Publications 2021

Durbeck A, Johannessen HO, Drolsum A, Johnson E (2021)
Very long-term outcome after resection rectopexy for internal rectal intussusception
Scand. J. Gastroenterol., 56 (1), 122-127
DOI 10.1080/00365521.2020.1853221

Haug HM, Carlsen E, Johannessen HO, Johnson E (2021)
Short-, long-, and very long-term results of secondary anterior sphincteroplasty in 20 patients with obstetric injury
Int. J. Colorectal Dis., 36 (12), 2775-2778
DOI 10.1007/s00384-021-04026-1

Hetland G, Johnson E, Bernardshaw SV, Grinde B (2021)
Can medicinal mushrooms have prophylactic or therapeutic effect against COVID-19 and its pneumonic superinfection and complicating inflammation?
Scand. J. Immunol., 93 (1), e12937
DOI 10.1111/sji.12937

Publications 2020

Fagerhol MK, Johnson E, Tangen JM, Hollan I, Mirlashari MR, Nissen-Meyer LSH, Hetland G (2020)
NETs analysed by novel calprotectin-based assays in blood donors and patients with multiple myeloma or rheumatoid arthritis: A pilot study
Scand. J. Immunol., 91 (5), e12870
DOI 10.1111/sji.12870

Gharagozlian S, Mala T, Brekke HK, Kolbjornsen LC, Ullerud AA, Johnson E (2020)
Nutritional status, sarcopenia, gastrointestinal symptoms and quality of life after gastrectomy for cancer-A cross-sectional pilot study
Clin. Nutr. ESPEN, 37, 195-201
DOI 10.1016/j.clnesp.2020.03.001

Hauge T, Amdal CD, Falk RS, Johannessen HO, Johnson E (2020)
Long-term outcome in patients operated with hybrid esophagectomy for esophageal cancer - a cohort study
Acta Oncol., 59 (7), 859-865
DOI 10.1080/0284186X.2020.1750694

Hauge T, Franco-Lie I, Loberg EM, Hauge T, Johnson E (2020)
Outcome after endoscopic treatment for dysplasia and superficial esophageal cancer - a cohort study
Scand. J. Gastroenterol., 55 (9), 1132-1138
DOI 10.1080/00365521.2020.1800813

Hetland G, Tangen JM, Mahmood F, Mirlashari MR, Nissen-Meyer LSH, Nentwich I, Therkelsen SP, Tjonnfjord GE, Johnson E (2020)
Antitumor, Anti-inflammatory and Antiallergic Effects ofAgaricus blazeiMushroom Extract and the Related Medicinal Basidiomycetes Mushrooms,Hericium erinaceusandGrifola frondosa: A Review of Preclinical and Clinical Studies
Nutrients, 12 (5), 1339
DOI 10.3390/nu12051339

Mala T, Forland DT, Vetti HH, Skagemo CU, Johannessen HO, Johnson E (2020)
Gastric adenocarcinoma and proximal ventricular polyposis - a rare form of hereditary stomach cancer
Tidsskr. Nor. Laegeforen., 140 (7), 676-679

Publications 2019

Hauge T, Kleven OC, Johnson E, Hofstad B, Johannessen HO (2019)
Outcome after iatrogenic esophageal perforation
Scand. J. Gastroenterol., 54 (2), 140-144
DOI 10.1080/00365521.2019.1575464

Johnson E, Therkelsen SP, Nentwich I, Nissen-Meyer LSH, Hetland G (2019)
IgE-sensitization to food and inhalant allergens in IBD patients compared with normal blood donors at Oslo University Hospital, Norway
Scand. J. Gastroenterol., 54 (9), 1107-1110
DOI 10.1080/00365521.2019.1663445

Publications 2018

Hauge T, Kleven OC, Johnson E, Hofstad B, Johannessen HO (2018)
Outcome after stenting and debridement for spontaneous esophageal rupture
Scand. J. Gastroenterol., 53 (4), 398-402
DOI 10.1080/00365521.2018.1448886

Hauge T, Kleven OC, Johnson E, Hofstad B, Johannessen HO (2018)
Outcome after accidental food bolus-induced esophageal perforation
Scand. J. Gastroenterol., 53 (8), 905-909
DOI 10.1080/00365521.2018.1495760

Mala T, Johannessen HO, Forland D, Jacobsen TH, Johnson E (2018)
Laparoscopic resection of ventricular cancer at Oslo University Hospital, Ulleval 2015-18
Tidsskr. Nor. Laegeforen., 138 (18), 1718-1723

Publications 2017

Amdal CD, Jacobsen AB, Falk RS, Johnson E, Os SS, Warloe T, Bjordal K (2017)
Improved treatment decisions in patients with esophageal cancer
Acta Oncol., 56 (10), 1286-1294
DOI 10.1080/0284186X.2017.1346379

Farnes I, Johnson E, Johannessen HO (2017)
Management of gastric conduit retention following hybrid and minimally invasive esophagectomy for esophageal cancer: Two retrospective case series
Int. J. Surg. Case Rep., 41, 505-510
DOI 10.1016/j.ijscr.2017.11.040

Publications 2016

Grotting MS, Loberg EM, Johannessen HO, Johnson E (2016)
Resection for oesophageal cancer - complications and survival
Tidsskr. Nor. Laegeforen., 136 (9), 809-813

Therkelsen SP, Hetland G, Lyberg T, Lygren I, Johnson E (2016)
Effect of a Medicinal Agaricus blazei Murill-Based Mushroom Extract, AndoSan (TM), on Symptoms, Fatigue and Quality of Life in Patients with Ulcerative Colitis in a Randomized Single-Blinded Placebo Controlled Study
PLoS One, 11 (3), e0150191
DOI 10.1371/journal.pone.0150191

Therkelsen SP, Hetland G, Lyberg T, Lygren I, Johnson E (2016)
Effect of the Medicinal Agaricus blazei Murill-Based Mushroom Extract, AndoSan (TM), on Symptoms, Fatigue and Quality of Life in Patients with Crohn's Disease in a Randomized Single-Blinded Placebo Controlled Study
PLoS One, 11 (7), e0159288
DOI 10.1371/journal.pone.0159288

Publications 2015

Hugin S, Johnson E, Johannessen HO, Hofstad B, Olafsen K, Mellem H (2015)
Gastrobronchial fistula following minimally invasive esophagectomy for esophageal cancer in a patient with myotonic dystrophy: Case report
Int. J. Surg. Case Rep., 17, 31-35
DOI 10.1016/j.ijscr.2015.10.023

Publications 2014

Vogel LK, Saebo M, Hoyer H, Kopp TI, Vogel U, Godiksen S, Frenzel FB, Hamfjord J, Bowitz-Lothe IM, Johnson E, Kure EH, Andersen V (2014)
Intestinal PTGS2 mRNA Levels, PTGS2 Gene Polymorphisms, and Colorectal Carcinogenesis
PLoS One, 9 (8), e105254
DOI 10.1371/journal.pone.0105254

Publications 2013

Hovde O, Lie OH, Johansson PA, Stubhaug O, Johnson E, Hofstad B, Hauge T (2013)
Iatrogenic esophago-tracheal fistula: Challenges in diagnosis and management
World J. Gastroenterol., 19 (4), 594-596
DOI 10.3748/wjg.v19.i4.594

Publications 2012

Johnson E, Forland DT, Hetland G, Saetre L, Olstad OK, Lyberg T (2012)
Effect of AndoSan (TM) on expression of adhesion molecules and production of reactive oxygen species in human monocytes and granulocytes in vivo
Scand. J. Gastroenterol., 47 (8-9), 984-992
DOI 10.3109/00365521.2012.660544

Kolseth IBM, Forland DT, Risoe PK, Flood-Kjeldsen S, Agren J, Reseland JE, Lyngstadaas SP, Johnson E, Dahle MK (2012)
Human monocyte responses to lipopolysaccharide and 9-cis retinoic acid after laparoscopic surgery for colon cancer
Scand. J. Clin. Lab. Invest., 72 (8), 593-601
DOI 10.3109/00365513.2012.721520

Publications 2011

Bornholdt J, Friis S, Godiksen S, Poulsen SS, Santoni-Rugiu E, Bisgaard HC, Lothe IMB, Ikdahl T, Tveit KM, Johnson E, Kure EH, Vogel LK (2011)
The level of claudin-7 is reduced as an early event in colorectal carcinogenesis
BMC Cancer, 11, 65
DOI 10.1186/1471-2407-11-65

Hetland G, Johnson E, Lyberg T, Kvalheim G (2011)
The Mushroom Agaricus blazei Murill Elicits Medicinal Effects on Tumor, Infection, Allergy, and Inflammation through Its Modulation of Innate Immunity and Amelioration of Th1/Th2 Imbalance and Inflammation
Adv. Pharmacol. Sci., 2011, 157015
DOI 10.1155/2011/157015

Publications 2010

Johnson E, Carlsen E, Steen TB, Hjorthaug JOB, Eriksen MT, Johannessen HO (2010)
Short- and long-term results of secondary anterior sphincteroplasty in 33 patients with obstetric injury
Acta Obstet. Gynecol. Scand., 89 (11), 1466-1472
DOI 10.3109/00016349.2010.519019

Publications 2007

Bernardshaw S, Lyberg T, Hetland G, Johnson E (2007)
Effect of an extract of the mushroom Agaricus blazei Murill on expression of adhesion molecules and production of reactive oxygen species in monocytes and granulocytes in human whole blood ex vivo
APMIS, 115 (6), 719-725
DOI 10.1111/j.1600-0463.2007.apm_619.x

Publications 2006

Landsend E, Johnson E, Johannessen HO, Carlsen E (2006)
Long-term outcome after intestinal resection for Crohn's disease
Scand. J. Gastroenterol., 41 (10), 1204-1208
DOI 10.1080/00365520600731018

Publications 2005

Bernardshaw S, Hetland G, Ellertsen LK, Tryggestad AMA, Johnson E (2005)
An extract of the medicinal mushroom Agaricus blazei Murill differentially stimulates production of pro-inflammatory cytokines in human monocytes and human vein endothelial cells in vitro
Inflammation, 29 (4-6), 147-153
DOI 10.1007/s10753-006-9010-2