Jan J. Koornstra

University Medical Center Groningen — Netherlands

Medicine · Health Sciences

20h-index2.3kcitations50works6.02yr avg
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Research Topics

Genetic factors in colorectal cancer(17), Colorectal Cancer Screening and Detection(11), Gastric Cancer Management and Outcomes(9), Cell death mechanisms and regulation(8), Helicobacter pylori-related gastroenterology studies(5)

Publications50 total

Endoscopic sphincterotomy to prevent post-ERCP pancreatitis after self-expandable metal stent placement for distal malignant biliary obstruction (SPHINX): a multicentre, randomised controlled trial
Gut·2024· 11 citedOpen Access
Faecal volatile organic compounds to detect colorectal neoplasia in Lynch syndrome – a prospective multicentre study
Endoscopy·2024· 1 cited
Associations of Pathogenic Variants in MLH1, MSH2, and MSH6 With Risk of Colorectal Adenomas and Tumors and With Somatic Mutations in Patients With Lynch Syndrome
Gastroenterology·2020· 101 citedOpen Access
Incidence of small bowel neoplasia in Lynch syndrome assessed by video capsule endoscopy
Endoscopy International Open·2017· 18 citedOpen Access
Equivalent Helicobacter pylori infection rates in Lynch syndrome mutation carriers with and without a first-degree relative with gastric cancer
International Journal of Colorectal Disease·2016· 24 citedOpen Access
Clinical risk factors of colorectal cancer in patients with serrated polyposis syndrome: a multicentre cohort analysis
Gut·2015· 104 citedOpen Access
Impact of non‐anastomotic biliary strictures after liver transplantation on healthcare consumption, use of ionizing radiation and infectious events
Clinical Transplantation·2015· 6 cited
Oncological outcome of malignant colonic obstruction in the Dutch Stent-In 2 trial
British journal of surgery·2014· 234 citedOpen Access
Predictors of colorectal neoplasia after polypectomy: based on initial and consecutive findings.
PubMed·2014· 16 cited
Regulation of TRAIL receptor expression by  -catenin in colorectal tumours
Carcinogenesis·2013· 15 cited
653 Towards Instant Detection of (Pre)Malignant Lesions by Ultrasensitive Near-Infrared Fluorescence Endoscopy, Using Molecular Targeted Fluorescent Antibodies
Gastroenterology·2013· 1 cited
108 Prevalence of Small Bowel Neoplasia in Lynch Syndrome As Assessed by Capsule Endoscopy
Gastroenterology·2013· 2 cited
762 High Adenoma Detection Rate in First Degree Relatives of Patients With Serrated Polyposis Syndrome: A Prospective Study
Gastroenterology·2012· 1 cited
Su1811 The Risk of Non-Colorectal Malignancies in Serrated Polyposis Syndrome Patients and Their First-Degree Relatives
Gastroenterology·2012
Tu1727 Nasoenteral Feeding Tube Placement Using Ultra-Thin Endoscopy in Daily Clinical Practice Is Associated With Low Success Rates
Gastrointestinal Endoscopy·2012
Total Abdominal <sup>18</sup>F-FDG Uptake Reflects Intestinal Adenoma Burden in <i>Apc</i> Mutant Mice
Journal of Nuclear Medicine·2011· 9 citedOpen Access
A bioinformatical and functional approach to identify novel strategies for chemoprevention of colorectal cancer
Oncogene·2011· 27 cited
TNF‐related apoptosis‐inducing ligand cooperates with NSAIDs via activated Wnt signalling in (pre)malignant colon cells
The Journal of Pathology·2010· 12 cited
Increased colorectal cancer risk in first-degree relatives of patients with hyperplastic polyposis syndrome
Gut·2010· 128 citedOpen Access
747 First-Degree Relatives of Hyperplastic Polyposis Patients Have an Increased Colorectal Cancer Risk
Gastroenterology·2010· 2 citedOpen Access
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Frequent Co-authors

Jan H. Kleibeuker(18), Steven de Jong(14), Elisabeth G.E. de Vries(12), Mathilde Jalving(9), Evelien Dekker(9), Monique E. van Leerdam(7), Dianne M. Heijink(7), Harry Hollema(6), Jelle Wesseling(5), Paul Fockens(5), Hans F. A. Vasen(5), Fokko M. Nagengast(4), Nynke Zwart(4), Rinse K. Weersma(4), Jeanin E. van Hooft(3), Roeland A. Veenendaal(3), Karam S. Boparai(3), Annemieke Cats(3), Fleur E.M. Rijcken(3), Johannes B. Reitsma(3)