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Arnold Berstad

Professor
  • E-mailArnold.Berstad@uib.no
  • Phone+47 55 97 21 33
  • Visitor Address
    Haukeland universitetssykehus, Laboratoriebygget
  • Postal Address
    Postboks 7804
    5020 Bergen
Academic article
  • Våge, Villy; Nilsen, Roy Miodini; Berstad, Arnold; Behme, Jan Horst; Sletteskog, Nils; Gåsdal, Stein Ronny; Laukeland, Camilla; Mellgren, Gunnar. 2013. Predictors for remission of major components of the metabolic syndrome after biliopancreatic diversion with duodenal switch (BPDDS). Obesity Surgery. 80-86.
  • Lind, Ragna Anne; Berstad, Arnold; Hatlebakk, Jan G; Valeur, Jørgen. 2013. Chronic fatigue in patients with unexplained self-reported food hypersensitivity and irritable bowel syndrome: validation of a Norwegian translation of the Fatigue Impact Scale. Clinical and Experimental Gastroenterology. 101-107.
  • Vaali, Kirsi Kaarina; Lappalainen, Jani; Lin, Aung Htun; Mäyränpää, Mikko I.; Kovanen, Petri T.; Berstad, Arnold; Eklund, Kari K. 2012. Imatinib mesylate alleviates diarrhea in a mouse model of intestinal allergy. Neurogastroenterology and Motility. e325-e335.
  • Berstad, Arnold; Undseth, Ragnhild M; Lind, Ragna; Valeur, Jørgen. 2012. Functional bowel symptoms, fibromyalgia and fatigue: A food-induced triad? Scandinavian Journal of Gastroenterology. 914-919.
  • Våge, Villy; Gåsdal, Stein Ronny; Laukeland, Camilla; Sletteskog, Nils; Behme, Jan Horst; Berstad, Arnold; Andersen, John Roger. 2011. The Biliopancreatic Diversion with a Duodenal Switch (BPDDS): How Is It Optimally Performed? Obesity Surgery. 1864-1869.
  • Gregersen, Kine; Valeur, Jørgen; Lillestøl, Kristine; Frøyland, Livar; Araujo, Hernandez Pedro W.; Lied, Gülen Arsland; Berstad, Arnold. 2011. Subjective food hypersensitivity: assessment of enterochromaffin cell markers in blood and gut lavage fluid. International Journal of General Medicine. 555-560.
  • Valeur, Jørgen; Morken, Mette Helvik; Norin, E; Midtvedt, T; Berstad, Arnold. 2010. Intestinal fermentation in patients with self-reported food hypersensitivity: painful, but protective? Clinical and Experimental Gastroenterology. 65-70.
  • Lied, Gülen Arsland; Lillestøl, Kristine; Valeur, Jørgen; Berstad, Arnold. 2010. Intestinal B cell-activating factor: an indicator of non-IgE mediated hypersensitivity reactions to food? Alimentary Pharmacology and Therapeutics. 66-73.
  • Lillestøl, Kristine; Helgeland, Lars Inge; Lied, Gülen Arsland; Florvaag, Erik; Valeur, Jørgen; Lind, Ragna; Berstad, Arnold. 2010. Indications of 'atopic bowel' in patients with self-reported food hypersensitivity. Alimentary Pharmacology and Therapeutics. 1112-1122.
  • Berstad, Arnold; Erchinger, Friedemann; Hjartholm, Aud-Sissel. 2010. Fecal fat determination with a modified titration method. Scandinavian Journal of Gastroenterology. 603-607.
  • Gregersen, Kine; Lind, Ragna; Valeur, Jørgen; Bjørkkjær, Tormod; Berstad, Arnold; Lied, Gülen Arsland. 2010. Duodenal administered seal oil for patients with subjective food hypersensitivity: an explorative open pilot study. International Journal of General Medicine. 383-392.
  • Lind, Ragna; Lied, Gülen Arsland; Lillestøl, Kristine; Valeur, Jørgen; Berstad, Arnold. 2010. Do psychological factors predict symptom severity in patients with subjective food hypersensitivity? Scandinavian Journal of Gastroenterology. 835-843.
  • Lillestøl, Kristine; Berstad, Arnold; Lind, Ragna; Florvaag, Erik; Lied, Gülen Arsland; Tangen, Tone. 2010. Anxiety and depression in patients with self-reported food hypersensitivity. General Hospital Psychiatry. 42-48.
  • Morken, Mette Helvik; Lind, Ragna; Valeur, Jørgen; Wilhelmsen, Ingvard; Berstad, Arnold. 2009. Subjective health complaints and quality of life in patients with irritable bowel syndrome following Giardia lamblia infection: A case control study. Scandinavian Journal of Gastroenterology. 308-313.
  • Landsvik, Hanne Sylte; Valeur, Jørgen; Berstad, Arnold. 2009. Helseeffekter av probiotika - en kritisk vurdering. Norsk Tidsskrift for Ernæring. 22-26.
  • Valeur, Jørgen; Lappalainen, Jani; Rita, Hannu; Lin, Aung Htun; Kovanen, Petri T.; Berstad, Arnold; Eklund, Kari K.; Vaali, Kirsi Kaarina. 2009. Food allergy alters jejunal circular muscle contractility and induces local inflammatory cytokine expression in a mouse model. BMC Gastroenterology.
  • Valeur, Jørgen; Morken, Mette Helvik; Norin, Elisabeth; Midtvedt, Tore; Berstad, Arnold. 2009. Carbohydrate intolerance in patients with self-reported food hypersensitivity: Comparison of lactulose and glucose. Scandinavian Journal of Gastroenterology. 1416-1423.
  • Morken, Mette Helvik; Valeur, Jørgen; Norin, Elisabeth; Midtvedt, Tore; Nysæter, Gunnar; Berstad, Arnold. 2009. Antibiotic or bacterial therapy in post-giardiasis irritable bowel syndrome. Scandinavian Journal of Gastroenterology. 1296-1303.
  • Bjørkkjær, Tormod; ARAUJO, HERNANDEZ PEDRO W; Madland, Tor Magne; Berstad, Arnold; Frøyland, Livar. 2009. A randomized double blind comparison of short-term duodenally administrated whale and seal blubber oils in patients with inflammatory bowel disease and joint pain. Prostaglandins, Leukotrienes and Essential Fatty Acids. 425-432.
  • Tack, Johannes; Masclee, Ad A.M.; Heading, Robert C.; Berstad, Arnold; Piessevaux, Hubert; Popiela, Tadeusz; Vandenberghe, Annelies; Kato, Hiroki. 2009. A dose-ranging, placebo-controlled, pilot trial of Acotiamide in patients with functional dyspepsia. Neurogastroenterology and Motility. 272-280.
  • Lunding, Johan Axel; Nordström, Lars Michael; Haukelid, Alf-Olav; Gilja, Odd Helge; Berstad, Arnold; Hausken, Trygve. 2008. Vagal activation by sham feeding improves gastric motility in functional dyspepsia. Neurogastroenterology and Motility. 618-624.
  • Valeur, Jørgen; Øines, Eliann; Morken, Mette Helvik; Holst, Jens Juul; Berstad, Arnold. 2008. Plasma glucagon-like peptide 1 and peptide YY levels are not altered in symptomatic fructose-sorbitol malabsorption. Scandinavian Journal of Gastroenterology. 1212-1218.
  • Vesterhus, Mette; Ræder, Helge; Aurlien, Harald; Gjesdal, Clara Gram; Bredrup, Cecilie; Holm, Pål Ivar; Molven, Anders; Bindoff, Laurence; Berstad, Arnold; Njølstad, Pål Rasmus. 2008. Neurological features and enzyme therapy in patients with endocrine and exocrine pancreas dysfunction due to CEL mutations. Diabetes Care. 1738-1740.
  • Nysæter, Gunnar; Berstad, Arnold. 2008. Live typhoid vaccine for IBD patients - well tolerated with possible therapeutic effect. Drug Target Insights. 109-113.
  • Lind, Ragna; Olafsson, Snorri; Hjelland, Ina; Berstad, Arnold; Lied, Gülen Arsland. 2008. Lifestyle of patients with self-reported food hypersensitivity differ little from controls. Gastroenterology Nursing. 401-410.
  • Jarlsby, Ragnhild; Valeur, Jørgen; Berstad, Arnold. 2008. Laktosemalabsorbsjon - en fordel? Norsk Tidsskrift for Ernæring. 10-13.
  • Morken, Mette Helvik; Nysæter, Gunnar; Strand,, Elisabeth A.; Hausken, Trygve; Berstad, Arnold. 2008. Lactulose breath test results in patients with persistent abdominal symptoms following Giardia lamblia infection. Scandinavian Journal of Gastroenterology. 141-145.
  • Brunborg, Linn Anne Bjelland; Madland, Tor Magne; Lind, Ragna; Arslan, Gülen; Berstad, Arnold; Frøyland, Livar. 2008. Effects of short-term oral administration of dietary marine oils in patients with inflammatory bowel diease: a pilot study comapring weal oil and cod liver oil. Clinical Nutrition. 614-622.
  • Gregersen, Kine; Lind, Ragna; Bjørkkjær, Tormod; Frøyland, Livar; Berstad, Arnold; Lied, Gülen Arsland. 2008. Effects of seal oil on meal-induced symptoms and gastric accommodation in patients with subjective food hypersensitivity. A pilot study. Clinical Medicine : Gastroenterology. 33-41.
  • Gregersen, Kine; Frøyland, Livar; Berstad, Arnold; Araujo, Pedro. 2008. Direct determination of serotonin in gut lavage fluid by liquid chromatographic ion trap tandem mass spectrometry. Talanta: The International Journal of Pure and Applied Analytical Chemistry. 466-472.
  • Arslan, Gülen; Erichsen, Kari; Milde, Anne Marita; Helgeland, Lars Inge; Bjørkkjær, Tormod; Frøyland, Livar; Berstad, Arnold. 2007. No Protection against DSS-induced Colitis by Short-term Pretreatment with Seal or Fish Oils in Rats. Integrative Medicine Insights. 25-34.
  • ARAUJO, HERNANDEZ PEDRO W; Bjørkkjær, Tormod; Berstad, Arnold; Frøyland, Livar. 2007. Improved quantification of prostaglandins in biological samples by optimizing simultaneously the relationship eicosanoid/internal standard and using liquid chromatography tandem mass spectrometry. Prostaglandins, Leukotrienes and Essential Fatty Acids. 9-13.
  • Lunding, Johan Axel; Gilja, Odd Helge; Hausken, Trygve; Bayati, Alfred; Mattsson, Hillevi; Berstad, Arnold. 2007. Distension-induced gastric accommodation in functional dyspepsia: effect of autonomic manipulation. Neurogastroenterology and Motility. 365-375.
  • Hjelland, Ina Elen; Svebak, Sven; Berstad, Arnold; Flatabø, Geir; Hausken, Trygve. 2007. Breathing exercises with vagal biofeedback may benefit patients with functional dyspepsia. Scandinavian Journal of Gastroenterology. 1054-1062.
  • Madland, Tor Magne; Bjørkkjær, Tormod; Brunborg, Linn Anne Bjelland; Frøyland, Livar; Berstad, Arnold; Brun, Johan G. 2006. Subjective improvement in patients with psoriatic arthritis after short-term oral treatment with seal oil. A pilot study with double blind comparison to soy oil. Journal of Rheumatology. 307-310.
  • Bjørkkjær, Tormod; Brun, Johan G; Valen, Merete; Arslan, Gülen; Lind, Ragna Anne; Brunborg, Linn Anne Bjelland; Berstad, Arnold; Frøyland, Livar. 2006. Short-term duodenal seal oil administration normalised n-6 to n-3 fatty acid ratio in rectal mucosa and ameliorated bodily pain in patients with inflammatory bowel disease. Lipids in Health and Disease.
  • Bjørkkjær, Tormod; Brun, Johan G; Valen, Merete; Arslan, Gülen; Lind, Ragna; Brunborg, Linn Anne Bjelland; Berstad, Arnold; Frøyland, Livar. 2006. Lipids in health and disease. Lipids in Health and Disease.
  • Arslan, Gülen; Lillestøl, Kristine; Mulahasanovic, Arna; Florvaag, Erik; Berstad, Arnold. 2006. Food Hypersensitivity Reactions Visualised by Ultrasonography and Magnetic Resonance Imaging in a Patient Lacking Systemic Food-Specific IgE. Digestion. 111-115.
  • Arslan, Gülen; Gilja, Odd Helge; Lind, Ragna Anne; Florvaag, Erik; Berstad, Arnold. 2005. Response to intestinal provocation monitored by transabdominal ultrasound in patients with food hypersensitivity. Scandinavian Journal of Gastroenterology. 386-394.
  • Erichsen, Kari; Ulvik, Rune Johan; Nysæter, Gunnar; Johansen, Jack; Ostborg, Jens; Berstad, Arnold; Berge, Rolf Kristian; Hausken, Trygve. 2005. Oral ferrous fumarate or intravenous iron sucrose for patients with inflammatory bowel disease. Scandinavian Journal of Gastroenterology. 1058-1065.
  • Hjelland, Ina Elen; Oveland, Nils Petter; Leversen, Katrine Tyborg; Berstad, Arnold; Hausken, Trygve. 2005. Insulin-induced hypoglycemia stimulates gastric vagal activity and motor function without increasing cardiac vagal activity. Digestion. 43-48.
  • Arslan, Gülen; Lind, Ragna Anne; Florvaag, Erik; Berstad, Arnold. 2005. Gastrointestinal matoverfølsomhet hos voksne - nye studier om mulige årsaker. Fagbladet Allergi i praksis. 12-17.
  • Berstad, Arnold; Arslan, Gülen; Lind, Ragna Anne; Florvaag, Erik. 2005. Food hypersensitivity-immunologic (peripheral) or cognitive (central) sensitisation? Psychoneuroendocrinology. 983-989.
  • Erichsen, Kari; Ulvik, Rune Johan; Grimstad, Tore; Berstad, Arnold; Berge, Rolf Kristian; Hausken, Trygve. 2005. Effects of ferrous sulphate and non-ionic iron-polymaltose complex on markers of oxidative tissue damage in patients with inflammatory bowel disease. Alimentary Pharmacology and Therapeutics. 831-838.
  • Lied, Gülen Arsland; Lind, Ragna; Florvaag, Erik; Berstad, Arnold. 2005. Berstad A. Matoverfølsomhet hos voksne – nye studier om mulige årsaker. Fagbladet Allergi i praksis. 12-17.
  • Bjørkkjær, T.; Brunborg, L.A.; Arslan, Gülen; Lind, Ragna Anne; Brun, Johan G; Valen, M.; Klementsen, B.; Berstad, Arnold; Frøyland, Livar. 2004. Reduced joint pain after short-term duodenal administration of seal oil in patients with inflammatory bowel disease: comparison with soy oil. Scandinavian Journal of Gastroenterology. 1088-1094.
  • Wilhelmsen, Ingvard; Berstad, Arnold. 2004. Reduced Relapse Rate in Duodenal Ulcer Disease Leads to Normalization of Psychological Distress: Twelve-year Follow-up. Scandinavian Journal of Gastroenterology. 717-721.
  • Arslan, Gülen; Lind, Ragna Anne; Olafsson, S.; Florvaag, Erik; Berstad, Arnold. 2004. Quality of life in patients with subjective food hypersensitivity: applicability of the 10-item short form of the Nepean Dyspepsia Index. Digestive Diseases and Sciences. 680-687.
  • Lied, Gülen Arsland; Lind, Ragna; Olafsson, Snorri; Florvaag, Erik; Berstad, Arnold. 2004. Quality of life in patients with subjective food hypersensitivity: Applicability of the 10-item short form of the Nepean Dyspepsia Index. Digestive Diseases and Sciences. 680-687.
  • Arslan, Gülen; Kahrs, G.E.; Lind, Ragna Anne; Frøyland, Livar; Florvaag, Erik; Berstad, Arnold. 2004. Patients with subjective food hypersensitivity: the value of analyzing intestinal permeability and inflammation markers in gut lavage fluid. Digestion. 26-35.
  • Lied, Gülen Arsland; Kahrs, Gudrun Elise; Lind, Ragna; Frøyland, Livar; Florvaag, Erik; Berstad, Arnold. 2004. Patients with subjective food hypersensitivity: The value of analysing intestinal permeability and inflammation markers in gut lavage fluid. Digestion. 26-35.
  • Henriksen, T.H.; Lerang, F.; Lia, A.; Schøyen, R.; Thoresen, T.; Berge, T.; Ragnhildstveit, E.; Tveten, Y.; Berstad, Arnold. 2004. Laboratory handling of Helicobacter pylori critically influences the results of in-vitro metronidazole resistance determination. Clinical Microbiology and Infection. 315-321.
  • Berstad, Arnold; Nysaeter, G.; Berstad, Audun. 2004. Innvollsorm mot inflammatorisk tarmsykdom. Tidsskrift for Den norske legeforening. 3220-3221.
  • Hjelland, Ina; Ofstad, A.P.; Narvestad, J.K.; Berstad, Arnold; Hausken, Trygve. 2004. Drink tests in functional dyspepsia: which drink is best? Scandinavian Journal of Gastroenterology. 933-937.
  • Erichsen, Kari; Hausken, Trygve; Ulvik, Rune Johan; Svardal, A.; Berstad, Arnold; Berge, Rolf Kristian. 2003. Ferrous fumarate deteriorated plasma antioxidant status in patients with Crohn disease. Scandinavian Journal of Gastroenterology. 543-548.
  • Hjelland, Ina; Hausken, Trygve; Svebak, Sven; Olafsson, Snorri; Berstad, Arnold. 2002. Vagal tone and meal-induced abdominal symptoms in healthy subjects. Digestion. 172-176.
  • Gilja, Odd Helge; Heimdal, Andreas; Hausken, Trygve; Gregersen, Hans; Matre, Knut; Berstad, Arnold; Ødegaard, Svein. 2002. Strain during gastric contractions can be measured using Doppler ultrasonography. Ultrasound in Medicine and Biology. 1457-1465.
  • Olafsson, Snorri; Hatlebakk, Jan G; Berstad, Arnold. 2002. Patients with endoscopic gastritis and/or duodenitis improve markedly following eradication of Helicobacter pylori, although less so than patients with ulcers. Scandinavian Journal of Gastroenterology. 1386-1394.
  • Gregersen, Hans; Gilja, Odd Helge; Hausken, Trygve; Heimdal, Andreas; Gao, Chunwen; Matre, Knut; Ødegaard, Svein; Berstad, Arnold. 2002. Mechanical properties in the human gastric antrum using B-mode ultrasonography and antral distension. American Journal of Physiology - Gastrointestinal and Liver Physiology. G368-G375.
  • Vaage, Villy; Solhaug, Jan Helge; Berstad, Arnold; Svanes, Knut; Viste, Asgaut. 2002. Jejunoileal bypass in the treatment of morbid obesity: a 25-year follow-up study of 36 patients. Obesity Surgery. 312-318.
  • Arslan, Gülen; Ødegaard, Svein; Elsayed, Said; Florvaag, Erik; Berstad, Arnold. 2002. Food allergy and intolerance: response to intestinal provocation monitored by endosonography. European Journal of Ultrasound. 29-36.
  • Olafsdottir, Edda Jonina; Aksnes, Lage; Fluge, Gjermund; Berstad, Arnold. 2002. Faecal calprotectin levels in infants with infantile colic, healthy infants, children with inflammatory bowel disease, children with recurrent abdominal pain and healthy children. Acta Paediatrica. 45-50.
  • Tefera, Solomon; Hatlebakk, Jan G; Berstad, Audun Elnæs; Berstad, Arnold. 2002. Eradication of Helicobacter pylori does not increase acid reflux in patients with mild to moderate reflux oesophagitis. Scandinavian Journal of Gastroenterology. 877-883.
  • Arslan, Gülen; Brunborg, Linn Anne; Frøyland, Livar; Brun, Johan G; Valen, Merete; Berstad, Arnold. 2002. Effects of duodenal seal oil administration in patients with inflammatory bowel disease. Lipids. 935-940.
  • Lied, Gülen Arsland; Brunborg, Linn Anne Bjelland; Frøyland, Livar; Brun, Johan G; Valen, Merete; Berstad, Arnold. 2002. Effects of duodenal seal oil administration in patients with inflammatory bowel disease. Lipids. 935-940.
  • Rystedt, E.; Olin, M.; Seyama, Y.; Buchmann, M.; Berstad, Arnold; Eggertsen, G.; Björkheim, Ingemar. 2002. Cerebrotendinous xanthomatosis: molecular characterization of two Scandinavian sisters. Journal of Internal Medicine. 259-264.
  • Berstad, Arnold. 2002. COX-2-hemmere til pasienter med inflammatorisk tarmsykdom. Tidsskrift for Den norske legeforening. 2651-2651.
  • Arslan, Gülen; Berstad, Arnold. 2001. The levels of calprotectin in inflammatory bowel diseases. Güncel Gastroenteroloji (Turky). 84-88.
  • Tefera, Solomon; Hatlebakk, Jan Gunnar; Berstad, Arnold. 2001. Stability of gastric secretory inhibition during 6-month treatment with omeprazole in patients with gastroesophageal reflux disease. American Journal of Gastroenterology. 969-974.
  • Olafsdottir, Edda Jonina; Ellertsen, Bjørn; Berstad, Arnold; Fluge, Gjermund. 2001. Personality profiles and heart rate variability (vagal tone) in children with recurrent abnominal pain. Acta Paediatrica. 632-637.
  • Tefera, Solomon; Gilja, Odd Helge; Hatlebakk, Jan Gunnar; Berstad, Arnold. 2001. Gastric accommodation studied by ultrasonography in patients with reflux esophagitis. Digestive Diseases and Sciences. 618-625.
  • Berstad, Arnold; Olafsson, Snorri; Tefera, Solomon; Hatlebakk, Jan Gunnar; Gilja, Odd Helge; Hausken, Trygve. 2001. Controversies in dyspepsia. European Journal of Surgery Supplement. 4-11.
  • Svebak, Sven; Søndenaa, Karl; Hausken, Trygve; Søreide, Odd; Hammar, Åse; Berstad, Arnold. 2000. The significance of personality in pain from gallbladder stone. Scandinavian Journal of Gastroenterology. 759-764.
  • Berstad, Arnold; Lied, Gülen Arsland; Folvik, Geir. 2000. Relationship between intestinal permeability and calprotectin concentration in gut lavage fluid. Scandinavian Journal of Gastroenterology.
  • Henriksen, T. H.; Lia, A.; Schøyen, R.; Thoresen, T.; Berstad, Arnold. 2000. Assessment of optimal atmospheric conditions for growth of Helicobacter pylori. European Journal of Clinical Microbiology and Infectious Diseases. 718-720.
  • Berstad, Arnold. 1998. Today's therapy of functional gastrointestinal disorders - does it help? European Journal of Surgery Supplement. 92-97.
  • Hausken, Trygve; Gilja, Odd Helge; Undeland, Karl Anton; Berstad, Arnold. 1998. Timing of postprandial dyspeptic symptoms and transpyloric passage of gastric content. Scandinavian Journal of Gastroenterology. 822-827.
  • Berstad, AE; Berstad, K; Berstad, Arnold. 1998. Patofysiologi ved Helicobacter pylori-infeksjon. Tidsskrift for Den norske legeforening. 2790-2793.
  • Berstad, Arnold. 1998. Mulig ny behandling ved Crohns sykdom. Antistoff mot TNF (tumor nekrose faktor). Fordøyelsen. 4-5.
  • Berstad, Arnold; Hausken, Trygve; Gilja, Odd Helge; Nesland, Aa; Ødegaard, Svein. 1998. Imaging studies in dyspepsia. European Journal of Surgery Supplement. 52-49.
  • Berstad, Arnold. 1998. Hvem blør på nytt og hvorfor. Therapia medica. 29-31.
  • Undeland, Karl Anton; Hausken, Trygve; Gilja, Odd Helge; Aanderud, Sylvi; Berstad, Arnold. 1998. Gastric meal accomodation studied by ultrasound in patients with diabetes. Relation to vagal tone. Scandinavian Journal of Gastroenterology. 236-241.
  • Undeland, Karl Anton; Hausken, Trygve; Gilja, Odd Helge; Aanderud, Sylvi; Berstad, Arnold. 1998. Gastric meal accomodation and symptoms in diabetes. A placebo-controlled study of Glyceryl Nitrate. European Journal of Gastroenterology and Hepathology. 677-681.
  • Undeland, Karl Anton; Hausken, Trygve; Gilja, Odd Helge; Aanderud, Sylvi; Berstad, Arnold. 1998. Gastric meal accommodation studied by ultrasound in diabetes. Relation to vagal tone. Scandinavian Journal of Gastroenterology. 236-241.
  • Undeland, Karl Anton; Hausken, Trygve; Gilja, Odd Helge; Aanderud, Sylvi; Berstad, Arnold. 1998. Gastric meal accommodation and symptoms in diabetes. A placebocontrolled study of glyceryl trinitrate. European Journal of Gastroenterology and Hepathology. 677-681.
  • Hausken, Trygve; Gilja, Odd Helge; Ødegaard, Svein; Berstad, Arnold. 1998. Flow across the human pylorus soon after ingestion of food, studied with duplex sonography. Effect of glyceryl trinitrate. Scandinavian Journal of Gastroenterology. 484-490.
  • Gustafsson, A; Lund-Tønnesen, Stein; Berstad, Arnold; Midtvedt, T.; Norin, E. 1998. Faecol short-term fatty acids in patients with antibiotic associated diarrhoea, before and after faecal enema treatment. Scandinavian Journal of Gastroenterology. 722-727.
  • Gustafsson, A; Lund-Tønnesen, Stein; Berstad, Arnold; Midtvedt, T; Norin, E. 1998. Faecal short-chain fatty acids in patients with antibiotic-associated diarrhoea, before and after faceal enema treatment. Scandinavian Journal of Gastroenterology. 721-727.
  • Hveem, K; Hausken, Trygve; Svebak, S; Berstad, Arnold. 1998. Effect of mental stress and cisapride on autonomic nerve functions in functional dyspepsia. Scandinavian Journal of Gastroenterology. 123-127.
  • Lund-Tønnesen, Stein; Berstad, Arnold; Schreiner, Aksel; Midtvedt, T. 1998. Clostridium difficile-assosiert diare behandlet med homolog feces. Tidsskrift for Den norske legeforening. 1027-1030.
  • Lund-Tønnesen, Stein; Berstad, Arnold; Schreiner, Aksel; Midtvedt, T. 1998. Clostridiuim difficile-assosiert diaré behandlet med homolog feces. Tidsskrift for Den norske legeforening. 1027-1030.
  • Berstad, Arnold; Hatlebakk, Jan Gunnar; Giercksky, K-E. 1998. Barretts øsofagus. Et økende problem. Tidsskrift for Den norske legeforening. 4100-4103.
  • Hatlebakk, Jan Gunnar; Berstad, Arnold. 1997. Prognostic factors for relapse of reflux oesophagitis and symptoms during 12 months of therapy with lansoprazole. Alimentary Pharmacology and Therapeutics. 1093-1099.
  • Undeland, K. A.; Hausken, Trygve; Aanderud, Sylvi; Berstad, Arnold. 1997. Lower postprandial gastric volume response in diabetic patients with vagal neuropathy. Neurogastroenterology and Motility. 19-24.
  • Hatlebakk, Jan Gunnar; Berstad, Arnold. 1997. Lansoprazole 15 and 30 mg daily in maintenance therapy of reflux oesophagitis. Alimentary Pharmacology and Therapeutics. 365-372.
  • Berstad, Arnold; Hatlebakk, Jan Gunnar; Maartmann-Moe, H.; Brandtzaeg, P. 1997. Helicobacter pylori gastritis and epithelial cell proliferation in patients with reflux oesophagitis after treatment with lansoprazole. Gut. 740-747.
  • Berstad, Arnold; Hausken, Trygve; Gilja, Odd Helge; Hveem, K.; Undeland, K. S.; Wilhelmsen, Ingvard; Haug, Tone Tangen. 1997. Gastric accommodation in functional dyspepsia. [Review]. Scandinavian Journal of Gastroenterology. 193-197.
  • Hatlebakk, Jan Gunnar; Berstad, Arnold. 1997. Endoscopic grading of reflux oesophagitis: what observations correlate with gastro-oesophagal reflux? Scandinavian Journal of Gastroenterology. 760-765.
  • Gilja, Odd Helge; Hausken, Trygve; Wilhelmsen, Ingvard; Olafsson, Snorri; Berstad, Arnold. 1997. Dèfaut d'adaptation de l'estomac proximal au repas, dans la dyspepsie fonctionelle. Gastroenterology Digest. 13-17.
  • Hausken, Trygve; Søndenaa, Karl; Svebak, S; Gilja, Odd Helge; Olafsson, Snorri; Ødegaard, Svein; Søreide, Odd; Berstad, Arnold. 1997. Common pathogenic mechanisms in symptomatic, uncomplicated gallstone disease and functional dyspepsia. Volume measurement of gallbladder and antrum using three-dimensional ultrasonography. Digestive Diseases and Sciences. 2505-2512.
  • Undeland, KA; Hausken, Trygve; Svebak, S; Ånderud, S; Berstad, Arnold. 1996. Wide gastric antrum and low vagal tone in patients with diabetes mellitus type I compared to patients with functional dyspepsia and healthy individuals. Digestive Diseases and Sciences. 9-16.
  • Berstad, Arnold; Hatlebakk, JG. 1996. Patobiologi ved Barretts osofagus. Therapia medica. 6-8.
  • Berstad, Arnold; Hausken, Trygve; Gilja, OH; Thune, N; Matre, Knut; Ødegaard, Svein. 1995. Volume measurements of the antrum by 3D-ultrasonography and flow measurements through the pylorus by duplex technique. Digestive Diseases and Sciences. 97-100.
  • Berstad, Arnold; Hatlebakk, JG. 1995. The predictive value of symptoms in gastro-oesophageal reflux disease. Scandinavian Journal of Gastroenterology, Supplement. 1-4.
  • Berstad, Arnold. 1995. Spontal kolitt hos mus. Therapia medica. 22-24.
  • Steen, T; Berstad, K; Meling, T; Berstad, Arnold. 1995. Reproducibility of the %1%4C urea breath test repeated after 1 week. American Journal of Gastroenterology. 2103-2105.
  • Gilja, OH; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1995. Monitoring postpandrial size of the proximal stomach by ultrasonography. Journal of ultrasound in medicine. 81-89.
  • Hatlebakk, JG; Berstad, Arnold. 1995. Lansoprazole capsules and amoxicillin oral suspension in the treatment of peptic ulcer disease. Scandinavian Journal of Gastroenterology. 1053-1057.
  • Gilja, OH; Smievoll, AI; Thune, N; Matre, Knut; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1995. In vivo comparison of 3D ultrasonography and Magnetic Response Imaging in volume estimation of human kidneys. Ultrasound in Medicine and Biology. 25-32.
  • Undeland, KA; Hausken, Trygve; Gilja, OH; Ropert, A; Galmiche, JP; Berstad, Arnold. 1995. Gastric relaxation in response to a soup meal in healthy subjects. A study using a barostat in the proximal stomach. Scandinavian Journal of Gastroenterology. 1069-1076.
  • Berstad, Arnold; Hatlebakk, JG; Wilhelmsen, Ingvard; Berstad, K; Bang, CJ; Nysæter, G; Hausken, Trygve; Weberg, R; Nesje, LB; Hjartholm, A-S. 1995. Follow-up on 242 patients with peptic ulcer disease one year after eradication of Helicobacter pylori infection. Hepato-Gastroenterology. 655-659.
  • Hausken, Trygve; Thune, N.; Matre, Knut; Gilja, O.H.; Ødegaard, Svein; Berstad, Arnold. 1994. Volume estimation of the gastric antrum and the gallbladder in patients with non-ulcer dyspepsia and erosive prepyloric changes, using three-dimensional ultrasonography. Neurogastroenterology and Motility. 263-270.
  • Hausken, Trygve; Thune, N.; Matre, Knut; Gilja, Odd Helge; Ødegaard, Svein; Berstad, Arnold. 1993. New device shows enlarged antrum in dyspeptic patients. Internat Gastroenterol Observer. 5-6.
  • Hatlebakk, Jan Gunnar; Berstad, Arnold; Carling, Lasse; Halvorsen, Lars Erik; Svedberg, Lars-Erik; Unge, Peter; Ekstrom, Per Fredrik; Stallemo, Asbjørn; Hovdenak, Nils; Trondstad, R.I.; Kittang, Eirik; Lange, Ove Juel. 1993. Lansoprazole versus omeprazole in short-term treatment of reflux oesophagitis. Results of a Scandinavian multicentre trial. Scandinavian Journal of Gastroenterology. 224-228.
  • Hausken, Trygve; Ødegaard, Svein; Matre, Knut; Børkje, Bjarte; Berstad, Arnold. 1992. Untersuchungen der gastroduodenalen Motilität mit Realtime Ultrasonographie. Ultraschall in Klinik und Praxis.
  • Hausken, Trygve; Berstad, Arnold; Matre, Knut; Ødegaard, Svein. 1992. Antroduodenal motility and movements of luminal contents studied by Duplex-sonography. Gastroenterology. 1583-1590.
Academic lecture
  • Undseth, Ragnhild Marie; Berstad, Arnold; Klow, Nils-Einar; Valeur, Jørgen. 2014. FODMAP-intoleranse ved IBS: En MRI-studie.
  • Undseth, Ragnhild Marie; Berstad, Arnold; Valeur, Jørgen. 2013. FODMAP-intolerance in IBS: Visualization by Magnetic Resonance Imaging.
  • Berstad, Arnold; Valeur, Jørgen. 2012. Fibromyalgi og kronisk tretthetssyndrom hos pasienter med matoverfølsomhet.
  • Valeur, Jørgen; Morken, Mette Helvik; Norin, E; Midtvedt, T; Berstad, Arnold. 2009. Karbohydratintoleranse ved IBS.
  • Valeur, Jørgen; Morken, Mette Helvik; Norin, E.; Midtvedt, T.; Berstad, Arnold. 2009. Irritable bowel syndrome - an enterometabolic disorder?
  • Valeur, Jørgen; Morken, Mette Helvik; Norin, E; Midtvedt, T; Berstad, Arnold. 2009. Ingestion of lactulose replicates habitual symptoms in patients with irritable bowel syndrome.
  • Lillestøl, Kristine; Valeur, Jørgen; Helgeland, Lars Inge; Florvaag, Erik; Lied, Gülen Arsland; Lind, Ragna; Berstad, Arnold. 2009. Indications of `atopic bowel` in patients with irritable bowel syndrome (IBS).
  • Valeur, Jørgen; Helle, Karen Blaauw; Berstad, Arnold. 2009. A role for chromogranin A in functional gastrointestinal disorders?
  • Bjørkkjær, Tormod; Frøyland, Livar; Berstad, Arnold. 2006. Selolje i sonde mot IBD-leddsmerter – vago-vagal anti-inflammatorisk refleks?
  • Bjørkkjær, Tormod; Araujo, Pedro; Madland, Tor Magne; Berstad, Arnold; Frøyland, Livar. 2006. Comparison of the effects of short-term duodenal administration of whale and seal oils on joint pain in patients with inflammatory bowel disease: A double blind randomized controlled study.
  • Bjørkkjær, Tormod; Araujo, Pedro; Berstad, Arnold; Frøyland, Livar. 2006. COMPARISON OF THE EFFECTS OF SHORT-TERM DUODENAL ADMINISTRATION OF WHALE AND SEAL OILS ON JOINT PAIN IN PATIENTS WITH INFLAMMATORY BOWEL DISEASE: A DOUBLE BLIND RANDOMIZED CONTROLLED STUDY.
  • Bjørkkjær, Tormod; Brunborg, Linn Anne Bjelland; Arslan, Gülen; Lind, Ragna Anne; Brun, Johan G; Valen, Merete; Klementsen, Beate; Berstad, Arnold; Frøyland, Livar. 2005. Effekt av selolje vs soyaolje på leddsmerter ved inflammatorisk tarmsykdom.
  • Arslan, Gülen; Bjørkkjær, Tormod; Brun, Johan G; Frøyland, Livar; Berstad, Arnold. 2004. Seal oil compared to soy oil in patients with inflammatory bowel disease.
  • Milde, Anne Marita; Arslan, Gulen; Overmier, James Bruce; Berstad, Arnold; Murison, Robert. 2004. Effects of an acute stressor on chemically sensitization and permeability of the colon in adult rats.
  • Arslan, Gülen; Bjørkkjær, Tormod; Frøyland, Livar; Brun, Johan G; Berstad, Arnold. 2003. Seal oil compared to soy oil in patients with inflammatory bowel disease.
  • Arslan, Gülen; Erichsen, Kari; Milde, Anne Marita; Gudbrandsen, Oddrun; Helgeland, Lars; Basu, Simon; Berge, Rolf Kristian; Murison, Robert; Hausken, Trygve; Frøyland, Livar; Berstad, Arnold. 2003. Effects of Omega-3 Fatty Acids on DSS-induced Colitis in Rats.
  • Erichsen, Kari; Gudbrandsen, Oddrun; Arslan, Gülen; Milde, Anne Marita; Helgeland, Lars; Ulvik, Rune Johan; Frøyland, Livar; Berstad, Arnold; Berge, Rolf Kristian; Hausken, Trygve. 2003. Effect of Ferrous Fumarate Supplementation in Dextran Sulfate Sodium Colitis in Rats.
  • Lunding, Johan Axel; Tefera, Solomon; Hausken, Trygve; Gilja, Odd Helge; Berstad, Arnold. 2002. Symptom perception and gastric response to an increasing gastric water load with and without simultaneous duodenal lipid infusion in functional dyspepsia using 3D ultrasound.
  • Hjelland, Ina; Ofstad, Anne Pernille; Narvestad, Jon Kristian; Berstad, Arnold; Hausken, Trygve. 2001. Viseral Perception Studied by a drink test and three-dimensional ultrasound in Functional Dyspepsia.
  • Hjelland, Ina; Ofstad, Anne Pernille; Narvestad, Jon Kristian; Berstad, Arnold; Hausken, Trygve. 2001. Viseral Perception Studied by a drink test and three-dimensional ultrasound in Functional Dyspepsia.
  • Tefera, Solomon; Gilja, Odd Helge; Olafsdottir, Edda Jonina; Hausken, Trygve; Berstad, Arnold. 2001. In vivo validation of transabdominal three-dimensional ultrasonography of the stomach.
  • Arslan, Gülen; Ødegaard, Svein; Elsayed, Said; Florvaag, Erik; Berstad, Arnold. 2001. Endosonographic allergen provocation test for assessment of intestinal food intolerance.
  • Hausken, Trygve; Dizdar, T; Sunde, I; Gilja, Odd Helge; Olafsson, S.; Berstad, Arnold. 2000. Visceral perception studied by a drink test and three-dimensional ultrasound.
  • Tefera, Solomon; Gilja, Odd Helge; Olafsdottir, Edda Jonina; Hausken, Trygve; Hatlebakk, Jan G; Berstad, Arnold. 2000. Intragastric maldistribution in patients with reflux oesophagitis studied by an accurate 3D ultrasound system.
  • Tefera, Solomon; Gilja, Odd Helge; Olafsdottir, Edda Jonina; Hausken, Trygve; Berstad, Arnold. 2000. In vivo validation of transabdominal three-dimensional ultrasonsography of the human stomach.
  • Olafsson, S.; Gilja, Odd Helge; Hausken, Trygve; Berstad, Arnold. 2000. Antral area and proximal stomach size in fibromyalgia and controls measured by ultrasonography.
  • Gilja, Odd Helge; Heimdal, A; Hausken, Trygve; Gregersen, H; Matre, Knut; Ødegaard, Svein; Berstad, Arnold. 2000. A novel method using color Doppler ultrasonography to study relative strain of the muscle layers during antral contractions.
  • Gilja, Odd Helge; Hausken, Trygve; Undeland, Karl Anton; Olafsdottir, Edda Jonina; Ødegaard, Svein; Berstad, Arnold. 1998. Ultrasonographic measurement of proximal gastric accomodation.
  • Wilhelmsen, Ingvard; Hatlebakk, Jan Gunnar; Olafsson, Snorri; Berstad, Arnold. 1998. On demand therapy of reflux oesophagitis: a study of symptoms, patient satisfaction and quality of life.
  • Hausken, Trygve; Ødegaard, Svein; Gilja, Odd Helge; Berstad, Arnold. 1998. Mixing of gastric content is evoked by heart contractions and respiration.
  • Gilja, Odd Helge; Hausken, Trygve; Olafsson, Snorri; Undeland, Karl Anton; Ødegaard, Svein; Berstad, Arnold. 1998. Gastric accommodation studied by ultrasonography.
  • Berstad, Arnold; Lied, Gülen Arsland; Folvik, Geir; Florvaag, Erik; Elsayed, Said. 1998. Correlation between intestinal permeability and luminal calprotectin concentration.
  • Gilja, Odd Helge; Olafsson, Snorri; Undeland, Karl Anton; Tefera, Solomon; Ødegaard, Svein; Berstad, Arnold. 1998. Accomodation of the proximal stomach studied by ultrasonography.
  • Erichsen, K.; Hausken, Trygve; Berge, R.K.; Ulvik, Rune Johan; Berstad, Arnold. 1997. Jernintoleranse ved Crohn's sykdom.
  • Vingerhagen, S.; Hausken, Trygve; Gilja, Odd Helge; Berstad, Arnold. 1997. Influence of a 5HT1 receptor agonist (Sumatriptan) on gastric accommodation and initial transpyloric flow of a liquid meal examined by duplex sonography.
  • Berstad, Arnold. 1996. Hva er en funksjonell tilstand?
  • Berstad, Arnold. 1996. Behandling med forvandling. Introduction.
  • Hundal, Øyvind; Bergseth, Monica; Andersen, Knut-Jan; Berstad, Arnold. 1996. Absorption of bismuth from two bismuth compounds: The influence of present peptic and duodenal ulcer.
  • Gilja, OH; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1995. Tre-dimensjonal ultrasonografi av antrum.
  • Gilja, OH; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1995. Three-dimensional ultrasonography of the gastric antrum in patients with functional dyspepsia. Oral presentation.
  • Gilja, OH; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1995. Three-dimensional ultrasonography of the gastric antrum in patients with functional dyspepsia. Oral presentation.
  • Gilja, OH; Hausken, Trygve; Berstad, Arnold. 1995. Three-dimensional ultrasonography of the gastric antrum in patients with functional dyspepsia (Oral presentation).
  • Gilja, OH; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1995. Three-dimensional ultrasonography of the gastric antrum in patients with functional dyspepsia.
  • Wilhelmsen, Ingvard; Berstad, Arnold. 1995. Quality of life, dyspeptic symptoms and relapse of duodenal ulcer before and after eradication of Helicobacter pylori.
  • Hausken, Trygve; Søndenaa, K; Svebak, S; Martens, D; Gilja, OH; Søreide, Odd; Ødegaard, Svein; Berstad, Arnold. 1995. Patients with symptomatic, uncomplicated gallstone disease exhibit findings similar to functional dyspepsia. Volume measurement using three-dimensional ultrasonography. Oral presentation.
  • Hausken, Trygve; Søndenaa, K; Svebak, S; Martens, D; Gilja, OH; Søreide, Odd; Ødegaard, Svein; Berstad, Arnold. 1995. Patients with symptomatic, uncomplicated gallstone disease exhibit findings similar to functional dyspepsia. Volume measurement using three-dimensional ultrasonography. Oral presentation.
  • Hausken, Trygve; Gilja, OH; Ødegaard, Svein; Berstad, Arnold. 1995. Effects of glyceryl trinitate on transpyloric flow of a soup meal.
  • Gilja, OH; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1994. Ultrasonography of the proximal stomach in patients with functional dyspepsia.
  • Gilja, OH; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1994. Patients with functional dyspepsia have impaired accomodation of the proximal stomach to a soup meal.
  • Hausken, Trygve; Gilja, OH; Ødegaard, Svein; Berstad, Arnold. 1994. Effects of glyceryl trinitate on transpyloric flow of a soup meal.
  • Hundal, Øyvind; Berstad, Arnold; Andersen, Knut-Jan. 1992. Absorbsjon av Vismut Subcitrat og Vismut Subnitrat.
  • Talstad, Ingebrigt; Nesthus, I.; Berstad, Arnold; Williams, K; Andersen, Knut-Jan; Fagerhol, Magne K. 1990. Does the Biochemical Pattern of Leukemic Cells Differ Between Types of Leukemias?
Abstract
  • Berstad, Arnold; Raa, Jan; Valeur, Jørgen. 2017. Functional food for functional disorders. Microbial Ecology in Health and Disease.
  • Valeur, Jørgen; Røseth, Arne; Knudsen, Torunn; Malmstrøm, Gunn Helen; Fiennes, Jennifer Twisleton; Midtvedt, Tore; Berstad, Arnold. 2016. Dietary FODMAP restriction alters faecal fermentation in patients with IBS. Neurogastroenterology and Motility. 25-25.
  • Undseth, Ragnhild Marie; Trøseid, Marius; Berstad, Arnold; Valeur, Jørgen. 2015. Markers of intestinal injury and endotoxemia in patients with irritable bowel syndrome. Neurogastroenterology and Motility. 105-105.
  • Sauar, Jostein; Valeur, Jørgen; Berstad, Arnold; Lundin, Knut E A; Engstrand, Lars; Farup, Per Grønaas. 2015. Det første nasjonale møtet om funksjonelle mage-tarm-lidelser (FGID) 18. mars 2015. NGF-nytt. 32-33.
  • Undseth, Ragnhild Marie; Jakobsdottir, Greta; Nyman, Margareta; Berstad, Arnold; Valeur, Jørgen. 2014. Low serum levels of short-chain fatty acids after lactulose ingestion may indicate impaired microbial fermentation in patients with irritable bowel syndrome. United European Gastroenterology journal. A556-A556.
  • Undseth, Ragnhild Marie; Berstad, Arnold; Valeur, Jørgen. 2013. FODMAP-intolerance in IBS: Visualization by Magnetic Resonance Imaging. United European Gastroenterology journal. A110-A110.
  • Berstad, Arnold; Undseth, Ragnhild M; Lind, Ragna; Valeur, Jørgen. 2012. Comorbidity in patients with perceived food hypersensitivity. Gut. A337.
  • Valeur, Jørgen; Morken, Mette Helvik; Norin, Elisabeth; Midtvedt, Tore; Berstad, Arnold. 2010. Unexplained, self-reported food hypersensitivity: A fermentation problem? Neurogastroenterology and Motility. 79-80.
  • Lied, Gülen Arsland; Vogelsang, Petra; Berstad, Arnold; Appel, Silke. 2010. Dendritic cell populations in patients with self-reported food hypersensitivity. Gut. A394.
  • Valeur, Jørgen; Lillestøl, Kristine; Morken, Mette Helvik; Norin, E; Midtvedt, T; Berstad, Arnold. 2009. Symptoms and rectal fermentation products in response to lactulose challenge in patients with irritable bowel syndrome. Neurogastroenterology and Motility. 83-83.
  • Lied, Gülen Arsland; Lillestøl, Kristine; Valeur, Jørgen; Berstad, Arnold. 2009. Potential role of B-cell activating factor in non-IgE-mediated hypersensitivity reactions to food. Gut. A116-A116.
  • Valeur, Jørgen; Morken, Mette Helvik; Nordin, Ellinor; Midtvedt, Tore; Berstad, Arnold. 2009. Irritable bowel syndrome - an enterometabolic disorder? Scandinavian Journal of Gastroenterology. 28-28.
  • Lillestøl, Kristine; Valeur, Jørgen; Helgeland, Lars Inge; Florvaag, Erik; Lied, Gülen Arsland; Lind, Ragna; Berstad, Arnold. 2009. Indications of `atopic bowel` in patients with irritable bowel syndrome (IBS). Neurogastroenterology and Motility. 7-7.
  • Lillestøl, Kristine; Helgeland, Lars Inge; Florvaag, Erik; Lied, Gülen Arsland; Lind, Ragna; Valeur, Jørgen; Berstad, Arnold. 2009. Indications of "atopic bowel" in patients with irritable bowel syndrome. Gut. A20-A20.
  • Valeur, Jørgen; Øines, Eliann; Morken, Mette Helvik; Lillestøl, Kristine; Lind, Ragna; Vaali, Kirsi Kaarina; Milde, Anne Marita; Holst, Jens Juul; Helle, Karen Blaauw; Berstad, Arnold. 2008. Neuroendocrine biomarkers of symptomatic carbohydrate malabsorption. Neurogastroenterology and Motility. 138-138.
  • Valeur, Jørgen; Lappalainen, Jani; Lin, Aung Htun; Kovanen, Petri; Berstad, Arnold; Eklund, Kari; Vaali, Kirsi Kaarina. 2008. Jejunal dysmotility in food allergy mouse model. Scandinavian Journal of Gastroenterology. 32-32.
  • Valeur, Jørgen; Lappalainen, Jani; Rita, Hannu; Lin, Aung Htun; Kovanen, Petri T.; Berstad, Arnold; Eklund, Kari K.; Vaali, Kirsi Kaarina. 2008. Jejunal dysmotility in a food allergy mouse model. Neurogastroenterology and Motility. 45-45.
  • Erichsen, Kari; Lied, Gülen Arsland; Olderøy, G; Hausken, Trygve; Berstad, Arnold. 2004. Calprotectin in faeces and gut lavage fluid; relationship to intestinal permeability and disease activity in IBD. Scandinavian Journal of Gastroenterology. 8-8.
  • Lind, Ragna; Lied, Gülen Arsland; Eriksen, Hege Randi; Florvaag, Erik; Berstad, Arnold. 2003. Subjective health complaints and quality of life in patients with self-reported adverse reactions to food. Scandinavian Journal of Gastroenterology, Supplement. 15-15.
  • Lied, Gülen Arsland; Bjørkkjær, Tormod; Brunborg, Linn Anne Bjelland; Valen, Merete; Brun, Johan G; Frøyland, Livar; Berstad, Arnold. 2003. Seal oil compared to soy oil in patients with inflammatory bowel disease. Gastroenterology. 67-67.
Academic literature review
  • Landfald, Bjarne; Valeur, Jørgen; Berstad, Arnold; Raa, Jan. 2017. Microbial trimethylamine-N-oxide as a disease marker: something fishy?
  • Berstad, Arnold; Raa, Jan; Midtvedt, Tore; Valeur, Jørgen. 2016. Probiotic lactic acid bacteria - the fledgling cuckoos of the gut?
  • Berstad, Arnold. 2015. Professor Johannes Myren. 628-629.
  • Berstad, Arnold; Raa, Jan; Valeur, Jørgen. 2015. Indole - the scent of a healthy "inner soil".
  • Berstad, Arnold; Raa, Jan; Valeur, Jørgen. 2014. Tryptophan: ‘essential’ for the pathogenesis of irritable bowel syndrome? 1493-1498.
  • Lied, Gülen Arsland; Lillestøl, Kristine; Lind, Ragna; Valeur, Jørgen; Morken, Mette Helvik; Vaali, Kirsi Kaarina; Gregersen, Kine; Florvaag, Erik; Tangen, Tone; Berstad, Arnold. 2011. Perceived food hypersensitivity: A review of 10 years of interdisciplinary research at a reference center. 1169-1178.
  • Berstad, Arnold; Valeur, Jørgen; Lillestøl, Kristine; Lind, Ragna; Morken, Mette Helvik; Gregersen, Kine; Lied, Gülen Arsland; Tangen, Tone; Florvaag, Erik. 2011. Pasienten tåler ikke mat - hva skal vi tro? 36-40.
  • Lied, Gülen Arsland; Berstad, Arnold. 2011. Functional and clinical aspects of the B-cell-activating factor (BAFF): a narrative review. 1-7.
  • Rønnevik, Alexander K.; Valeur, Jørgen; Berstad, Arnold. 2010. Kan tarmbakteriene gjøre oss fete? 12-14-16-17.
  • Hystad, Hilde Tang; Valeur, Jørgen; Berstad, Arnold. 2010. Bør personer med irritabel tarm spise mindre tungt fordøyelige karbohydrater? 12-17.
  • Gilja, Odd Helge; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 2005. Ultrasonography and three-dimensional methods of the upper gastrointestinal tract. 277-282.
  • Berstad, Arnold; Lied, Gülen Arsland; Florvaag, Erik; Ødegaard, Svein; Elsayed, Said. 1999. Intestinal allergi. 10-12.

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