved in blood clot development. Published: 27.03.2026
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New PhDs graduated from TREC
Christabel Esi Damoah and Birgitte Tøndel defended their doctoral thesis in December 2025 and January 2026, respectively. TREC congratulates them with their new degree!
Christabel Esi Damoah defended her thesis entitled «The Involvement of the Complement Lectin Pathway in Venous Thromboembolism» on December 18, 2025, with Professor Bengt Zöller (University of Lund) and Docent Maria Bruzelius (Karolinska Institutet) as opponents.
Birgitte Gladsø Tøndel defended her thesis «The risk of venous thromboembolism after ischemic stroke» on Januar 22, 2026. The opponents were Karina Meijer (University Medical Center Groningen) and Marcus Lind (Umeå University).
PhD defenses for Birgitte Tøndel (left) and Christabel Damoah (right) Foto: Sigrid Brækkan Published: 11.02.2026
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TREC affiliated MD students have graduated from the Research program in medicine
Feiring med kake etter forskerlinjeeksamen Foto: John-Bjarne Hansen
The Research Program in Medicine (Forskerlinjen) at UiT The Arctic University of Norway is a 120 ECTS credit program, of which 30 credits are for PhD courses and 90 credits are for a research project. The program is anually offered to 10 MD students who wish to pursue a research career. The program provides students with practical research experience, training in research methods and critical thinking, along with a solid foundation for further PhD studies. The Research Program in Medicine ends with oral examination consisting of 20 minutes presentation of the student’s research project by the students followed by 40 minutes defense with one external and one internal examinator during the sixth year at medical school.
During the last 15 years, the Thrombosis Research Group (TREC) has recruited 1-2 of the students elected for the research program annually for thrombosis-related projects. This year, however, we had for the first time 3 MD/PhD students (Camilla Langholm, Nikolai Hagensen Eide, and Asbjørn Lund Onsaker) that graduated from the program on Friday November 28. They all presented papers published in high-ranked medical journals and defended their projects exceptionally well during the scientific discussions. The external evaluator for all three graduations was professor Pål Andre Holme from the University of Oslo.
The achievements were traditionally celebrated with coffee and cake immediately after graduation with colleagues, family and friends in TREC premises at UiT.
The following papers were discussed during the exams:
Clinical epidemiology and risk factors of venous thromboembolism, Diagnostic and predictive biomarkers of venous thromboembolism, Pathophysiology of venous thromboembolism
Current positions:
Head of Thrombosis Research Group (TREC)
Head of Thrombosis Research Center (TREC), University Hospital of North Norway
Publications
>300 original full papers in peer-reviewed journals listed in PubMed and 22 review articles and 12 book chapters. Contributed to >370 abstracts presented at and published in conjunction with scientific international meetings/conferences. H-index: 51.
Supervision of PhD-students and postdoctors
Completed PhDs: Main supervisor: 35; Co-supervisor: 5
Ongoing PhDs: 7 as main supervisor and 6 as co-supervisor
Mentor for 13 previous and 3 present postdoctors
Other relevant professional experiences
2016-21 Chair of the Subcommittee Diagnostic and predictive variables, ISTH
2015-20 Member of the scientific program committee of the European Haematology Association (EHA)
2015- Member of the organization committee of the European Congress of Thrombosis and Haemostasis (ECTH)
2015 - Associate investigator Centre for Molecular Medicine Norway (NCMM)
2014 -20 Associate editor Journal of Thrombosis and Haemostasis
My main research interest is the epidemiology and pathogenesis of venous thromboembolism (VTE). In order to optimize prevention and treatment of the disease, it is crucial to better understand the mechanisms of venous thrombus formation and how risk factors contribute to or interplay in this process.
I have trained as an epidemiologist within the field of thrombosis and hemostasis, and worked with studies on the relationship between arterial and venous thrombosis, life-style factors and VTE, biomarkers for future VTE, cancer-related VTE, as well as complications after VTE.
Affiliated with TREC in 20% Professor II position, employed by UNN. Full-time Professor at Department of Clinical Medicine, UiO (Research Group: Inflammatory biomarkers in cardiovascular and metabolic disease)
I am a medical doctor and approved specialist in Internal Medicine and Hematology in Brazil. I obtained my first PhD (Hematology) in Brazil in 2000. Given my growing interest in research on the epidemiology of venous thromboembolism (VTE), I moved to the Netherlands in 2014 and started a second PhD at the Department of Clinical Epidemiology (Leiden University Medical Center - LUMC). After obtaining my PhD at LUMC in 2017, I joined the Thrombosis Research Group (TREC) at UiT – The Arctic University of Norway as a researcher.
My main research interest is the epidemiology and pathophysiology of VTE, with a special focus on the investigation of novel VTE biomarkers that could serve as potential targets for VTE prevention and treatment. I have contributed to >65 original full papers in peer-reviewed journals in PUBMED (about 60% of which published from 2019 onwards). I have supervised 3 PhD-students as main supervisor and 4 as co-supervisor to completion of PhD. I am currently main supervisor for 2 and co-supervisor for 4 PhD-students. Since 2022, I have served as Associate Editor in Research and Practice in Thrombosis and Haemostasis (RPTH), the Open Access journal of the International Society on Thrombosis and Haemostasis (ISTH). In 2021 and 2022, I received awards for Outstanding Editorial Board Performance in RPTH.
Department of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, 9037 Norway
Pharmacy Building, 4th Floor (F4.210), Universitetsvegen 57, 9019 Tromsø john-bjarne.hansen@uit.no Show map