Academic article

• Kind, Laura; Molnes, Janne; Tjora, Erling et al. (2024). Molecular mechanism of HNF-1A–mediated HNF4A gene regulation and promoter-driven HNF4A-MODY diabetes. (external link)
• Meling, Sondre V.; Tjora, Erling; Eichele, Heike et al. (2023). The PanGut-study: Evoked potentials following rectal balloon distention, a way of evaluating diabetic autonomic neuropathy in the gut?. (external link)
• Meling, Sondre V.; Tjora, Erling; Eichele, Heike et al. (2023). Rectal sensitivity correlated with gastrointestinal-mediated glucose disposal, but not the incretin effect. (external link)
• Svalastoga, Pernille; Kaci, Alba; Molnes, Janne et al. (2023). Characterisation of HNF1A variants in paediatric diabetes in Norway using functional and clinical investigations to unmask phenotype and monogenic diabetes. (external link)
• Meling, Sondre V.; Tjora, Erling; Eichele, Heike et al. (2023). The Composite Autonomic Symptom Score 31 Questionnaire: A Sensitive Test to Detect Risk for Autonomic Neuropathy. (external link)
• Velde, Christoffer Drabløs; Reigstad, Hallvard; Tjora, Erling et al. (2023). Medfødt hyperinsulinisme. (external link)
• Fernandez, Manuel Carrasco; Wang, Chencheng; Søviknes, Anne Mette et al. (2022). Spatial Environment Affects HNF4A Mutation-Specific Proteome Signatures and Cellular Morphology in hiPSC-Derived β-Like Cells. (external link)
• Haugen, Christine; Lysne, Vegard; Haldorsen, Ingfrid S. et al. (2022). MRI adipose tissue segmentation and quantification in R (RAdipoSeg). (external link)
• Erchinger, Friedemann Georg; Tjora, Erling; Nordaas, Ingrid Kvåle et al. (2022). Pancreatic enzyme treatment in chronic pancreatitis: Quality of management and adherence to guidelines–A cross-sectional observational study. (external link)
• 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. (external link)
• Nordaas, Ingrid Kvåle; Tjora, Erling; Dimcevski, Georg Gjorgji et al. (2022). Structural imaging findings are related to clinical complications in chronic pancreatitis. (external link)
• Tijardović, Marko; Štambuk, Tamara; Juszczak, Agata et al. (2022). Fucosylated AGP glycopeptides as biomarkers of HNF1A-Maturity onset diabetes of the young. (external link)
• Jellas, Khadija el; Dušátková, Petra; Haldorsen, Ingfrid S. et al. (2022). Two New Mutations in the CEL Gene Causing Diabetes and Hereditary Pancreatitis: How to Correctly Identify MODY8 Cases. (external link)
• Erchinger, Friedemann Georg; Engjom, Trond; Dimcevski, Georg Gjorgji et al. (2022). Exocrine pancreas insufficiency in chronic pancreatitis – Risk factors and associations with complications. A multicentre study of 1869 patients. (external link)
• Engjom, Trond; Nordaas, Ingrid Kvåle; Tjora, Erling et al. (2021). Aetiological risk factors are associated with distinct imaging findings in patients with chronic pancreatitis: A study of 959 cases from the Scandinavian Baltic Pancreatic Club (SBPC) imaging database. (external link)
• Choi, Man Hung; Tjora, Erling; Forthun, Rakel Brendsdal et al. (2021). KRAS mutation analysis by droplet digital PCR of duodenal juice from patients with MODY8 and other pancreatic diseases. (external link)
• Tjora, Erling; Gravdal, Anny; Engjom, Trond et al. (2021). Protein misfolding in combination with other risk factors in CEL-HYB1-mediated chronic pancreatitis. (external link)
• Tjora, Erling; Dimcevski, Georg Gjorgji; Haas, Stephan L. et al. (2020). Patient reported exposure to smoking and alcohol abuse are associated with pain and other complications in patients with chronic pancreatitis. (external link)
• Engjom, Trond; Tjora, Erling; Erchinger, Friedemann Georg et al. (2020). Secretin-stimulated magnetic resonance imaging reveals variable diagnostic accuracy according to etiology in pancreatic disease. (external link)
• Olesen, Søren Schou; Poulsen, Jakob Lykke; Novovic, Srdan et al. (2020). Multiple risk factors for diabetes mellitus in patients with chronic pancreatitis: A multicentre study of 1117 cases. (external link)
• Engjom, Trond; Kavaliauskiene, Giedre; Tjora, Erling et al. (2018). Sonographic pancreas echogenicity in cystic fibrosis compared to exocrine pancreatic function and pancreas fat content at Dixon-MRI. (external link)
• Erchinger, Friedemann Georg; Øvre, Anne Kristine Nordby; Aarseth, Marita Malene et al. (2018). Fecal fat and energy loss in pancreas exocrine insufficiency: the role of pancreas enzyme replacement therapy. (external link)
• Tjora, Erling; Erchinger, Friedemann Georg; Engjom, Trond et al. (2018). Analysis of lipase activity in duodenal juice. Comparison of an automated spectrophotometric assay to a fluorometric microplate assay, and factors affecting sample stability. (external link)
• Erchinger, Friedemann Georg; Engjom, Trond; Jurmy, Palwasha et al. (2017). Fecal fat analyses in chronic pancreatitis importance of fat ingestion before stool collection. (external link)
• Erchinger, Friedemann Georg; Engjom, Trond; Tjora, Erling et al. (2017). Analysis of amylase in duodenal juice - Automated kinetic spectrophotometric analysis versus manual colorimetric endpoint assay. (external link)
• Engjom, Trond; Tjora, Erling; Wathle, Gaute Kjellevold et al. (2017). Secretin-stimulated ultrasound estimation of pancreatic secretion in cystic fibrosis validated by magnetic resonance imaging. (external link)
• Madzak, Adnan; Engjom, Trond; Wathle, Gaute Kjellevold et al. (2016). Secretin-stimulated MRI assessment of exocrine pancreatic function in patients with cystic fibrosis and healthy controls. (external link)
• Erchinger, Friedemann Georg; Engjom, Trond; Gudbrandsen, Oddrun Anita et al. (2016). Automated spectrophotometric bicarbonate analysis in duodenal juice compared to the back titration method. (external link)
• Teo, Adrian Kee Keong; Lau, Hwee Hui; Valdez, Ivan Achel et al. (2016). Early Developmental Perturbations in a Human Stem Cell Model of MODY5/HNF1B Pancreatic Hypoplasia. (external link)
• Engjom, Trond; Erchinger, Friedemann Georg; Tjora, Erling et al. (2015). Diagnostic accuracy of secretin-stimulated ultrasonography of the pancreas assessing exocrine pancreatic failure in cystic fibrosis and chronic pancreatitis. (external link)
• Fjeld, Karianne; Weiss, Frank Ulrich; Lasher, Denise et al. (2015). A recombined allele of the lipase gene CEL and its pseudogene CELP confers susceptibility to chronic pancreatitis. (external link)
• Engjom, Trond; Erchinger, Friedemann Georg; Lærum, Birger Norderud et al. (2015). Diagnostic accuracy of a short endoscopic secretin test in patients with cystic fibrosis. (external link)
• Engjom, Trond; Erchinger, Friedemann Georg; Lærum, Birger Norderud et al. (2015). Ultrasound echo-intensity predicts severe Pancreatic affection in cystic fibrosis patients. (external link)
• Wathle, Gaute K; Tjora, Erling; Ersland, Lars et al. (2014). Assessment of Exocrine Pancreatic Function by Secretin-Stimulated Magnetic Resonance Cholangiopancreaticography and Diffusion-Weighted Imaging in Healthy Controls. (external link)
• Ræder, Helge; McAllister, Fiona E.; Tjora, Erling et al. (2014). Carboxyl-ester lipase maturity-onset diabetes of the young is associated with development of pancreatic cysts and upregulated MAPK signaling in secretin-stimulated duodenal fluid. (external link)
• Bjørlykke, Yngvild; Vethe, Heidrun; Vaudel, Marc et al. (2014). Carboxyl-ester lipase maturity-onset diabetes of the young disease protein biomarkers in secretin-stimulated duodenal juice. (external link)
• Tjora, Erling; Wathle, Gaute K; Engjom, Trond et al. (2013). Severe pancreatic dysfunction but compensated nutritional status in monogenic pancreatic disease caused by carboxyl-ester lipase mutations. (external link)
• Erchinger, Friedemann; Engjom, Trond; Tjora, Erling et al. (2013). Quantification of pancreatic function using a clinically feasible short endoscopic secretin test. (external link)
• Elbarbary, Nancy S.; Tjora, Erling; Molnes, Janne et al. (2013). An Egyptian family with H syndrome due to a novel mutation in SLC29A3 illustrating overlapping features with pigmented hypertrichotic dermatosis with insulin-dependent diabetes and Faisalabad histiocytosis. (external link)
• Thanabalasingham, Gaya; Huffman, Jennifer; Kattla, Jayesh J. et al. (2013). Mutations in HNF1A result in marked alterations of plasma glycan profile. (external link)
• Teo, Adrian K.K.; Windmueller, Rebecca; Johansson, Bente Berg et al. (2013). Derivation of Human Induced Pluripotent Stem Cells from Patients with Maturity Onset Diabetes of the Young. (external link)
• Tjora, Erling; Wathle, Gaute K; Erchinger, Friedemann et al. (2013). Exocrine pancreatic function in hepatocyte nuclear factor 1 beta-maturity-onset diabetes of the young (HNF1B-MODY) is only moderately reduced: compensatory hypersecretion from a hypoplastic pancreas. (external link)
• Holme, Øyvind; Tjora, Erling; Aabakken, Lars (2011). Eosinofil øsofagitt. (external link)
• Johansson, Bente Berg; Torsvik, Janniche; Bjørkhaug, Lise et al. (2011). Diabetes and pancreatic exocrine dysfunction due to mutations in the carboxyl ester lipase gene-maturity onset diabetes of the young (CEL-MODY) A PROTEIN MISFOLDING DISEASE. (external link)
• Thanabalasingham, Gaya; Shah, Nabi; Vaxillaire, Martine et al. (2011). A large multi-centre European study validates high-sensitivity C-reactive protein (hsCRP) as a clinical biomarker for the diagnosis of diabetes subtypes. (external link)
• Tjora, Erling; Moster, Dag; Markestad, Trond et al. (2010). Early severe weight loss in newborns after discharge from regular nurseries. (external link)

Poster

• Pham, Khanh Do-Cong; Havre, Roald Flesland; Tjora, Erling (2023). Per Oral Endoscopic Myotomy using super pulsed thulium fiber laser - preliminary data. (external link)
• Havre, Roald Flesland; Tjora, Erling (2023). Per Oral Endoscopic Myotomy using super pulsed thulium fiber laser - preliminary data. (external link)
• Wathle, Gaute Kjellevold; Engjom, Trond; Lærum, Birger Norderud et al. (2015). Secretin stimulated MRCP in the evaluation of exocrine pancreatic function in cystic fibrosis. (external link)
• Erchinger, Friedemann Georg; Gudbrandsen, Oddrun Anita; Engjom, Trond et al. (2014). Quantification of exocrine ductal pancreatic function using a short endoscopic secretin test and automatic duodenal bicarbonate measurement. (external link)
• Aasmul, Liv; Tjora, Erling; Gudbrandsen, Oddrun Anita et al. (2014). From Manual to Automated Analysis of Lipase and Amylase in Duodenal Juice. (external link)
• Engjom, Trond; Erchinger, Friedemann; Dimcevski, Georg Gjorgji et al. (2013). Parenchymal and functional ultrasonographic characteristics of the pancreas in cystic fibrosis. The correlation of image modalities to exocrine pancreatic function. (external link)
• Engjom, Trond; Erchinger, Friedemann Georg; Dimcevski, Georg Gjorgji et al. (2012). Ultrasond of the pancreas in cystic fibrosis. (external link)

Academic lecture

• Sangnes, Dag André; Engjom, Trond; Løvaas, Kristian et al. (2023). Epidemiologi og patofysiologi ved diabetisk diaré (DIAREPA). (external link)
• Erchinger, Friedemann Georg; Gudbrandsen, Oddrun Anita; Engjom, Trond et al. (2015). Automatisering av enzymmålinger i duodenalsaft ved kort endoskopisk sekretintest. (external link)
• Erchinger, Friedemann Georg; Gudbrandsen, Oddrun Anita; Engjom, Trond et al. (2015). Ved sammenlikning av to metoder er korrelasjonskoeffisient ikke nok - Bruk også Bland-Altman plot. (external link)
• Engjom, Trond; Erchinger, Friedemann; Dimcevski, Georg Gjorgji et al. (2011). Transabdominal ultrasound of the pancreas after secretin-stimulation. (external link)

Abstract

• Jouleh, Taraneh; Nordaas, Ingrid Kvåle; Tjora, Erling et al. (2023). Gallbladder Function in Diabetes Assessed by Ultrasound. (external link)
• Wathle, Gaute K; Tjora, Erling; Njølstad, Pål Rasmus et al. (2013). Assessment of exocrine pancreatic funtion by secretin-stimulated MRCP and DWI in healthy controls and in patients with monogenic diabetes. (external link)
• Erchinger, Friedemann; Engjom, Trond; Tjora, Erling et al. (2011). A Short Endoscopic Pancreas Function Test to Diagnose Chronic Pancreatitis. (external link)

Errata

• Meling, Sondre V.; Tjora, Erling; Eichele, Heike et al. (2023). Corrigendum to “The PanGut-study: Evoked potentials following rectal balloon distention, a way of evaluating diabetic autonomic neuropathy in the gut?” [J. Diabetes Complicat., Volume 37, Issue 5, May 2023, 108452] (Journal of Diabetes and Its Complications (2023) 37(5), (S1056872723000508), (10.1016/j.jdiacomp.2023.108452)). (external link)

Feature article

• Haug, Ane Charlotte; Markestad, Trond; Tjora, Erling et al. (2021). Stramt tungebånd hos nyfødte. (external link)

Academic literature review

• Johansson, Bente Berg; Fjeld, Karianne; el Jellas, Khadija et al. (2018). The role of the carboxyl ester lipase (CEL) gene in pancreatic disease. (external link)

Short communication

• Fjeldsbø, Wenche Marie; Aukland, Stein Magnus; Tjora, Erling (2014). Medisin i bilder; “Farlig tiltrekning”.. (external link)

Academic chapter/article/Conference paper

• Engjom, Trond; Erchinger, Friedemann; Dimcevski, Georg Gjorgji et al. (2013). Parenchymal and functional ultrasonographic characteristics of the pancreas in cystic fibrosis. The correlation of image modalities to exocrine pancreatic function. (external link)

Doctoral dissertation

• Tjora, Erling (2013). Novel endoscopic and MRI-based methods for evaluating exocrine pancreatic function in pancreatitis and monogenic forms of diabetes. (external link)

See a complete overview of publications in Cristin.