I. Lygren

5.7k total citations · 2 hit papers
72 papers, 4.2k citations indexed

About

I. Lygren is a scholar working on Epidemiology, Genetics and Surgery. According to data from OpenAlex, I. Lygren has authored 72 papers receiving a total of 4.2k indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Epidemiology, 26 papers in Genetics and 21 papers in Surgery. Recurrent topics in I. Lygren's work include Inflammatory Bowel Disease (25 papers), Microscopic Colitis (23 papers) and Neuropeptides and Animal Physiology (15 papers). I. Lygren is often cited by papers focused on Inflammatory Bowel Disease (25 papers), Microscopic Colitis (23 papers) and Neuropeptides and Animal Physiology (15 papers). I. Lygren collaborates with scholars based in Norway, Sweden and Denmark. I. Lygren's co-authors include Jostein Sauar, Jørgen Jahnsen, Morten H. Vatn, Bjørn Moum, Magne Henriksen, Njaal Stray, E. Aadland, Tom Schulz, Inger Camilla Solberg and Tomm Bernklev and has published in prestigious journals such as Gastroenterology, PLoS ONE and Gut.

In The Last Decade

I. Lygren

71 papers receiving 4.0k 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.

Clinical course during the first 10 years of ulcerative colitis: results from a population-based inception cohort (IBSEN Study)

2008 536 citations Inger Camilla Solberg, I. Lygren et al. Scandinavian Journal of Gastroenterology profile →
Clinical Course in Crohn’s Disease: Results of a Norwegian Population-Based Ten-Year Follow-Up Study

2007 526 citations Inger Camilla Solberg, Morten H. Vatn et al. profile →

Peers

Countries citing papers authored by I. Lygren

Since Specialization

Citations

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

Fields of papers citing papers by I. Lygren

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of I. Lygren

This figure shows the co-authorship network connecting the top 25 collaborators of I. Lygren. A scholar is included among the top collaborators of I. Lygren 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 I. Lygren. I. Lygren 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

#	Work	Indexed citations
1	Effect of the Medicinal Agaricus blazei Murill-Based Mushroom Extract, AndoSanTM, on Symptoms, Fatigue and Quality of Life in Patients with Crohn’s Disease in a Randomized Single-Blinded Placebo Controlled Study 2016 ·PLoS ONE ·(unknown), Geir Hetland, Torstein Lyberg, I. Lygren, Egil Johnson	20
2	Effect of a Medicinal Agaricus blazei Murill-Based Mushroom Extract, AndoSan™, on Symptoms, Fatigue and Quality of Life in Patients with Ulcerative Colitis in a Randomized Single-Blinded Placebo Controlled Study 2016 ·PLoS ONE ·(unknown), Geir Hetland, Torstein Lyberg, I. Lygren, Egil Johnson	37
3	Reduced Platelet Function and Role of Drugs in Acute Gastrointestinal Bleeding 2010 ·Basic & Clinical Pharmacology & Toxicology ·Marianne Kristiansen Kringen, Sigrid Narum, I. Lygren, Ingebjørg Seljeflot, (unknown), Anne‐Marie Siebke Trøseid, Per Wiik Johansen, Odd Brørs, Mette R. Holthe	28
4	Clinical course during the first 10 years of ulcerative colitis: results from a population-based inception cohort (IBSEN Study) breakdown → 2008 ·Scandinavian Journal of Gastroenterology ·Inger Camilla Solberg, I. Lygren, Jørgen Jahnsen, E. Aadland, Ole Høie, Milada Cvancarova, Tomm Bernklev, Magne Henriksen, Jostein Sauar, Morten H. Vatn, Bjørn Moum, (unknown)	536
5	Familial aggregation in Crohn's disease and ulcerative colitis in a Norwegian population-based cohort followed for ten years 2008 ·Journal of Crohn s and Colitis ·May‐Bente Bengtson, Camilla Solberg, Geir Aamodt, Jostein Sauar, Jørgen Jahnsen, Bjørn Moum, I. Lygren, Morten H. Vatn	31
6	Transcatheter arterial embolization in the management of bleeding duodenal ulcers: A 5.5-year retrospective study of treatment and outcome 2008 ·Scandinavian Journal of Gastroenterology ·(unknown), (unknown), Bjørn Atle Bjørnbeth, I. Lygren, (unknown)	65
7	A prospective randomized comparison between two MRI studies of the small bowel in Crohn’s disease, the oral contrast method and MR enteroclysis 2007 ·European Radiology ·Anne Negaard, Vemund Paulsen, Leiv Sandvik, A. Berstad, Arne Borthne, (unknown), I. Lygren, (unknown), Nils‐Einar Kløw	173
8	MRI of the small bowel with oral contrast or nasojejunal intubation in Crohn's disease: Randomized comparison of patient acceptance 2007 ·Scandinavian Journal of Gastroenterology ·Anne Negaard, Leiv Sandvik, A. Berstad, Vemund Paulsen, I. Lygren, Arne Borthne, Nils‐Einar Kløw	67
9	Ulcerative colitis and clinical course: Results of a 5-year population-based follow-up study (the IBSEN study) 2006 ·Inflammatory Bowel Diseases ·Magne Henriksen, Jørgen Jahnsen, I. Lygren, Jostein Sauar, (unknown), Tom Schulz, Morten H. Vatn, (unknown)	202
10	Course of disease, drug treatment and health-related quality of life in patients with inflammatory bowel disease 5 years after initial diagnosis 2005 ·European Journal of Gastroenterology & Hepatology ·Tomm Bernklev, Jørgen Jahnsen, Tom Schulz, Jostein Sauar, I. Lygren, Magne Henriksen, (unknown), (unknown), E. Aadland, Morten Vatn, (unknown)	70
11	Bowel MR imaging with oral Gastrografin: an experimental study with healthy volunteers 2003 ·European Radiology ·Arne Borthne, Johann Baptist Dormagen, (unknown), (unknown), I. Lygren, Jonn Terje Geitung	18
12	Octreotide in patients with active ulcerative colitis treated with high dose corticosteroids (OPUS 1) 2002 ·European Journal of Gastroenterology & Hepatology ·Jeroen D. van Bergeijk, J. H. P. Wilson, Ole Haagen Nielsen, Christian von Tirpitz, (unknown), I. Lygren, (unknown), Helge L. Waldum, Chris J. Mulder, S. Friis, (unknown), (unknown)	14
13	Clinical Course during the 1st Year after Diagnosis in Ulcerative Colitis and Crohn's Disease: Results of a Large, Prospective Population-based Study in Southeastern Norway, 1990-93 1997 ·Scandinavian Journal of Gastroenterology ·Bjørn Moum, Anders Ekbom, Morten H. Vatn, E. Aadland, Jostein Sauar, I. Lygren, Tom Schulz, Njaal Stray, O. Fausa	136
14	Incidence of Inflammatory Bowel Disease in Southeastern Norway: Evaluation of Methods after 1 Year of Registration 1995 ·Digestion ·Bjørn Moum, (unknown), Anders Ekbom, O. Fausa, E. Aadland, I. Lygren, Jostein Sauar, Tom Schulz	78
15	Gastrointestinal Bleeding: Dyspeptic Symptoms and Clinical Course in Relation to Use of Non-steroidal Antiinflammatory Drugs 1991 ·Scandinavian Journal of Rheumatology ·Lars Aabakken, R. Weberg, I. Lygren, (unknown), Njaal Stray, M. Osnes	8
16	Vasoactive Intestinal Peptide in Sepsis and Shock 1988 ·Annals of the New York Academy of Sciences ·Arthur Revhaug, I. Lygren, Trond Jenssen, (unknown), P. G. Burhol	9
17	Increased Plasma Levels of Vasoactive Intestinal Polypeptide in Pigs during Endotoxinaemia 1985 ·European Surgical Research ·Arthur Revhaug, I. Lygren, (unknown), (unknown), P. G. Burhol, Karl Erik Giercksky	17
18	Vasoactive Intestinal Polypeptide and Somatostatin in Leucocytes 1984 ·Scandinavian Journal of Clinical and Laboratory Investigation ·I. Lygren, Arthur Revhaug, P. G. Burhol, Karl Erik Giercksky, Trond Jenssen	49
19	The Effect of Duodenal Infusion of Bile on Plasma VIP, GIP, and Secretin and on Duodenal Bicarbonate Secretion 1980 ·Scandinavian Journal of Gastroenterology ·P. G. Burhol, I. Lygren, Helge L. Waldum, Rolf Jorde	20
20	The effect of intragastric infusion of bile, meat extract, CaCl2, and ethanol on plasma VIP and gastrin and on gastric H+ and pepsin outputs. 1979 ·Munich Personal RePEc Archive (Ludwig Maximilian University of Munich) ·Rolf Jorde, I. Lygren, (unknown), Helge L. Waldum	2

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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