Ann‐Kristin Ulfgren

4.3k total citations · 2 hit papers
30 papers, 3.3k citations indexed

About

Ann‐Kristin Ulfgren is a scholar working on Rheumatology, Immunology and Epidemiology. According to data from OpenAlex, Ann‐Kristin Ulfgren has authored 30 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Rheumatology, 14 papers in Immunology and 7 papers in Epidemiology. Recurrent topics in Ann‐Kristin Ulfgren's work include Rheumatoid Arthritis Research and Therapies (10 papers), Inflammatory Myopathies and Dermatomyositis (5 papers) and T-cell and B-cell Immunology (5 papers). Ann‐Kristin Ulfgren is often cited by papers focused on Rheumatoid Arthritis Research and Therapies (10 papers), Inflammatory Myopathies and Dermatomyositis (5 papers) and T-cell and B-cell Immunology (5 papers). Ann‐Kristin Ulfgren collaborates with scholars based in Sweden, Romania and United Kingdom. Ann‐Kristin Ulfgren's co-authors include Jan Andersson, Lars Klareskog, Jesper Swedenborg, Johan Frostegård, Göran K. Hansson, Ulf Hedin, Helena Erlandsson Harris, Ingrid E. Lundberg, Lars Alfredsson and Camilla Bengtsson and has published in prestigious journals such as Arteriosclerosis Thrombosis and Vascular Biology, British Journal of Haematology and Atherosclerosis.

In The Last Decade

Ann‐Kristin Ulfgren

30 papers receiving 3.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

A new model for an etiology of rheumatoid arthritis: Smoking may trigger HLA–DR (shared epitope)–restricted immune reactions to autoantigens modified by citrullination

2005 1.1k citations Lars Klareskog, Patrik Stolt et al. Arthritis & Rheumatism profile →
Cytokine expression in advanced human atherosclerotic plaques: dominance of pro-inflammatory (Th1) and macrophage-stimulating cytokines

1999 804 citations Johan Frostegård, Ann‐Kristin Ulfgren et al. Atherosclerosis profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ann‐Kristin Ulfgren Sweden	21	1.5k	1.4k	764	609	374	30	3.3k
Karl Egerer Germany	26	900 0.6×	650 0.5×	440 0.6×	703 1.2×	418 1.1×	52	2.5k
Shun‐le Chen China	26	1.5k 1.0×	1.4k 1.0×	431 0.6×	910 1.5×	254 0.7×	61	3.7k
Gyula Szegedi Hungary	30	1.4k 0.9×	873 0.6×	492 0.6×	362 0.6×	249 0.7×	96	2.6k
Kunihiro Ichinose Japan	31	1.3k 0.8×	1.2k 0.9×	281 0.4×	773 1.3×	189 0.5×	188	3.1k
Dora Pascual‐Salcedo Spain	33	1.6k 1.1×	1.5k 1.1×	251 0.3×	777 1.3×	540 1.4×	136	3.5k
Pieter C. Limburg Netherlands	38	1.2k 0.8×	1.7k 1.3×	459 0.6×	670 1.1×	267 0.7×	79	3.8k
Barbara Tolusso Italy	30	1.3k 0.8×	961 0.7×	311 0.4×	584 1.0×	246 0.7×	129	2.9k
Emese Kiss Hungary	34	2.0k 1.3×	1.2k 0.9×	379 0.5×	352 0.6×	366 1.0×	130	3.2k
Shin‐ya Kawashiri Japan	27	1.3k 0.9×	745 0.6×	349 0.5×	642 1.1×	135 0.4×	223	3.0k
P. C. Limburg Netherlands	33	1.3k 0.8×	1.3k 0.9×	282 0.4×	543 0.9×	417 1.1×	52	3.6k

Countries citing papers authored by Ann‐Kristin Ulfgren

Since Specialization

Citations

This map shows the geographic impact of Ann‐Kristin Ulfgren'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 Ann‐Kristin Ulfgren with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ann‐Kristin Ulfgren more than expected).

Fields of papers citing papers by Ann‐Kristin Ulfgren

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ann‐Kristin Ulfgren. 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 Ann‐Kristin Ulfgren. The network helps show where Ann‐Kristin Ulfgren may publish in the future.

Co-authorship network of co-authors of Ann‐Kristin Ulfgren

This figure shows the co-authorship network connecting the top 25 collaborators of Ann‐Kristin Ulfgren. A scholar is included among the top collaborators of Ann‐Kristin Ulfgren 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 Ann‐Kristin Ulfgren. Ann‐Kristin Ulfgren is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Klint, Erik af, Anca I. Catrina, Peter Matt, et al.. (2009). Evaluation of arthroscopy and macroscopic scoring. Arthritis Research & Therapy. 11(3). R81–R81. 23 indexed citations

Ulfgren, Ann‐Kristin, et al.. (2009). CD153 in Rheumatoid Arthritis: Detection of a Soluble Form in Serum and Synovial Fluid, and Expression by Mast Cells in the Rheumatic Synovium. The Journal of Rheumatology. 36(3). 501–507. 7 indexed citations

Grundtman, Cecilia, Emma Tham, Ann‐Kristin Ulfgren, & Ingrid E. Lundberg. (2008). Vascular endothelial growth factor is highly expressed in muscle tissue of patients with polymyositis and patients with dermatomyositis. Arthritis & Rheumatism. 58(10). 3224–3238. 50 indexed citations

Sundberg, Erik, Cecilia Grundtman, Erik af Klint, et al.. (2008). Systemic TNF blockade does not modulate synovial expression of the pro-inflammatory mediator HMGB1 in rheumatoid arthritis patients – a prospective clinical study. Arthritis Research & Therapy. 10(2). R33–R33. 31 indexed citations

Hashimoto, Atsushi, Ingo H. Tarner, Rainer M. Bohle, et al.. (2007). Analysis of vascular gene expression in arthritic synovium by laser‐mediated microdissection. Arthritis & Rheumatism. 56(4). 1094–1105. 19 indexed citations

Fasth, Andreas E. R., Omri Snir, Birgitta Nordmark, et al.. (2007). Skewed distribution of proinflammatory CD4+CD28nullT cells in rheumatoid arthritis. Arthritis Research & Therapy. 9(5). R87–R87. 67 indexed citations

Marchini, Giovanna, Kjell Hultenby, Berit Ståbi, et al.. (2007). Increased Expression of HMGB‐1 in the Skin Lesions of Erythema Toxicum. Pediatric Dermatology. 24(5). 474–482. 15 indexed citations

Ulfgren, Ann‐Kristin, Josefine Edner, Berit Ståbi, et al.. (2007). Urticaria Neonatorum: Accumulation of tryptase‐expressing mast cells in the skin lesions of newborns with Erythema Toxicum. Pediatric Allergy and Immunology. 18(8). 652–658. 5 indexed citations

Eloranta, Maija‐Leena, Sevim Barbasso Helmers, Ann‐Kristin Ulfgren, et al.. (2007). A possible mechanism for endogenous activation of the type I interferon system in myositis patients with anti–Jo‐1 or anti–Ro 52/anti–Ro 60 autoantibodies. Arthritis & Rheumatism. 56(9). 3112–3124. 143 indexed citations

10.

Makrygiannakis, Dimitrios, Erik af Klint, Sergiu‐Bogdan Catrina, et al.. (2006). Intraarticular corticosteroids decrease synovial RANKL expression in inflammatory arthritis. Arthritis & Rheumatism. 54(5). 1463–1472. 48 indexed citations

11.

Lindberg, Johan, Erik af Klint, Anca I. Catrina, et al.. (2006). Effect of infliximab on mRNA expression profiles in synovial tissue of rheumatoid arthritis patients. Arthritis Research & Therapy. 8(6). R179–R179. 57 indexed citations

12.

Lindberg, Johan, Erik af Klint, Ann‐Kristin Ulfgren, et al.. (2006). Variability in synovial inflammation in rheumatoid arthritis investigated by microarray technology. Arthritis Research & Therapy. 8(2). R47–R47. 42 indexed citations

13.

Catrina, Anca I., Erik af Klint, Sofia Ernestam, et al.. (2005). Anti–tumor necrosis factor therapy increases synovial osteoprotegerin expression in rheumatoid arthritis. Arthritis & Rheumatism. 54(1). 76–81. 86 indexed citations

14.

Aronsson, Annette, Ann‐Kristin Ulfgren, Berit Ståbi, Anneli Stavreus‐Evers, & Kristina Gemzell‐Danielsson. (2005). The effect of orally and vaginally administered misoprostol on inflammatory mediators and cervical ripening during early pregnancy. Contraception. 72(1). 33–39. 17 indexed citations

15.

Klint, Erik af, Cecilia Grundtman, Marianne Engström, et al.. (2005). Intraarticular glucocorticoid treatment reduces inflammation in synovial cell infiltrations more efficiently than in synovial blood vessels. Arthritis & Rheumatism. 52(12). 3880–3889. 72 indexed citations

16.

Klareskog, Lars, Patrik Stolt, Karin Lundberg, et al.. (2005). A new model for an etiology of rheumatoid arthritis: Smoking may trigger HLA–DR (shared epitope)–restricted immune reactions to autoantigens modified by citrullination. Arthritis & Rheumatism. 54(1). 38–46. 1080 indexed citations breakdown →

17.

Ernestam, Sofia, Erik af Klint, Anca I. Catrina, et al.. (2005). Synovial expression of IL-15 in rheumatoid arthritis is not influenced by blockade of tumour necrosis factor.. Arthritis Research & Therapy. 8(1). R18–R18. 22 indexed citations

18.

Svenungsson, Elisabet, Kerstin Jensen‐Urstad, Christina Trollmo, et al.. (2004). Decreased Binding of Annexin V to Endothelial Cells. Arteriosclerosis Thrombosis and Vascular Biology. 25(1). 198–203. 72 indexed citations

19.

Frostegård, Johan, Ann‐Kristin Ulfgren, Ulf Hedin, et al.. (1999). Cytokine expression in advanced human atherosclerotic plaques: dominance of pro-inflammatory (Th1) and macrophage-stimulating cytokines. Atherosclerosis. 145(1). 33–43. 804 indexed citations breakdown →

20.

Lundberg, Ingrid E., et al.. (1997). Cytokine production in muscle tissue of patients with idiopathic inflammatory myopathies. Arthritis & Rheumatism. 40(5). 865–874. 213 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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