World's Best Scientists 2026 revealed!
Ole Haagen Nielsen

Ole Haagen Nielsen

D-Index & Metrics

Medicine

D-Index
90
Citations
26987
World Ranking
12293
National Ranking
131

Ole Haagen Nielsen publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Ole Haagen Nielsen sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 480 publications — 54th percentile

54% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Ole Haagen Nielsen D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Ole Haagen Nielsen sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 90 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Ole Haagen Nielsen is affiliated with the University of Copenhagen in Denmark and has an extensive publication record primarily in the fields of Medicine and Biochemistry, Genetics and Molecular Biology. Their research spans multiple subfields, including Genetics, Oncology, Immunology, Surgery, and Epidemiology.

The scientist's work notably focuses on topics such as Inflammatory Bowel Disease, Microscopic Colitis, Cancer Cells and Metastasis, Pregnancy and Medication Impact, Eosinophilic Esophagitis, Cancer Immunotherapy and Biomarkers, and Gut Microbiota and Health.

Notable recent papers include:

  • Immune Profiling of Human Gut-Associated Lymphoid Tissue Identifies a Role for Isolated Lymphoid Follicles in Priming of Region-Specific Immunity, 2020, published in Immunity
  • Biologics for Inflammatory Bowel Disease and Their Safety in Pregnancy: A Systematic Review and Meta-analysis, 2020, published in Clinical Gastroenterology and Hepatology
  • Immune checkpoint Inhibitor-Induced diarrhea and Colitis: Incidence and Management. A systematic review and Meta-analysis, 2022, published in Cancer Treatment Reviews
  • Tuft Cells and Their Role in Intestinal Diseases, 2022, published in Frontiers in Immunology
  • Telomere dysfunction activates YAP1 to drive tissue inflammation, 2020, published in Nature Communications

Frequent co-authors with whom Ole Haagen Nielsen has collaborated extensively include John Gubatan, Lene Riis, Kim B. Jensen, Theresa Louise Boye, and Jakob Benedict Seidelin.

Their research is often published in venues such as Gastroenterology, Journal of Crohn's and Colitis, bioRxiv (Cold Spring Harbor Laboratory), Clinical Gastroenterology and Hepatology, and Annals of the Rheumatic Diseases.

Best Publications

  • Chronic inflammation: importance of NOD2 and NALP3 in interleukin-1beta generation

    L Ferrero-Miliani;O H Nielsen;P S Andersen;S E Girardin

  • Familial Occurrence of Inflammatory Bowel Disease

    Marianne Orholm;Pia Munkholm;Ebbe Langholz;Ole Haagen Nielsen

  • YAP/TAZ-Dependent Reprogramming of Colonic Epithelium Links ECM Remodeling to Tissue Regeneration

    Shiro Yui;Luca Azzolin;Martti Maimets;Marianne Terndrup Pedersen

  • Safety and efficacy of recombinant human interleukin 10 in chronic active Crohn's disease

    Stefan Schreiber;Richard N. Fedorak;Ole Haagen Nielsen;Gary Wild

  • Incidence and Prevalence of Crohn's Disease in the County of Copenhagen, 1962-87: A Sixfold Increase in Incidence

    P Munkholm;E Langholz;O H Nielsen;S Kreiner

  • Transplantation of Expanded Fetal Intestinal Progenitors Contributes to Colon Regeneration after Injury

    Robert P. Fordham;Shiro Yui;Shiro Yui;Nicholas R.F. Hannan;Christoffer Soendergaard

  • Extraintestinal manifestations of inflammatory bowel disease: epidemiology, diagnosis, and management.

    Signe Larsen;Klaus Bendtzen;Ole Haagen Nielsen

  • Incidence and prevalence of ulcerative colitis in Copenhagen county from 1962 to 1987.

    E. Langholz;P. Munkholm;O. Haagen Nielsen;S. Kreiner

  • Involvement of JAK/STAT signaling in the pathogenesis of inflammatory bowel disease

    Mehmet Coskun;Mohammad Salem;Jannie Pedersen;Ole Haagen Nielsen

  • Deviations in human gut microbiota: a novel diagnostic test for determining dysbiosis in patients with IBS or IBD

    C. Casén;H. C. Vebø;M. Sekelja;F. T. Hegge

  • Upregulation of interleukin-12 and -17 in active inflammatory bowel disease.

    O. H. Nielsen;I. Kirman;N. Rüdiger;J. Hendel

  • Established and emerging biological activity markers of inflammatory bowel disease

    Ole H Nielsen;Ben Vainer;Ben Vainer;Søren M Madsen;Søren M Madsen;Jacob B Seidelin;Jacob B Seidelin

  • Pregnancy in Ulcerative Colitis

    O H Nielsen;B Andreasson;S Bondesen;S Jarnum

  • Clinical Reviews: Established and Emerging Biological Activity Markers of Inflammatory Bowel Disease

    Ole H Nielsen;Ben Vainer;Søren M Madsen;Jacob B Seidelin

  • Urinary excretion of phthalate metabolites, phenols and parabens in rural and urban Danish mother-child pairs.

    Hanne Frederiksen;Jeanette Kolstrup Søgaard Nielsen;Thit Aarøe Mørck;Pernille Winton Hansen

  • Changes in Extent of Ulcerative Colitis A Study on the Course and Prognostic Factors

    E. Langholz;P. Munkholm;M. Davidsen;O. H. Nielsen

  • Tumor Necrosis Factor Inhibitors for Inflammatory Bowel Disease

    Ole Haagen Nielsen;Mark Andrew Ainsworth

  • Interleukin 10 (Tenovil) in the prevention of postoperative recurrence of Crohn's disease

    J F Colombel;Paul Rutgeerts;H Malchow;M Jacyna

  • Clinical Evidence Supporting the Radical Scavenger Mechanism of 5-Aminosalicylic Acid

    Ian Ahnfelt-Rønne;Ole Haagen Nielsen;Annelise Christensen;Ebbe Langholz

  • Tissue Localization of Human Trefoil Factors 1, 2, and 3

    Jens Madsen;Ole Nielsen;Ida Tornøe;Lars Thim

Frequent Co-Authors

Uffe Holmskov
Uffe Holmskov University of Southern Denmark
Gerhard Rogler
Gerhard Rogler University of Zurich
Klaus Bendtzen
Klaus Bendtzen Rigshospitalet
Henrik J. Ditzel
Henrik J. Ditzel University of Southern Denmark
Yulan Wang
Yulan Wang Nanyang Technological University
Pia Munkholm
Pia Munkholm University of Copenhagen
Finn Cilius Nielsen
Finn Cilius Nielsen Copenhagen University Hospital
Christian Torp-Pedersen
Christian Torp-Pedersen Aalborg University
Gunnar H. Gislason
Gunnar H. Gislason Copenhagen University Hospital
Jørgen H. Olsen
Jørgen H. Olsen Vanderbilt University Medical Center

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