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1

Not only stem cells, but also mature cells, particularly neuroendocrine cells, may develop into tumours: time for a paradigm shift

Waldum, Helge L., Öberg, Kjell, Sørdal, Øystein F., Sandvik, Arne K., Gustafsson, Bjørn I., Mjønes, Patricia, Fossmark, Reidar

Journal:

Therapeutic Advances in Gastroenterology

Year:

2018

Language:

english

File:

PDF, 469 KB

english, 2018

2

Neuroendocrine differentiation in human gastric carcinoma

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

Journal:

Year:

1998

Language:

english

File:

PDF, 319 KB

english, 1998

3

The safety of proton pump inhibitors

Helge L. Waldum

Journal:

Alimentary Pharmacology & Therapeutics

Year:

2001

Language:

english

File:

PDF, 35 KB

english, 2001

4

Rebound acid hypersecretion from a physiological, pathophysiological and clinical viewpoint

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

Journal:

Scandinavian Journal of Gastroenterology

Year:

2010

Language:

english

File:

PDF, 126 KB

english, 2010

5

Maximal Gastric Acid Secretion in Man: A Concept That Needs Precision

Helge L. Waldum, Eiliv Brenna, Arne,

Journal:

Scandinavian Journal of Gastroenterology

Year:

1998

Language:

english

File:

PDF, 105 KB

english, 1998

6

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

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

Journal:

Scandinavian Journal of Gastroenterology

Year:

2018

Language:

english

File:

PDF, 658 KB

english, 2018

7

Hormonal Signaling in Biology and Medicine || Stomach Hormones

Year:

2020

Language:

english

File:

PDF, 1.49 MB

english, 2020

8

The increase in early-onset gastric carcinomas from 1995 is probably due to the introduction of proton pump inhibitors

Waldum, Helge L.

Journal:

Year:

2020

File:

PDF, 154 KB

2020

9

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

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

Journal:

The Journal of Pathology

Year:

1999

Language:

english

File:

PDF, 112 KB

english, 1999

10

Neuroendocrine differentiation in carcinomas of the prostate: Do neuroendocrine serum markers reflect immunohistochemical findings?

Angelsen, Anders, Syversen, Unni, Haugen, Olav A., Stridsberg, Mats, Mjølnerød, Ove Kr., Waldum, Helge L.

Journal:

Year:

1997

Language:

english

File:

PDF, 307 KB

english, 1997

11

Use of neuroendocrine serum markers in the follow-up of patients with cancer of the prostate

Angelsen, Anders, Syversen, Unni, Stridsberg, Mats, Haugen, Olav A., Mjølnerød, Ove Kr., Waldum, Helge L.

Journal:

Year:

1997

Language:

english

File:

PDF, 274 KB

english, 1997

12

Neuroendocrine cells in the prostate of the rat, guinea pig, cat, and dog

Angelsen, Anders, Mecsei, Reidun, Sandvik, Arne K., Waldum, Helge L.

Journal:

Year:

1997

Language:

english

File:

PDF, 164 KB

english, 1997

13

Pre- and postnatal testosterone administration induces proliferative epithelial lesions with neuroendocrine differentiation in the dorsal lobe of the rat prostate

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

Journal:

Year:

1999

Language:

english

File:

PDF, 1.70 MB

english, 1999

14

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

Helge L. Waldum, Unni Syversen

Journal:

Year:

1999

Language:

english

File:

PDF, 37 KB

english, 1999

15

Neuroendocrine tumor epidemiology : Contrasting Norway and North America

Oyvind Hauso, Bjorn I. Gustafsson, Mark Kidd, Helge L. Waldum, Ignat Drozdov, Anthony K. C. Chan, Irvin M. Modlin

Journal:

Year:

2008

Language:

english

File:

PDF, 288 KB

english, 2008

16

Long-term serotonin administration leads to higher bone mineral density, affects bone architecture, and leads to higher femoral bone stiffness in rats

Björn I. Gustafsson, Irene Westbroek, Jan H. Waarsing, Helge Waldum, Erik Solligård, Anders Brunsvik, Sigbjørn Dimmen, Johannes P.T.M. van Leeuwen, Harrie Weinans, Unni Syversen

Journal:

Journal of Cellular Biochemistry

Year:

2006

Language:

english

File:

PDF, 217 KB

english, 2006

17

Decreased bone mineral density and reduced bone quality in H+/K+ATPase beta-subunit deficient mice

Reidar Fossmark, Astrid K. Stunes, Christiane Petzold, Helge L. Waldum, Marina Rubert, Aina-Mari Lian, Janne E. Reseland, Unni Syversen

Journal:

Journal of Cellular Biochemistry

Year:

2012

Language:

english

File:

PDF, 235 KB

english, 2012

18

Chronic inhalation of carbon monoxide: Effects on the respiratory and cardiovascular system at doses corresponding to tobacco smoking

Sveinung Sørhaug, Sigurd Steinshamn, Odd G. Nilsen, Helge L. Waldum

Journal:

Year:

2006

Language:

english

File:

PDF, 728 KB

english, 2006

19

Neuroendocrine differentiation in gastric adenocarcinomas associated with severe hypergastrinemia and/or pernicious anemia

Gunnar Qvigstad, Tor Qvigstad, Bjørn Westre, Arne K. Sandvik, Ejliv Brenna, Helge L. Waldum

Journal:

Year:

2002

Language:

english

File:

PDF, 210 KB

english, 2002

20

The Cellular Localization of the Cholecystokinin 2 (Gastrin) Receptor in the Stomach

Helge L. Waldum, Per M. Kleveland, Arne K. Sandvik, Eiliv Brenna, Unni Syversen, Ingunn Bakke, Karin Tømmerås

Journal:

Basic & Clinical Pharmacology & Toxicology

Year:

2002

Language:

english

File:

PDF, 61 KB

english, 2002

21

Non-proliferative capacity of endocrine cells of the human gastro-intestinal tract

Helge L. Waldum, Eiliv Brenna, Peter A. Hall, Nicholas A. Wright

Journal:

Journal of Molecular Histology

Year:

1996

Language:

english

File:

PDF, 176 KB

english, 1996

22

Antral G cells in rats during dosing with a PPARα agonist: a morphometric and immunocytochemical study

T. C. Martinsen, Nan E. T. Skogaker, Marianne Ø. Bendheim, Helge L. Waldum

Journal:

Medical Molecular Morphology

Year:

2003

Language:

english

File:

PDF, 1.41 MB

english, 2003

23

Lanzoprazole promotes gastric carcinogenesis in rats with duodenogastric reflux

Asgaut Viste, Kjell ØvrebØ, Helga Maartmann-Moe, Helge Waldum

Journal:

Year:

2004

Language:

english

File:

PDF, 200 KB

english, 2004

24

Antiulcer Drugs and Gastric Cancer

Helge L. Waldum, Bjørn Gustafsson, Reidar Fossmark, Gunnar Qvigstad

Journal:

Digestive Diseases and Sciences

Year:

2005

Language:

english

File:

PDF, 67 KB

english, 2005

25

A meal test improves the specificity of chromogranin A as a marker of neuroendocrine neoplasia

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

Journal:

Year:

2010

Language:

english

File:

PDF, 215 KB

english, 2010

26

Ultrastructure and chromogranin A immunogold labelling of ECL cell carcinoids

REIDAR FOSSMARK, TOM C. MARTINSEN, GUNNAR QVIGSTAD, MARIANNE Ø. BENDHEIM, GUNNAR KOPSTAD, KENJI KASHIMA, HELGE L. WALDUM

Journal:

Year:

2005

Language:

english

File:

PDF, 466 KB

english, 2005

27

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

REIDAR FOSSMARK, CHUN-MEI ZHAO, TOM C. MARTINSEN, SHIRO KAWASE, DUAN CHEN, HELGE L. WALDUM

Journal:

Year:

2005

Language:

english

File:

PDF, 750 KB

english, 2005

28

Expression of neuroendocrine markers in non-small cell lung cancer : A biochemical, immunohistochemical and ultrastructural study

SVEINUNG SØRHAUG, SIGURD STEINSHAMN, RUNE HAAVERSTAD, IVAR S. NORDRUM, TOM C. MARTINSEN, HELGE L. WALDUM

Journal:

Year:

2007

Language:

english

File:

PDF, 502 KB

english, 2007

29

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

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

Journal:

Year:

2008

Language:

english

File:

PDF, 452 KB

english, 2008

30

Chronic Carbon Monoxide Exposure in vivo Induces Myocardial Endothelin-1 Expression and Hypertrophy in Rat

Jan P. Loennechen, Vidar Beisvag, Ingerid Arbo, Helge L. Waldum, Arne K. Sandvik, Stein Knardahl, Øyvind Ellingsen

Journal:

Basic & Clinical Pharmacology & Toxicology

Year:

1999

Language:

english

File:

PDF, 719 KB

english, 1999

31

Melatonin in mast cells and tumor radiosensitivity

Igor M. Kvetnoy, Vadim V. Yuzhakov, Arne K. Sandvik, Helge L. Waldum

Journal:

Journal of Pineal Research

Year:

1997

Language:

english

File:

PDF, 189 KB

english, 1997

32

Clinical and histopathological tumour progression in ECL cell carcinoids (“ECLomas”)

Gunnar Qvigstad, Sture Falkmer, BjøRn Westre, Helge L. Waldum

Journal:

Year:

1999

Language:

english

File:

PDF, 1.78 MB

english, 1999

33

Rebound Hypersecretion after Inhibition of Gastric Acid Secretion

Gunnar Qvigstad, Helge Waldum

Journal:

Basic & Clinical Pharmacology & Toxicology

Year:

2004

Language:

english

File:

PDF, 82 KB

english, 2004

34

Gastric Juice: A Barrier Against Infectious Diseases

Tom C. Martinsen, Kåre Bergh, Helge L. Waldum

Journal:

Basic & Clinical Pharmacology & Toxicology

Year:

2005

Language:

english

File:

PDF, 103 KB

english, 2005

35

Assessment of the Risk of Iatrogenic Hypergastrinaemia from Patients with Gastrinoma

Journal:

Basic & Clinical Pharmacology & Toxicology

Year:

2006

Language:

english

File:

PDF, 27 KB

english, 2006

36

Carbachol stimulation of gastric acid secretion and its effects on the parietal cell

Arne K Sandvik, Ronald Mårvik, Rod Dimaline, Helge L Waldum

Journal:

British Journal of Pharmacology

Year:

1998

Language:

english

File:

PDF, 332 KB

english, 1998

37

Somatostatin-receptor 2 (sst2)-mediated effects of endogenous somatostatin on exocrine and endocrine secretion of the rat stomach

Vidar Fykse, David H Coy, Helge Lyder Waldum, Arne Kristian Sandvik

Journal:

British Journal of Pharmacology

Year:

2005

Language:

english

File:

PDF, 145 KB

english, 2005

38

Detection of Chromogranin A in Human Gastric Adenocarcinomas using a Sensitive Immunohistochemical Technique

Gunnar Qvigstad, Arne K. Sandvik, Eiliv Brenna, Steinar Aase, Helge L. Waldum

Journal:

Journal of Molecular Histology

Year:

2000

Language:

english

File:

PDF, 98 KB

english, 2000

39

Relationship Between the Eff icacy of Amoxicillin and Intragastric pH for the Treatment of Helicobacter pylori Infection

Per M. Kleveland, Helge L. Waldum, Eiliv Brenna, Steinar Aase, Johan A. Mæland

Journal:

Year:

1997

Language:

english

File:

PDF, 305 KB

english, 1997

40

Enhanced expression of CXCL10 in inflammatory bowel disease: Potential role of mucosal toll-like receptor 3 stimulation

Ann E. Østvik, Atle vB Granlund, Marit Bugge, Nadra J. Nilsen, Sverre H. Torp, Helge L. Waldum, Jan K. Damås, Terje Espevik, Arne K. Sandvik

Journal:

Inflammatory Bowel Diseases

Year:

2012

Language:

english

File:

PDF, 1.30 MB

english, 2012

41

Chronic Exposure to Carbon Monoxide and Nicotine: Endothelin ETA Receptor Antagonism Attenuates Carbon Monoxide-Induced Myocardial Hypertrophy in Rat

Jan P. Loennechen, Odd G. Nilsen, Ingerid Arbo, Petter Aadahl, Turid Nilsen, Helge L. Waldum, Arne K. Sandvik, Øyvind Ellingsen

Journal:

Toxicology and Applied Pharmacology

Year:

2002

Language:

english

File:

PDF, 114 KB

english, 2002

42

Role of prostaglandins and histamine in hyperemic response to superficial and deep gastric mucosal injury and H+back-diffusion in cats

Hjörtur Gislason, Halfdan Sørbye, Farzad Abdi-Dezfuli, Helge L. Waldum, Knut Svanes

Journal:

Digestive Diseases and Sciences

Year:

1995

Language:

english

File:

PDF, 881 KB

english, 1995

43

Letter to the editor

Waldum, Helge, Qvigstad, Gunnar, Falkmer, Sture

Journal:

Virchows Archiv

Year:

2001

Language:

english

File:

PDF, 12 KB

english, 2001

44

Long-term effects of inhaled nicotine

Helge L. Waldum, Odd G. Nilsen, Turid Nilsen, Hege Rørvik, Unni Syversen, Arne K. Sandvik, Olav A. Haugen, Sverre H. Torp, Eiliv Brenna

Journal:

Year:

1996

Language:

english

File:

PDF, 602 KB

english, 1996

45

Gene expression based classification of gastric carcinoma

Kristin G Nørsett, Astrid Lægreid, Herman Midelfart, Fekadu Yadetie, Sten Even Erlandsen, Sture Falkmer, Jon E Grønbech, Helge L Waldum, Jan Komorowski, Arne K Sandvik

Journal:

Year:

2004

Language:

english

File:

PDF, 147 KB

english, 2004

46

Octreotide induces apoptosis in the oxyntic mucosa

Sten Even Erlandsen, Vidar Fykse, Helge L. Waldum, Arne K. Sandvik

Journal:

Molecular and Cellular Endocrinology

Year:

2007

Language:

english

File:

PDF, 210 KB

english, 2007

47

Long-term serotonin effects in the rat are prevented by terguride

Øyvind Hauso, Björn I. Gustafsson, Jan P. Loennechen, Astrid K. Stunes, Ivar Nordrum, Helge L. Waldum

Journal:

Regulatory Peptides

Year:

2007

Language:

english

File:

PDF, 1.39 MB

english, 2007

48

Release of neuroendocrine products in the pulmonary circulation during intermittent hypoxia in isolated rat lung

Sveinung Sørhaug, Sigurd Steinshamn, Bjørn Munkvold, Helge L. Waldum

Journal:

Respiratory Physiology & Neurobiology

Year:

2008

Language:

english

File:

PDF, 990 KB

english, 2008

49

Rat parietal cells express CCK2 receptor mRNA: gene expression analysis of single cells isolated by laser-assisted microdissection

Karin Tømmerås, Ingunn Bakke, Arne K Sandvik, Erik Larsson, Helge L Waldum

Journal:

Biochemical and Biophysical Research Communications

Year:

2002

Language:

english

File:

PDF, 161 KB

english, 2002

50

Reg protein in gastric cancer tumour cells

Helge L Waldum, Gunnar Qvigstad, Arne K Sandvik

Journal:

Year:

2003

Language:

english

File:

PDF, 138 KB

english, 2003