Merja Ashorn

2.7k total citations
56 papers, 2.0k citations indexed

About

Merja Ashorn is a scholar working on Surgery, Gastroenterology and Epidemiology. According to data from OpenAlex, Merja Ashorn has authored 56 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Surgery, 25 papers in Gastroenterology and 21 papers in Epidemiology. Recurrent topics in Merja Ashorn's work include Helicobacter pylori-related gastroenterology studies (25 papers), Microscopic Colitis (20 papers) and Eosinophilic Esophagitis (15 papers). Merja Ashorn is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (25 papers), Microscopic Colitis (20 papers) and Eosinophilic Esophagitis (15 papers). Merja Ashorn collaborates with scholars based in Finland, United States and France. Merja Ashorn's co-authors include Kaija‐Leena Kolho, Tarja Ruuska, Markku Mäki, Sari Iltanen, Anssi Auvinen, Heini Huhtala, Katri Kaukinen, Riitta Karikoski, Aaro Miettinen and Kalle Kurppa and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and PEDIATRICS.

In The Last Decade

Merja Ashorn

55 papers receiving 1.9k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Merja Ashorn Finland 29 1.2k 852 766 622 199 56 2.0k
Marion Rowland Ireland 24 1.5k 1.3× 888 1.0× 317 0.4× 237 0.4× 218 1.1× 50 2.4k
Mary L. Harris United States 17 652 0.6× 232 0.3× 835 1.1× 1.1k 1.7× 433 2.2× 28 2.5k
W M Bisset United Kingdom 20 702 0.6× 233 0.3× 688 0.9× 977 1.6× 284 1.4× 48 1.8k
Dominique C. Belli Switzerland 27 959 0.8× 219 0.3× 471 0.6× 299 0.5× 164 0.8× 97 2.2k
M. Luisa Mearin Netherlands 33 1.8k 1.6× 2.5k 2.9× 1.8k 2.4× 750 1.2× 450 2.3× 91 4.0k
Małgorzata Sładek Poland 17 653 0.6× 150 0.2× 843 1.1× 1.2k 2.0× 301 1.5× 44 1.7k
Alan M. Lake United States 20 669 0.6× 210 0.2× 417 0.5× 436 0.7× 125 0.6× 53 1.7k
Paul Henderson United Kingdom 21 499 0.4× 150 0.2× 660 0.9× 824 1.3× 343 1.7× 88 1.6k
Magne Henriksen Norway 21 939 0.8× 260 0.3× 2.0k 2.6× 2.3k 3.6× 219 1.1× 31 2.8k
Mohsin Rashid Canada 28 1.1k 1.0× 1.3k 1.5× 1.1k 1.5× 453 0.7× 41 0.2× 55 2.4k

Countries citing papers authored by Merja Ashorn

Since Specialization
Citations

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

Fields of papers citing papers by Merja Ashorn

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Merja Ashorn. 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 Merja Ashorn. The network helps show where Merja Ashorn may publish in the future.

Co-authorship network of co-authors of Merja Ashorn

This figure shows the co-authorship network connecting the top 25 collaborators of Merja Ashorn. A scholar is included among the top collaborators of Merja Ashorn 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 Merja Ashorn. Merja Ashorn 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.
Kivelä, Laura, Katri Kaukinen, Marja‐Leena Lähdeaho, et al.. (2015). Presentation of Celiac Disease in Finnish Children Is No Longer Changing: A 50-Year Perspective. The Journal of Pediatrics. 167(5). 1109–1115.e1. 77 indexed citations
2.
Kalliomäki, Marko, et al.. (2014). Increased expression of CXCL16, a bacterial scavenger receptor, in the colon of children with ulcerative colitis. Journal of Crohn s and Colitis. 8(10). 1222–1226. 9 indexed citations
3.
Ashorn, Merja, et al.. (2010). Incidence trends of pediatric inflammatory bowel disease in Finland, 1987–2003, a nationwide study. Inflammatory Bowel Diseases. 17(8). 1778–1783. 97 indexed citations
4.
5.
Pakarinen, Mikko P., Antti Koivusalo, Merja Ashorn, et al.. (2009). Fecal calprotectin mirrors inflammation of the distal ileum and bowel function after restorative proctocolectomy for pediatric-onset ulcerative colitis†. Inflammatory Bowel Diseases. 16(3). 482–486. 33 indexed citations
6.
Aronen, Eeva T., et al.. (2009). Psychosocial symptoms and competence among adolescents with inflammatory bowel disease and their peers. Inflammatory Bowel Diseases. 16(1). 27–35. 27 indexed citations
7.
Koivusalo, Antti, Mikko P. Pakarinen, Merja Ashorn, et al.. (2009). Sexual functions in adulthood after restorative proctocolectomy for paediatric onset ulcerative colitis. Pediatric Surgery International. 25(10). 881–884. 19 indexed citations
8.
Välineva, Tuuli, Katri Kaukinen, Merja Ashorn, et al.. (2008). Serological Responses to Microbial Antigens in Celiac Disease Patients During a Gluten-Free Diet. Journal of Clinical Immunology. 29(2). 190–195. 39 indexed citations
9.
Ashorn, Merja, et al.. (2006). Current Strategies for the Treatment of Hereditary Tyrosinemia Type I. Pediatric Drugs. 8(1). 47–54. 31 indexed citations
10.
Iltanen, Sari, T. Halttunen, Bo Wei, et al.. (2006). Elevated serum anti-I2 and anti-OmpW antibody levels in children with IBD. Inflammatory Bowel Diseases. 12(5). 389–394. 36 indexed citations
11.
Ashorn, Merja, P Verronen, Tarja Ruuska, & Heini Huhtala. (2003). Upper endoscopic findings in children with active juvenile chronic arthritis. Acta Paediatrica. 92(5). 558–561. 2 indexed citations
12.
Ashorn, Merja. (2003). Gastrointestinal diseases in the paediatric age groups in Europe: epidemiology and impact on healthcare. Alimentary Pharmacology & Therapeutics. 18(s3). 80–83. 5 indexed citations
13.
Arvola, Taina, K. Mustalahti, Marja‐Terttu Saha, et al.. (2002). Celiac Disease, Thyrotoxicosis, and Autoimmune Hepatitis in a Child. Journal of Pediatric Gastroenterology and Nutrition. 35(1). 90–92. 1 indexed citations
14.
Ashorn, Merja, Tarja Ruuska, & Anne Mäkipernaa. (2001). Helicobacter pylori and Iron Deficiency Anaemia in Children. Scandinavian Journal of Gastroenterology. 36(7). 701–705. 62 indexed citations
15.
Ashorn, Merja, Franck Cantet, Kathryn Mayo, & Françis Mégraud. (2000). Cytoskeletal Rearrangements Induced by Helicobacter pylori Strains in Epithelial Cell Culture. Digestive Diseases and Sciences. 45(9). 1774–1780. 9 indexed citations
16.
Kainulainen, Heikki, et al.. (1999). Reverse Transcription-Polymerase Chain Reaction in the Diagnosis of Helicobacter pylori Infection in Finnish Children. Journal of Pediatric Gastroenterology and Nutrition. 28(3). 252–256. 11 indexed citations
17.
Mäkipernaa, Anne, et al.. (1997). Castleman's disease of the mesentery in a child: A case of seven years' duration without typical x-ray findings. Medical and Pediatric Oncology. 28(5). 362–365. 3 indexed citations
18.
Ashorn, Merja, Markku Mäki, Matti Uhari, et al.. (1995). Helicobacter pyloriInfection in Finnish Children and Adolescents A Serologic Cross-Sectional and Follow-up Study. Scandinavian Journal of Gastroenterology. 30(9). 876–879. 79 indexed citations
19.
Ashorn, Merja, et al.. (1994). Gastric Mucosal Cell Densities in Helicobacter pylori Positive and Negative Dyspeptic Children and Healthy Controls. Journal of Pediatric Gastroenterology and Nutrition. 18(2). 146–151. 2 indexed citations
20.
Ashorn, Merja, et al.. (1994). Gastric Mucosal Cell Densities in Helicobacter pylori Positive and Negative Dyspeptic Children and Healthy Controls. Journal of Pediatric Gastroenterology and Nutrition. 18(2). 146–151. 32 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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