Gregor Jemec

Gregor Jemec

Clinical Professor

Member of:

  • Dermatovenerology


  1. 2024
  2. E-pub ahead of print

    The Global Hidradenitis Suppurativa Atlas (GHiSA) Methodology: Combining Global Proportions in a Pooled Analysis

    Bouazzi, D., Andersen, Rune Kjærsgaard, Vinding, Gabrielle Randskov, Medianfar, C. E., Nielsen, S. M., Saunte, Ditte Marie, Chandran, N. S., van der Zee, H. H., Zouboulis, C. C., Benhadou, F., Villumsen, B., Alavi, A., Ibekwe, P. U., Hamzavi, I. H., Ingram, J. R., Naik, H. B., Garg, A., Boer, J., Christensen, R. & Jemec, Gregor, 14 Feb 2024, (E-pub ahead of print) In: Dermatology (Basel, Switzerland).

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    An Explorative Study on Calcium Electroporation for Low-risk Basal Cell Carcinoma

    Wiegell, Stine Regin, Hendel, K., Fuchs, C. S. K., Gehl, Julie, Vissing, M., Bro, S. W., Troelsen, J. T., Jemec, Gregor & Hædersdal, Merete, 2024, In: Acta Dermato-Venereologica. 104, 7 p., adv19678.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Behandlung der Acne fulminans mit Tumornekrosefaktor-α-Inhibitoren – eine Übersicht klinischer Fälle und der Literatur

    Taudorf, E. H., Jensen, M. B., Bouazzi, D., Sand, C., Thomsen, Simon Francis, Jemec, Gregor & Saunte, Ditte Marie, 2024, In: JDDG - Journal of the German Society of Dermatology. 22, 1, p. 23-28 6 p.

    Research output: Contribution to journalReviewResearchpeer-review

  5. Published

    Diagnostic accuracy of a short-form version of the diagnostic criteria for primary hyperhidrosis

    Henning, M. A. S., Al-Rahimi, H. I., Jemec, Gregor & Pedersen, Ole Birger Vesterager, 2024, In: Acta Dermatovenerologica Alpina, Pannonica et Adriatica. 33, 1, p. 17-22 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Did We Forget about Social Determinants of Health in Dermatology?

    Christensen, E. M. M. & Jemec, Gregor, 2024, In: Acta Dermato-Venereologica. 104, 2 p., adv34034.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Global differences in tobacco use: who is using what?

    Medianfar, C. E. & Jemec, Gregor, 2024, In: British Journal of Dermatology. 190, 1, p. 117-118 2 p.

    Research output: Contribution to journalComment/debateResearchpeer-review

  8. Published

    Increased cancer incidence among patients with hidradenitis suppurativa - a Danish nationwide register study 1977-2017

    Andersen, R., Rostgaard, K., Pedersen, O., Jemec, Gregor & Hjalgrim, Henrik, 2024, In: Acta oncologica (Stockholm, Sweden). 63, p. 220-228 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Accepted/In press

    Increased risk of nonmelanoma skin cancer in patients with alpha-1 antitrypsin deficiency: A nationwide cohort study

    Korsbæk, N. J., Landt, E. M., Marott, S., Nordestgaard, Børge, Vinding, Gabrielle Randskov, Jemec, Gregor & Dahl, Morten, 2024, (Accepted/In press) In: Journal of the European Academy of Dermatology and Venereology.

    Research output: Contribution to journalLetterResearchpeer-review

  10. Published
  11. Published

    Orismilast for the treatment of mild to severe hidradenitis suppurativa: Week 16 data from OSIRIS, a Phase 2a, open-label, single-centre, single-arm, dose-finding clinical trial

    Frederiksen, C. G., Sedeh, F. B., Taudorf, E. H., Saunte, Ditte Marie & Jemec, Gregor, 2024, In: Journal of the European Academy of Dermatology and Venereology. 38, 5, p. 920-930

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Predictive metagenomic analysis identifies specific bacterial metabolic pathways in hidradenitis suppurativa tunnels

    Ring, H. C., Thorsen, J., Lilje, B., Bay, Lene, Bjarnsholt, Thomas, Fuursted, K., Saunte, Ditte Marie, Jemec, Gregor & Thomsen, Simon Francis, 2024, In: Journal of the European Academy of Dermatology and Venereology. 38, 1, p. e63-e65

    Research output: Contribution to journalComment/debateResearchpeer-review

  13. Published

    Professional Cleaners’ and Healthcare Workers’ Ability to Recognize Hand Eczema

    Glenn Ullum, A., Barati Sedeh, F., Jemec, Gregor & Ibler, Kristina Sophie, 2024, In: Acta Dermato-Venereologica. 104, 6 p., adv27985.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Accepted/In press

    Rosacea Core Domain Set for Clinical Trials and Practice A Consensus Statement

    Dirr, M. A., Ahmed, A., Schlessinger, D. I., Haq, M., Shi, V., Koza, E., Ma, M., Christensen, R. E., Ibrahim, S. A., Schmitt, J., Johannsen, L., Asai, Y., Baldwin, H. E., Berardesca, E., Berman, B., Vieira, A. C., Chien, A. L., Cohen, D. E., Del Rosso, J. Q., Dosal, J. & 31 others, Drake, L. A., Feldman, S. R., Fleischer, A. B., Friedman, A., Graber, E., Harper, J. C., Helfrich, Y. R., Jemec, Gregor, Johnson, S. M., Katta, R., Lio, P., Maier, L. E., Martin, G., Nagler, A. R., Neuhaus, I. M., Palamar, M., Parish, L. C., Rosen, T., Shumack, S. P., Solomon, J. A., Tanghetti, E. A., Webster, G. F., Weinkle, A., Weiss, J. S., Wladis, E. J., Maher, I. A., Sobanko, J. F., Cartee, T. V., Cahn, B. A., Egeberg, Alexander & IMPROVED-COS Rosacea Working Group, I. R. W. G., 2024, (Accepted/In press) In: JAMA Dermatology.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Severity rating of specific skin lesions in hidradenitis suppurativa: the patient perspective

    Thorlacius, L., Riis, P. T., Musaeus, K. D., Saunte, Ditte Marie, Esmann, S., Jemec, Gregor & Hansen, S. T., 2024, In: British Journal of Dermatology. 190, 4, p. 579-581

    Research output: Contribution to journalComment/debateResearchpeer-review

  16. Published

    The Role of Intra-Follicular Shear Forces in Hidradenitis Suppurativa

    Stancic, B. H., Boer, J., Dolenc-Voljč, M. & Jemec, Gregor, 2024, In: Skin Pharmacology and Physiology. 36, 6, p. 302-303 2 p.

    Research output: Contribution to journalComment/debateResearchpeer-review

  17. E-pub ahead of print

    The effect of age on self-rated skin pain in patients with hidradenitis suppurativa

    Andersen, Rune Kjærsgaard, Saunte, Ditte Marie & Jemec, Gregor, 2024, (E-pub ahead of print) In: European journal of dermatology : EJD.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Tumor necrosis factor-α inhibitor treatment of acne fulminans – a clinical and literature review

    Taudorf, E. H., Jensen, M. B., Bouazzi, D., Sand, C., Thomsen, Simon Francis, Jemec, Gregor & Saunte, Ditte Marie, 2024, In: JDDG - Journal of the German Society of Dermatology. 22, 1, p. 23-27 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. E-pub ahead of print

    Viewpoint on the Evaluation of Severity and Treatment Effects in Mild Hidradenitis Suppurativa: The Cumulative IHS4

    Van Der Zee, H. H., Van Huijstee, J. C., Van Straalen, K. R., Jemec, Gregor, Zouboulis, C. C., Tzellos, T. & Prens, E. P., 2024, (E-pub ahead of print) In: Dermatology. 3 p.

    Research output: Contribution to journalComment/debateResearch

  20. 2023
  21. Published

    Nationwide epidemiology and treatment pattern of superficial fungal infections in the Faroe Islands: a retrospective study from 2003 to 2019

    Bouazzi, D., Andersen, P. L., Jacobsen, E. W., Arendrup, Maiken Cavling, Jemec, Gregor & Saunte, Ditte Marie, Nov 2023, In: APMIS. 131, 11, p. 564-566 3 p.

    Research output: Contribution to journalEditorialResearchpeer-review

  22. Published

    A nationwide 104 weeks real‐world study of dupilumab in adults with atopic dermatitis: Ineffectiveness in head‐and‐neck dermatitis

    Vittrup, I., Krogh, N. S., frw424, frw424, Elberling, Jesper Vraamark, Skov, Lone, Ibler, Kristina Sophie, Jemec, Gregor, Mortz, C. G., Bach, R. O., Bindslev‐jensen, C., Dalager, M. G., Egeberg, Alexander, Agner, Tove, Deleuran, M., Vestergaard, C. & Thyssen, Jacob Pontoppidan, 2023, In: Journal of the European Academy of Dermatology and Venereology. 37, 5, p. 1046-1055

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published
  24. Published

    Comparative Efficacy and Safety of Janus Kinase Inhibitors Used in Alopecia Areata: A Systematic Review and Meta-analysis

    Sedeh, F. B., Michaelsdóttir, Thórunn Elisabet, Henning, M. A. S., Jemec, Gregor & Ibler, Kristina Sophie, 2023, In: Acta Dermato-Venereologica. 103, 7 p., adv00855.

    Research output: Contribution to journalReviewResearchpeer-review

  25. Published

    Cytochrome P450 Genes Mediated by DNA Methylation Are Involved in the Resistance to Hidradenitis Suppurativa

    Radhakrishna, U., Ratnamala, U., Jhala, D. D., Vadsaria, N., Patel, M., Uppala, L. V., Vedangi, A., Saiyed, N., Rawal, R. M., Damiani, G. & Jemec, Gregor, 2023, In: Journal of Investigative Dermatology. 143, 4, p. 670-673.e19

    Research output: Contribution to journalComment/debateResearchpeer-review

  26. Published
  27. Published

    Development and validation of IHS4-55, an IHS4 dichotomous outcome to assess treatment effect for hidradenitis suppurativa

    Tzellos, T., van Straalen, K. R., Kyrgidis, A., Alavi, A., Goldfarb, N., Gulliver, W., Jemec, Gregor, Lowes, M. A., Marzano, A. V., Prens, E. P., Sayed, C. J., van der Zee, H. H. & Zouboulis, C. C., 2023, In: Journal of the European Academy of Dermatology and Venereology. 37, 2, p. 395-401 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Dynamic Optical Coherence Tomography of Blood Vessels in Cutaneous Melanoma — Correlation with Histology, Immunohistochemistry and Dermoscopy

    Schuh, S., Sattler, E. C., Rubeck, A., Schiele, S., De Carvalho, N., Themstrup, L., Ulrich, M., Jemec, Gregor, Holmes, J., Pellacani, G. & Welzel, J., 2023, In: Cancers. 15, 17, 13 p., 4222.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    External Validation of the IHS4-55 in a European Antibiotic-Treated Hidradenitis Suppurativa Cohort

    Van Straalen, K. R., Tzellos, T., Alavi, A., Benhadou, F., Cuenca-Barrales, C., Daxhelet, M., Daoud, M., Efthymiou, O., Giamarellos-Bourboulis, E. J., Guillem, P., Gulliver, W., Jemec, G. B. E., Katoulis, A., Koenig, A., Lazaridou, E., Lowes, M. A., Marzano, A. V., Matusiak, L., Molina-Leyva, A., Moltrasio, C. & 14 others, Pinter, A., Potenza, C., Prens, E. P., Romaní, J., Saunte, Ditte Marie, Sayed, C., Skroza, N., Stergianou, D., Szepietowski, J. C., Trigoni, A., Vilarrasa, E., Kyrgidis, A., Zouboulis, C. C. & Van Der Zee, H. H., 2023, In: Dermatology. 239, 3, p. 362-367 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Hidradenitis Suppurativa Prevalence in Nuuk, Greenland: Physician Validation of a Hidradenitis Suppurativa Questionnaire in a Greenlandic Setting

    Botvid, S. H. C., Hove, L. S., Bouazzi, D., Andersen, Rune Kjærsgaard, Thomsen, Simon Francis, Saunte, Ditte Marie & Jemec, Gregor, 2023, In: Acta Dermato-Venereologica. 103, adv00847.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    Hidradenitis suppurativa presents a methylome dysregulation capable to explain the pro-inflammatory microenvironment: Are these DNA methylations potential therapeutic targets?

    Radhakrishna, U., Ratnamala, U., Jhala, D. D., Uppala, L. V., Vedangi, A., Patel, M., Vadsaria, N., Shah, S., Saiyed, N., Rawal, R. M., Mercuri, S. R., Jemec, Gregor & Damiani, G., 2023, In: Journal of the European Academy of Dermatology and Venereology. 37, 10, p. 2109-2123 15 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Human leukocyte antigen system associations in Malassezia-related skin diseases

    Lindsø Andersen, P., Jemec, Gregor, Erikstrup, C., Didriksen, Maria, Dinh, K. M., Mikkelsen, S., Sørensen, E., Nielsen, K. R., Bruun, M. T., Hjalgrim, Henrik, Hansen, Torben, Sækmose, S. G., Ostrowski, Sisse Rye, Saunte, Ditte Marie, Pedersen, Oluf Borbye & DBDS Genetic Consortium, D. G. C., 2023, In: Archives of Dermatological Research. 315, p. 895–902 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Hyperhidrosis is associated with sleep disturbances, daytime tiredness, stress, and depression: A retrospective cohort study from the Danish Blood Donor Study

    Henning, M., Ibler, Kristina Sophie, Loft, I., Jennum, Poul, Didriksen, M., Ullum, H., Erikstrup, C., Nielsen, K., Bruun, M. T., Hjalgrim, Henrik, Sørensen, E., Dinh, K., Thørner, L. W., Jemec, Gregor & Pedersen, Oluf Borbye, 2023, In: Journal of the American Academy of Dermatology. 88, 1, p. 196-197

    Research output: Contribution to journalComment/debateResearch

  34. Published

    Keratitis-ichthyosis-deafness syndrome and hidradenitis suppurativa

    Travis, L., Ou Yang, J., Andersen, Rune Kjærsgaard, Skovby, F., Jemec, Gregor & Saunte, Ditte Marie, 2023, In: JAAD Case Reports. 38, p. 158-162 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. Published

    Laser and intense pulsed light in the treatment of hidradenitis suppurativa

    Saunte, Ditte Marie & Jemec, Gregor, 2023, In: Clinics in Dermatology. 41, 5, p. 628-638 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    Optical coherence tomography for presurgical delineation of basal cell carcinomas on the face—A comparison with histopathology

    Holm, Kirsten, Nielsen, L. J., Lock-Andersen, J., Behrendt, Niels, Svensson, M. S., Themstrup, L. & Jemec, Gregor, 2023, In: Journal of Cutaneous Pathology. 50, 5, p. 441-449 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Overview and comparison of the clinical scores in hidradenitis suppurativa: A real-life clinical data

    Daoud, M., Suppa, M., Benhadou, F., Daxhelet, M., Njimi, H., White, J., Jemec, Gregor & del Marmol, V., 2023, In: Frontiers in Medicine. 10, 14 p., 1145152.

    Research output: Contribution to journalReviewResearchpeer-review

  38. Published

    Patients with tinea pedis and onychomycosis are more likely to use disinfectants when washing textiles than controls

    Wriedt, T. R., Skaastrup, K. N., Andersen, P. L., Simmelsgaard, L., Jemec, Gregor & Saunte, Ditte Marie, 2023, In: APMIS. 131, 11, p. 561-563

    Research output: Contribution to journalComment/debateResearchpeer-review

  39. Published

    Perceived Stigmatization among Dermatological Outpatients Compared with Controls: An Observational Multicentre Study in 17 European Countries

    European Society for Dermatology and Psychiatry (ESDaP) Study collaborators, E. S. F. D. A. P. (. S. C., 2023, In: Acta Dermato-Venereologica. 103, 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    Prevalence and risk factors for hand eczema among professional hospital cleaners in Denmark: A cross-sectional questionnaire-based study

    Sedeh, F. B., Michaelsdóttir, Thórunn Elisabet, Christiensen, K. B., Mortensen, Ole Steen, Jemec, Gregor & Ibler, Kristina Sophie, 2023, In: Contact Dermatitis. 89, 4, p. 241-249 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Prevalence of Hidradenitis Suppurativa in an African Population: Validation of a Screening Questionnaire in Lagos, Nigeria

    Anaba, E. L., Bouazzi, D., Ajayi, P. V., Aro, O. O., Boer, J. & Jemec, Gregor, 2023, In: Dermatology. 239, 5, p. 832-835 4 p.

    Research output: Contribution to journalComment/debateResearchpeer-review

  42. Published

    Prevalence, risk factors, and prevention of occupational contact dermatitis among professional cleaners: a systematic review

    Sedeh, F. B., Michaelsdóttir, Thórunn Elisabet, Jemec, Gregor, Mortensen, Ole Steen & Ibler, Kristina Sophie, 2023, In: International Archives of Occupational and Environmental Health. 96, p. 345–354 10 p.

    Research output: Contribution to journalReviewResearchpeer-review

  43. Published

    Primary skin abscess microbiota a systematic review

    Kursawe Larsen, C., Andersen, Rune Kjærsgaard, Saunte, Ditte Marie & Jemec, Gregor, 2023, In: APMIS : acta pathologica, microbiologica, et immunologica Scandinavica. 131, 5, p. 183-188

    Research output: Contribution to journalReviewResearchpeer-review

  44. Published

    Quality of life in individuals with primary hyperhidrosis: a systematic review and meta-analysis

    Henning, M. A. S., Barati, F. & Jemec, Gregor, 2023, In: Clinical Autonomic Research. 33, 4, p. 519-528 10 p.

    Research output: Contribution to journalReviewResearchpeer-review

  45. Published

    Scoring hidradenitis suppurativa: How to simplify data collection?

    Daoud, M., Benhadou, F., Njimi, H., Jemec, Gregor, Daxhelet, M., White, J., Heudens, S., Karama, J., Suppa, M. & del Marmol, V., 2023, In: Journal of the European Academy of Dermatology and Venereology. 37, 4, p. e562-e564

    Research output: Contribution to journalComment/debateResearchpeer-review

  46. Published

    Short-term real-world experience with baricitinib treatment in Danish adults with moderate-severe atopic dermatitis

    Vittrup, I., Elberling, Jesper Vraamark, Skov, Lone, Ibler, Kristina Sophie, Jemec, Gregor, Mortz, C. G., Bach, R. O., Bindslev-Jensen, C., Dalager, M. G., Egeberg, Alexander, Kamstrup, M., Deleuran, M., Vestergaard, C. & Thyssen, Jacob Pontoppidan, 2023, In: Journal of the European Academy of Dermatology and Venereology : JEADV. 37, 4, p. e543-e546

    Research output: Contribution to journalComment/debateResearchpeer-review

  47. Published

    Sustainable patient education in hidradenitis suppurativa

    Christensen, E. M., Esmann, S., Saunte, Ditte Marie & Jemec, Gregor, 2023, In: JEADV Clinical Practice. 2, 1, p. 107-113 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  48. Published

    Symptoms of attention deficit hyperactivity disorder are associated with Hidradenitis suppurativa in Danish blood donors

    Lindsø Andersen, P., Villumsen, B., Saunte, Ditte Marie, Burgdorf, Kristoffer Sølvsten, Didriksen, Maria, Ostrowski, Sisse Rye, Thørner, L. W., Erikstrup, C., Dinh, K. M., Nielsen, K. R., Brodersen, T., Bruun, M. T., Banasik, Karina, Hansen, Thomas Folkmann, Pedersen, Ole Birger Vesterager & Jemec, Gregor, 2023, In: Archives of Dermatological Research. 315, 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    The differentiating effect of COVID-19-associated stress on the morbidity of blood donors with symptoms of hidradenitis suppurativa, hyperhidrosis, or psoriasis

    Henning, M. A. S., Didriksen, M., Ibler, Kristina Sophie, Ostrowski, Sisse Rye, Erikstrup, C., Nielsen, K., Sækmose, S. G., Hansen, Thomas Folkmann, Ullum, H., Thørner, L. W., Kaspersen, K. A., Mikkelsen, S., Jemec, Gregor & Pedersen, Ole Birger Vesterager, 2023, In: Quality of Life Research. 32, p. 2925–2937 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    Two Novel Human Leukocyte Antigen Alleles Are Associated with Decreased Risk of Onychomycosis in a Large Cohort of Danish Blood Donors

    Lindsø Andersen, P., Jemec, Gregor, Erikstrup, C., Didriksen, Maria, Dinh, K. M., Mikkelsen, S., Bruun, M. T., Hjalgrim, Henrik, Hansen, Thomas Folkmann, Sækmose, S. G., Ostrowski, Sisse Rye, Pedersen, Ole Birger Vesterager & Saunte, Ditte Marie, 2023, In: Skin Appendage Disorders. 9, 3, p. 195-202

    Research output: Contribution to journalJournal articleResearchpeer-review

  51. Published

    Validity and reliability of the Rosacea Area and Severity Index: A novel scoring system for clinical assessment of rosacea severity

    Wienholtz, N. K. F., Thyssen, J. P., Christensen, C. E., Thomsen, S. F., Karmisholt, K. E., Jemec, G. B. E., Lomholt, H. B., Heidenheim, M., Simonsen, A. B., Sand, C., Vestergaard, C., Kaur-Knudsen, D., Ammitzbøll, E., Lørup, E., Danielsen, A. G., Strauss, G., Skov, L., Andersen, P. H., Hald, M., Idorn, L. W. & 3 others, dlt446, dlt446, Zachariae, Claus & Egeberg, Alexander, 2023, In: Journal of the European Academy of Dermatology and Venereology. 37, 3, p. 573-580 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  52. Published

    What do professional cleaners know about the skin care? A questionnaire-based study

    Sedeh, F. B., Michaelsdóttir, Thórunn Elisabet, Jemec, Gregor, Mortensen, Ole Steen & Ibler, Kristina Sophie, 2023, In: Contact Dermatitis. 88, 4, p. 286-293 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

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