Journal publications

• Beck, Marianne; Bringeland, Erling A.; Qvigstad, Gunnar; Fossmark, Reidar. (2021) Gastric cancers missed at upper endoscopy in central norway 2007 to 2016—a population-based study. Cancers. vol. 13 (22).
• Kylänpää, Leena; Koskensalo, Vilja; Saarela, Arto; Ejstrud, Per; Udd, Marianne; Lindström, Outi; Rainio, Mia; Tenca, Andrea; Halttunen, Jorma; Qvigstad, Gunnar; Arnelo, Urban; Fagerström, Niklas; Hauge, Truls; Aabakken, Lars; Grönroos, Juha. (2021) Transpancreatic biliary sphincterotomy versus double guidewire in difficult biliary cannulation: A randomized controlled trial. Endoscopy.
• Haraldsson, Erik; Kylanpää, Leena; Grönroos, Juha; Saarela, Arto; Toth, Ervin; Qvigstad, Gunnar; Hult, Mari; Lindström, Outi; Laine, Simo; Karjula, Heikki; Hauge, Truls; Sadik, Riadh; Arnelo, Urban. (2019) Macroscopic appearance of the major duodenal papilla influences bile duct cannulation: a prospective multicenter study by the Scandinavian Association for Digestive Endoscopy Study Group for ERCP. Gastrointestinal Endoscopy. vol. 90 (6).
• Mjønes, Patricia; Nordrum, Ivar Skjåk; Qvigstad, Gunnar; Sørdal, Øystein Finset; Rian, Liselotte Linnea Mårtensson; Waldum, Helge. (2017) Expression of erythropoietin and neuroendocrine markers in clear cell renal cell carcinoma. APMIS : Acta pathologica, microbiologica et immunologica Scandinavica. Supplementum. vol. 125 (3).
• Vange, Pål; Bruland, Torunn; Doseth, Berit; Fossmark, Reidar; Sousa, Mirta; Beisvag, Vidar; Sørdal, Øystein Finset; Qvigstad, Gunnar; Waldum, Helge; Sandvik, Arne Kristian; Bakke, Ingunn. (2017) The cytoprotective protein clusterin is overexpressed in hypergastrinemic rodent models of oxyntic preneoplasia and promotes gastric cancer cell survival. PLOS ONE. vol. 12 (9).
• Sagatun, Liv; Fossmark, Reidar; Jianu, Constantin-Sergiu; Qvigstad, Gunnar; Nordrum, Ivar Skjåk; Mjønes, Patricia; Waldum, Helge. (2016) Follow-up of patients with ECL cell-derived tumours. Scandinavian Journal of Gastroenterology. vol. 51 (11).
• Waldum, Helge; Hauso, Øyvind; Brenna, Eiliv; Qvigstad, Gunnar; Fossmark, Reidar. (2016) Does long-term profound inhibition of gastric acid secretion increase the risk of ECL cell-derived tumors in man?. Scandinavian Journal of Gastroenterology. vol. 51 (7).
• Olsen, Paul Anders S.; Fossmark, Reidar; Qvigstad, Gunnar. (2015) Fecal calprotectin in patients with suspected small bowel disease – a selection tool for small bowel capsule endoscopy?. Scandinavian Journal of Gastroenterology. vol. 50 (3).
• Olsen, Paul A S; Fossmark, Reidar; Qvigstad, Gunnar. (2014) Fecal calprotectin in patients with suspected small bowel disease - A selection tool for small bowel capsule endoscopy?. Scandinavian Journal of Gastroenterology. vol. 50 (3).
• Sørdal, Øystein Finset; Qvigstad, Gunnar; Nordrum, Ivar Skjåk; Sandvik, Arne Kristian; Gustafsson, Björn; Waldum, Helge. (2014) The PAS positive material in gastric cancer cells of signet ring type is not mucin. Experimental and molecular pathology (Print). vol. 96 (3).
• Sørdal, Øystein Finset; Waldum, Helge; Nordrum, Ivar Skjåk; Boyce, Malcolm; Bergh, Kåre; Munkvold, Bjørn; Qvigstad, Gunnar. (2013) The Gastrin Receptor Antagonist Netazepide (YF476) Prevents Oxyntic Mucosal Inflammation Induced by Helicobacter Pylori Infection in Mongolian Gerbils. Helicobacter. vol. 18 (6).
• Sørdal, Øystein; Qvigstad, Gunnar; Nordrum, Ivar Skjåk; Gustafsson, Björn; Waldum, Helge. (2013) In situ hybridization in human and rodent tissue by the use of a new and simplified method. Applied immunohistochemistry & molecular morphology (Print). vol. 21 (2).
• Erlandsen, Sten Even; Qvigstad, Gunnar; Fossmark, Reidar; Bakke, Ingunn; Chen, Duan; Sandvik, Arne Kristian. (2012) Regulated endocrine-specific protein 18 (RESP18) is localized to and regulated in A-like cells and G-cells in rat stomach. Regulatory Peptides. vol. 177 (1-3).
• Fossmark, Reidar; Sørdal, O.J.; Jianu, Constantin-Sergiu; Qvigstad, Gunnar; Boyce, M; Waldum, Helge. (2012) YF476, a Gastrin Receptor Antagonist, Causes Regression of Tumors and Normalizes Serum Chromogranin A in Patients with Type 1 Gastric Carcinoids. Neuroendocrinology. vol. 96.
• Fossmark, Reidar; Sørdal, Øystein Finset; Jianu, Constantin-Sergiu; Qvigstad, Gunnar; Nordrum, Ivar Skjåk; Boyce, M; Waldum, Helge. (2012) Treatment of gastric carcinoids type 1 with the gastrin receptor antagonist netazepide (YF476) results in regression of tumours and normalisation of serum chromogranin A. Alimentary Pharmacology and Therapeutics. vol. 36 (11-12).
• Jianu, Constantin-Sergiu; Fossmark, Reidar; Viset, Trond; Qvigstad, Gunnar; Sørdal, Øystein Finset; Mårvik, Ronald; Waldum, Helge. (2012) Gastric carcinoids after long-term use of a proton pump inhibitor. Alimentary Pharmacology and Therapeutics. vol. 36 (7).
• Jianu, Constantin-Sergiu; Lange, Ove Juel; Viset, Trond; Qvigstad, Gunnar; Martinsen, Tom Christian; Fougner, Reidun Lyngvi; Kleveland, Per Martin; Fossmark, Reidar; Hauso, Øyvind; Waldum, Helge. (2012) Gastric neuroendocrine carcinoma after long-term use of proton pump inhibitor. Scandinavian Journal of Gastroenterology. vol. 47 (1).
• Sørdal, Øystein Finset; Waldum, Helge; Nordrum, Ivar Skjåk; Boyce, M; Bergh, Kåre; Qvigstad, Gunnar. (2012) The gastrin receptor antagonist YF476 prevents oxyntic mucosal inflammation due to Helicobacter pylori infection in Mongolian gerbils. Regulatory Peptides. vol. 177.
• Fossmark, Reidar; Qvigstad, Gunnar; Martinsen, Tom Christian; Hauso, Øyvind; Waldum, Helge. (2011) Animal models to study the role of long-term hypergastrinemia in gastric carcinogenesis. Journal of Biomedicine and Biotechnology. vol. 2011 (ID 975479).
• Qvigstad, Gunnar; Viset, Trond; Fougner, Reidun Lyngvi. (2011) Eosinofil gastroenteritt. Tidsskrift for Den norske legeforening.