Jean–Paul Achkar

13.2k total citations · 1 hit paper
64 papers, 5.4k citations indexed

About

Jean–Paul Achkar is a scholar working on Genetics, Surgery and Epidemiology. According to data from OpenAlex, Jean–Paul Achkar has authored 64 papers receiving a total of 5.4k indexed citations (citations by other indexed papers that have themselves been cited), including 40 papers in Genetics, 33 papers in Surgery and 28 papers in Epidemiology. Recurrent topics in Jean–Paul Achkar's work include Inflammatory Bowel Disease (40 papers), Microscopic Colitis (20 papers) and Eosinophilic Esophagitis (11 papers). Jean–Paul Achkar is often cited by papers focused on Inflammatory Bowel Disease (40 papers), Microscopic Colitis (20 papers) and Eosinophilic Esophagitis (11 papers). Jean–Paul Achkar collaborates with scholars based in United States, Australia and United Kingdom. Jean–Paul Achkar's co-authors include Stephen B. Hanauer, Richard H. Duerr, Steven R. Brant, Dan L. Nicolae, Theodore M. Bayless, Richard Ramos, Yasunori Ogura, Naohiro Inohara, Thomas Moran and Heidi Britton and has published in prestigious journals such as Nature, Gastroenterology and PLoS ONE.

In The Last Decade

Jean–Paul Achkar

59 papers receiving 5.3k 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 frameshift mutation in NOD2 associated with susceptibility to Crohn's disease

2001 3.7k citations Yasunori Ogura, Denise K. Bonen et al. Nature profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jean–Paul Achkar United States	22	3.0k	2.0k	1.9k	1.4k	1.2k	64	5.4k
Miles Parkes United Kingdom	36	2.8k 0.9×	1.7k 0.8×	1.5k 0.8×	1.1k 0.8×	1.8k 1.4×	128	5.5k
Tim Raine United Kingdom	29	2.8k 0.9×	1.4k 0.7×	2.0k 1.0×	1.0k 0.7×	776 0.6×	97	4.9k
Mourad Sahbatou France	16	2.6k 0.8×	2.0k 1.0×	1.2k 0.7×	995 0.7×	1.7k 1.4×	27	5.2k
Heidi Britton Canada	11	2.1k 0.7×	1.9k 1.0×	1.3k 0.7×	971 0.7×	2.0k 1.6×	15	6.2k
Jean‐Pierre Cézard France	29	3.7k 1.2×	2.6k 1.3×	2.0k 1.1×	1.7k 1.2×	1.6k 1.3×	70	6.8k
Denise K. Bonen United States	12	2.7k 0.9×	2.2k 1.1×	1.4k 0.7×	1.3k 0.9×	1.4k 1.1×	13	5.1k
J. Macry France	8	2.9k 0.9×	2.3k 1.1×	1.4k 0.8×	1.2k 0.9×	1.3k 1.1×	16	5.0k
Richard H. Duerr United States	34	4.4k 1.5×	3.2k 1.6×	2.3k 1.2×	2.0k 1.4×	2.0k 1.6×	81	8.0k
Monica Boirivant Italy	38	2.8k 0.9×	3.3k 1.6×	1.5k 0.8×	1.1k 0.8×	1.8k 1.4×	86	7.0k
Frank Seibold Switzerland	37	2.4k 0.8×	1.2k 0.6×	2.0k 1.0×	1.3k 0.9×	675 0.5×	112	4.5k

Countries citing papers authored by Jean–Paul Achkar

Since Specialization

Citations

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

Fields of papers citing papers by Jean–Paul Achkar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jean–Paul Achkar. 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 Jean–Paul Achkar. The network helps show where Jean–Paul Achkar may publish in the future.

Co-authorship network of co-authors of Jean–Paul Achkar

This figure shows the co-authorship network connecting the top 25 collaborators of Jean–Paul Achkar. A scholar is included among the top collaborators of Jean–Paul Achkar 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 Jean–Paul Achkar. Jean–Paul Achkar 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

Chatterjee, Arjun, et al.. (2025). Mechanisms and Management of Ileus. The American Journal of Gastroenterology. 121(3). 573–577.

Joseph, Abel, Salam Bachour, Ravi S. Shah, et al.. (2024). Postoperative Crohn’s Disease Recurrence Risk and Optimal Biologic Timing After Temporary Diversion Following Ileocolic Resection. Inflammatory Bowel Diseases. 31(3). 686–695.

Kassab, Joseph, et al.. (2023). Accuracy of ChatGPT in Common Gastrointestinal Diseases: Impact for Patients and Providers. Clinical Gastroenterology and Hepatology. 22(6). 1323–1325.e3. 33 indexed citations

Bachour, Salam, Ravi S. Shah, Ruishen Lyu, et al.. (2021). S699 Isolated Anastomotic Lesions Do Not Increase Risk for Severe Endoscopic Disease Progression in Postoperative Crohn’s Disease. The American Journal of Gastroenterology. 116(1). S316–S317. 1 indexed citations

Bachour, Salam, Ravi S. Shah, Florian Rieder, et al.. (2021). S712 Late Postoperative Crohn's Disease Recurrence Is Common and Differs by Baseline Inflammation. The American Journal of Gastroenterology. 116(1). S324–S325. 1 indexed citations

Burke, Carol A., Jean–Paul Achkar, Benjamin Click, et al.. (2021). Malignancy risk in individuals with familial adenomatous polyposis receiving biologics and immunomodulators. Familial Cancer. 21(2). 189–195. 1 indexed citations

Lu, Cathy, Helen Robertson, Hua Shen, et al.. (2020). Systematic review: medical therapy for fibrostenosing Crohn’s disease. Alimentary Pharmacology & Therapeutics. 51(12). 1233–1246. 37 indexed citations

Bera, Kaustav, Rajat Thawani, Jean–Paul Achkar, et al.. (2018). Automated segmentation and radiomic characterization of visceral fat on bowel MRIs for Crohn's disease. 8. 32–32. 1 indexed citations

Horton, Nicholas J., Xianrui Wu, Jessica Philpott, et al.. (2016). Impact of Low Immunoglobulin G Levels on Disease Outcomes in Patients with Inflammatory Bowel Diseases. Digestive Diseases and Sciences. 61(11). 3270–3277. 10 indexed citations

10.

Rieder, Florian, Gisela Paul, Elisabeth Schnoy, et al.. (2014). Hemoglobin and Hematocrit Levels in the Prediction of Complicated Crohn's Disease Behavior – A Cohort Study. PLoS ONE. 9(8). e104706–e104706. 27 indexed citations

11.

Wang, Ming‐Hsi, Claudio Fiocchi, Richard H. Duerr, Stephan Ripke, & Jean–Paul Achkar. (2014). A Model Integrating Genetic and Environmental Factors Interactions Can Predict Crohn’s Disease Risk. The American Journal of Gastroenterology. 109. S503–S503. 3 indexed citations

12.

Atreja, Ashish, Jean–Paul Achkar, Bo Shen, et al.. (2012). Sa1121 Feasibility and Accuracy of Patients Reporting Quality-of-Life and Quality-of-Care Metrics Utilizing a Web-Based Patient-Centric Platform: A Model for Quality Improvement Initiatives. Gastroenterology. 142(5). S–221.

13.

Aggarwal, Ashish, Ashish Atreja, Samir Kapadia, & Jean–Paul Achkar. (2012). Sa1299 Coronary Artery Disease in Inflammatory Bowel Disease: A Look at the Percutaneous Coronary Intervention Outcomes. Gastroenterology. 142(5). S–267. 1 indexed citations

14.

Homer, Craig R., Amy L. Richmond, Nancy A. Rebert, Jean–Paul Achkar, & Christine McDonald. (2010). ATG16L1 and NOD2 Interact in an Autophagy-Dependent Antibacterial Pathway Implicated in Crohn's Disease Pathogenesis. Gastroenterology. 139(5). 1630–1641.e2. 291 indexed citations

15.

Shen, Bo, Bret A. Lashner, Ana E. Bennett, et al.. (2004). Treatment of Rectal Cuff Inflammation (Cuffitis) in Patients with Ulcerative Colitis Following Restorative Proctocolectomy and Ileal Pouch-Anal Anastomosis. The American Journal of Gastroenterology. 99(8). 1527–1531. 105 indexed citations

16.

Achkar, Jean–Paul, Tyler Stevens, Kirk A. Easley, et al.. (2004). Indicators of Clinical Response to Treatment with Six-Mercaptopurine or Azathioprine in Patients with Inflammatory Bowel Disease. Inflammatory Bowel Diseases. 10(4). 339–345. 41 indexed citations

17.

Shen, Bo, John R. Goldblum, Jason Connor, et al.. (2003). PYLORIC GLAND METAPLASIA- A SPECIFIC HISTOPATHOLOGIC MARKER FOR CROHNʼS DISEASE. The American Journal of Gastroenterology. 98. S260–S260. 1 indexed citations

18.

Ogura, Yasunori, Denise K. Bonen, Naohiro Inohara, et al.. (2001). A frameshift mutation in NOD2 associated with susceptibility to Crohn's disease. Nature. 411(6837). 603–606. 3737 indexed citations breakdown →

19.

Achkar, Jean–Paul & Bo Shen. (2001). Medical management of postoperative complications of inflammatory bowel disease: Pouchitis and crohn’s disease recurrence. Current Gastroenterology Reports. 3(6). 484–490. 16 indexed citations

20.

Achkar, Jean–Paul & Stephen B. Hanauer. (2000). Medical Therapy To Reduce Postoperative Crohn's Disease Recurrence. The American Journal of Gastroenterology. 95(5). 1139–1146. 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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