Research output per year
Research output per year
Personal profile
Expertises
Specialist in gastroenterology as well as in internal medicine. Expert Advisor to the Danish Health and Medicines Authority in internal medicine.
Main research areas
Management of medical gastroenterological disorders - especially inflammatory bowel disease - with emphasis on cellular and molecular mechanisms of inflammation with relevance for clinical and pharmacological improvement of treatment hereof.
Current research
Current research focuses on improved diagnosis and pharmacological management of inflammatory bowel disease. In collaboration with national (BRIC and Statens Serum INstitut) and international research groups (Leuven, Amsterdam, Zürich and Ottawa) the importance of the intestinal barrier maintenance of homeostasis / development of inflammation is studied, including the importance of intestinal stem cells. Additionally, epidemiological cohort studies are performed in patients with inflammatory bowel disease.
Potential conflicts of interest
None
External positions
University of Copenhagen
2005 → …
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Immunogenicity of Therapeutic Antibodies Used for Inflammatory Bowel Disease: Treatment and Clinical Considerations
Nielsen, O. H., Hammerhøj, A., Ainsworth, M. A., Gubatan, J. & D'Haens, G., Jan 2025, In: Drugs. 85, 1, p. 67-85 19 p., e79397.Research output: Contribution to journal › Review › peer-review
4 Citations (Scopus) -
Diagnosis and Pharmacological Management of Microscopic Colitis in Geriatric Care
Nielsen, O. H. & Pardi, D. S., Feb 2024, In: Drugs & Aging. 41, 2, p. 113-123 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
7 Citations (Scopus) -
Effects of smoking on clinical treatment outcomes amongst patients with chronic inflammatory diseases initiating biologics: secondary analyses of the prospective BELIEVE cohort study
Larsen, M. G. R., Overgaard, S. H., Petersen, S. R., Møllegaard, K. M., Munk, H. L., Nexøe, A. B., Glerup, H., Guldmann, T., Pedersen, N., Saboori, S., Dahlerup, J. F., Hvas, C. L., Andersen, K. W., Jawhara, M., Haagen Nielsen, O., Bergenheim, F. O., Brodersen, J. B., Bygum, A., Ellingsen, T. & Kjeldsen, J. & 2 others, , Sept 2024, In: Scandinavian Journal of Immunology. 100, 3, e13395.Research output: Contribution to journal › Journal article › Research › peer-review
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Efficacy and Safety of Anthocyanin-Rich Extract in Patients with Ulcerative Colitis: A Randomized Controlled Trial
Biedermann, L., Doulberis, M., Schreiner, P., Nielsen, O. H., The, F. O., Brand, S., Burk, S., Hruz, P., Juillerat, P., Krieger-Grübel, C., Leu, K., Leventhal, G. E., Misselwitz, B., Scharl, S., Schoepfer, A., Seibold, F., Herfarth, H. & Rogler, G., 4 Dec 2024, In: Nutrients. 16, 23, 4197.Research output: Contribution to journal › Journal article › Research › peer-review
1 Citation (Scopus) -
Gut Microbiome and Disorders of the Gastrointestinal Tract
Hammerhøj, A., Gubatan, J. M. & Nielsen, O. H., Mar 2024, In: Microorganisms. 12, 3, 576.Research output: Contribution to journal › Editorial › peer-review
3 Citations (Scopus)