Ian Johnston

960 total citations
17 papers, 540 citations indexed

About

Ian Johnston is a scholar working on Surgery, Oncology and Genetics. According to data from OpenAlex, Ian Johnston has authored 17 papers receiving a total of 540 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Surgery, 5 papers in Oncology and 5 papers in Genetics. Recurrent topics in Ian Johnston's work include Pediatric Hepatobiliary Diseases and Treatments (5 papers), Fibroblast Growth Factor Research (4 papers) and Drug Transport and Resistance Mechanisms (4 papers). Ian Johnston is often cited by papers focused on Pediatric Hepatobiliary Diseases and Treatments (5 papers), Fibroblast Growth Factor Research (4 papers) and Drug Transport and Resistance Mechanisms (4 papers). Ian Johnston collaborates with scholars based in United Kingdom, Canada and Australia. Ian Johnston's co-authors include Julian R.F. Walters, Jonathan Nolan, Sanjeev Pattni, Tracy Dew, Д. А. Шапиро, Mark Pruzanski, Catherine Williamson, Justine Zhang, Peter Dixon and W. G. Brydon and has published in prestigious journals such as Gastroenterology, The American Journal of Gastroenterology and American Journal of Physiology-Gastrointestinal and Liver Physiology.

In The Last Decade

Ian Johnston

17 papers receiving 531 citations

Peers

Ian Johnston

SURGE

GASTR

EPIDE

ONCOL

Shinya Taniguchi Japan

Motasem Alkhayyat United States

Jongbeom Shin South Korea

Dirk Staessen Belgium

S Smale United Kingdom

David Silvers United States

Piera Zaccari Italy

Assaf Stein Israel

Ronald Bremner United Kingdom

Hassan Taheri Iran

Shinya Taniguchi Japan

Ian Johnston

179 ×0.6

SURGE

184 ×1.0

GASTR

41 ×0.2

EPIDE

51 ×0.3

ONCOL

84 ×0.7

Citations per year, relative to Ian Johnston Ian Johnston (= 1×) peers Shinya Taniguchi

Countries citing papers authored by Ian Johnston

Since Specialization

Citations

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

Fields of papers citing papers by Ian Johnston

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ian Johnston

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

All Works

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17 of 17 papers shown

Balesaria, Sara, Sanjeev Pattni, Ian Johnston, et al.. (2022). Common Genetic Variants in the Bile Acid Synthesis Enzyme CYP7A1 Are Associated With Severe Primary Bile Acid Diarrhea. Gastroenterology. 163(2). 517–519.e2. 6 indexed citations

Dickinson, James A., et al.. (2018). Procedural Knowledge and Skills of Residents Entering Canadian Family Medicine Programs in Alberta. Family Medicine. 50(1). 10–21. 7 indexed citations

Appleby, Richard, et al.. (2017). Novel associations of bile acid diarrhoea with fatty liver disease and gallstones: a cohort retrospective analysis. BMJ Open Gastroenterology. 4(1). e000178–e000178. 17 indexed citations

Johnston, Ian, Jonathan Nolan, Sanjeev Pattni, et al.. (2016). Characterizing Factors Associated With Differences in FGF19 Blood Levels and Synthesis in Patients With Primary Bile Acid Diarrhea. The American Journal of Gastroenterology. 111(3). 423–432. 49 indexed citations

Nolan, Jonathan, Ian Johnston, & Julian R.F. Walters. (2015). Physiology of malabsorption. Surgery (Oxford). 33(5). 193–199. 5 indexed citations

Nolan, Jonathan, et al.. (2014). Tu1262 Obeticholic Acid, a Farnesoid X Receptor Agonist, Reduces Bile Acid Synthesis in Patients With Primary Bile Acid Diarrhea. Gastroenterology. 146(5). S–797. 1 indexed citations

Nolan, Jonathan, Ian Johnston, Sanjeev Pattni, et al.. (2014). Diarrhea in Crohn’s Disease: Investigating the Role of the Ileal Hormone Fibroblast Growth Factor 19. Journal of Crohn s and Colitis. 9(2). 125–131. 29 indexed citations

Walters, Julian R.F., et al.. (2014). The response of patients with bile acid diarrhoea to the farnesoid X receptor agonist obeticholic acid. Alimentary Pharmacology & Therapeutics. 41(1). 54–64. 139 indexed citations

Pattni, Sanjeev, W. G. Brydon, Tracy Dew, et al.. (2013). Fibroblast growth factor 19 in patients with bile acid diarrhoea: a prospective comparison of FGF19 serum assay and SeHCAT retention. Alimentary Pharmacology & Therapeutics. 38(8). 967–976. 95 indexed citations

10.

Zhang, Justine, Jonathan Nolan, Ian Johnston, et al.. (2013). Potent stimulation of fibroblast growth factor 19 expression in the human ileum by bile acids. American Journal of Physiology-Gastrointestinal and Liver Physiology. 304(10). G940–G948. 90 indexed citations

11.

Johnston, Ian, Jonathan Nolan, Tracy Dew, Д. А. Шапиро, & Julian R.F. Walters. (2013). 271 A New Therapy for Chronic Diarrhea? A Proof of Concept Study of the FXR Agonist Obeticholic Acid in Patients With Primary Bile Acid Diarrhea. Gastroenterology. 144(5). S–60. 9 indexed citations

12.

Nolan, Jonathan, Ian Johnston, & Julian R.F. Walters. (2012). Altered enterohepatic circulation of bile acids in Crohn’s disease and their clinical significance: a new perspective. Expert Review of Gastroenterology & Hepatology. 7(1). 49–56. 20 indexed citations

13.

Nolan, Jonathan, Ian Johnston, & Julian R.F. Walters. (2012). Physiology of malabsorption. Surgery (Oxford). 30(6). 268–274. 4 indexed citations

14.

Johnston, Ian, Sanjeev Pattni, Jeremy Bingyuan Lin, et al.. (2012). Sa1304 Meal Stimulated FGF19 Response and Genetic Polymorphisms in Primary Bile Acid Diarrhea. Gastroenterology. 142(5). S–268. 3 indexed citations

15.

Johnston, Ian, Jonathan Nolan, Sanjeev Pattni, & Julian R.F. Walters. (2011). New Insights into Bile Acid Malabsorption. Current Gastroenterology Reports. 13(5). 418–425. 33 indexed citations

16.

Stein, Robert, Ian Johnston, & Susan L. Bannister. (2009). Students Completing a Pediatric Clinical Clerkship in a Regional Center Perform as Well as Their Peers Training at a University Teaching Hospital … And They Liked It Better?. Teaching and Learning in Medicine. 21(3). 225–228. 1 indexed citations

17.

Johnston, Ian. (2001). The historical development of the pseudotumor concept. Neurosurgical FOCUS. 11(2). 1–9. 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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