Helgi Valdimarsson

11.1k total citations
173 papers, 8.2k citations indexed

About

Helgi Valdimarsson is a scholar working on Immunology, Dermatology and Rheumatology. According to data from OpenAlex, Helgi Valdimarsson has authored 173 papers receiving a total of 8.2k indexed citations (citations by other indexed papers that have themselves been cited), including 102 papers in Immunology, 36 papers in Dermatology and 32 papers in Rheumatology. Recurrent topics in Helgi Valdimarsson's work include Psoriasis: Treatment and Pathogenesis (53 papers), Monoclonal and Polyclonal Antibodies Research (31 papers) and Dermatology and Skin Diseases (31 papers). Helgi Valdimarsson is often cited by papers focused on Psoriasis: Treatment and Pathogenesis (53 papers), Monoclonal and Polyclonal Antibodies Research (31 papers) and Dermatology and Skin Diseases (31 papers). Helgi Valdimarsson collaborates with scholars based in Iceland, United Kingdom and United States. Helgi Valdimarsson's co-authors include Jóhann E. Guðjónsson, Andrew Johnston, L. Fry, Hekla Sigmundsdóttir, Barbara S. Baker, A.V. Powles, Ingileif Jónsdóttir, T Jónsson, Lionel Fry and Bárður Sigurgeirsson and has published in prestigious journals such as Nature, The Lancet and The Journal of Experimental Medicine.

In The Last Decade

Helgi Valdimarsson

170 papers receiving 7.7k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Helgi Valdimarsson Iceland 54 5.1k 2.2k 1.6k 1.1k 945 173 8.2k
Seymour Katz United States 51 4.1k 0.8× 1.3k 0.6× 1.1k 0.7× 2.5k 2.2× 540 0.6× 248 11.0k
Paola Parronchi Italy 43 7.6k 1.5× 1.5k 0.7× 1.0k 0.7× 1.4k 1.2× 2.6k 2.7× 162 12.1k
Cynthia Guzzo United States 41 8.8k 1.7× 3.9k 1.8× 2.7k 1.7× 2.2k 1.9× 1.1k 1.2× 84 12.5k
J.‐P. Lacour France 55 2.3k 0.5× 3.1k 1.4× 1.2k 0.7× 1.5k 1.3× 834 0.9× 402 10.2k
Annamari Ranki Finland 47 3.4k 0.7× 3.3k 1.5× 746 0.5× 2.2k 1.9× 345 0.4× 226 8.8k
Tsen‐Fang Tsai Taiwan 43 5.9k 1.2× 3.9k 1.8× 1.6k 1.0× 939 0.8× 1.3k 1.3× 296 8.8k
H. Bachelez France 49 4.2k 0.8× 3.0k 1.4× 1.1k 0.7× 1.4k 1.2× 526 0.6× 171 7.1k
Tetsuo Shiohara Japan 47 2.5k 0.5× 2.5k 1.2× 2.9k 1.8× 960 0.8× 819 0.9× 199 8.3k
Marco Londei United Kingdom 48 4.8k 0.9× 413 0.2× 903 0.6× 1.5k 1.3× 554 0.6× 148 8.9k
Robert Sabat Germany 57 7.5k 1.5× 4.1k 1.9× 858 0.5× 2.2k 1.9× 1.1k 1.2× 171 13.4k

Countries citing papers authored by Helgi Valdimarsson

Since Specialization
Citations

This map shows the geographic impact of Helgi Valdimarsson's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Helgi Valdimarsson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helgi Valdimarsson more than expected).

Fields of papers citing papers by Helgi Valdimarsson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helgi Valdimarsson. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Helgi Valdimarsson. The network helps show where Helgi Valdimarsson may publish in the future.

Co-authorship network of co-authors of Helgi Valdimarsson

This figure shows the co-authorship network connecting the top 25 collaborators of Helgi Valdimarsson. A scholar is included among the top collaborators of Helgi Valdimarsson based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Helgi Valdimarsson. Helgi Valdimarsson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Thorleifsdottir, Ragna H., Jón Ólafsson, Martin I. Sigurðsson, et al.. (2014). Throat Infections are Associated with Exacerbation in a Substantial Proportion of Patients with Chronic Plaque Psoriasis. Acta Dermato Venereologica. 96(6). 0–0. 33 indexed citations
2.
Saevarsdóttir, Saedís, K Steinsson, Björn R. Lúdvíksson, Gerður Gröndal, & Helgi Valdimarsson. (2007). Mannan-binding lectin may facilitate the clearance of circulating immune complexes − implications from a study on C2-deficient individuals. Clinical & Experimental Immunology. 148(2). 248–253. 16 indexed citations
3.
Guðjónsson, Jóhann E., Ari Kárason, Valdimar B. Hauksson, et al.. (2006). Distinct Clinical Differences Between HLA-Cw*0602 Positive and Negative Psoriasis Patients – An Analysis of 1019 HLA-C- and HLA-B-Typed Patients. Journal of Investigative Dermatology. 126(4). 740–745. 176 indexed citations
4.
Kárason, Ari, Jóhann E. Guðjónsson, Hjörtur H. Jónsson, et al.. (2005). Genetics of Psoriasis in Iceland: Evidence for Linkage of Subphenotypes to Distinct Loci. Journal of Investigative Dermatology. 124(6). 1177–1185. 31 indexed citations
5.
Jónsson, Steinn, Gestur Vidarsson, Helgi Valdimarsson, et al.. (2002). Vaccination of COPD patients with a pneumococcus type 6B tetanus toxoid conjugate vaccine. European Respiratory Journal. 20(4). 813–818. 18 indexed citations
6.
7.
Sigfússon, Ásbjörn, et al.. (1998). An enzyme based assay for the measurement of complement mediated binding of immune complexes to red blood cells. Journal of Immunological Methods. 211(1-2). 171–181. 4 indexed citations
8.
Jónsson, T, et al.. (1995). Selective increase of IgA rheumatoid factor in patients with gluten sensitivity.. Acta Dermato Venereologica. 75(2). 130–132. 7 indexed citations
9.
Jónsson, T & Helgi Valdimarsson. (1993). Is measurement of rheumatoid factor isotypes clinically useful?. Annals of the Rheumatic Diseases. 52(2). 161–164. 24 indexed citations
10.
Powles, A.V., Terence Cook, B. Hulme, et al.. (1993). Renal function and biopsy findings after 5 years' treatment with low-dose cyclosporin for psoriasis. British Journal of Dermatology. 128(2). 159–165. 47 indexed citations
11.
Graeber, Manuel B., et al.. (1993). The role of cytokines in the generation of skin lesions in dermatitis herpetiformis. British Journal of Dermatology. 129(5). 530–532. 36 indexed citations
12.
Gudjónsson, H, et al.. (1992). Do adults with high gliadin antibody concentrations have subclinical gluten intolerance?. Gut. 33(2). 194–197. 13 indexed citations
13.
Powles, A.V., et al.. (1990). Epidermal rupture is the initiating factor for the Koebner response in psoriasis.. Acta Dermato Venereologica. 70(1). 35–38. 35 indexed citations
14.
Powles, A.V., Barbara S. Baker, Helgi Valdimarsson, B. Hulme, & L. Fry. (1990). Four years of experience with cyclosporin A for psoriasis. British Journal of Dermatology. 122(s36). 13–19. 36 indexed citations
15.
Powles, A.V., Barbara S. Baker, Helgi Valdimarsson, & L. Fry. (1990). Four years'experience of cyclosporin for psoriasis. British Journal of Dermatology. 123(s37). 43–44. 1 indexed citations
16.
Baker, Barbara S., C.E.M. Griffiths, Stacie Lambert, et al.. (1987). The effects of cyclosporin A on T lymphocyte and dendritic cell sub-populations in psoriasis. British Journal of Dermatology. 116(4). 503–510. 130 indexed citations
17.
Valdimarsson, Helgi, et al.. (1982). T-dependent antigens are more immunogenic in the subarachnoid space than in other sites. Journal of Neuroimmunology. 2(3-4). 215–222. 25 indexed citations
18.
Humphrey, John, L Brent, Pamela Ewan, et al.. (1980). The consequences of nuclear war. BMJ. 281(6253). 1497.6–1497. 1 indexed citations
19.
Valdimarsson, Helgi, Christine Wood, J R Hobbs, & Robert J. Holt. (1972). Immunological studies in chronic granulomatous candidiasis and the effect of treatment with dialysable transfer factor. Archives of Disease in Childhood. 47(254). 670–670. 1 indexed citations
20.
Kaur, Jasbir, Daniel Catovsky, Helgi Valdimarsson, O Jensson, & A. S. D. Spiers. (1972). Familial Acute Myeloid Leukaemia with Acquired Pelger-Huet Anomaly and Aneuploidy of C Group. BMJ. 4(5836). 327–331. 33 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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