Works by Waldum, Helge

Results: 129

Proton Pump Inhibitors and Dementia Incidence.

Published in:

JAMA Neurology, 2016, v. 73, n. 8, p. 1026, doi. 10.1001/jamaneurol.2016.1497

By:

Waldum, Helge L.;
Martinsen, Tom Christian

Publication type:

Article

Dysfunction of von-Hippel Lindau factor causes reduced degradation of HIF leading to renal cancer. Hypoxia-inducible factor-prolyl hydroxylase enzyme inhibitors also lessen HIF destruction and could therefore increase renal cancer.

Published in:

Frontiers in Pharmacology, 2023, p. 1, doi. 10.3389/fphar.2023.1170796

By:

Waldum, Helge

Publication type:

Article

Symptomatic Primary (AL) Amyloidosis of the Stomach and Duodenum.

Published in:

Case Reports in Gastrointestinal Medicine, 2013, p. 1, doi. 10.1155/2013/525439

By:

Fossmark, Reidar;
Skarsvåg, Espen;
Aarset, Harald;
Hjorth-Hansen, Henrik;
Waldum, Helge L.

Publication type:

Article

Tumor Classification Should Be Based on Biology and Not Consensus: Re-Defining Tumors Based on Biology May Accelerate Progress, An Experience of Gastric Cancer.

Published in:

Cancers, 2021, v. 13, n. 13, p. 3159, doi. 10.3390/cancers13133159

By:

Waldum, Helge

Publication type:

Article

Towards Understanding of Gastric Cancer Based upon Physiological Role of Gastrin and ECL Cells.

Published in:

Cancers, 2020, v. 12, n. 11, p. 3477, doi. 10.3390/cancers12113477

By:

Waldum, Helge;
Mjønes, Patricia

Publication type:

Article

Expression of non-mast cell histidine decarboxylase in tumor-associated microvessels in human esophageal squamous cell carcinomas.

Published in:

APMIS, 2008, v. 116, n. 12, p. 1034, doi. 10.1111/j.1600-0463.2008.01048.x

By:

ZHENFENG LI;
JINZHONG LIU;
FUAI TANG;
YIQING LIU;
WALDUM, HELGE L.;
GUANGLIN CUI

Publication type:

Article

Expression of neuroendocrine markers in non-small cell lung cancer.

Published in:

APMIS, 2007, v. 115, n. 2, p. 152, doi. 10.1111/j.1600-0463.2007.apm_542.x

By:

Sørhaug, Sveinung;
Steinshamn, Sigurd;
Haaverstad, Rune;
Nordrum, Ivar S.;
Martinsen, Tom C.;
Waldum, Helge L.

Publication type:

Article

Ultrastructure and chromogranin A immunogold labelling of ECL cell carcinoids.

Published in:

APMIS, 2005, v. 113, n. 7/8, p. 506, doi. 10.1111/j.1600-0463.2005.apm_147.x

By:

Fossmark, Reidar;
Martinsen, Tom C.;
Qvigstad, Gunnar;
Bendheim, Marianne Ø;
Kopstad, Gunnar;
Kashima, Kenji;
Waldum, Helge L.

Publication type:

Article

Dedifferentiation of enterochromaffin-like cells in gastric cancer of hypergastrinemic cotton rats.

Published in:

APMIS, 2005, v. 113, n. 6, p. 436, doi. 10.1111/j.1600-0463.2005.apm_134.x

By:

Fossmark, Reidar;
Chun-Mei Zhao;
Martinsen, Tom C.;
Kawasw, Shiro;
Duan Chen;
Waldum, Helge L.

Publication type:

Article

Eradication of Helicobacter pylori by a potassium-competitive acid blocker alone?

Published in:

Scandinavian Journal of Gastroenterology, 2025, v. 60, n. 1, p. 10, doi. 10.1080/00365521.2024.2444477

By:

Waldum, Helge;
Fossmark, Reidar

Publication type:

Article

Hypergastrinemia and mortality in gastric adenocarcinoma: a population-based cohort study, the HUNT study.

Published in:

Scandinavian Journal of Gastroenterology, 2022, v. 57, n. 5, p. 558, doi. 10.1080/00365521.2022.2026462

By:

Ness-Jensen, Eivind;
Bringeland, Erling Audun;
Mjønes, Patricia;
Lagergren, Jesper;
Grønbech, Jon Erik;
Waldum, Helge;
Fossmark, Reidar

Publication type:

Article

Pharmacokinetics of single and repeated oral doses of esomeprazole and gastrin elevation in healthy males and females.

Published in:

Scandinavian Journal of Gastroenterology, 2021, v. 56, n. 2, p. 128, doi. 10.1080/00365521.2020.1859610

By:

Helgadóttir, Hólmfríður;
Lund, Sigrún H.;
Gizurarson, Sveinbjörn;
Waldum, Helge;
Björnsson, Einar S.

Publication type:

Article

Clinical consequences of controversies in gastric physiology.

Published in:

Scandinavian Journal of Gastroenterology, 2020, v. 55, n. 6, p. 752, doi. 10.1080/00365521.2020.1771758

By:

Waldum, Helge L.

Publication type:

Article

Reflections after 10 years as Editor, including 8 years as Editor-in-Chief in Scandinavian Journal of Gastroenterology.

Published in:

2020

By:

Waldum, Helge L.

Publication type:

Editorial

Gastric cancer and gastrin: on the interaction of Helicobacter pylori gastritis and acid inhibitory induced hypergastrinemia.

Published in:

Scandinavian Journal of Gastroenterology, 2019, v. 54, n. 9, p. 1118, doi. 10.1080/00365521.2019.1663446

By:

Waldum, Helge L.;
Rehfeld, Jens F.

Publication type:

Article

Hepatic micrometastases outside macrometastases are present in all patients with ileal neuroendocrine primary tumour at the time of liver resection.

Published in:

Scandinavian Journal of Gastroenterology, 2019, v. 54, n. 8, p. 1003, doi. 10.1080/00365521.2019.1647281

By:

Fossmark, Reidar;
Balto, Tine M.;
Martinsen, Tom C.;
Grønbech, Jon E.;
Munkvold, Bjørn;
Mjønes, Patricia G.;
Waldum, Helge L.

Publication type:

Article

Proton pump inhibitors (PPIs) may cause gastric cancer - clinical consequences.

Published in:

Scandinavian Journal of Gastroenterology, 2018, v. 53, n. 6, p. 639, doi. 10.1080/00365521.2018.1450442

By:

Waldum, Helge L.;
Sørdal, Øystein;
Fossmark, Reidar

Publication type:

Article

Chronic cholestatic liver diseases.

Published in:

Scandinavian Journal of Gastroenterology, 2017, v. 52, n. 6/7, p. 788, doi. 10.1080/00365521.2017.1296276

By:

Waldum, Helge L.;
Björnsson, Einar S.;
Brenna, Eiliv

Publication type:

Article

Follow-up of patients with ECL cell-derived tumours.

Published in:

Scandinavian Journal of Gastroenterology, 2016, v. 51, n. 11, p. 1398, doi. 10.3109/00365521.2016.1169588

By:

Sagatun, Liv;
Fossmark, Reidar;
Jianu, Constantin S.;
Qvigstad, Gunnar;
Nordrum, Ivar S.;
Mjønes, Patricia;
Waldum, Helge L.

Publication type:

Article

Does long-term profound inhibition of gastric acid secretion increase the risk of ECL cell-derived tumors in man?

Published in:

Scandinavian Journal of Gastroenterology, 2016, v. 51, n. 7, p. 767, doi. 10.3109/00365521.2016.1143527

By:

Waldum, Helge L.;
Hauso, Øyvind;
Brenna, Eiliv;
Qvigstad, Gunnar;
Fossmark, Reidar

Publication type:

Article

5-Aminosalicylic acid, a specific drug for ulcerative colitis.

Published in:

Scandinavian Journal of Gastroenterology, 2015, v. 50, n. 8, p. 933, doi. 10.3109/00365521.2015.1018937

By:

Hauso, Øyvind;
Martinsen, Tom Christian;
Waldum, Helge

Publication type:

Article

Upper gastrointestinal physiology and diseases.

Published in:

Scandinavian Journal of Gastroenterology, 2015, v. 50, n. 6, p. 649, doi. 10.3109/00365521.2015.1009157

By:

Waldum, Helge L;
Kleveland, Per M;
Fossmark, Reidar

Publication type:

Article

The gastric mucosa 25 years after proximal gastric vagotomy.

Published in:

Scandinavian Journal of Gastroenterology, 2014, v. 49, n. 10, p. 1173, doi. 10.3109/00365521.2014.950979

By:

Sagatun, Liv;
Jianu, Constantin S;
Fossmark, Reidar;
Mårvik, Ronald;
Nordrum, Ivar S;
Waldum, Helge L

Publication type:

Article

The normal neuroendocrine cells of the upper gastrointestinal tract lack E-cadherin.

Published in:

Scandinavian Journal of Gastroenterology, 2014, v. 49, n. 8, p. 974, doi. 10.3109/00365521.2014.909275

By:

Waldum, Helge L.;
Ringnes, Eva;
Nordbø, Helene;
Sørdal, Øystein;
Nordrum, Ivar S.;
Hauso, Øyvind

Publication type:

Article

Editorial.

Published in:

Scandinavian Journal of Gastroenterology, 2013, v. 48, n. 10, p. 1107, doi. 10.3109/00365521.2013.832940

By:

Aabakken, Lars;
Waldum, Helge L

Publication type:

Article

Clinical experience with infliximab and adalimumab in a single-center cohort of patients with Crohn's disease.

Published in:

Scandinavian Journal of Gastroenterology, 2012, v. 47, n. 6, p. 649, doi. 10.3109/00365521.2012.672591

By:

Riis, Åse;
Martinsen, Tom C.;
Waldum, Helge L.;
Fossmark, Reidar

Publication type:

Article

Gastric neuroendocrine carcinoma after long-term use of proton pump inhibitor.

Published in:

Scandinavian Journal of Gastroenterology, 2012, v. 47, n. 1, p. 64, doi. 10.3109/00365521.2011.627444

By:

Jianu, Constantin S;
Lange, Ove J;
Viset, Trond;
Qvigstad, Gunnar;
Martinsen, Tom C;
Fougner, Reidun;
Kleveland, Per M;
Fossmark, Reidar;
Hauso, Øyvind;
Waldum, Helge L

Publication type:

Article

Inhibitors of gastric acid secretion increase the risk of prion infection in mice.

Published in:

Scandinavian Journal of Gastroenterology, 2011, v. 46, n. 12, p. 1418, doi. 10.3109/00365521.2011.619277

By:

Martinsen, Tom C.;
Benestad, Sylvie L.;
Moldal, Torfinn;
Waldum, Helge L.

Publication type:

Article

Activation of REG family proteins in colitis.

Published in:

Scandinavian Journal of Gastroenterology, 2011, v. 46, n. 11, p. 1316, doi. 10.3109/00365521.2011.605463

By:

Granlund, Atle Van Beelen;
Beisvag, Vidar;
Torp, Sverre H.;
Flatberg, Arnar;
Kleveland, Per Martin;
Østvik, Ann Elisabeth;
Waldum, Helge L.;
Sandvik, Arne K.

Publication type:

Article

Parietal cell activation by arborization of ECL cell cytoplasmic projections is likely the mechanism for histamine induced secretion of hydrochloric acid.

Published in:

Scandinavian Journal of Gastroenterology, 2011, v. 46, n. 5, p. 531, doi. 10.3109/00365521.2011.558113

By:

Gustafsson, Björn I.;
Bakke, Ingunn;
Hauso, Øyvind;
Kidd, Mark;
Modlin, Irvin M.;
Fossmark, Reidar;
Brenna, Eiliv;
Waldum, Helge L.

Publication type:

Article

Five-year follow-up of patients treated for 1 year with octreotide long-acting release for enterochromaffin-like cell carcinoids.

Published in:

Scandinavian Journal of Gastroenterology, 2011, v. 46, n. 4, p. 456, doi. 10.3109/00365521.2010.539255

By:

Jianu, Constantin S.;
Fossmark, Reidar;
Syversen, Unni;
Hauso, Øyvind;
Fykse, Vidar;
Waldum, Helge L.

Publication type:

Article

Long-term gastric changes in achlorhydric H<sup>+</sup>/K<sup>+</sup>-ATPase beta subunit deficient mice.

Published in:

Scandinavian Journal of Gastroenterology, 2010, v. 45, n. 9, p. 1042, doi. 10.3109/00365521.2010.490952

By:

Bakkelund, Karin E.;
Waldum, Helge L.;
Nordrum, Ivar Skjåk;
Hauso, Øyvind;
Fossmark, Reidar

Publication type:

Article

This month in Scandinavian Journal of Gastroenterology.

Published in:

Scandinavian Journal of Gastroenterology, 2010, v. 45, n. 7/8, p. 772, doi. 10.3109/00365521.2010.492709

By:

Waldum, Helge L.

Publication type:

Article

Rebound acid hypersecretion from a physiological, pathophysiological and clinical viewpoint.

Published in:

Scandinavian Journal of Gastroenterology, 2010, v. 45, n. 4, p. 389, doi. 10.3109/00365520903477348

By:

Waldum, Helge L.;
Qvigstad, Gunnar;
Fossmark, Reidar;
Kleveland, Per M.;
Sandvik, Arne K.

Publication type:

Article

This month in the Scandinavian Journal of Gastroenterology.

Published in:

Scandinavian Journal of Gastroenterology, 2009, v. 44, n. 8, p. 900, doi. 10.1080/00365520903113013

By:

Waldum, Helge L.

Publication type:

Article

Interactions between gastric acid secretagogues and the localization of the gastrin receptor.

Published in:

Scandinavian Journal of Gastroenterology, 2009, v. 44, n. 4, p. 390, doi. 10.1080/00365520802624219

By:

Waldum, Helge L.;
Kleveland, Per M.;
Brenna, Eiliv;
Bakke, Ingunn;
Qvigstad, Gunnar;
Martinsen, Tom Chr.;
Fossmark, Reidar;
Gustafsson, Bjørn I.;
Sandvik, Arne K.

Publication type:

Article

Effect of antrectomy in hypergastrinaemic female Japanese cotton rats.

Published in:

Scandinavian Journal of Gastroenterology, 2009, v. 44, n. 1, p. 32, doi. 10.1080/00365520802308011

By:

Bakkelund, Karin;
Fossmark, Reidar;
Nordrum, Ivar S.;
Waldum, Helge L.

Publication type:

Article

August issue of Scandinavian Journal of Gastroenterology.

Published in:

Scandinavian Journal of Gastroenterology, 2008, v. 43, n. 8, p. 899, doi. 10.1080/00365520802273348

By:

Waldum, Helge L.

Publication type:

Article

Serum gastrin and chromogranin A levels in patients with fundic gland polyps caused by long-term proton-pump inhibition.

Published in:

Scandinavian Journal of Gastroenterology, 2008, v. 43, n. 1, p. 20, doi. 10.1080/00365520701561959

By:

Fossmark, Reidar;
Jianu, Constantin S;
Martinsen, Tom C.;
Qvigstad, Gunnar;
Syversen, Unni;
Waldum, Helge L.

Publication type:

Article

pH 4.0.

Published in:

Scandinavian Journal of Gastroenterology, 2007, v. 42, n. 3, p. 297, doi. 10.1080/00365520600887828

By:

Fossmark, Reidar;
Brenna, Eiliv;
Waldum, Helge L.

Publication type:

Article

Capsule endoscopy in clinical routine in patients with suspected disease of the small intestine: A 2-year prospective study.

Published in:

Scandinavian Journal of Gastroenterology, 2006, v. 41, n. 5, p. 614, doi. 10.1080/00365520500335159

By:

Qvigstad, Gunnar;
Hatlen-Rebhan, Peter;
Brenna, Eiliv;
Waldum, Helge L.

Publication type:

Article

A new method for visualization of gut mucosal cells, describing the enterochromaffin cell in the rat gastrointestinal tract.

Published in:

Scandinavian Journal of Gastroenterology, 2006, v. 41, n. 4, p. 390, doi. 10.1080/00365520500331281

By:

Gustafsson, Björn I.;
Bakke, Ingunn;
Tømmerås, Karin;
Waldum, Helge L.

Publication type:

Article

One-year follow-up study of patients with enterochromaffin-like cell carcinoids after treatment with octreotide long-acting release.

Published in:

Scandinavian Journal of Gastroenterology, 2005, v. 40, n. 11, p. 1269, doi. 10.1080/00365520510023684

By:

Fykse, Vidar;
Kristian Sandvik, Arne;
Lyder Waldum, Helge

Publication type:

Article

Re. Editorial entitled 'The origin of gut and pancreatic neuroendocrine (APUD) cells-the last word?'.

Published in:

Journal of Pathology, 1999, v. 188, n. 1, p. 113, doi. 10.1002/(SICI)1096-9896(199905)188:1<113::AID-PATH318>3.0.CO;2-B

By:

Waldum, Helge. L.;
Sandvik, Arne. K.;
Angelsen, Anders;
Krokan, Hans;
Falkmer, Sture

Publication type:

Article

HERMOD PETERSEN.

Published in:

Journal of the Norwegian Medical Association / Tidsskrift for Den Norske Laegeforening, 2023, v. 143, n. 6, p. 561

By:

DYBDAHL, JAN H.;
KLEVELAND, PER MARTIN;
WALDUM, HELGE L.;
BRENNA, EILIV;
SANDVIK, ARNE K.

Publication type:

Article

Prospective study of the value of serum chromogranin A or serum gastrin levels in the assessment of the presence, extent, or growth of gastrinomas.

Published in:

1999

By:

Waldum, Helge L.;
Syversen, Unni;
Waldum, H L;
Syversen, U

Publication type:

commentary

Neuroendocrine differentiation in human gastric carcinoma.

Published in:

Cancer (0008543X), 1998, v. 83, n. 3, p. 435, doi. 10.1002/(SICI)1097-0142(19980801)83:3<435::AID-CNCR11>3.0.CO;2-X

By:

Waldum, Helge L.;
Aase, Steinar;
Kvetnoi, Igor;
Brenna, Eiliv;
Sandvik, Arne K.;
Syversen, Unni;
Johnsen, Gjermund;
Vatten, Lars;
Polak, Julia M.

Publication type:

Article

Animal Models to Study the Role of Long-Term Hypergastrinemia in Gastric Carcinogenesis.

Published in:

Journal of Biomedicine & Biotechnology, 2011, p. 1, doi. 10.1155/2011/975479

By:

Fossmark, Reidar;
Qvigstad, Gunnar;
Martinsen, Tom Chr.;
Hauso, Øyvind;
Waldum, Helge L.

Publication type:

Article

Neuron-Specific Enolase as an Immunohistochemical Marker Is Better Than Its Reputation.

Published in:

Journal of Histochemistry & Cytochemistry, 2017, v. 65, n. 12, p. 687, doi. 10.1369/0022155417733676

By:

Mjønes, Patricia;
Sagatun, Liv;
Nordrum, Ivar S.;
Waldum, Helge L.

Publication type:

Article

Hypergastrinemia is associated with an increased risk of gastric adenocarcinoma with proximal location: A prospective population‐based nested case‐control study.

Published in:

International Journal of Cancer, 2021, v. 148, n. 8, p. 1879, doi. 10.1002/ijc.33354

By:

Ness‐Jensen, Eivind;
Bringeland, Erling Audun;
Mattsson, Fredrik;
Mjønes, Patricia;
Lagergren, Jesper;
Grønbech, Jon Erik;
Waldum, Helge Lyder;
Fossmark, Reidar

Publication type:

Article