Vitenskapelig foredrag

• El-Salhy, Magdy; Valeur, Jørgen; Brønstad, Ingeborg et al. (2025). The possible role of butyric acid in long-term symptom relief in irritable bowel syndrome patients following fecal microbiota transplantation. (ekstern lenke)
• El-Salhy, Magdy; Valeur, Jørgen; Brønstad, Ingeborg et al. (2025). Kortkjedede fettsyrer etter FMT. (ekstern lenke)
• Teige, Eirik Persson; Hillestad, Eline Margrete Randulff; Berentsen, Birgitte et al. (2021). Kort- og langtidseffekten av lav FODMAP-dietten på symptomer og kortkjedede fettsyrer hos pasienter med irritabel tarmsyndrom. (ekstern lenke)
• El-Salhy, Magdy; Kristoffersen, Anja Bråthen; Valeur, Jørgen et al. (2020). Long-term effects of faecal microbiota transplantation (FMT) in patients with irritable bowel syndrome. (ekstern lenke)
• Havre, Roald Flesland; Hatlebakk, Jan Gunnar; Gilja, Odd Helge (2020). Chromoendoscopy with Iodine-Potassium iodine solution in eosinophilic esophagitis. (ekstern lenke)
• Teige, Erica Persson; Berentsen, Birgitte; Brønstad, Ingeborg et al. (2020). Short and extended effects of a low FODMAP diet on symptoms and short-chained fatty acids in patients with irritable bowel syndrome. (ekstern lenke)
• Teig, Erica; Berentsen, Birgitte; Hausken, Trygve et al. (2020). Kort- og langtidseffekten av lavFODMAP-diett på symptomer og mikrobiota hos pasienter med IBS . (ekstern lenke)
• Hillestad, Eline M R; Lied, Gülen Arslan; Steinsvik, Elisabeth Kjelsvik et al. (2020). Kvalitetsevaluering av tverrfaglig IBS-poliklinikk . (ekstern lenke)
• Berentsen, Birgitte; Kristianslund, Camilla; Lied, Gülen Arslan et al. (2019). Mage-tarmskolen – tverrfaglig internetbehandling ved Irritabel tarmsyndrom . (ekstern lenke)
• Pham, Khanh Do-Cong; Havre, Roald Flesland; Hatlebakk, Jan Gunnar (2019). CHROMOENDOSCOPY WITH IODINE-POTASSIUM IODINE SOLUTION IN EOSINOPHILIC ESOPHAGITIS. (ekstern lenke)
• Mazzawi, Tarek; Hausken, Trygve; Hov, Johannes Espolin Roksund et al. (2019). Effect of faecal microbiota transplantation on gut microenvironment and symptoms in patients with irritable bowel syndrome. (ekstern lenke)
• Pham, Khanh Do-Cong; Havre, Roald Flesland; Hofstad, Erlend Fagertun et al. (2017). Navigated Retrograde Endoscopic Myotomy (REM) for the Treatment of Therapy-Resistant Achalasia. (ekstern lenke)
• Hustoft, Tonje; Hausken, Trygve; Ystad, Synne Otteraaen et al. (2016). Low FODMAP diet alters symptoms, microbiota, short-chain fatty acids and cytokine profiles in patients with IBS: A randomized controlled trial. (ekstern lenke)
• Hustoft, Tonje; Hausken, Trygve; Ystad, Synne Otteraaen et al. (2016). Low FODMAP diet alters symptoms, microbiota, short-chain fatty acids and cytokine profiles in patients with IBS: A randomized controlled trial. (ekstern lenke)
• Pham, Khanh Do-Cong; Viste, Asgaut; Dicko, Aly et al. (2015). Per Oral Endoskopisk Pyloromyotomi (POP) for primær pylorusstensose. (ekstern lenke)
• Pham, Khanh Do-Cong; Viste, Asgaut; Hatlebakk, Jan Gunnar et al. (2014). Per Oral Endoskpoisk Myotmi (POEM) for behandling av akalasi. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Krarup, Anne Lund; Lelic, Dina et al. (2013). Sentral sensorisk prosessering av smertestimulering i øsofagus hjå pasientar med ikkje-kardiale brystsmerter og frisk personar.. (ekstern lenke)
• Pham, Khanh Do-Cong; Viste, Asgaut; Hatlebakk, Jan Gunnar (2013). Endoskopisk behandling av tidlig spiserøreskreft. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Krarup, Anne Lund; Lelic, Dina et al. (2012). No differences in central sensory (pain) processing to oesophageal pain between patients with non-cardiac chest pain and healthy subjects. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2012). No differences in central sensory (pain) processing to oesophageal pain between patients with non-cardiac chest pain and healthy subjects.. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2010). Pasientar med funksjonelle brystsmerter har ein meir markert muskeltonus i øsofagus under bag (ballong) ekspansjon.. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2008). Distension-induced pain in the oesophagus correlates with wall stress and strain but not with mucosal perfusion in healthy volunteers. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2007). Distensjonsutløyst smerte i øsofagus hjå friske korrelerer med vegg-stress og -strain, men ikkje med mucosa perfusjon. (ekstern lenke)
• Carlsson, Rolf; Johnsson, Folke; Hatlebakk, Jan Gunnar et al. (2000). Evaluation of a symptomatic score for the diagnosis of GERD. (ekstern lenke)
• Tefera, Solomon; Gilja, Odd Helge; Olafsdottir, Edda Jonina et al. (2000). Intragastric maldistribution in patients with reflux oesophagitis studied by an accurate 3D ultrasound system. (ekstern lenke)
• Wilhelmsen, Ingvard; Hatlebakk, Jan Gunnar; Olafsson, Snorri et al. (1998). On demand therapy of reflux oesophagitis: a study of symptoms, patient satisfaction and quality of life. (ekstern lenke)
• Hatlebakk, Jan Gunnar (1996). Utredning av ikke-kardiale brystsmerter. (ekstern lenke)
• Hatlebakk, Jan Gunnar (1996). Transient LES-relaksasjon ved reflukssykdom. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Nesje, Lars B; Hausken, Trygve et al. (1994). Lansoprazole and amoxicillin oral suspension in the treatment of peptic ulcer disease. (ekstern lenke)
• Berstad, A.; Weberg, R.; Wilhelmsen, Ingvard et al. (1994). Follow-up on 227 Patients with Peptic Ulcer Disease One Year after Eradication of Helicobacter Pylori. (ekstern lenke)
• Berstad, A.; Hatlebakk, Jan Gunnar (1993). Lansoprazole in the treatment of reflux oesophagitis: A survey of clinical studies. (ekstern lenke)

Vitenskapelig artikkel

• Jacobsen, Birgitte Berentsen; Thuen, Camilla; Hillestad, Eline Margrete Randulff et al. (2025). The Effects of Digital eHealth Versus Onsite 2-Day Group-Based Education in 255 Patients With Irritable Bowel Syndrome: Cohort Study. (ekstern lenke)
• Abudujain, Nasser M.; Batais, Mohammed A.; Muqresh, Mohamad Ayham et al. (2024). Translation, cultural adaptation, and evaluation of the psychometric properties of the Arabic Gastroesophageal Reflux Disease Questionnaire (Ar-GerdQ). (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan Gunnar (2024). Factors Underlying the Difference in Response to Fecal Microbiota Transplantation Between IBS Patients with Severe and Moderate Symptoms. (ekstern lenke)
• El-Salhy, Magdhy; Gilja, Odd Helge; Hatlebakk, Jan Gunnar (2024). Factors underlying the long-term efficacy of faecal microbiota transplantation for patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdhy; Gilja, Odd Helge; Hatlebakk, Jan Gunnar (2023). Increasing the transplant dose and repeating faecal microbiota transplantation results in the responses of male patients with IBS reaching those of females. (ekstern lenke)
• El-Salhy, Magdhy; Gilja, Odd Helge; Hatlebakk, Jan Gunnar (2023). Factors affecting the outcome of fecal microbiota transplantation for patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Winkel, Renate; Casén, Christina et al. (2022). Efficacy of fecal microbiota transplantation for patients with irritable bowel syndrome at 3 years after transplantation. (ekstern lenke)
• Pham, Khanh Do-Cong; Lauritzen, Sigurd; Tjora, Erling et al. (2022). The outcome of primary per oral endoscopic myotomy (POEM) for treatment of achalasia: Norwegian single-center experience with long-term follow-up. (ekstern lenke)
• El-Salhy, Magdy; Mazzawi, Tarek; Hausken, Trygve et al. (2022). The fecal microbiota transplantation response differs between patients with severe and moderate irritable bowel symptoms. (ekstern lenke)
• Mazzawi, Tarek; Hausken, Trygve; Refsnes, Per Førde et al. (2022). The Effect of Anaerobically Cultivated Human Intestinal Microbiota Compared to Fecal Microbiota Transplantation on Gut Microbiota Profile and Symptoms of Irritable Bowel Syndrome, a Double-Blind Placebo-Controlled Study. (ekstern lenke)
• El-Salhy, Magdy; Mazzawi, Tarek; Hausken, Trygve et al. (2022). Irritable bowel syndrome patients who are not likely to respond to fecal microbiota transplantation. (ekstern lenke)
• Steinsvik, Elisabeth Kjelsvik; Hatlebakk, Jan Gunnar; Hausken, Trygve et al. (2021). Ultrasound imaging for assessing functions of the GI tract. (ekstern lenke)
• Bekkelund, Mattis; Sangnes, Dag André; Søfteland, Eirik Wigtil et al. (2021). Gastroparesis symptoms associated with intestinal hypomotility: An explorative study using wireless motility capsule. (ekstern lenke)
• El-Salhy, Magdy; Bråthen Kristoffersen, Anja; Valeur, Jørgen et al. (2021). Long-term effects of fecal microbiota transplantation (FMT) in patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Casén, Christina; Valeur, Jørgen et al. (2021). Responses to faecal microbiota transplantation in female and male patients with irritable bowel syndrome. (ekstern lenke)
• Jensen, Caroline; Dale, Hanna Fjeldheim; Hausken, Trygve et al. (2020). The effect of supplementation with low doses of a cod protein hydrolysate on satiety hormones and inflammatory biomarkers in adults with metabolic syndrome: A randomized, double-blind study. (ekstern lenke)
• Jensen, Caroline; Dale, Hanna Fjeldheim; Hausken, Trygve et al. (2020). Supplementation with low doses of a cod protein hydrolysate on glucose regulation and lipid metabolism in adults with metabolic syndrome: A randomized, double-blind study. (ekstern lenke)
• El-Salhy, Magdy; Hausken, Trygve; Hatlebakk, Jan Gunnar (2020). Density of Musashi‑1‑positive stem cells in the stomach of patients with irritable bowel syndrome. (ekstern lenke)
• Berentsen, Birgitte; Nagaraja, Bharath Halandur; Teige, Erica Persson et al. (2020). Study protocol of the Bergen brain-gut-microbiota-axis study: A prospective case-report characterization and dietary intervention study to evaluate the effects of microbiota alterations on cognition and anatomical and functional brain connectivity in patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Valeur, Jørgen; Hausken, Trygve et al. (2020). Changes in fecal short-chain fatty acids following fecal microbiota transplantation in patients with irritable bowel syndrome. (ekstern lenke)
• Dale, Hanna Fjeldheim; Jensen, Caroline; Hausken, Trygve et al. (2019). Acute effect of a cod protein hydrolysate on postprandial acylated ghrelin concentration and sensations associated with appetite in healthy subjects: a double-blind crossover trial. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan Gunnar; Hausken, Trygve (2019). Diet in Irritable Bowel Syndrome (IBS): Interaction with Gut Microbiota and Gut Hormones. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan Gunnar; Gilja, Odd Helge et al. (2019). Efficacy of faecal microbiota transplantation for patients with irritable bowel syndrome in a randomised, double-blind, placebo-controlled study. (ekstern lenke)
• Pauwels, Ans; Boecxstaens, Veerle; Andrews, Christopher N. et al. (2019). How to select patients for antireflux surgery? The ICARUS guidelines (international consensus regarding preoperative examinations and clinical characteristics assessment to select adult patients for antireflux surgery). (ekstern lenke)
• Mazzawi, Tarek; Hausken, Trygve; Hov, Johannes Espolin Roksund et al. (2019). Clinical response to fecal microbiota transplantation in patients with diarrhea-predominant irritable bowel syndrome is associated with normalization of fecal microbiota composition and short-chain fatty acid levels. (ekstern lenke)
• El-Salhy, Magdy; Gilja, Odd Helge; Hatlebakk, Jan Gunnar (2019). Overlapping of irritable bowel syndrome with erosive esophagitis and the performance of Rome criteria in diagnosing IBS in a clinical setting. (ekstern lenke)
• Dale, Hanna Fjeldheim; Jensen, Caroline; Hausken, Trygve et al. (2019). Effects of a Cod Protein Hydrolysate Supplement on Symptoms, Gut Integrity Markers and Fecal Fermentation in Patients with Irritable Bowel Syndrome. (ekstern lenke)
• El-Salhy, Magdy; Hausken, Trygve; Hatlebakk, Jan Gunnar (2019). Increasing the Dose and/or Repeating Faecal Microbiota Transplantation (FMT) Increases the Response in Patients with Irritable Bowel Syndrome (IBS). (ekstern lenke)
• Mazzawi, Tarek; Bartsch, Emily; Benammi, Sara et al. (2019). Gastric emptying of low- and high-caloric liquid meals measured using ultrasonography in healthy volunteers. (ekstern lenke)
• Katle, Elin-johanne; Hatlebakk, Jan Gunnar; Omdal, Roald et al. (2019). Nasal and salivary pepsin as a biomarker for gastro-esophageal reflux in chronic rhinosinusitis. (ekstern lenke)
• Jensen, Caroline; Dale, Hanna Fjeldheim; Hausken, Trygve et al. (2019). Supplementation with cod protein hydrolysate in older adults: A dose range cross-over study. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan Gunnar; Gilja, Odd Helge et al. (2019). Efficacy of faecal microbiota transplantation for patients with irritable bowel syndrome in a randomised, double-blind, placebo-controlled study . (ekstern lenke)
• Dale, Hanna Fjeldheim; Hatlebakk, Jan Gunnar; Hovdenak, Nils et al. (2018). The effect of a controlled gluten challenge in a group of patients with suspected non-coeliac gluten sensitivity: A randomized, double-blind placebo-controlled challenge. (ekstern lenke)
• Dale, Hanna Fjeldheim; Jensen, Caroline; Hausken, Trygve et al. (2018). Effect of a cod protein hydrolysate on postprandial glucose metabolism in healthy subjects: A double-blind cross-over trial. (ekstern lenke)
• Mazzawi, Tarek; Lied, Gülen Arslan; Sangnes, Dag André et al. (2018). The kinetics of gut microbial community composition in patients with irritable bowel syndrome following fecal microbiota transplantation. (ekstern lenke)
• Pham, Khanh Do-Cong; Havre, Roald Flesland; Langø, Thomas et al. (2018). Navigated retrograde endoscopic myotomy (REM) for the treatment of therapy-resistant achalasia. (ekstern lenke)
• El-Salhy, Magdy; Mazzawi, Tarek; Hausken, Trygve et al. (2017). Interaction between diet and gastrointestinal endocrine cells. (ekstern lenke)
• El-Salhy, Magdy; Patcharatrakul, Tanisa; Hatlebakk, Jan Gunnar et al. (2017). Enteroendocrine, Musashi 1 and neurogenin 3 cells in the large intestine of Thai and Norwegian patients with irritable bowel syndrome. (ekstern lenke)
• Hustoft, Tonje Nesvik; Hausken, Trygve; Ystad, Synne Otteraaen et al. (2017). Effects of varying dietary content of fermentable short-chain carbohydrates on symptoms, fecal microenvironment, and cytokine profiles in patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Patcharatrakul, Tanisa; Hatlebakk, Jan Gunnar et al. (2017). Chromogranin A cell density in the large intestine of Asian and European patients with irritable bowel syndrome. (ekstern lenke)
• Katle, Elin-johanne; Hatlebakk, Jan Gunnar; Grimstad, Tore et al. (2017). Gastro-oesophageal reflux in patients with chronic rhino-sinusitis investigated with multichannel impedance - pH monitoring. (ekstern lenke)
• El-Salhy, Magdy; Umezawa, Kazuo; Hatlebakk, Jan Gunnar et al. (2017). Abnormal differentiation of stem cells into enteroendocrine cells in rats with DSS-induced colitis. (ekstern lenke)
• Storlid, Eline Lundekvam; Hausken, Trygve; Lied, Gülen Arslan et al. (2017). Gastric accommodation in healthy subjects studied by ultrasound, manometry, and impedancemetry. (ekstern lenke)
• Mastracci, Luca; Fiocca, Roberto; Engström, C et al. (2017). The dynamics of the oesophageal squamous epithelium `normalisation´ process in patients with gastro-oesophageal reflux disease treated with long-term acid suppression or anti-reflux surgery. (ekstern lenke)
• Emken, Birgitte-Elise G; Lundell, Lars R; Wallin, Lene et al. (2017). Effects of omeprazole or anti-reflux surgery on lower oesophageal sphincter characteristics and oesophageal acid exposure over 10 years. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan Gunnar; Gilja, Odd Helge (2016). Abnormalities in endocrine and immune cells are correlated in dextran‑sulfate‑sodium‑induced colitis in rats. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Zerbib, Frank; Bruley des Varannes, Stanislas et al. (2016). Gastroesophageal Acid Reflux Control 5 Years After Antireflux Surgery, Compared With Long-term Esomeprazole Therapy. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan Gunnar (2016). Changes in enteroendocrine and immune cells following colitis induction by TNBS in rats. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan G; Hausken, Trygve (2015). Reduction in duodenal endocrine cells in irritable bowel syndrome is associated with stem cell abnormalities. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan G; Gilja, Odd Helge et al. (2015). Densities of rectal peptide YY and somatostatin cells as biomarkers for the diagnosis of irritable bowel syndrome. (ekstern lenke)
• Attwood, Stephen E.; Ell, Christian; Galmiche, Jean-Paul et al. (2015). Long-term safety of proton pump inhibitor therapy assessed under controlled, randomised clinical trial conditions: Data from the SOPRAN and LOTUS studies. (ekstern lenke)
• Pham, Khanh Do-Cong; Viste, Asgaut; Dicko, Aly et al. (2015). Peroral endoscopic pyloromyotomy for primary pyloric stenosis. (ekstern lenke)
• Lundell, Lars; Hatlebakk, Jan G; Galmiche, Jean-Paul et al. (2015). Long-term effect on symptoms and quality of life of maintenance therapy with esomeprazole 20 mg daily: A post hoc analysis of the LOTUS trial. (ekstern lenke)
• El-Salhy, Magdy; Gilja, Odd Helge; Gundersen, Doris Irene et al. (2014). Endocrine cells in the ileum of patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Umezawa, Kazuo; Gilja, Odd Helge et al. (2014). Amelioration of Severe TNBS Induced Colitis by Novel AP-1 and NF-κB Inhibitors in Rats. (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Hatlebakk, Jan G et al. (2014). Abnormal rectal endocrine cells in patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Gilja, Odd Helge; Gundersen, Doris Irene et al. (2014). Duodenal Chromogranin A Cell Density as a Biomarker for the Diagnosis of Irritable Bowel Syndrome. (ekstern lenke)
• Frøkjær, Jens Brøndum; Boldea, Andra Sorina; Hoff, Dag Arne Lihaug et al. (2014). Do patients with functional chest pain have neuroplastic reorganization of the pain matrix? A diffusion tensor imaging study. (ekstern lenke)
• El-Salhy, Magdy; Gilja, Odd Helge; Hatlebakk, Jan G et al. (2014). Stomach antral endocrine cells in patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Wendelbo, Ingvild Haukaas; Gundersen, Doris Irene et al. (2013). Colonoscopy with mucosal biopsies in young rats: A model for experimental gastroenterology. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Krarup, Anne Lund; Lelic, Dina et al. (2013). Central response to painful electrical esophageal stimulation in well-defined patients suffering from functional chest pain. (ekstern lenke)
• El-Salhy, Magdy; Mazzawi, Tarek; Gundersen, Doris Irene et al. (2013). Changes in the symptom pattern and the densities of large-intestinal endocrine cells following Campylobacter infection in irritable bowel syndrome: a case report. (ekstern lenke)
• Jonasson, Christian; Hatlebakk, Jan G; Lundell, Lars R et al. (2013). Association between adherence to concomitant proton pump inhibitor therapy in current NSAID users and upper gastrointestinal complications. (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Hatlebakk, Jan G et al. (2013). Low‑grade inflammation in the rectum of patients with sporadic irritable bowel syndrome. (ekstern lenke)
• Jonasson, Christian; Tvete, Ingunn Fride; Hatlebakk, Jan G (2013). Patterns of proton pump inhibitor utilization in gastroesophageal reflux disease and the effect of restrictions on reimbursement: a nationwide prescription database study. (ekstern lenke)
• Lind, Ragna Anne; Berstad, Arnold; Hatlebakk, Jan G et al. (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. (ekstern lenke)
• Jonasson, Christian; Wernersson, Börje; Hoff, Dag Arne Lihaug et al. (2013). Validation of the GerdQ questionnaire for the diagnosis of gastro-oesophageal reflux disease. (ekstern lenke)
• El-Salhy, Magdy; Wendelbo, Ingvild Haukaas; Gundersen, Doris Irene et al. (2013). Evaluation of the usefulness of colonoscopy with mucosal biopsies in the follow-up of TNBS-induced colitis in rats. (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Østgaard, Hege et al. (2012). Low Densities of Serotonin and Peptide YY Cells in the Colon of Patients with Irritable Bowel Syndrome. (ekstern lenke)
• El-Salhy, Magdy; Østgaard, Hege; Gundersen, Doris Irene et al. (2012). The role of diet in the pathogenesis and management of irritable bowel syndrome (Review). (ekstern lenke)
• El-Salhy, Magdy; Seim, Inge; Chopin, Lisa et al. (2012). Irritable bowel syndrome: the role of gut neuroendocrine peptides. (ekstern lenke)
• Fiocca, Roberto; Mastracci, Luca; Attwood, Stephen E. A. et al. (2012). Gastric exocrine and endocrine cell morphology under prolonged acid inhibition therapy: results of a 5-year follow-up in the LOTUS trial. (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Hatlebakk, Jan G et al. (2012). Chromogranin A cell density as a diagnostic marker for lymphocytic colitis. (ekstern lenke)
• Ponce, Julio; Garrigues, Vicente; Agréus, Lars et al. (2012). Structured management strategy based on the Gastro-oesophageal Reflux Disease (GERD) Questionnaire (GerdQ) vs. usual primary care for GERD: pooled analysis of five cluster-randomised European studies. (ekstern lenke)
• Jonasson, Christian; Moum, Bjørn; Bang, Christen et al. (2012). Randomised clinical trial: a comparison between a GerdQ-based algorithm and an endoscopy-based approach for the diagnosis and initial treatment of GERD. (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Hatlebakk, Jan G et al. (2012). High densities of serotonin and peptide YY cells in the colon of patients with lymphocytic colitis. (ekstern lenke)
• Jonasson, Christian; Moum, Bjørn; Bang, Christen Joachim et al. (2012). Randomised clinical trial: a comparison between a GerdQ‐based algorithm and an endoscopy‐based approach for the diagnosis and initial treatment of GERD. (ekstern lenke)
• Ponce, Julio; Garrigues, Vicente; Agréus, Lars et al. (2011). Structured management strategy versus usual care for gastroesophageal reflux disease: rationale for pooled anlysis of five European cluster-randomized studies. (ekstern lenke)
• Boeckxstaens, Guy E; Beaumont, Hanneke; Hatlebakk, Jan G et al. (2011). A novel reflux inhibitor lesogaberan (AZD3355) as add-on treatment in patients with GORD with persistent reflux symptoms despite proton pump inhibitor therapy: a randomised placebo-controlled trial. (ekstern lenke)
• Galmiche, Jean-Paul; Hatlebakk, Jan G; Attwood, Stephen E. A. et al. (2011). Laparoscopic Antireflux Surgery vs Esomeprazole Treatment for Chronic GERD The LOTUS Randomized Clinical Trial. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2010). Sensation evoked by esophageal distension in functional chest pain patients depends on mechanical stress rather than on ischemia. (ekstern lenke)
• Hatlebakk, Jan Gunnar (2010). Endoscopy in gastro-oesophageal reflux disease. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2010). Mechanosensation and Mucosal Blood Perfusion in the Esophagus of Healthy Volunteers Studied with a Multimodal Device Incorporating Laser Doppler Flowmetry and Endosonography. (ekstern lenke)
• Fiocca, Roberto; Mastracci, Luca; Attwood, Stephen E. A. et al. (2010). Long-Term Outcome of Microscopic Esophagitis in Chronic GERD Patients Treated With Esomeprazole or Laparoscopic Antireflux Surgery in the LOTUS Trial. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Hatlebakk, Jan Gunnar (2009). Mucosal blood flow measurements using laser Doppler perfusion monitoring. (ekstern lenke)
• Gisbert, Javier P.; Cooper, Alun; Karagiannis, Dimitrios et al. (2009). Management of gastro-oesophageal reflux disease in primary care: a European observational study. (ekstern lenke)
• Lundell, Lars; Miettinen, Pekka; Myrvold, Helge Elliot et al. (2009). Comparison of outcomes twelve years after antireflux surgery or omeprazole maintenance therapy for reflux esophagitis. (ekstern lenke)
• Gisbert, Javier P.; Cooper, Alun; Karagiannis, Dimitrios et al. (2009). Impact of gastroesophageal reflux disease on work absenteeism, presenteeism and productivity in daily life: a European observational study. (ekstern lenke)
• Gisbert, Javier P.; Cooper, Alun; Karagiannis, Dimitrios et al. (2009). Impact of gastroesophageal reflux disease on patients' daily lives: a European observational study in the primary care setting. (ekstern lenke)
• Lundell, Lars; Attwood, Stephen E. A. ; Ell, Christian et al. (2008). Comparing laparoscopic antireflux surgery with esomeprazole in the management of patients with chronic gastro-oesophageal reflux disease: a 3-year interim analysis of the LOTUS trial. (ekstern lenke)
• Attwood, Stephen E. A. ; Lundell, Lars; Ell, Christian et al. (2008). Standardization of surgical technique in antireflux surgery: The LOTUS trial experience. (ekstern lenke)
• Dent, John; Kahrilas, Peter J.; Hatlebakk, Jan Gunnar et al. (2008). Center for drug evaluation and research. Clinical white paper for the CDER-PHRMA-AASLD conference on drug-induced liver disease: A national and global problem. (ekstern lenke)
• Gilja, Odd Helge; Hatlebakk, Jan Gunnar; Ødegaard, Svein et al. (2007). Advanced imaging and visualization in gastrointestinal disorders. (ekstern lenke)
• Coron, Emmanuel; Hatlebakk, Jan Gunnar; Galmiche, Jean-Paul (2007). Medical therapy of gastroesophageal reflux disease. (ekstern lenke)
• Piche, Thierry; Hatlebakk, Jan Gunnar (2006). Dysphagia in the course of gastro-oesophageal reflux before surgery. (ekstern lenke)
• Coron, Emmanuel; Hatlebakk, Jan Gunnar; Galmiche, J.P. (2006). Novel developments in non-erosive and erosive gastroesophageal reflux disease. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2006). A multimodal laser Doppler and endosonographic distension device for studying mechanosensation and mucosal blood flow in the oesophagus. (ekstern lenke)
• Granås, Anne Gerd; Larsen, Rønnaug; Haug, Kjell et al. (2005). Apotekpersonalets egenvurdering av kompetanse og faglig selvtillit. (ekstern lenke)
• Fockens, P.; Bruno, M.J.; Gabbrielli, A. et al. (2004). Endoscopic augmentation of the lower esophageal sphincter for the treatment of gastroesophageal reflux disease: Multicenter study of the gatekeeper reflux repair system. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Hatlebakk, M.V. (2004). Diagnostic approach to suspected irritable bowel syndrome. (ekstern lenke)
• Hatlebakk, Jan Gunnar (2004). Behandling av gastroøsofageal refluks hos gravide. (ekstern lenke)
• Dorlöchter, Ludger; Kolsrud, Espen; Olafsdottir, Edda Jonina et al. (2000). Oesophagusstriktur som komplikasjon til gastrøsofageal refluks hos barn. (ekstern lenke)
• Katz, Philip O.; Hatlebakk, Jan Gunnar; Castell, Donald O. (2000). Gastric acidity and acid breakthrough on omeprazole 20mg b.i.d. or lansoprazole 30mg b.i.d. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Camacho-Lobato, Luciana; Katz, Philip O. et al. (2000). Proton pump inhibitors: better before breakfast than without breakfast. (ekstern lenke)
• Lundell, Lars R.; Miettinen, Pekka; Myrvold, Helge E. et al. (2000). Long-term management of gastro-oesophageal reflux disease with omeprazole or open anti-reflux surgery: results of a prospective, randomized clinical trial. (ekstern lenke)
• Tefera, Solomon; Hatlebakk, Jan Gunnar; Berstad, Arnold (1999). Effect of Helicobacter pylori eradication on gastro-oesophageal reflux. (ekstern lenke)
• Vela, M; Lobato-Camacho, L; Hatlebakk, Jan Gunnar et al. (1999). Effect of Omeprazole (PPI) on Ratio of Acid to Nonacid Gastroesophageal Reflux. Studies Using Simultaneous Intraesophageal Impedance and pH Measurement. (ekstern lenke)
• Fouad, YM; Katz, Phil O; Hatlebakk, Jan Gunnar et al. (1999). Ineffective esophageal motility: the most common motility abnormality in patients with GERD-associated respiratory symptoms. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Katz, Phil O; Castell, Donald O (1999). Medical therapy: Management of the refractory patient. (ekstern lenke)
• Lundell, L; Miettinen, P; Liedman, B et al. (1999). Lack of effect of acid suppression on gastric atrophy. Nordic GERD Study Group. (ekstern lenke)
• Tefera, Solomon; Hatlebakk, Jan Gunnar; Berstad, Arnold (1999). The effect of eradication of H.pylori on gastro-oesophageal reflux. (ekstern lenke)
• Wilhelmsen, Ingvard; Hatlebakk, Jan Gunnar; Olafsson, Snorri et al. (1999). On demand therapy of reflux oesophagitis - a prospective study of symptoms, patient satisfaction and quality of life. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Hyggen, A; Madsen, P et al. (1999). Therapy for heartburn in primary care patients - an 8 weeks randomized double-blind study of omeprazole versus cisapride and placebo. (ekstern lenke)
• Olafsson, Snorri; Berstad, Arnold; Bang, CJ et al. (1999). Spiromycin is comparable to oxytetracycline in eradicating H. pylori when given with ranititine bismuth citrate and metronidazole. (ekstern lenke)
• Tefera, Solomon; Gilja, Odd Helge; Hatlebakk, Jan Gunnar et al. (1999). Intragastric distribution and volume estimation of a liquid meal in patients with gastro-oesophageal reflux disease assessed by three-dimensional ultrasonography. (ekstern lenke)
• Berstad, Arnold; Hatlebakk, Jan Gunnar; Giercksky, K-E (1998). Barretts øsofagus. Et økende problem. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Castell, Donald O. (1998). Obesity and gastroesophageal reflux. (ekstern lenke)
• Øvrebø, Kjell K; Hatlebakk, Jan Gunnar; Viste, Asgaut et al. (1998). Gastroesophageal reflux in morbid obese patients treated with gastric banding or vertical banded gastroplasty. (ekstern lenke)
• Carlsson, Rolf; Watts, R; Riley, Stuart et al. (1998). Gastro-oesophageal reflux disease in primary care - an international study of different treatment strategies with omeprazole. (ekstern lenke)
• Lundell, Lars; Dalenbäck, J; Hatlebakk, Jan Gunnar et al. (1998). Outcome of open anti-reflux surgery as assessed in a Nordic multicentre, prospective clinical trial. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Castell, Donald O. (1998). Dysphagia in the elderly: Diagnostic approach and clinical management. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Ødegaard, Svein (1998). Endoscopic ultrasound - a new look at achalasia?. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Castell, JA; Paoletti, Vera et al. (1998). Dilatation therapy for dysphagia in patients with upper esophageal sphincter dysfunction - manometric and symptomatic response. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Berstad, Arnold (1997). Lansoprazole 15 and 30 mg daily in maintenance therapy of reflux oesophagitis. (ekstern lenke)
• Berstad, Arnold; Hatlebakk, Jan Gunnar; Maartmann-Moe, H. et al. (1997). Helicobacter pylori gastritis and epithelial cell proliferation in patients with reflux oesophagitis after treatment with lansoprazole. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Berstad, Arnold (1997). Prognostic factors for relapse of reflux oesophagitis and symptoms during 12 months of therapy with lansoprazole. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Berstad, Arnold (1997). Endoscopic grading of reflux oesophagitis: what observations correlate with gastro-oesophagal reflux?. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Johnsson, F.; Vilien, M. et al. (1997). The effect of cisapride in maintaining symptomatic remission in patients with gastro-oesophageal reflux disease. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Berstad, A. (1996). Lansoprazole 15 and 30 mg daily in maintenanxe therapy of reflux oesophagitis. (ekstern lenke)
• Tefera, S.; Berstad, Arnold; Bang, J. C. et al. (1996). Bismuth-based combination therapy for Heliobacter pylori-associated peptic ulcer disease (metronidazole for eradication, ranitidine for pain). (ekstern lenke)
• Hatlebakk, Jan Gunnar; Berstad, A. (1996). Gastro-oesophageal reflux during 3 months of therapy with ranitidine in reflux oesophagitis. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Berstad, A. (1996). Pharmacokinetic optimisation in the treatment of gastrooesophageal reflux disease. (ekstern lenke)
• Berstad, Arnold; Berstad, Ketil; Wilhelmsen, Ingvard et al. (1995). Spiramycin in triple therapy of Helicobacter pylori-associated peptic ulcer disease. An open pilot study with 12-month follow-up. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Berstad, Arnold (1994). Prokinetica ved reflukssykdom. Virkningsmekanismer og klinisk effekt. (ekstern lenke)
• Berstad, A.; Berstad, K.; Hatlebakk, Jan Gunnar et al. (1994). Ti dagers trippelkur for Helicobacter pylori-infeksjon og magesår: Status fire uker og ett år etter. (ekstern lenke)
• Hatlebakk, Jan Gunnar (1994). Konferanserapport Digestive diseases WEEK 1994. (ekstern lenke)
• Berstad, A.; Berstad, K.; Hatlebakk, Jan Gunnar et al. (1994). Ti dagers trippelkur for Helicobacter pylori-infeksjon og magesår: Status fire uker og ett år etter. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Berstad, Arnold; Carling, Lasse et al. (1993). Lansoprazole versus omeprazole in short-term treatment of reflux oesophagitis. Results of a Scandinavian multicentre trial. (ekstern lenke)

Sammendrag/abstract

• El-Salhy, Magdy; Valeur, Jørgen; Brønstad, Ingeborg et al. (2024). Faecal butyric acid levels are increased at 2 and 3 years after faecal microbiota transplantation (FMT) in patients with irritable bowel syndrome (IBS). (ekstern lenke)
• El-Salhy, Magdy; Casén, Christina; Valeur, Jørgen et al. (2021). Responses to faecal microbiota transplantation in female and male patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Kristoffersen, Anja Bråthen; Valeur, Jørgen et al. (2020). Long-term effects of faecal microbiota transplantation (FMT) in patients with irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Valeur, Jørgen; Hausken, Trygve et al. (2020). Changes in fecal short-chain fatty acids (SCFA) following fecal microbiota transplantation (FMT) in patients with irritable bowel syndrome (IBS). (ekstern lenke)
• Berentsen, Birgitte; Thuen, Camilla; Andersen, Mari Liltvedt et al. (2018). Interdisciplinary self- help intervention for IBS - eHealth and patient education. (ekstern lenke)
• Mazzawi, Tarek; Lied, Gülen Arslan; Hov, Johannes Espolin Roksund et al. (2018). Effects of faecal microbiota transplantation on gut microenvironment and symptoms in patients with irritable bowel syndrome. (ekstern lenke)
• Dale, Hanna Fjeldheim; Hatlebakk, Jan Gunnar; Hovdenak, Nils et al. (2017). The effect of a controlled gluten challenge in patients with suspected non-coeliac gluten sensitivity: A randomized, double-blind placebo-controlled challenge. (ekstern lenke)
• Hatlebakk, Jan Gunnar; Hovdenak, Nils; Ystad, Synne Otteraaen et al. (2017). Gluten causes symptom relapse in a small group of patients with suspected non-celiac gluten sensitivity: A randomized, double-blind placebo controlled challenge. (ekstern lenke)
• Hausken, Trygve; Mazzawi, Tarek; Lied, Gülen Arslan et al. (2017). Effect of faecal microbiota transplantation on the symptoms and gut microbiota in patients with irritable bowel syndrome (IBS). (ekstern lenke)
• Mazzawi, Tarek; Valeur, Jørgen; Hausken, Trygve et al. (2017). Effect of faecal microbiota transplantation on gut bacterial fermentation products in patients with irritable bowel syndrome. (ekstern lenke)
• Hustoft, Tonje; Hausken, Trygve; Ystad, Synne Otteraaen et al. (2016). Low FODMAP diet alters symptoms, microbiota, short-chain fatty acids and cytokine profiles in patients with IBS: A randomized controlled trial. (ekstern lenke)
• Mazzawi, Tarek; Lied, Gülen Arslan; El-Salhy, Magdy et al. (2016). Effect of fecal microbiota transplantation on the symptoms and duodenal enteroendocrine cells in patients with irritable bowel syndrome. (ekstern lenke)
• Mazzawi, Tarek; Lied, Gülen Arslan; El-Salhy, Magdy et al. (2016). Kinetics of microbial community composition in patients with diarrhea-predominant irritable bowel syndrome following faecal microbiota transplantation. (ekstern lenke)
• Storlid, Eline Lundekvam; Hausken, Trygve; Lied, Gülen Arslan et al. (2016). The Gastric Accomodation Reflex Studied by Ultrasound, Manometry and Impedancemetry in a Pilot Study. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Krarup, Anne Lund; Lelic, Dina et al. (2012). No differences in central sensory (pain) processing to oesophageal pain between patients with non-cardiac chest pain and healthy subjects. (ekstern lenke)
• Hausken, Trygve; Dizdar, Vernesa; Hanevik, Kurt et al. (2012). Duodenal mucosal lymphocyte subgroups in patients with persisting abdominal symptoms after Giardia lamblia infection. (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Østgaard, Hilde K et al. (2011). Low densities of serotonin and peptide YY cells in the colon of patients with irritable bowel syndrome. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hoff, DAL; Gregersen, Hans et al. (2010). Patients with functional chest pain have an increased oesophageal wall tone during bag distension. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2010). Patients with functional chest pain have a higher wall tone during bag distention. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2009). Mechanosensation and mucosal blood perfusion during bag distension in the esophagus in patients with functional chest pain. (ekstern lenke)
• Jonasson, C; Jørgensen, Eivind; Tvete, Ingunn Fride et al. (2009). Changes in prescriptions dispensed for proton pump inhibitors (PPIs) following new restrictions on reimbursement - a nationwide Norwegian prescription database study. (ekstern lenke)
• Jonasson, C; Tvete, Ingunn Fride; Jørgensen, Eivind et al. (2009). CHANGES IN PRESCRIPTIONS DISPENSED ON PROTON PUMP INHIBITORS (PPIS) FOLLOWING NEW RESTRICTIONS FOR REIMBURSEMENT - A NATIONWIDE NORWEGIAN PRESCRIPTION DATABASE STUDY. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2009). Mechanosensation and mucosal blood perfusion during bag distension in the esophagus in patients with functional chest pain. . (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2009). Sensation elicited during distension in the oesophagus in patients with functional chest pain is caused by mechanical factors rather than by mucosal ischemia. . (ekstern lenke)
• Skuladottir, Hildur; Hatlebakk, Jan Gunnar; Hausken, Trygve (2007). Postprandial symptoms in healthy subjects improve in the left lateral supine position. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2007). Distension-induced pain in the esophagus correlates with wall stress and strain but not with mucosal perfusion in healthy volunteers. . (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2006). . Pain mechanisms of the oesophagus in healthy humans studied by laser Doppler flowmetry. . (ekstern lenke)
• Gregersen, Hans; Hoff, Dag Arne Lihaug; Ødegaard, Svein et al. (2006). Distenstion-induced sensory responses in the esophagus of healthy human are due to mechanical rather than ischemic mechanics. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein et al. (2005). Development of a multimodal device incorporating laser Doppler flowmetry to study oesophageal pain mechanisms. . (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar; Gregersen, Hans (2004). Laser Doppler flowmetry, endosonography and bag distension as a multimode device for studying biomechanics and blood flow in the porcine oesophagus. . (ekstern lenke)

Poster

• El-Salhy, Magdy; Valeur, Jørgen; Brønstad, Ingeborg et al. (2024). Faecal butyric acid levels are increased at 2 and 3 years after faecal microbiota transplantation (FMT) in patients with irritable bowel syndrome (IBS). (ekstern lenke)
• El-Salhy, Magdy; Casén, Christina; Valeur, Jørgen et al. (2021). Responses to faecal microbiota transplantation in female and male patients with irritable bowel syndrome. (ekstern lenke)
• Hillestad, Eline; Lied, Gülen Arslan; Steinsvik, Elisabeth Kjelsvik et al. (2019). Evaluation of a tertiary, multidisciplinary outpatient clinic for irritable bowel syndrome. (ekstern lenke)
• Pham, Khanh Do-Cong; Havre, Roald Flesland; Gilja, Odd Helge et al. (2019). OUTCOME OF PER ORAL ENDOSCOPIC MYOTOMY FOR TREATMENT OF ACHALASIA - NORWEGIAN SINGLE CENTER EXPERIENCE WITH MEDIAN FOLLOWING-UP OF 24 MONTHS. (ekstern lenke)
• Berentsen, Birgitte; Bharath, HN; Lundervold, Astrid et al. (2019). Brain-Gut-Microbiota Interaction in Irritable Bowel Syndrome: A Multidimensional Approach . (ekstern lenke)
• Mazzawi, Tarek; Lied, Gülen Arslan; Hov, Johannes Espolin Roksund et al. (2018). Correlations between gut microenvironment and symptoms in patients with diarrhea-predominant irritable bowel syndrome. (ekstern lenke)
• Mazzawi, Tarek; Lied, Gülen Arslan; Hov, Johannes Espolin Roksund et al. (2018). Effects of faecal microbiota transplantation on gut microenvironment and symptoms in patients with irritable bowel syndrome. (ekstern lenke)
• Jensen, Caroline; Dale, Hanna Fjeldheim; Hausken, Trygve et al. (2018). The effect of a cod protein hydrolysate on postprandial glucose metabolism in healthy subjects. (ekstern lenke)
• Mazzawi, Tarek; Valeur, Jørgen; Hausken, Trygve et al. (2017). Effect of faecal microbiota transplantation on gut bacterial fermentation products in patients with irritable bowel syndrome. (ekstern lenke)
• Dale, Hanna Fjeldheim; Hatlebakk, Jan Gunnar; Hovdenak, Nils et al. (2017). The effect of a controlled gluten challenge in patients with suspected non-coeliac gluten sensitivity: A randomized, double-blind placebo-controlled challenge. (ekstern lenke)
• Hustoft, Tonje; Hausken, Trygve; Ystad, Synne Otteraaen et al. (2016). Low FODMAP diet alters symptoms, microbiota, short-chain fatty acids and cytokine profiles in patients with IBS: A randomized controlled trial. (ekstern lenke)
• Hustoft, Tonje; Hausken, Trygve; Ystad, Synne Otteraaen et al. (2016). Low versus high FODMAP diet in patients with irritable bowel syndrome. (ekstern lenke)
• Hustoft, Tonje; Hausken, Trygve; Ystad, Synne Otteraaen et al. (2016). Low FODMAP diet – just placebo? Low versus high FODMAP diet in patients with irritable bowel syndrome. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Krarup, Anne Lund; Lelic, Dina et al. (2012). No differences in central sensory (pain) processing to oesophageal pain between patients with non-cardiac chest pain and healthy subjects. (ekstern lenke)
• Nilssen, Inge Berg; Gregersen, Hans; Ødegaard, Svein et al. (2010). In patients with functional chest pain, sensation elicited during oesophageal bag distension is mechanical rather than ischemic in origin. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2010). Sensation elicited during distension in the oesophagus in patients with functional chest pain is caused by mechanical factors rather than by mucosal ischemia.. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2008). Development of a multimodal device incorporating laser Doppler flowmetry to study oesophageal pain mechanisms. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2008). Distension-induced pain in the esophagus correlates with wall stress and strain but not with mucosal perfusion in healthy volunteers.. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2007). Distensjonsutløyst smerte i øsofagus hjå friske korrelerer med vegg-stress og -strain, men ikkje med mucosa perfusjon. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2007). Pain mechanisms of the esophagus in healthy humans studied by laser Doppler flowmetry. . (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2006). Development of a multimodal device incorporating laser Doppler flowmetry to study oesophageal pain mechanisms. (ekstern lenke)
• Katz, Phil O; Silman, Joel; Katzka, David et al. (1998). H.pylori infection increases nocturnal acid control on proton pump inhibitors. (ekstern lenke)

Vitenskapelig oversiktsartikkel/review

• Christensen, Camilla; Knudsen, Andrea; Arnesen, Erik Kristoffer et al. (2024). Diet, Food, and Nutritional Exposures and Inflammatory Bowel Disease or Progression of Disease: an Umbrella Review. (ekstern lenke)
• El-Salhy, Magdy; Hausken, Trygve; Hatlebakk, Jan Gunnar (2021). Current status of fecal microbiota transplantation for irritable bowel syndrome. (ekstern lenke)
• Bekkelund, Mattis; Sangnes, Dag André; Hatlebakk, Jan Gunnar et al. (2019). Pathophysiology of idiopathic gastroparesis and implications for therapy. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan Gunnar; Hausken, Trygve (2019). Possible role of peptide YY (PYY) in the pathophysiology of irritable bowel syndrome (IBS). (ekstern lenke)
• El-Salhy, Magdy; Tefera, Solomon; Hausken, Trygve et al. (2017). Gastrointestinal neuroendocrine peptides/amines in inflammatory bowel Disease. (ekstern lenke)
• El-Salhy, Magdy; Hausken, Trygve; Gilja, Odd Helge et al. (2016). The possible role of gastrointestinal endocrine cells in the pathophysiology of irritable bowel syndrome. (ekstern lenke)
• Drewes, Asbjørn Mohr; Munkholm, Pia; Simrén, Magnus et al. (2016). Definition, diagnosis and treatment strategies for opioid-induced bowel dysfunction-Recommendations of the Nordic Working Group. (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan Gunnar; Gilja, Odd Helge et al. (2015). The relation between celiac disease, nonceliac gluten sensitivity and irritable bowel syndrome. (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Gilja, Odd Helge et al. (2014). Is irritable bowel syndrome an organic disorder?. (ekstern lenke)
• El-Salhy, Magdy; Svensen, Rune; Hatlebakk, Jan G et al. (2014). Chronic constipation and treatment options (Review). (ekstern lenke)
• El-Salhy, Magdy; Gilja, Odd Helge; Gundersen, Doris Irene et al. (2014). Interaction between ingested nutrients and gut endocrine cells in patients with irritable bowel syndrome (Review). (ekstern lenke)
• El-Salhy, Magdy; Hatlebakk, Jan G; Gilja, Odd Helge et al. (2014). Irritable bowel syndrome: recent developments in diagnosis, pathophysiology, and treatment. (ekstern lenke)
• El-Salhy, Magdy; Mazzawi, Tarek; Gundersen, Doris Irene et al. (2013). The role of peptide YY in gastrointestinal diseases and disorders (Review). (ekstern lenke)
• Katle, Elin Johanne; Hatlebakk, Jan G; Steinsvåg, Sverre K (2013). Gastroesophageal Reflux and Rhinosinusitis. (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Hatlebakk, Jan G et al. (2013). Clinical presentation, diagnosis, pathogenesis and treatment options for lymphocytic colitis (Review). (ekstern lenke)
• El-Salhy, Magdy; Gundersen, Doris Irene; Hatlebakk, Jan G et al. (2012). Irritable bowel syndrome: treatment options. (ekstern lenke)
• Dent, John; Kahrilas, Peter J.; Vakil, Nimish et al. (2008). Clinical trial design in adult reflux disease: a methodological workshop. (ekstern lenke)

Brev til redaktøren

• El-Salhy, Magdhy; Gilja, Odd Helge; Hatlebakk, Jan Gunnar (2023). Letter: A step forward towards a standard FMT protocol for IBS. (ekstern lenke)
• El-Salhy, Magdy; Hausken, Trygve; Hatlebakk, Jan Gunnar (2020). Letter: faecal microbiota transplantation for irritable bowel syndrome—which improvements are required?. (ekstern lenke)
• Hatlebakk, Jan Gunnar (2004). Intravenous esomeprazole - Viewpoint. (ekstern lenke)

Faglig foredrag

• Bekkelund, Mattis; Sangnes, Dag André; Valeur, Jørgen et al. (2023). Nausea associated to subsegmental intestinal hypomotility in diabetic gastroenteropathy. (ekstern lenke)
• Mazzawi, Tarek; Lied, Gülen Arslan; El-Salhy, Magdy et al. (2016). Kinetics of microbial community composition in patients with diarrhea-predominant irritable bowel syndrome following faecal microbiota transplantation. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2014). Vomiting - Cyclic Vomiting. (ekstern lenke)
• Hatle, Håvard; Hatlebakk, Jan Gunnar; Hoff, Dag Arne Lihaug (2013). Gravid kvinne med akutt pustebesvær. (ekstern lenke)
• Hatle, Håvard; Hatlebakk, Jan G; Hoff, Dag Arne Lihaug (2013). Gravid kvinne med akutt pustebesvær. (ekstern lenke)

Intervju

• Bergseth, Wilma; Garnås, Eirik; Hatlebakk, Jan Gunnar et al. (2023). Expert: Så kan viss kost minska IBS-symtom. (ekstern lenke)
• Bergseth, Wilma; Garnås, Eirik; Hatlebakk, Jan Gunnar et al. (2023). IBS-funn: − Kan gi betydelig symptomreduksjon. (ekstern lenke)

Anmeldelse

• Valeur, Jørgen; Hausken, Trygve; Hatlebakk, Jan Gunnar et al. (2021). Minneord: Arnold Berstad (1940-2020). (ekstern lenke)

Doktorgradsavhandling

• Jensen, Caroline; Hoff, Dag Arne Lihaug; Lied, Gülen Arslan et al. (2021). Supplementation with cod protein hydrolysate: Intervention studies in healthy adults and adults with metabolic syndrome. (ekstern lenke)
• Dale, Hanna Fjeldheim; Lied, Gülen Arslan; Hatlebakk, Jan Gunnar et al. (2020). Health effects of supplementation with cod protein hydrolysate: Impact on glucose metabolism and appetite in healthy subjects and gut health in irritable bowel syndrome. (ekstern lenke)
• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2010). Esophageal pain sensation during bag distention - biomechanical or ischemic in origin? : studied by a multi-modal device incorporating laser Doppler flowmetry, endosonography, manometry, and bag distension. (ekstern lenke)
• Hatlebakk, Jan Gunnar (1997). Diagnosis and treatment of uncomplicated reflux oesophagitis. (ekstern lenke)

Errata

• Dale, Hanna Fjeldheim; Jensen, Caroline; Hausken, Trygve et al. (2019). Effect of a cod protein hydrolysate on postprandial glucose metabolism in healthy subjects: A double-blind cross-over trial - CORRIGENDUM. (ekstern lenke)

Leder

• Mastracci, Luca; Fiocca, Roberto; Engström, Cecilia et al. (2017). Editorial: the diminishing returns of normalisation of the oesophageal mucosa-Authors' reply. (ekstern lenke)

Faglig kapittel

• Hatlebakk, Jan Gunnar; Emken, Birgitte-Elise G (2017). Sykdommer i øsofagus. (ekstern lenke)

Vitenskapelig monografi

• El-Salhy, Magdy; Hatlebakk, Jan G; Hausken, Trygve (2015). Understanding and Controlling the Irritable Bowel. (ekstern lenke)

Short communication

• Hatle, Håvard; Erwied, Boris; Lode, Inge et al. (2014). En gravid kvinne med oppkast og pustebesvær. (ekstern lenke)

Populærvitenskapelig artikkel

• Pham, Khanh Do-Cong; Viste, Asgaut; Hatlebakk, Jan Gunnar et al. (2014). Per Oral Endoksopisk Myotomi (POEM)for akalasi. (ekstern lenke)
• Hatlebakk, Jan G; Emken, Birgitte-Elise G; Glazkov, Valerij et al. (2013). Correct use of proton pump inhibitors for gastro-oesophageal reflux disease. (ekstern lenke)

Fagartikkel

• Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2013). Ultralyd brukt i diagnostikken av ikkje-kardiale brystsmerter. (ekstern lenke)
• Essilfie, Isaac; Hoff, Dag Arne Lihaug; Hatlebakk, Jan Gunnar (2007). Behandling av gastroøsofageal reflukssykdom. (ekstern lenke)

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

• El-Salhy, Magdy; Gundersen, Doris Irene; Hatlebakk, Jan G et al. (2013). Diet and Irritable Bowel Syndrome, with a Focus on Appetite-Regulating Gut Hormones. (ekstern lenke)
• Tefera, Solomon; Hatlebakk, Jan Gunnar (2005). Ultrasound in Patients with Gastroesophageal Reflux Disease. (ekstern lenke)
• Hatlebakk, Jan Gunnar (1993). Verdi av pH-måling og manometri status 1993. (ekstern lenke)

Fagbok

• El-Salhy, Magdy; Gundersen, Doris Irene; Hatlebakk, Jan G et al. (2012). Irritable Bowel Syndrome: Diagnosis, Pathogenesis and Treatment Options. (ekstern lenke)

Leserinnlegg

• Hatlebakk, Jan G; Lerang, Frode; Moum, Bjørn (2010). Protonpumpehemmere gir ikke magekreft. (ekstern lenke)

Kronikk

• Hatlebakk, Jan Gunnar; Madsen, Per H.; Walle, Per O. et al. (2000). Heartburn treatment in primary care. Letter to the editor. (ekstern lenke)

Populærvitenskapelig foredrag

• Tefera, Solomon; Gilja, Odd Helge; Hatlebakk, Jan Gunnar et al. (1999). Completely opposite gastric accommodation patterns in functional dyspepsia patient and reflux oesophagitis. (ekstern lenke)
• Tefera, Solomon; Gilja, Odd Helge; Hatlebakk, Jan Gunnar et al. (1999). Gastric accommodation in patients with gastro-oesophageal reflux disease. (ekstern lenke)
• Mattson, C; Kundell, L; Carlsson, J et al. (1999). Quality of life in the long term management og gastroesophageal reflux disease treated with omeprazole or antireflux surgery. (ekstern lenke)

Leksikonartikkel

• Hatlebakk, Jan Gunnar; Katz, Phil O; Castell, Donald O (1999). The medically refractory patient - when proton pump inhibitors fail. (ekstern lenke)

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