2023

• Gopalakrishnan, Shreya; Bakke, Ingunn; Hansen, Marianne Dore; Skovdahl, Helene Kolstad; Granlund, Atle van Beelen; Sandvik, Arne Kristian; Bruland, Torunn. (2023) Comprehensive protocols for culturing and molecular biological analysis of IBD patient-derived colon epithelial organoids. Frontiers in Immunology. volum 14.
  Academic article
• Walaas, Gunnar Andreas; Gopalakrishnan, Shreya; Bakke, Ingunn; Skovdahl, Helene Kolstad; Flatberg, Arnar; Østvik, Ann Elisabeth; Sandvik, Arne Kristian; Bruland, Torunn. (2023) Physiological hypoxia improves growth and functional differentiation of human intestinal epithelial organoids. Frontiers in Immunology. volum 14.
  Academic article

2022

• Gopalakrishnan, Shreya; Hansen, Marianne Dore; Skovdahl, Helene Kolstad; Roseth, Ingrid Aass; Granlund, Atle van Beelen; Østvik, Ann Elisabet; Bakke, Ingunn; Sandvik, Arne Kristian; Bruland, Torunn. (2022) Tofacitinib Downregulates TNF and Poly(I:C)-Dependent MHC-II Expression in the Colonic Epithelium. Frontiers in Immunology. volum 13.
  Academic article
• Olaisen, Maya; Richard, Mathias L.; Beisvag, Vidar; Granlund, Atle van Beelen; Røyset, Elin Synnøve; Rué, Olivier; Martinsen, Tom Christian; Sandvik, Arne Kristian; Sokol, Harry; Fossmark, Reidar. (2022) The ileal fungal microbiota is altered in Crohn's disease and is associated with the disease course. Frontiers in medicine. volum 9.
  Academic article
• Røyset, Elin Synnøve; Pettersen, Henrik Sahlin; Xu, Weili; Larbi, Anis; Sandvik, Arne Kristian; Steigen, Sonja Eriksson; Catalan-Serra, Ignacio; Bakke, Ingunn. (2022) Deep learning-based image analysis reveals significant differences in the number and distribution of mucosal CD3 and γδ T cells between Crohn's disease and ulcerative colitis. The journal of pathology. Clinical research. volum 9.
  Academic article
• Sæterstad, Siri; Østvik, Ann Elisabet; Røyset, Elin Synnøve; Bakke, Ingunn; Sandvik, Arne Kristian; Granlund, Atle van Beelen. (2022) Profound gene expression changes in the epithelial monolayer of active ulcerative colitis and Crohn's disease. PLOS ONE. volum 11 (17).
  Academic article

2021

• Bakke, Ingunn; Walaas, Gunnar Andreas; Bruland, Torunn; Røyset, Elin Synnøve; Granlund, Atle van Beelen; Escudero-Hernandez, Celia; Thorsvik, Silje; Münch, Andreas; Sandvik, Arne Kristian; Østvik, Ann Elisabet. (2021) Mucosal and faecal neutrophil gelatinase-associated lipocalin as potential biomarkers for collagenous colitis. Journal of gastroenterology. volum 56.
  Academic article
• Bruland, Torunn; Østvik, Ann Elisabet; Sandvik, Arne Kristian; Hansen, Marianne Dore. (2021) Host-Viral Interactions in the Pathogenesis of Ulcerative Colitis. International Journal of Molecular Sciences. volum 22 (19).
  Academic literature review
• Escudero-Hernandez, Celia; van Beelen Granlund, Atle; Bruland, Torunn; Sandvik, Arne Kristian; Koch, Stefan; Østvik, Ann Elisabet; Münch, Andreas. (2021) Transcriptomic Profiling of Collagenous Colitis Identifies Hallmarks of Nondestructive Inflammatory Bowel Disease. Cellular and Molecular Gastroenterology and Hepatology (CMGH). volum 12 (2).
  Academic article
• Skovdahl, Helene Kolstad; Gopalakrishnan, Shreya; Svendsen, Tarjei Dahl; Granlund, Atle van Beelen; Bakke, Ingunn; Ginbot, Zekarias; Thorsvik, Silje; Flatberg, Arnar; Sporsheim, Bjørnar; Ostrop, Jenny; Mollnes, Tom Eirik; Sandvik, Arne Kristian; Bruland, Torunn. (2021) Patient derived colonoids as drug testing platforms-Critical importance of oxygen concentration. Frontiers in Pharmacology. volum 12:679741.
  Academic article

2020

• Aasarød, Kristin Matre; Waldum, Helge; Stunes, Astrid Kamilla; Sandvik, Arne Kristian; Flatberg, Arnar; Mjønes, Patricia; Syversen, Unni; Bakke, Ingunn; Fossmark, Reidar. (2020) Gastric Corpus Mucosal Hyperplasia and Neuroendocrine Cell Hyperplasia, but not Spasmolytic Polypeptide-Expressing Metaplasia, Is Prevented by a Gastrin Receptor Antagonist in H+/K+ATPase Beta Subunit Knockout Mice. International Journal of Molecular Sciences. volum 21 (3).
  Academic article
• Bakke, Ingunn; Bruland, Torunn; Eriksen, Kaja Sørgård; Skovdahl, Helene Kolstad; Gopalakrishnan, Shreya; Thorsvik, Silje; Granlund, Atle van Beelen; Sandvik, Arne Kristian; Østvik, Ann Elisabet. (2020) Differences in expression of PPARγ in small intestine vs. colon impact the effect of 5-aminosalicylates in inflammatory bowel disease. Journal of Crohn`s and Colitis. volum 14 (Jan.2020).
  Abstract
• Escudero-Hernandez, Celia; Granlund, Atle van Beelen; Bruland, Torunn; Sandvik, Arne Kristian; Koch, Stefan; Østvik, Ann Elisabet; Münch, Andreas. (2020) Whole-genome RNA sequencing in collagenous colitis: a subgroup analysis. Journal of Crohn`s and Colitis. volum 14 (Jan.2020).
  Abstract
• Jørandli, Jonas Woll; Thorsvik, Silje; Skovdahl, Helene Kolstad; Kornfeld, Benedikt; Sæterstad, Siri; Gustafsson, Björn; Sandvik, Arne Kristian; Granlund, Atle van Beelen. (2020) The serotonin reuptake transporter is reduced in the epithelium of active Crohn's disease and ulcerative colitis. American Journal of Physiology - Gastrointestinal and Liver Physiology. volum 319 (6).
  Academic article
• Olaisen, Maya; Flatberg, Arnar; Granlund, Atle van Beelen; Røyset, Elin Synnøve; Martinsen, Tom Christian; Sandvik, Arne Kristian; Fossmark, Reidar. (2020) Bacterial Mucosa-associated Microbiome in Inflamed and Proximal Noninflamed Ileum of Patients With Crohn's Disease. Inflammatory Bowel Diseases.
  Academic article
• Olaisen, Maya; Flatberg, Arnar; Granlund, Atle van Beelen; Røyset, Elin Synnøve; Martinsen, Tom Christian; Sandvik, Arne Kristian; Fossmark, Reidar. (2020) P833 Bacterial mucosa-associated microbiome in inflamed and proximal non-inflamed ileum of patients with Crohn’s disease. Journal of Crohn's and Colitis. volum 14 (January).
  Abstract
• Sandvik, Arne Kristian; Østvik, Ann Elisabet. (2020) IBD-forskning i Midt-Norge. NGF-nytt. volum 27 (2).
  Popular scientific article
• Sæterstad, Siri; Østvik, Ann Elisabet; Sandvik, Arne Kristian; Granlund, Atle van Beelen. (2020) Gene expression landscape of epithelial monolayer in inflammatory bowel disease. Journal of Crohn`s and Colitis. volum 14 (Jan.2020).
  Abstract
• Walaas, Gunnar Andreas; Bakke, Ingunn; Granlund, Atle van Beelen; Escudero-Hernandez, Celia; Bruland, Torunn; Røyset, Elin Synnøve; Thorsvik, Silje; Münch, Andreas; Østvik, Ann Elisabet; Sandvik, Arne Kristian. (2020) Neutrophil gelatinase-associated lipocalin (NGAL) as biomarker in collagenous colitis. Journal of Crohn`s and Colitis. volum 14 (Jan.2020).
  Abstract
• Østvik, Ann Elisabet; Svendsen, Tarjei Dahl; Granlund, Atle van Beelen; Doseth, Berit; Skovdahl, Helene Kolstad; Bakke, Ingunn; Thorsvik, Silje; Afroz, Wahida; Walaas, Gunnar Andreas; Mollnes, Tom Eirik; Gustafsson, Björn; Sandvik, Arne Kristian; Bruland, Torunn. (2020) Intestinal epithelial cells express immunomodulatory ISG15 during active ulcerative colitis and Crohn's disease. Journal of Crohn's and Colitis. volum 14 (7).
  Academic article

2019

• Olaisen, Maya; Spigset, Olav; Flatberg, Arnar; Granlund, Atle van Beelen; Brede, wenche Rødseth; Albrektsen, Grethe; Røyset, Elin Synnøve; Gilde, Bodil; Sandvik, Arne Kristian; Martinsen, Tom Christian; Fossmark, Reidar. (2019) Mucosal 5-aminosalicylic acid concentration, drug formulation and mucosal microbiome in patients with quiescent ulcerative colitis. Alimentary Pharmacology and Therapeutics. volum 49 (10).
  Academic article
• Thorsvik, Silje; Granlund, Atle van Beelen; Svendsen, Tarjei Dahl; Bakke, Ingunn; Røyset, Elin Synnøve; Flo, Trude Helen; Damås, Jan Kristian; Østvik, Ann Elisabet; Bruland, Torunn; Sandvik, Arne Kristian. (2019) Ulcer-associated cell lineage expresses genes involved in regeneration and is hallmarked by high neutrophil gelatinase-associated lipocalin (NGAL) levels. Journal of Pathology. volum 248.
  Academic article

2018

• Catalan-Serra, Ignacio; Andreu-Ballester, Juan Carlos; Bruland, Torunn; Sandvik, Arne Kristian. (2018) Gammadelta T Cells: Unconventional T Cells Involved in IBD Pathogenesis. Digestive Diseases and Sciences.
  Letter to the editor
• Schmitt, Caroline; Lenglet, Hugo; Yu, Angèle; Delaby, Constance; Benecke, Arndt; Lefebvre, Thibaud; Lettéron, Philippe; Paradis, Valérie; Wahlin, Staffan; Sandberg, Sverre; Harper, Pauline; Sardh, Eliane; Sandvik, Arne Kristian; Hov, Johannes Espolin Roksund; Aarsand, Aasne Karine; Chiche, Laurence; Bazille, Céline; Scoazec, Jean-Yves; To-Figueras, Jordi. (2018) Recurrent attacks of acute hepatic porphyria: major role of the chronic inflammatory response in the liver. Journal of Internal Medicine. volum 284 (1).
  Academic article
• Skovdahl, Helene Kolstad; Damås, Jan Kristian; Granlund, Atle van Beelen; Østvik, Ann Elisabet; Doseth, Berit; Bruland, Torunn; Mollnes, Tom Eirik; Sandvik, Arne Kristian. (2018) C-C Motif Ligand 20 (CCL20) and C-C Motif Chemokine Receptor 6 (CCR6) in Human Peripheral Blood Mononuclear Cells: Dysregulated in Ulcerative Colitis and a Potential Role for CCL20 in IL-1β Release. International Journal of Molecular Sciences. volum 19 (10).
  Academic article
• Thorsvik, Silje; Bakke, Ingunn; Granlund, Atle van Beelen; Røyset, Elin Synnøve; Damås, Jan Kristian; Østvik, Ann Elisabeth; Sandvik, Arne Kristian. (2018) Expression of neutrophil gelatinase-associated lipocalin (NGAL) in the gut in Crohn's disease. Cell and Tissue Research. volum 374 (2).
  Academic article
• Waldum, Helge; Öberg, Kjell; Sørdal, Øystein Finset; Sandvik, Arne Kristian; Gustafsson, Björn; Mjønes, Patricia; Fossmark, Reidar. (2018) Not only stem cells, but also mature cells, particularly neuroendocrine cells, may develop into tumours: time for a paradigm shift. Therapeutic Advances in Gastroenterology. volum 11.
  Academic literature review
• Østvik, Ann Elisabet; Svendsen, Tarjei Dahl; Granlund, Atle van Beelen; Doseth, Berit; Bakke, Ingunn; Thorsvik, Silje; Afroz, Wahida; Skovdahl, Helene Kolstad; Mollnes, Tom Eirik; Gustafsson, Björn; Sandvik, Arne Kristian; Bruland, Torunn. (2018) Tu1753 - type 1 Interferon Signaling in Intestinal Epithelial Cells During Active Inflammatory Bowel Disease. Gastroenterology. volum 154 (6).
  Abstract

2017

• catalan-Serra, Ignacio; Sandvik, Arne Kristian; Bruland, Torunn; Andreu-Ballester, Juan Carlos. (2017) Gammadelta T cells in Crohn's disease: a new player in the disease pathogenesis?. Journal - Crohn's and Colitis Foundation of Canada.
  Academic literature review
• Mjønes, Patricia; Nordrum, Ivar Skjåk; Sørdal, Øystein Finset; Sagatun, Liv; Fossmark, Reidar; Sandvik, Arne Kristian; Waldum, Helge. (2017) Expression of the cholecystokinin-B receptor in neoplastic gastric cells. Discover Oncology. volum 9.
  Academic article
• Thorsvik, Silje; Damås, Jan Kristian; Granlund, Atle van Beelen; Flo, Trude Helen; Bergh, Kåre; Østvik, Ann Elisabet; Sandvik, Arne Kristian. (2017) Fecal neutrophil gelatinase-associated lipocalin as a biomarker for inflammatory bowel disease. Journal of Gastroenterology and Hepatology. volum 32 (1).
  Academic article
• 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. volum 12 (9).
  Academic article

2016

• Aasarød, Kristin Matre; Ramezanzadehkoldeh, Masoud; Shabestari, Maziar; Mosti, Mats Peder; Stunes, Astrid Kamilla; Reseland, Janne Elin; Beisvag, Vidar; Eriksen, Erik Fink; Sandvik, Arne Kristian; Erben, Reinhold; Schüler, Christiane; Boyce, Malcolm; Skallerud, Bjørn Helge; Syversen, Unni; Fossmark, Reidar. (2016) Skeletal effects of a gastrin receptor antagonist in H+/K+ATPase beta subunit KO mice. Journal of Endocrinology. volum 230 (2).
  Academic article
• Bhandari, Sabin; Bakke, Ingunn; Kumar, J. Dinesh; Beisvag, Vidar; Sandvik, Arne Kristian; Thommesen, Liv; Varro, Andrea; Nørsett, Kristin. (2016) Connective tissue growth factor is activated by gastrin and involved in gastrin-induced migration and invasion. Biochemical and Biophysical Research Communications - BBRC. volum 475 (1).
  Academic article
• Brenna, Øystein; Furnes, Marianne Waldum; Munkvold, Bjørn; Kidd, Mark; Sandvik, Arne Kristian; Gustafsson, Björn. (2016) Cellular localization of guanylin and uroguanylin mRNAs in human and rat duodenal and colonic mucosa. Cell and Tissue Research. volum 365 (2).
  Academic article

2015

• Brenna, Øystein; Bruland, Torunn; Furnes, Marianne Waldum; Granlund, Atle Van Beelen; Drozdov, Ignat; Emgård, Johanna; Brønstad, Gunnar; Kidd, Mark; Sandvik, Arne Kristian; Gustafsson, Björn. (2015) The guanylate cyclase-C signaling pathway is down-regulated in inflammatory bowel disease. Scandinavian Journal of Gastroenterology. volum 50 (10).
  Academic article
• Florholmen, Jon; Sandvik, Arne Kristian. (2015) Achievements and challenges in the management of inflammatory bowel disease. Scandinavian Journal of Gastroenterology. volum 50 (1).
  Editorial
• Fossmark, Reidar; Sagatun, Liv; Nordrum, Ivar Skjåk; Sandvik, Arne Kristian; Waldum, Helge. (2015) Hypergastrinemia is associated with adenocarcinomas in the gastric corpus and shorter patient survival. APMIS - Journal of Pathologiy, Microbiology and Immunology. volum 123 (6).
  Academic article
• Hansen, Maren Fridtjofsen; Johansen, Jostein; Bjørnevoll, Inga; Sylvander, Anna Elisabeth; Steinsbekk, Kristin Solum; Sætrom, Pål; Sandvik, Arne Kristian; Drabløs, Finn; Sjursen, Wenche. (2015) A novel POLE mutation associated with cancers of colon, pancreas, ovaries and small intestine. Familial Cancer. volum 14 (3).
  Academic article
• Hansen, Maren Fridtjofsen; Johansen, Jostein; Bjørnevoll, Inga; Sylvander, Anna Elisabeth; Steinsbekk, Kristin Solum; Sætrom, Pål; Sandvik, Arne Kristian; Drabløs, Finn; Sjursen, Wenche. (2015) A novel POLE variant, identified by exome sequencing, causes colorectal- and extra-colonic cancers. Familial Cancer. volum 14 (1).
  Abstract
• Rustad, Even Holth; Dai, Hong Yan; Hov, Håkon; Coward, Eivind; Beisvag, Vidar; Myklebost, Ola; Hovig, Johannes Eivind; Nakken, Sigve; Vodak, Daniel; Meza, Leonardo Zepeda; Sandvik, Arne Kristian; Wader, Karin Fahl; Misund, Kristine; Sundan, Anders; Aarset, Harald; Waage, Anders. (2015) BRAF V600E mutation in early-stage multiple myeloma: good response to broad acting drugs and no relation to prognosis. Blood Cancer Journal. volum 5:e299 (3).
  Academic article
• Skovdahl, Helene Kolstad; Granlund, Atle Van Beelen; Østvik, Ann Elisabet; Bruland, Torunn; Bakke, Ingunn; Torp, Sverre Helge; Damås, Jan Kristian; Sandvik, Arne Kristian. (2015) Expression of CCL20 and its corresponding receptor CCR6 is enhanced in active inflammatory bowel disease, and TLR3 mediates CCL20 expression in colonic epithelial cells. PLOS ONE. volum 10:e0141710 (11).
  Academic article
• Vange, Pål; Bruland, Torunn; Beisvag, Vidar; Erlandsen, Sten Even; Flatberg, Arnar; Doseth, Berit; Sandvik, Arne Kristian; Bakke, Ingunn. (2015) Genome-wide analysis of the oxyntic proliferative isthmus zone reveals ASPM as a possible gastric stem/progenitor cell marker overexpressed in cancer. Journal of Pathology.
  Academic article
• Vatn, Morten H; Sandvik, Arne Kristian. (2015) Inflammatory bowel disease. Scandinavian Journal of Gastroenterology. volum 50 (6).
  Academic article

2014

• Fossmark, Reidar; Sagatun, Liv; Sandvik, Arne Kristian; Waldum, Helge. (2014) Serum gastrin in relation to localization and histological sub-classification of non-cardia adenocarcinomas in the stomach. Gastroenterology.
  Abstract
• 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). volum 96 (3).
  Academic article
• Zhao, Chun-Mei; Hayakawa, Yoku; Kodama, Yosuke; Muthupalani, Sureshkumar; Westphalen,, Christoph B.; Andersen, Gøran Troseth; Flatberg, Arnar; Johannessen, Helene; Friedman, Richard A.; Renz, Bernhard W.; Sandvik, Arne Kristian; Beisvag, Vidar; Tomita, Hiroyuki; Hara, Akira; Quante, Michael; Li, Zhishan; Gershon, Michael D.; Kaneko, Kazuhiro; Fox,, James G.. (2014) Denervation suppresses gastric tumorigenesis. Science Translational Medicine. volum 6 (250).
  Academic article
• Zhao, Chun-Mei; Kodama, Yosuke; Flatberg, Arnar; Beisvag, Vidar; Kulseng, Bård Eirik; Sandvik, Arne Kristian; Rehfeld, Jens F.; Chen, Duan. (2014) Gene expression profiling of gastric mucosa in mice lacking CCK and gastrin receptors. Regulatory Peptides. volum 192-193.
  Academic article
• Østvik, Ann Elisabet; Granlund, Atle Van Beelen; Gustafsson, Björn; Torp, Sverre Helge; Espevik, Terje; Mollnes, Tom Eirik; Damås, Jan Kristian; Sandvik, Arne Kristian. (2014) Mucosal toll-like receptor 3-dependent synthesis of complement factor B and systemic complement activation in inflammatory bowel disease. Inflammatory Bowel Diseases. volum 20 (6).
  Academic article

2013

• Kodama, Yosuke; Zhao, Chun-Mei; Muthupalani, Sureshkumar; Flatberg, Arnar; Friedman, Richard A.; Sandvik, Arne; Beisvag, Vidar; Johannessen, Helene; Hayakawa, Yoku; Tomita, Hiroyuki; Hara, Akira; Westphalen, Christoph B.; Quante, Michael; Kaneko, Kazuhiro; Fox, James G.; Wang, Timothy C.; Chen, Duan. (2013) Denervation Suppresses Gastric Cancer Initiation and Progression Through Inhibition of the Cancer Niche. Gastroenterology. volum 144 (5).
  Abstract
• Brenna, Øystein; Furnes, Marianne Waldum; Drozdov, Ignat; Granlund, Atle Van Beelen; Flatberg, Arnar; Sandvik, Arne Kristian; Zwiggelaar, Rosalie; Mårvik, Ronald; Nordrum, Ivar Skjåk; Kidd, Mark; Gustafsson, Björn. (2013) Relevance of TNBS-Colitis in Rats: A Methodological Study with Endoscopic, Historical and Transcripttomic Characterization and Correlation to IBD. PLOS ONE. volum 8 (1).
  Academic article
• Brenna, Øystein; Furnes, Marianne Waldum; Drozdov, Ignat; Granlund, Atle Van Beelen; Svendsen, Tarjei D.; Jørandli, Jonas W.; Flatberg, Arnar; Zwiggelaar, Rosalie; Nordrum, Ivar Skjåk; Sandvik, Arne; Kidd, Mark; Gustafsson, Björn. (2013) Su1771 Reduced Guanylate Cyclase C Signaling in IBD May Sustain Inflammation, Epithelial Barrier Dysfunction and Increase Cancer Risk in IBD. Gastroenterology. volum 144 (5).
  Abstract
• Granlund, Atle Van Beelen; Flatberg, Arnar; Østvik, Ann Elisabet; Drozdov, Ignat; Gustafsson, Björn; Kidd, Mark; Beisvag, Vidar; Torp, Sverre Helge; Waldum, Helge; Martinsen, Tom Christian; Damås, Jan Kristian; Espevik, Terje; Sandvik, Arne Kristian. (2013) Whole Genome Gene Expression Meta-Analysis of Inflammatory Bowel Disease Colon Mucosa Demonstrates Lack of Major Differences between Crohn's Disease and Ulcerative Colitis. PLOS ONE. volum 8 (2).
  Academic article
• Granlund, Atle Van Beelen; Østvik, Ann Elisabet; Brenna, Øystein; Torp, Sverre Helge; Gustafsson, Björn; Sandvik, Arne Kristian. (2013) REG gene expression in inflamed and healthy colon mucosa explored by in situ hybridisation. Cell and Tissue Research. volum 352 (3).
  Academic article
• Misund, Kristine; Selvik, Linn-Karina M.; Rao, Shalini; Nørsett, Kristin Gabestad; Bakke, Ingunn; Sandvik, Arne; Lægreid, Astrid; Bruland, Torunn; Prestvik, Wenche S; Thommesen, Liv. (2013) NR4A2 is regulated by Gastrin and involved in gastrin-induced migration and invasion of gastric adenocarcinoma cells. PLOS ONE. volum 8 (9).
  Academic article
• Sandvik, Arne; Damås, Jan Kristian. (2013) Hvorfor forske på kroniske tarmbetennelser?.
  Website (informational material)
• Sandvik, Arne; Damås, Jan Kristian. (2013) Why study chronic instestinal inflammation?.
  Website (informational material)
• Østvik, Ann Elisabet; Granlund, Atle Van Beelen; Torp, Sverre Helge; Flatberg, Arnar; Beisvag, Vidar; Waldum, Helge; Flo, Trude Helen; Espevik, Terje; Damås, Jan Kristian; Sandvik, Arne Kristian. (2013) Expression of Toll-like receptor-3 is enhanced in active inflammatory bowel disease and mediates the excessive release of lipocalin 2. Clinical and Experimental Immunology. volum 173 (3).
  Academic article
• Østvik, Ann Elisabet; Granlund, Atle; Bugge, Marit; Nilsen, Nadra; Torp, Sverre Helge; Waldum, Helge; Damås, Jan Kristian; Espevik, Terje; Sandvik, Arne Kristian. (2013) Enhanced expression of CXCL10 in inflammatory bowel disease: Potential role of mucosal toll-like 3 receptor stimulation. Inflammatory Bowel Diseases. volum 19 (2).
  Academic article

2012

• Brenna, Øystein; Furnes, Marianne Waldum; Granlund, Atle; Flatberg, Arnar; Drozdov, Ignat; Sandvik, Arne Kristian; Zwiggelaar, Rosalie; Mårvik, Ronald; Nordrum, Ivar Skjåk; Kidd, Mark; Gustafsson, Björn. (2012) Tu1912 Endoscopic, Histological and Transcriptomic Characterization of TNBS-Colitis in Rats, a Model for IBD. Gastroenterology. volum 142.
  Abstract
• Chin, A; Svejda, B; Gustafsson, Björn; Granlund, Atle Van Beelen; Sandvik, Arne Kristian; Timberlake, Alan; Sumpio, B; Pfragner, R; Modlin, IM; Kidd, M. (2012) The role of mechanical forces and adenosine in the regulation of intestinal enterochromaffin cell serotonin secretion. American Journal of Physiology - Gastrointestinal and Liver Physiology. volum 302 (3).
  Academic article
• 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. volum 177 (1-3).
  Academic article
• Fjeldbo, Christina Sæten; Bakke, Ingunn; Erlandsen, Sten Even; Holmseth, Jannicke; Lægreid, Astrid; Sandvik, Arne Kristian; Thommesen, Liv; Bruland, Torunn. (2012) Gastrin upregulates the pro-survival factor secretory clusterin (sCLU) in adenocarcinoma cells and in oxyntic mucosa of hypergastrinemic rats. American Journal of Physiology - Gastrointestinal and Liver Physiology. volum 302 (1).
  Academic article
• Granlund, Atle; Flatberg, Arnar; Østvik, Ann Elisabet; Drozdov, I; Gustafsson, Björn; Kidd, M; Beisvag, Vidar; Torp, Sverre Helge; Waldum, Helge; Martinsen, Tom Christian; Damås, Jan Kristian; Espevik, Terje; Sandvik, Arne Kristian. (2012) Dissecting the IBD Transcriptome. Inflammatory Bowel Diseases. volum 18.
  Abstract
• Kodama, Yosuke; Flatberg, Arnar; Anderssen, Endre; Sandvik, Arne Kristian; Chen, Duan; Zhao, Chun-Mei. (2012) Food Intake Associated Gene Expression Profiles in the Stomach of Genetically Targeted Mice Deficient in CCK1 Receptor and/or CCK2 Receptor. Gastroenterology. volum 142 (5).
  Abstract
• Kodama, Yosuke; Zhao, Chun-Mei; Quante, Michael; Muthupalani, Sureshkumar; Flatberg, Arnar; Friedman, Richard A.; Sandvik, Arne Kristian; Fox, James G.; Kaneko, Kazuhiro; Wang, Timothy C.; Chen, Duan. (2012) Vagotomy Suppresses Gastric Cancer Progression in Mice. Gastroenterology. volum 142 (5).
  Abstract
• Waldum, Helge; Sandvik, Arne Kristian; Hauso, Øyvind; Qvigstad, Gunnar; Fossmark, Reidar. (2012) Withdrawing PPI Therapy: Response to Metz et al. American Journal of Gastroenterology. volum 107 (2).
  Reader opinion piece
• Østvik, Ann Elisabet; Granlund, Atle Van Beelen; Torp, Sverre Helge; Flatberg, Arnar; Waldum, Helge; Espevik, Terje; Damås, Jan Kristian; Sandvik, Arne Kristian. (2012) Induction of Lipocalin-2 in Colonic Epithelial Cells in Inflammatory Bowel Disease. Inflammatory Bowel Diseases. volum 18.
  Abstract
• Østvik, Ann Elisabet; Nilsen, Nadra; Granlund, Atle; Torp, Sverre Helge; Flatberg, Arnar; Waldum, Helge; Espevik, Terje; Damås, Jan Kristian; Sandvik, Arne Kristian. (2012) Enhanced expression of CXCL10 in inflammatory bowel disease-role of mucosal TLR3 stimulation. Journal of Crohn’s and Coltis Supplements. volum 6.
  Abstract

2011

• Zhao, Chun-Mei; Kodama, Yosuke; Flatberg, Arnar; Sandvik, Arne Kristian; Chen, Duan. (2011) Stomach-Bone Axis: Possible Involvement of Signaling Pathways and Vitamin D Governing Bone Metabolism. Gastroenterology. volum 140 (5).
  Abstract
• Beisvag, Vidar; Kauffmann, Audrey; Malone, James; Foy, Carole; Salit, Marc; Schimmel, H; Bongcam-Rudloff, Eric; Landegren, Ulf; Parkinson, Helen; Huber, Wolfgang; Brazma, Alvis; Sandvik, Arne Kristian; Kuiper, Martin. (2011) Contributions of the EMERALD project to assessing and improving microarray data quality. BioTechniques. volum 50 (1).
  Academic article
• Granlund, Atle Van Beelen; Beisvag, Vidar; Torp, Sverre Helge; Flatberg, Arnar; Kleveland, Per Martin; Østvik, Ann Elisabet; Waldum, Helge; Sandvik, Arne Kristian. (2011) Activation of REG family proteins in colitis. Scandinavian Journal of Gastroenterology. volum 46 (11).
  Academic article
• Kodama, Yosuke; Zhao, Chun-Mei; Quante, Michael; Muthupalani, Sureshkumar; Flatberg, Arnar; Sandvik, Arne Kristian; Fox, James G.; Wang, Timothy C.; Chen, Duan. (2011) Evidence for Mechanism of Vagal Innervation in Gastric Cancer Initiation Involving Signaling Pathways Governing Stem Cells in Mice. Gastroenterology. volum 140 (5).
  Abstract

2010

• Waldum, Helge L.; Hauso, Øyvind; Sandvik, AK. (2010) PPI-induced hypergastrinemia and Barrett's mucosa: the fog thickens. Gut. volum 59.
  Reader opinion piece
• Follestad, Turid; Jørstad, Tommy Stokmo; Erlandsen, Sten Even; Sandvik, Arne Kristian; Bones, Atle M.; Langaas, Mette. (2010) A Bayesian hierarchical model for quantitative real-time PCR data. Statistical Applications in Genetics and Molecular Biology. volum 9 (1).
  Academic article
• Martinsen, Tom Christian; Skogaker, Nan E Tostrup; Fossmark, Reidar; Nordrum, Ivar Skjåk; Sandvik, Arne Kristian; Bendheim, Marianne Østensen; Bakkelund, Karin Elvenes; Waldum, Helge. (2010) Neuroendocrine Cells in Diffuse Gastric Carcinomas: An Ultrastructural Study With Immunogold Labeling of Chromogranin A. Applied immunohistochemistry & molecular morphology (Print). volum 18 (1).
  Academic article
• Waldum, Helge; Qvigstad, Gunnar; Fossmark, Reidar; Kleveland, Per Martin; Sandvik, Arne Kristian. (2010) Rebound acid hypersecretion from a physiological, pathophysiological and clinical viewpoint. Scandinavian Journal of Gastroenterology. volum 45 (4).
  Academic literature review
• Webber, Philip Richard; Aarsand, Aasne Karine; Sandvik, Arne Kristian; Skadberg, Øyvind; Lindberg, Morten; Sandberg, Sverre. (2010) Acute porphyrias may be overlooked in patients taking methenamine hippurate. Clinical Chemistry and Laboratory Medicine. volum 48 (9).
  Reader opinion piece
• Zhao, Chun-Mei; Kodama, Yosuke; Flatberg, Arnar; Anderssen, Endre; Sandvik, Arne Kristian; Chen, Duan. (2010) Gastric ECL cells, rather than gastric acid, play an important role in gut-bone axis. Gastroenterology. volum 136.
  Abstract

2009

• Beisvag, Vidar; Kemi, Ole Johan; Arbo, Ingerid Brænne; Loennechen, Jan Pål; Sandvik, Arne Kristian; Langaas, Mette; Ellingsen, Øyvind; Wisløff, Ulrik. (2009) Pathological and physiological hypertrophies are regulated by distinct gene programs. European Journal of Cardiovascular Prevention & Rehabilitation. volum 16 (6).
  Academic article
• Waldum, Helge; Kleveland, Per Martin; Brenna, Eiliv; Bakke, Ingunn; Qvigstad, Gunnar; Martinsen, Tom Christian; Fossmark, Reidar; Gustafsson, Björn; Sandvik, Arne Kristian. (2009) Interactions between gastric acid secretagogues and the localization of the gastrin receptor. Scandinavian Journal of Gastroenterology. volum 44 (4).
  Academic literature review
• Zhao, Chun-Mei; Kodama, Yosuke; Sandvik, Arne Kristian; Chen, Duan. (2009) Differentiation of Gastric ECL Cells in CCK 1+2 Receptor Double Knockout Mice. Gastroenterology. volum 136 (5).
  Academic article

2008

• Juel, Ingebjørg s.; Solligård, Erik; Tvedt, Kåre E; Skogvoll, Eirik; Jynge, Per; Beisvåg, Vidar; Erlandsen, Sten Even; Sandvik, Arne Kristian; Aadahl, Petter; Grønbech, Jon Erik. (2008) Post-ischaemic restituted intestinal mucosa is more resistant to further ischaemia than normal mucosa in the pig. Scandinavian Journal of Clinical and Laboratory Investigation. volum 68.
  Academic article
• Nørsett, Kristin; Lægreid, Astrid; Kusnierczyk, Waclaw; Langaas, Mette; Ylving, S; Fossmark, Reidar; Myhre, Simen; Falkmer, Sture Emil; Waldum, Helge; Sandvik, Arne Kristian. (2008) Changes in gene expression of gastric mucosa during therapeutic acid inhibition. European Journal of Gastroenterology and Hepathology. volum 20.
  Academic article
• Waldum, Helge; Kleveland, Per Martin; Brenna, Eiliv; Bakke, Ingunn; Qvigstad, Gunnar; Martinsen, Tom Christian; Fossmark, Reidar; Gustafsson, Bjorn; Sandvik, Arne Kristian. (2008) Interactions between gastric acid secretagogues and the localization of the gastrin receptor. Scandinavian Journal of Gastroenterology.
  Academic literature review
• Waldum, Helge; Sandvik, Arne Kristian; Brenna, Eiliv; Fossmark, Reidar; Qvigstad, Gunnar; soga, j. (2008) Classification of tumours. Journal of Experimental and Clinical Cancer Research. volum 27 (1).
  Academic literature review

2007

• Erlandsen, Sten Even; Fykse, Vidar; Waldum, Helge; Sandvik, Arne Kristian. (2007) Octreotide induces apoptosis in the oxyntic mucosa. Molecular and Cellular Endocrinology. volum 264 (1-2).
  Academic article
• Nørsett, Kristin; Syversen, Unni; Waldum, Helge; Sandvik, Arne Kristian. (2007) Kromograninenes rolle i sekresjon fra neuroendokrine celler og som markør for neuroendokrin neoplasi. NBS-nytt.
  Academic article

2006

• Beisvag, Vidar; Lehre, PK; Midelfart, H; Aas, Halfdan; Geiran, Odd; Sandvik, Arne K; Lægreid, A.; Komorowski, J.; Ellingsen, Øyvind. (2006) Aetiology-specific patterns in end-stage heart failure patients identified by functional annotation and classification of microarray data. European Journal of Heart Failure. volum 8 (4).
  Academic article
• Beisvåg, Vidar; Jünge, Frode KR; Bergum, Hallgeir; Jølsum, Lars; Lydersen, Stian; Gunther, Clara-Cecilie; Ramampiaro, Heri; Langaas, Mette; Sandvik, Arne Kristian; Lægreid, Astrid. (2006) GeneTools - application for functional annotation and statistical hypothesis testing. BMC Bioinformatics. volum 7 (470).
  Book review
• Beisvåg, Vidar; Lehre, Per Kristian; Midelfart, Herman; Aass, H; Geiran, O; Sandvik, Arne Kristian; Lægreid, Astrid; Komorowski, Jan; Ellingsen, Øyvind. (2006) Aetiology-specific patterns in end-stage heart failure patients identified by functional annotation and classification of microarray data. European Journal of Heart Failure. volum 8.
  Academic article
• Fykse, Vidar; Solligård, Erik; Bendheim, Marianne Østensen; Chen, Duan; Grønbech, Jon Erik; Sandvik, Arne Kristian; Waldum, Helge. (2006) ECL cell histamine mobilization and parietal cell stimulation in the rat stomach studied by microdialysis and electron microscopy. Acta Physiologica. volum 186.
  Academic article
• Sandvik, Arne Kristian; Alsberg, Bjørn Kåre; Nørsett, Kristin; Yadetie, Fekadu; Waldum, Helge; Lægreid, Astrid. (2006) Gene expression analysis and clinical diagnosis. Clinica Chimica Acta. volum 363.
  Academic literature review
• Waldum, Helge; Kleveland, Per Martin; Sandvik, Arne Kristian; Brenna, Eiliv; Bakke, Ingunn. (2006) Gastrin and cell proliferation. From gastrin to GERD A century of acid supression.
  Academic chapter/article/Conference paper

2005

• Hofsli, Eva; Thommesen, Liv; Yadetie, Fekadu; Langaas, Mette; Sandvik, Arne K.; Lægreid, Astrid. (2005) Identification of novel growth factor-responsive genes in neuroendocrine gastrointestinal tumour cells. British Journal of Cancer. volum 92 (8).
  Academic article
• Martinsen, Tom Christian; Bakke, Ingunn; Chen, Duan; Sandvik, Arne Kristian; Zahlsen, Kolbjørn; Aamo, T.; Waldum, Helge. (2005) Ciprofibrate stimulates the gastrin-producing cell by acting luminally on antral PPAR-alfa. American Journal of Physiology - Gastrointestinal and Liver Physiology. volum 289.
  Academic article
• Fykse, Vidar; Coy, JH; Waldum, Helge; Sandvik, Arne Kristian. (2005) The effect of the somatostatin-receptor 2 (SSTR2) on exocrine and endocrine secretion of the rat stomach. British Journal of Pharmacology. volum 144.
  Academic article
• Fykse, Vidar; Sandvik, Arne Kristian; Waldum, Helge. (2005) A one-year follow-up study of patients with ECL cell carcinoids after treatment with octreotide LAR. Scandinavian Journal of Gastroenterology. volum 40.
  Academic article
• Hofsli, Eva; Thommesen, Liv; Yadetie, Fekadu; Langaas, Mette; Kusnierczyk, Waclaw; Falkmer, Ursula; Sandvik, Arne Kristian; Lægreid, Astrid. (2005) Identification of novel growth factor-responsive genes in neuroendocrine gastrointestinal tumour cells. British Journal of Cancer. volum 92.
  Academic article
• Nørsett, Kristin; Lægreid, Astrid; Langaas, Mette; Wørlund, Sara Maria; Fossmark, Reidar; Waldum, Helge; Sandvik, Arne Kristian. (2005) Molecular characterization of rat gastric mucosal response to potent acid inhibition. Physiological Genomics. volum 22.
  Academic article
• Sandvik, Arne Kristian; Alsberg, Bjørn Kåre; Nørsett, Kristin; Yadetie, Fekadu; Waldum, Helge; Lægreid, Astrid. (2005) Gene expression analysis and clinical diagnosis. Clinica Chimica Acta.
  Academic literature review

2004

• Fossmark, Reidar; Martinsen, Tom Christian; Torp, Sverre Helge; Kawase, S; Sandvik, Arne Kristian; Waldum, Helge. (2004) Spontaneous enterochromaffin-like cell carcinomas in cotton rats (Sigmodon hispidus) are prevented by a somatostatin analogue. Endocrine-Related Cancer. volum 11 (1).
  Academic article
• Fykse, Vidar; Sandvik, Arne Kristian; Qvigstad, Gunnar; Falkmer, Sture Emil; Syversen, Unni; Waldum, Helge. (2004) Treatment of ECL cell carcinoids with octreotide LAR. Scandinavian Journal of Gastroenterology. volum 39 (7).
  Academic article
• Nørsett, Kristin; Lægreid, Astrid; Midelfart, Herman; Erlandsen, Sten Even; Falkmer, Sture Emil; Grønbech, Jon Erik; Waldum, Helge; Komorowski, Jan; Sandvik, Arne Kristian. (2004) Gene expression based classification of gastric carcinoma. Cancer Letters. volum 210.
  Academic article
• Nørsett, Kristin; Lægreid, Astrid; Midelfart, Herman; Yadetie, Fekadu; Erlandsen, Sten Even; Falkmer, Sture Emil; Grønbech, Jon Erik; Waldum, Helge; Komorowski, Jan; Sandvik, Arne Kristian. (2004) Gene expression based classification of gastric carcinoma. Cancer Letters. volum 210 (2).
  Academic article
• Yadetie, Fekadu; Sandvik, Arne Kristian; Bergum, Hallgeir; Nørsett, Kristin; Lægreid, Astrid. (2004) Miniaturized fluorescent RNA dot blot method for rapid quantitation of gene expression. BMC Biotechnology. volum 4.
  Academic article
• Yadetie, Fekadu; Sandvik, Arne Kristian; Bergum, Hallgeir; Nørsett, Kristin; Lægreid, Astrid. (2004) Miniaturized fluorescent RNA dot blot method for rapid quantitation of gene expression. BMC Biotechnology. volum 4.
  Academic article
• Yadetie, Fekadu; Sandvik, Arne Kristian; Bergum, Hallgeir; Nørsett, Kristin; Lægreid, Astrid. (2004) Miniaturized fluorescent RNA dot blot method for rapid quantitation of gene expression. BMC Biotechnology. volum 4.
  Academic article

2003

• Bakke, Ingunn; Yadetie, Fekadu; Sandvik, Arne Kristian; Kusnierczyk, W; Waldum, Helge; Lægreid, Astrid. (2003) DNA microarray analysis of liver gene expression in rats after longterm treatment with ciprofibrate. Physiological Genomics. volum 15.
  Academic article
• Beisvåg, Vidar; Falck, G.; Loenneche, Jan P.; Qvigstad, G; Jynge, Per; Skomedal, T.; Sandvik, Arne Kristian; Ellingsen, Øyvind. (2003) Identification and regulation of the gastric H+/K+ATPase in the rat heart. Acta Physiologica Scandinavica.
  Academic article
• Beisvåg, Vidar; Falck, G; Loennechen, Jan P.; Qvigstad, Gunnar; Jynge, Per; Skomedal, Tor; Osnes, Jan-Bjørn; Sandvik, Arne K; Ellingsen, Øyvind. (2003) Identification and regulation of the gastric H+/K+-ATPase in the rat heart. Acta Physiologica Scandinavica. volum 179.
  Academic article
• Loenneche, Jan P.; Nilsen, Odd Georg; Arbo, Ingerid; Aadahl, Petter; Nilsen, Turid; Waldum, Helge; Sandvik, Arne Kristian; Ellingsen, Øyvind. (2003) Chronic Exposure to Carbon Monoxide and Nicotine: Endothelin ETA Receptor Antagonism Attenuates Carbon Monoxide-Induced Myocardial Hypertrophy in Rat. Toxicology and Applied Pharmacology.
  Academic article
• Lægreid, Astrid; Hvidsten, TR; Midelfart, H; Komorowski, Jan; Sandvik, Arne Kristian. (2003) Predicting Gene Ontology Biological Prosess From Temporal Gene Expression Patterns. Genome Research.
  Academic article
• Martinsen, Tom Christian; Kawase, Shiro; Håkanson, R; Torp, Sverre Helge; Fossmark, Reidar; Qvigstad, G; Sandvik, Arne Kristian; Waldum, Helge. (2003) SpontaneousECL cell carcinomas in cotton rats. Natural course and the effect of a gastrin receptor antagonist. Carcinogenesis. volum 24.
  Academic article
• Martinsen, Tom Christian; Kawase, Shiro; Håkanson, Rolf; Torp, Sverre Helge; Fossmark, Reidar; Qvigstad, G; Sandvik, Arne Kristian; Waldum, Helge. (2003) Spontaneous ECL cell carcinomas in cotton rats: natural course and prevention by a gastrin receptor antagonist. Carcinogenesis. volum 24 (12).
  Academic article
• Nørsett, Kristin; Lægreid, Astrid; Midelfart, H; Yadetie, Fekadu; Erlandsen, S.E.; Falkmer, Sture Emil; Grønbech, Jon Erik; Waldum, Helge; Komorowski, Jan; Sandvik, Arne Kristian. (2003) Gene expression based classification of gastric carcinoma. Cancer Letters.
  Academic article
• Waldum, Helge; Qvigstad, G; Sandvik, Arne Kristian. (2003) Reg protein in gastric cancer tumour cells. FEBS Letters.
  Feature article
• Yadetie, Fekadu; Lægreid, Astrid; Bakke, I; Kusnierczyk, W; Komorowski, Jan; Waldum, Helge; Sandvik, Arne Kristian. (2003) Liver gene expression in rats in response to the peroxisome proliferator-activated receptor alpha agonist ciprofibrate. Physiological Genomics.
  Academic article
• Yadetie, Fekadu; Lægreid, Astrid; Bakke, Ingunn; Kusnierczyk, Waclaw; Komorowski, Jan; Waldum, Helge; Sandvik, Arne Kristian. (2003) Liver gene expression in rats in response to the peroxisome proliferator-activated receptor-{alpha} agonist ciprofibrate. Physiological Genomics. volum 15.
  Academic article
• Yadetie, Fekadu; Lægreid, Astrid; Bakke, Ingunn; Kusnierczyk, Waclaw; Komorowski, Jan; Waldum, Helge; Sandvik, Arne Kristian. (2003) Liver gene expression in rats in response to the peroxisome proliferator-activated receptor-alpha agonist ciprofibrate. Physiological Genomics. volum 15 (1).
  Academic article

2002

• Bakke, Ingunn; Hammer, Tommy Arild; Sandvik, Arne Kristian; Waldum, Helge. (2002) PPAR alpha stimulates the rat gastrin-producing cell. Molecular and Cellular Endocrinology. volum 195.
  Academic article
• Cui, Guanglin; Sandvik, Arne Kristian; Munkvold, Bjørn; Waldum, Helge. (2002) Effects of anaesthetic agents on gastrin-stimulated and histamine-stimulated gastric acid secretion in the totally isolated vascularly perfused rat stomach. Scandinavian Journal of Gastroenterology. volum 37.
  Academic article
• Cui, Guanglin; Sandvik, Arne Kristian; Munkvold, Bjørn; Waldum, Helge. (2002) Glycine-extended gastrin-17 stimulates acid secretion only via CCK-2 receptor-induced histamine release in the totally isolated vascularly perfused rat stomach. Acta Physiologica Scandinavica. volum 174.
  Academic article
• Hofsli, Eva; Nørsett, Kristin; Sandvik, Arne Kristian; Lægreid, Astrid. (2002) Expression of chromogranin A and somatostatin receptors in pancreatic AR42J cells. Molecular and Cellular Endocrinology. volum 194.
  Academic article
• Midelfart, Herman; Komorowski, Jan; Nørsett, Kristin; Yadetie, Fekadu; Sandvik, Arne Kristian; Lægreid, Astrid. (2002) Learning Rough Set Classifiers from Gene Expressions and Clinical Data. Fundamenta Informaticae. volum 53 (2).
  Academic article
• Midelfart, Herman; Komorowski, Jan; Nørsett, Kristin; Yadetie, Fekadu; Sandvik, Arne Kristian; Lægreid, Astrid. (2002) Rough set classifiers from gene expressions and clinical data. Fundamenta Informaticae. volum 52.
  Academic article
• Qvigstad, G; Qvigstad, Tor; Westre, Bjørn; Sandvik, Arne Kristian; Brenna, Eiliv; Waldum, Helge. (2002) Neuroendocrine differentiation in gastric adenocarcinomas associated with severe hypergastrinemia and/or pernicious anemia. APMIS - Journal of Pathologiy, Microbiology and Immunology. volum 110.
  Academic article
• Tømmerås, Karin; Bakke, Ingunn; Sandvik, Arne Kristian; Larsson, Erik; Waldum, Helge. (2002) Rat parietal cell express CCK-2 receptor mRNA: gene expression analysis of single cells isolated by laser-assisted microdissection. Biochemical and Biophysical Research Communications - BBRC. volum 297.
  Academic article
• Waldum, Helge; Brenna, Eiliv; Sandvik, Arne Kristian. (2002) Long-term safety of proton pump inhibitors: risks of gastric neoplasia and infections. Expert Opinion on Drug Safety. volum 1.
  Academic article
• Waldum, Helge; Kleveland, Per Martin; Sandvik, Arne Kristian; Brenna, Eiliv; Syversen, Unni; Bakke, Ingunn; Tømmerås, Karin. (2002) The cellular localization of the cholecystokinin 2 (gastrin) receptor in the stomach. Pharmacology and Toxicology. volum 91.
  Academic article
• Waldum, Helge; Sandvik, Arne Kristian. (2002) GRP and stimulation of acid secretion. Gut. volum 51.
  Feature article

2001

• Bakke, Ingunn; Qvigstad, G; Sandvik, Arne Kristian; Waldum, Helge. (2001) The CCK-2 receptor is located on the ECL cell, but not on the parietal cell. Scandinavian Journal of Gastroenterology. volum 36.
  Academic article
• Dornonville delaCour, D; Björkqvist, Maria; Sandvik, Arne Kristian; Håkanson, Rolf; Chen, D. (2001) A-like cells in the rat stomach contain ghrelin and do not operate under gastrin control. Regulatory Peptides. volum 99.
  Academic article
• Hvidsten, TR; Komorowski, Jan; Sandvik, Arne Kristian; Lægreid, Astrid. (2001) Predicting gene function for gene expressions and ontologies. Proceedings Pacific Symposium on Biocomputing.
  Academic article
• Komorowski, J.; Hvidstaen, T.R.; Jenssen, Tor-Kristian; Tjedvoll, D.; Hovig, Eivind; Lægreid, A.; Sandvik, Arne K.. (2001) Mot kunnskapsoppdagelse fra DNA mikromatise uttrykksdata. Tidsskrift for Den norske legeforening. volum 121.
  Academic article
• Komorowski, Jan; Hvidsten, TR; Jenssen, T-K; Hovig, E; Lægreid, Astrid; Sandvik, Arne Kristian. (2001) Mot kunnskapsoppdagelse fra DNA mikromatrise (microarray) genuttrykksdata. Tidsskrift for Den norske legeforening. volum 121.
  Academic article
• Rydning, Astrid; Lyng, Oddveig; Adamsen, BL; Falkmer, Sture Emil; Sandvik, Arne Kristian. (2001) Mast cells are involved in the gastric hyperemic response to acid back-diffusion via relase of histamine in the rat. American Journal of Physiology. volum 280.
  Academic article
• Rydning, Astrid; Lyng, Oddveig; Adamsen, BL; Falkmer, Sture Emil; Sandvik, Arne Kristian. (2001) Mast cells are involved in the gastric hyperemic response to acid back-diffusion via release of histamine. American Journal of Physiology - Gastrointestinal and Liver Physiology. volum 280.
  Academic article
• Sandvik, Arne K.; Støren, O.; Nørsett, K.; Børresen-Dale, Anne-Lise; Lægreid, A.; Myklebost, Ola. (2001) Måling av genaktivitet med DNA mikromatriser (mikroarray). Molekylære og teknologiske prinsipper. Tidsskrift for Den norske legeforening. volum 121 (10).
  Academic article
• Sandvik, Arne K.; Støren, Ole; Nørsett, Kristin; Børresen-Dale, Anne-Lise; Lægreid, Astrid; Myklebost, Ola. (2001) Måling av genaktivitet med DNA mikromatriser (mikroarray). Molekylære og teknologiske prinsipper. Tidsskrift for Den norske legeforening. volum 121 (10).
  Academic article
• Sandvik, Arne Kristian; Cui, Guanglin; Bakke, Ingunn; Munkvold, Bjørn; Waldum, Helge. (2001) PACAP stimulates gastric acid secretion in the rat by histamine release and a direct effect on the parietal cell. Gastroenterology. volum 120.
  Academic article
• Sandvik, Arne Kristian; Cui, Guanglin; Bakke, Ingunn; Munkvold, Bjørn; Waldum, Helge. (2001) PACAP stimulates gastric acid secretion in the rat, but also in man. Gastroenterology. volum 120.
  Academic article
• Sandvik, Arne Kristian; Cui, Guanglin; Bakke, Ingunn; Waldum, Helge. (2001) PACAP stimulates gastric acid secretion in the rat by inducing histamine release. American Journal of Physiology. volum 281.
  Academic article
• Sandvik, Arne Kristian; Støren, O; Nørsett, Kristin; Børresen-Dale, AL; Lægreid, Astrid; Myklebost, O. (2001) Måling av genaktivitet med DNA mikromatriser (microarray). Molekylære og teknologiske prinsipper. Tidsskrift for Den norske legeforening. volum 121.
  Academic article
• Torp, SH; Qvigstad, G; Brenna, E; Sandvik, Arne Kristian. (2001) Effects of the peroxisomeproliferator ciprofibrate and the somatostatin analogue octreotide alone or in combination on the rat liver. Recent Advances and Research Updates. volum 2.
  Academic article
• Waldum, Helge; Bakke, Ingunn; Torp, Sverre Helge; Qvigstad, G; Brenna, Eiliv; Sandvik, Arne Kristian. (2001) Effects of the peroxisome proliferator ciprofibrate and the somatostatin analogue octreotide alone or in combination on the rat liver. Recent Advances and Research Updates. volum 2 (1).
  Academic article
• Lægreid, A.; Komorowski, J.; Sandvik, Arne K.; Hovig, Eivind; Forus, Anne; Smith-Sørensen, Birgitte; Beisvag, Vidar; Kristiansen, B.; Nørsett, K.; Nygaard, Vegard; Støren, O.; Myklebost, Ola. (2001) DNA mikroarray- vindu mot tusentals gen. NBS-nytt. volum 1.
  Academic article

2000

• Bakke, Ingunn; Qvigstad, G; Brenna, Eiliv; Sandvik, AK; Waldum, Helge. (2000) Gastrin has a specific proliferative effect on the rat enterochromaffin-like cell, but not on the parietal cell: a study by elutriation centrifugation. Acta Physiologica Scandinavica. volum 169.
  Academic article
• Bakke, Ingunn; Sandvik, AK; Waldum, Helge. (2000) Octreotide inhibits the enterochromaffin-like cell, but not peroxisome proliferator-induced hypergastrinemia. Journal of Molecular Endocrinology. volum 25.
  Academic article
• Cui, G; Qvigstad, Gunnar; Falkmer, Sture Emil; Sandvik, Arne Kristian; Kawase, S; Waldum, Helge. (2000) Spontaneous ECLomas in cotton rats (Sigmodon hispidus): Tumours occurring in hypoacidic/hypergastrinaemic animal's with normal parietal cells. Carcinogenesis. volum 21.
  Academic article
• Cui, Guanglin; Falkmer, Sture Emil; Sandvik, AK; Kawase, Shiro; Waldum, Helge. (2000) Spontaneous ECL omas in cotton rats (Sigmodon hispidus): tumours occurring in hypoacidic/hypergastrinemic animals with normal parietal cells. Carcinogenesis. volum 21.
  Academic article
• Guanglin, Cui; Qvigstad, G; Falkmer, Sture Emil; Sandvik, AK; Kawase, Shiro; Waldum, Helge. (2000) Spontaneous ECLomas in cotton rats (Sigmodon hispidus): tumours occurring in hypoacidic/hypergastrinaemic animals with normal parietal cells. Carcinogenesis. volum 21.
  Academic article
• Lægreid, Astrid; Komorowski, Jan; Sandvik, Arne Kristian; Hovig, Eivind; Forus, Anne; Smith-Sørensen, Birgitte; Beisvåg, Vidar; Kristiansen, Bjørn; Nørsett, Kristin; Nygaard, Vigdis; Støren, Ole; Myklebost, Ola. (2000) DNA mikroarray - vindu mot tusentals gen. NBS-nytt. volum 24 (1).
  Academic article
• Qvigstad, G; Qvigstad, Tor; Westre, Bjørn; Sandvik, AK; Brenna, Eiliv; Waldum, Helge. (2000) Neuroendocrine differentiation in gastric adenocarcinomas associated with severe hypergastrinemia. Cancer Detection and Prevention. volum 24(suppl 1).
  Academic article
• Qvigstad, G; Sandvik, AK; Brenna, Eiliv; Falkmer, Sture Emil; Waldum, Helge. (2000) Detection of chromogranin A in human gastric adenocarcinomas using a sensitive immunohistochemical technique. The Histochemical Journal. volum 32.
  Academic article
• Rydning, A; Lyng, Oddveig; Adamsen, BL; Falkmer, S; Sandvik, AK; Grønbech, JE. (2000) Histamine derived from mast cells is involved in the gastric hyperemic response to acid back-diffusion in the rat stomach. European Surgical Research.
  Academic article
• Rydning, A; Lyng, Oddveig; Adamsen, BL; Falkmer, Sture Emil; Sandvik, AK; Grønbech, JE. (2000) Mast cells are involved in the gastric hyperemic response to acid back-diffusion via release of histamine. Gastroenterology.
  Academic article
• Rydning, Astrid; Adamsen, Birgitte Lid; Lyng, Oddveig; Falkmer, Sture Emil; Sandvik, Arne Kristian; Grønbech, Jon Erik. (2000) Histamine derived from mast cells is involved in the gastric hyperemic response to acid back-diffusion in the rat stomach. European Surgical Research. volum 32 (suppl 1).
  Academic article
• Rydning, Astrid; Lid Adamsen, Birgitte; Lyng, Oddveig; Falkmer, Sture Emil; Sandvik, Arne Kristian; Grønbech, Jon Erik. (2000) Mast cells are involved in the gastric hyperemic response to acid back-diffusion via release of histamine. Gastroenterology. volum 118.
  Academic article
• Sandvik, Arne K.; Støren, O.; Nørsett, K.; Børresen-Dale, Anne-Lise; Lægreid, A.; Myklebost, Ola. (2000) DNA Mikroarray- molekylære og teknologiske prinsipper. Tidsskrift for Den norske legeforening.
  Academic article
• Thommesen, Liv; Nørsett, Kristin; Hofsli, Eva; Sandvik, AK; Lægreid, Astrid. (2000) Regulation of inducible cAMP early repressor expression by gastrin and cholecystokinin in the pancreatic cell line AR42J. Journal of Biological Chemistry. volum 275.
  Academic article
• Waldum, Helge; Brenna, Eiliv; Sandvik, AK. (2000) The mechanism of histamine secretion from gastric enterochromaffin-like cells. American Journal of Physiology. volum 278.
  Feature article
• Waldum, Helge; Mårvik, R; Grønbech, JE; Sandvik, AK; Aase, S. (2000) Oxyntic lesions may be provoked in the rat both by the process of acid secretion and also by gastric acidity. Alimentary Pharmacology and Therapeutics.
  Academic article
• Waldum, Helge; Mårvik, R; Grønbech, JE; Sandvik, AK; Aase, S. (2000) Oxyntic lesions may be provoked in the rat both by the process of acid secretion and also by gastric acidity. Alimentary Pharmacology and Therapeutics. volum 14.
  Academic article
• Waldum, Helge; Mårvik, Ronald; Grønbech, Jon Erik; Sandvik, AK; Aase, Steinar. (2000) Oxyntic lesions may be provoked both by the process of acid secretion and the gastric acidity. Alimentary Pharmacology and Therapeutics. volum 14.
  Academic article
• Waldum, Helge; Mårvik, Ronald; Grønbech, Jon Erik; Sandvik, AK; Aase, Steinar. (2000) Oxyntic lesions may be provoked in the rat both by the process of acid secretion and also by gastric acidity. Alimentary Pharmacology and Therapeutics. volum 14.
  Academic article
• Waldum, Helge; Sandvik, AK; Brenna, Eiliv. (2000) The mechanism of histamine secretion from gastric enterochromaffin-like cells. American Journal of Physiology. volum 278.
  Feature article

1999

• Angelsen, Anders; Falkmer, Sture Emil; Sandvik, AK; Waldum, Helge. (1999) Pre- and postnatal testosterone administration induces proliferative epithelial lesions with neuroendocrine differentiation in the dorsal lobe of the rat prostate. The Prostate. volum 40.
  Academic article
• Angelsen, Anders; Falkmer, Sture Emil; Sandvik, Arne Kristian; Waldum, Helge. (1999) Pre- and Postnatal Testosterone Administration Induces Proliferative Epithelial Lesions With Neuroendocrine Differentiation in the Dorsal Lobe of the Rat Prostate. The Prostate. volum 40.
  Academic article
• Qvigstad, G; Bjørgaas, Marit; Eide, Inger; Sandvik, AK; Waldum, Helge. (1999) Vagal stimulation augments maximal (penta) gastrin-stimulated acid secretion in humans. Acta Physiologica Scandinavica. volum 165.
  Academic article
• Qvigstad, G; Bjørgaas, Marit; Eide, Inger; Sandvik, AK; Waldum, Helge. (1999) Vagal stimulation augments maximal (penta)gastrin stimulated acid secretion in man. Acta Physiologica Scandinavica. volum 165.
  Academic article
• Sandvik, AK. (1999) Luft i mage-tarmsystemet. Therapia medica. volum 3.
  Popular scientific article
• Sandvik, AK; Dockray, Graham J. (1999) Biological activity of carboxy-terminal gastrin analogs. European Journal of Pharmacology. volum 364.
  Academic article
• Waldum, Helge; Brenna, Eiliv; Sandvik, AK. (1999) Relationship of ECL cells and gastric neoplasia. The Yale Journal of Biology and Medicine. volum 71.
  Academic article
• Waldum, Helge; Brenna, Eiliv; Sandvik, AK. (1999) Risiko ved medikamentell syrehemming. Tidsskrift for Den norske legeforening. volum 119.
  Feature article
• Waldum, Helge; Brenna, Eiliv; Sandvik, AK. (1999) Risikoen ved uttalt syrehemming. Tidsskrift for Den norske legeforening. volum 119.
  Academic article
• Waldum, Helge; Qvigstad, G; Sandvik, AK. (1999) Letter to the editor. Authors' reply. Journal of Pathology. volum 189.
  Feature article
• Waldum, Helge; Sandvik, AK; Angelsen, Anders; Krokan, Hans Einar. (1999) The origin of gut and pancreatic neuroendocrine cells - the last word?. Journal of Pathology. volum 188.
  Academic article
• Waldum, Helge; Sandvik, AK; Angelsen, Anders; Krokan, Hans Einar; Falkmer, S. (1999) Re. Editorial entitled "The origin of gut and pancreatic neuroendocrine (APUD) cells-the last word?". Journal of Pathology.
  Academic article
• Waldum, Helge; Sandvik, AK; Angelsen, Anders; Krokan, Hans Einar; Falkmer, Sture Emil. (1999) The origin of gut and pancreatic neuroendocrine (APUD) cells - the last word?. Journal of Pathology. volum 188.
  Feature article
• Waldum, Helge; Sandvik, Arne Kristian; Angelsen, Anders; Krokan, Hans Einar; Falkmer, Sture Emil. (1999) Letter to the Editor: Re. Editorial entitled "The origin of gut and pancreatic neuroendocrine (APUD) cells - the last word?". Journal of Pathology. volum 188.
  Academic article
• Loenneche, Jan P.; Beisvåg, Vidar; Arbo, Ingerid; Waldum, Helge; Sandvik, AK; Knardahl, Stein; Ellingsen, Øyvind. (1999) Chronic carbon monoxide exposure in vivo induces myocardial endothelin-1 expression and hypertrophy in rat. Pharmacology and Toxicology. volum 85.
  Academic article
• Loennechen, Jan P.; Beisvag, Vidar; Arbo, Ingerid; Waldum, Helge L.; Sandvik, Arne K.; Knardahl, Stein; Ellingsen, Øyvind. (1999) Chronic monoxide exposure in vivo induces myocardial endothelin-1 expression and hyperthrophy in rat. Pharmacology and Toxicology. volum 85.
  Academic article

1998

• Angelsen, Anders; Sandvik, AK; Syversen, Unni; Stridsberg, Mats; Waldum, Helge. (1998) NGF-_b, NE-cells and prostatic cancer cell lines. A study of neuroendocrine expression in the human prostatic cancer cell lines DU-145, PC-3, LNCaP, and TSU-pr1 folowing stimulation of the nerve growth factor-_b. Scandinavian Journal of Urology and Nephrology. volum 32.
  Academic article
• Hammer, Tommy A.; Sandvik, AK; Waldum, Helge. (1998) Potentiating hypergastrinemic effect by the peroxisome proliferator ciprofibrate and omeprazole in the rat. Scandinavian Journal of Gastroenterology. volum 33.
  Academic article
• Sandvik, AK; Mårvik, Ronald; Dimaline, Rodney; Waldum, Helge. (1998) Carbachol stimulation of gastric acid secretion and its effect on the parietal cell. British Journal of Surgery. volum 124.
  Academic article
• Waldum, Helge; Aase, Steinar; Kvetnoi, Igor; Brenna, Eiliv; Sandvik, AK; Syversen, Unni; Johnsen, Gjermund; Vatten, Lars Johan; Polak, Julia M.. (1998) Neuroendocrine differentiation in human gastric carcinoma. Cancer. volum 83.
  Academic article
• Waldum, Helge; Brenna, Eiliv; Sandvik, AK. (1998) Maximal gastric acid secretion in man :a concept that needs precision. Scandinavian Journal of Gastroenterology. volum 33.
  Academic article
• Waldum, Helge; Brenna, Eiliv; Sandvik, AK; Syversen, Unni. (1998) Hormones and carcinogenesis. Endocrine-Related Cancer. volum 5.
  Academic article
• Waldum, Helge; Kvetnoi, Igor; Sylte, Rønnaug; Schulze, Britt; Martinsen, T.C.; Sandvik, AK. (1998) The effect of the peroxisome proliferator ciprofibrate on the gastric mucosa and particularly the gastrin cell. Journal of Molecular Endocrinology. volum 20.
  Academic article
• Waldum, Helge; Sandvik, AK. (1998) The relevance of luminal release is doubtful. Gastroenterology. volum 115.
  Feature article
• Waldum, Helge; Sandvik, AK; Idle, Jeffrey R. (1998) Gastrin is the most important factor in ECL tumorigenesis. Gastroenterology. volum 114.
  Feature article
• Waldum, Helge; Sandvik, AK; Idle, JR. (1998) Gastrin is the most important factor in ECL tumorigenesis. Gastroenterology. volum 114.
  Feature article

1997

• Angelsen, Anders; Mecsei, Reidun; Sandvik, AK; Waldum, Helge. (1997) Neuroendocrine cells in the prostate of the rat, guinea pig, cat, and dog. The Prostate. volum 33.
  Academic article
• Dimaline, Rod; Campbell, Barry J.; Watson, Fiona; Sandvik, AK; Struthers, John; Noble, P.-J.. (1997) Regulated expression of GATA-6 transcription factor in gastric endocrine cells. Gastroenterology. volum 112.
  Academic article
• Kvetnoy, I.; Sandvik, AK; Waldum, Helge. (1997) The diffuse neuroendocrine system and extrapineal melatonin. Journal of Molecular Endocrinology. volum 18.
  Academic article
• Kvetnoy, Igor M.; Yuzhakov, Vadim V.; Sandvik, AK; Waldum, Helge. (1997) Melatonin in mast cells and tumor radiosensitivity. Journal of Pineal Research. volum 22.
  Academic article
• Mårvik, Ronald; Sandvik, AK; Waldum, Helge. (1997) Evaluation of biologic gastrin activity of compound CI-988 in the isolated, vascularly perfused rat stomach. Scandinavian Journal of Gastroenterology. volum 32.
  Academic article
• Mårvik, Ronald; Sandvik, AK; Waldum, Helge. (1997) Gastrin stimulates histamine release from the isolated pig stomach. Scandinavian Journal of Gastroenterology. volum 32.
  Academic article
• Sandvik, AK; Brenna, Eiliv; Sundan, Anders; Holst, J.J.; Waldum, Helge. (1997) Bombesin inhibits histamine release from the rat oxyntic mucosa by a somatostatin-dependent mechanism. Scandinavian Journal of Gastroenterology. volum 32.
  Academic article
• Sandvik, AK; Brenna, Eiliv; Waldum, Helge. (1997) Review article: The pharmacological inhibition of gastric acid secretion : tolerance and rebound. Alimentary Pharmacology and Therapeutics. volum 11.
  Academic article

1996

• Martinsen, T.C.; Nesjan, Nils; Rønning, Kirsten Sagmyr; Sandvik, AK; Waldum, Helge. (1996) The peroxisome-proliferator ciprofibrate induces hypergastrinemia without raising gastric pH. Carcinogenesis. volum 17 (10).
  Academic article
• Rønning, Kirsten Sagmyr; Sandvik, AK; Waldum, Helge. (1996) The fade of gastrin-stimulated gastric acid secretion in the rat is due to depletion of releasable mucosal histamine. Acta Physiologica Scandinavica. volum 157.
  Academic article
• Sandvik, AK; Aase, Steinar; Kveberg, K.H.; Dalen, Are; Folvik, M.; Næss, O.. (1996) Papillomatosis of the esophagus. Journal of Clinical Gastroenterology. volum 22 (1).
  Academic article
• Syversen, Unni; Opsjøn, Sissel L.; Stridsberg, Mats; Sandvik, Arne Kristian; Dimaline, Rod; Tingulstad, Solveig; Arntzen, Knut J.; Brenna, Eiliv; Waldum, Helge. (1996) Chromogranin A and pancreastatin-like immunoreactivity in normal pregnancies. Journal of Clinical Endocrinology and Metabolism (JCEM). volum 81 (12).
  Academic article
• Waldum, Helge; Arnestad, J.S.; Brenna, Eiliv; Syversen, Unni; Sandvik, AK. (1996) Marked increase in gastric acid secretory capacity after omeprazole treatment. Gut. volum 39 (5).
  Academic article
• Waldum, Helge; Nilsen, Odd Georg; Nilsen, Turid; Rørvik, Hege; Syversen, Unni; Sandvik, AK; Haugen, Olav Anton; Torp, Sverre Helge; Brenna, Eiliv. (1996) Long-term effects of inhaled nicotine. Life Sciences. volum 58 (16).
  Academic article
• Waldum, Helge; Syversen, Unni; Sandvik, AK. (1996) Karosinoider. Sandoz informasjon. volum 96.
  Academic article

1988

• Waldum, Helge; Brenna, Eiliv; Sandvik, AK; Syversen, Unni. (1988) Hormones and carcinogenesis. Endocrine-Related Cancer. volum 5.
  Academic article
• Waldum, Helge; Kvetnoi, IM; Sylte, Rønnaug; Schulze, Britt; Martinsen, T.C.; Sandvik, AK. (1988) The effect of the peroxisomeproliferator ciprofibrate on the gastric mucosa and particularly the gastrin (G) cell. Journal of Molecular Endocrinology. volum 20.
  Academic article