Jørgen Valeur

• Zerouga, Insaf; Valeur, Jørgen; Sommer, Christine; Småstuen, Milada Cvancarova; Medhus, Asle Wilhelm & Lund, Charlotte [Show all 22 contributors for this article] (2024). Dietary intake and nutritional status in patients with newly diagnosed inflammatory bowel disease: insights from the IBSEN III study. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. p. 1–9. doi: 10.1080/00365521.2024.2313056. Show summary

  Background: Dietary recommendations in inflammatory bowel disease (IBD) are inconclusive, and patients may follow restrictive diets with increased risk of malnutrition. The aim of this study was to compare dietary intakes and nutritional status in men and women with newly diagnosed IBD with a general population sample, and to investigate whether intakes were in line with the Nordic Nutrition Recommendations. Methods: This was a cross-sectional study including adults≥ 40 years with IBD from the Inflammatory Bowel Disease in South-Eastern Norway (IBSEN) III cohort study. A validated food frequency questionnaire (FFQ) was used in dietary data collection, and a sample from the seventh survey of the Tromsø Study was included as a comparison group. Results: A total of 227 men and women with IBD were included. IBD patients had higher intake of grain products, sweetened beverages, energy, fat and polyunsaturated fat (PUFA), but lower intake of dairy products, alcohol and iodine compared to adults from the comparison sample (p < 0.01). Intakes of saturated fat and carbohydrates in both genders, and vitamin D in women were not within recommended levels. Anemia and hypoalbuminemia were more prevalent in IBD patients than in the comparison sample. Conclusions: Dietary intakes in newly diagnosed IBD patients were mostly in line with Nordic Nutrition Recommendations. Higher proportion of IBD patients exceeded recommended allowances of fat and added sugar than the comparison sample. Insufficient micronutrient intake, anemia and hypoalbuminemia are present challenges in IBD patients that require monitoring.

• Valeur, Jørgen & Rickers, Andreas Lykke (2024). Trang vinkelmelloma.mesenterica superior og aorta. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 144(2). doi: 10.4045/tidsskr.23.0756.
• Dale, Hanna Fjeldheim; Lorentzen, Sissi C. Stove; Mellin-Olsen, Tonje & Valeur, Jørgen (2023). Diet-microbiota interaction in irritable bowel syndrome: looking beyond the low-FODMAP approach. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. doi: 10.1080/00365521.2023.2228955.
• Herfindal, Anne Mari; Megen, Frida van; Gilde, Mari Kristine Overvik; Valeur, Jørgen; Rudi, Knut & Skodje, Gry [Show all 9 contributors for this article] (2023). Effects of a low FODMAP diet on gut microbiota in individuals with treated celiac disease having persistent gastrointestinal symptoms-a randomized controlled trial. British Journal of Nutrition. ISSN 0007-1145. 130(12), p. 2061–2075. doi: 10.1017/S0007114523001253. Full text in Research Archive
• Stø, Kristine; Skagen, Karolina Ryeng; Valeur, Jørgen; Yang, Kuan; Bjerkeli, Vigdis & Aukrust, Pål [Show all 8 contributors for this article] (2023). Increased plasma levels of non-sugar sweeteners in patients with symptomatic carotid atherosclerosis. Scandinavian Cardiovascular Journal. ISSN 1401-7431. 57(1). doi: 10.1080/14017431.2023.2205068. Full text in Research Archive
• Birkeland, Eline; Gharagozlian, Sedeghe; Valeur, Jørgen & Aas, Anne-Marie (2023). Short-chain fatty acids as a link between diet and cardiometabolic risk: a narrative review. Lipids in Health and Disease. ISSN 1476-511X. 22(1). doi: 10.1186/s12944-023-01803-5. Full text in Research Archive
• Stø, Kristine; Valeur, Jørgen; Ueland, Thor; Malmstrøm, Gunn Helen; Bjerkeli, Vigdis & Trøseid, Marius [Show all 12 contributors for this article] (2022). Fecal level of butyric acid, a microbiome-derived metabolite, is increased in patients with severe carotid atherosclerosis. Scientific Reports. ISSN 2045-2322. 12(1), p. 1–9. doi: 10.1038/s41598-022-26759-x. Full text in Research Archive
• Soares, Jelena Zugic; Valeur, Jørgen; Saltyte Benth, Jurate; Knapskog, Anne Brita; Selbæk, Geir & Bogdanovic, Nenad [Show all 7 contributors for this article] (2022). Associations Between Intrathecal Levels of Vitamin D, Cytokines, and Core Biomarkers of Alzheimer's Disease: A Cross-Sectional Study. Journal of Alzheimer's Disease. ISSN 1387-2877. 89(3), p. 825–834. doi: 10.3233/JAD-220407. Show summary

  Background: Several studies have examined association between vitamin D levels in serum and cognition, but little is known of vitamin D levels in cerebrospinal fluid (CSF) and association with Alzheimer’s disease (AD). Objective: In this cross-sectional, explorative study we investigated possible associations of vitamin D in CSF with biomarkers for AD, amyloid-β, tau protein/phosphorylated tau protein in CSF, and with the cytokines IL-6, IL-8, and TNF-α in CSF in patients with cognitive impairment and cognitively healthy controls. Methods: We included 100 outpatients ≥65 years referred for assessment of cognitive impairment and 76 age- and sex-matched cognitively healthy controls. Levels of 25-hydroxyvitamin D (25(OH)D), amyloid-β, tau protein and phosphorylated tau protein, as well as IL-6, IL-8, and TNF-α, were analyzed in CSF in both groups. Results: Higher levels of 25(OH)D in CSF in all groups together were associated with lower levels of tau protein (p = 0.01) and phosphorylated tau protein (p = 0.005). We found no association between 25(OH)D levels in CSF and pathological levels of amyloid-β in CSF nor levels of IL-6 or TNF-α in CSF. Higher levels of 25(OH)D in CSF were associated with higher levels of IL-8 in CSF (p = 0.002). However, vitamin D explained only 6% of variance in IL-8. There was no significant difference between the patient groups and the control group regarding the association between 25(OH)D in CSF and any of the three cytokines in CSF. Conclusion: Participants with higher CSF levels of 25(OH)D exhibited reduced CSF levels of tau protein and phosphorylated tau protein.

• Soares, Jelena Zugic; Valeur, Jørgen; Saltyte Benth, Jurate; Knapskog, Anne Brita; Selbæk, Geir & Arefi, Golchin [Show all 10 contributors for this article] (2022). Vitamin D in Alzheimer's Disease: Low Levels in Cerebrospinal Fluid Despite Normal Amounts in Serum. Journal of Alzheimer's Disease. ISSN 1387-2877. 86(3), p. 1301–1314. doi: 10.3233/JAD-215536. Show summary

  Background:Vitamin D insufficiency has been suggested as a dementia risk factor. Objective:In this cross-sectional, explorative study we investigated whether levels of vitamin D in cerebrospinal fluid (CSF) are lower in patients with positive biomarkers of Alzheimer’s disease (AD) compared to cognitively healthy controls and whether polymorphisms of the vitamin D receptor (VDR) gene, FokI, BsmI, ApaI, and TaqI, are associated with levels of vitamin D in CSF and cognition. Methods:We included 100 patients≥65 years assessed for cognitive impairment and 76 cognitively healthy controls. Levels of 25-hydroxyvitamin D (25(OH)D) in both serum and CSF, and VDR polymorphisms were analyzed. Results:The mean level of 25(OH)D in serum was 78.6 (SD 28.9) nmol/l. While serum levels of 25(OH)D were not significantly different between the groups, CSF levels of 25(OH)D were significantly lower in patients with positive AD core biomarkers (p = 0.001) compared to patients without such biomarkers. Individuals with the BsmI major homozygote genotype had significantly lower results on a 10-word delayed recall test (p = 0.044) and verbal fluency test (p = 0.013), and individuals with the TaqI major homozygote genotype had significantly lower results on a verbal fluency test (p = 0.030) compared to individuals with the corresponding minor homozygote genotype. Conclusion:Patients with positive AD core biomarkers have low CSF levels of 25(OH)D, despite sufficient serum levels. CSF levels of 25(OH)D do not seem to be affected by any of the four VDR gene polymorphisms. TaqI and BsmI major homozygote genotypes might be at increased risk for development of cognitive decline.

• El-Salhy, Magdy; Bråthen Kristoffersen, Anja; Valeur, Jørgen; Casén, Christina; Hatlebakk, Jan Gunnar & Gilja, Odd Helge [Show all 7 contributors for this article] (2021). Long-term effects of fecal microbiota transplantation (FMT) in patients with irritable bowel syndrome. Neurogastroenterology and Motility. ISSN 1350-1925. 34(1). doi: 10.1111/nmo.14200.
• Skaarud, Kristin Aneta Joan; Hov, Johannes Espolin Roksund; Hansen, Simen Hyll; Kummen, Martin; Valeur, Jørgen & Seljeflot, Ingebjørg [Show all 12 contributors for this article] (2021). Mortality and microbial diversity after allogenic hematopoietic stem cell transplantation: secondary analysis of a randomized nutritional intervention trial. Scientific Reports. ISSN 2045-2322. doi: 10.1038/s41598-021-90976-z. Full text in Research Archive
• El-Salhy, Magdy; Casén, Christina; Valeur, Jørgen; Hausken, Trygve & Hatlebakk, Jan Gunnar (2021). Responses to faecal microbiota transplantation in female and male patients with irritable bowel syndrome. World Journal of Gastroenterology (WJG). ISSN 1007-9327. 27(18), p. 2219–2237. doi: 10.3748/wjg.v27.i18.2219.
• El-Salhy, Magdy; Valeur, Jørgen; Hausken, Trygve & Hatlebakk, Jan Gunnar (2020). Changes in fecal short-chain fatty acids following fecal microbiota transplantation in patients with irritable bowel syndrome. Neurogastroenterology and Motility. ISSN 1350-1925. 33(2). doi: 10.1111/nmo.13983.
• Berentsen, Birgitte; Nagaraja, Bharath Halandur; Teige, Erica Persson; Lied, Gülen Arslan; Lundervold, Astri & Lundervold, Katarina [Show all 21 contributors for this article] (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. Medicine. ISSN 0025-7974. 99:e21950(37), p. 1–8. doi: 10.1097/MD.0000000000021950.
• Fretheim, Håvard Halland; Chung, Brian K.; Didriksen, Henriette; Bækkevold, Espen Sønderaal; Midtvedt, Øyvind & Brunborg, Cathrine [Show all 18 contributors for this article] (2020). Fecal Microbiota Transplantation in Systemic Sclerosis: A Double-Blind, Placebo-Controlled Randomized Pilot Trial. PLOS ONE. ISSN 1932-6203. 15:e0232739(5), p. 1–14. doi: 10.1371/journal.pone.0232739. Full text in Research Archive
• Birkeland, Eline; Gharagozlian, Sedegheh; Birkeland, Kåre I.; Valeur, Jørgen; Måge, Ingrid & Rud, Ida [Show all 7 contributors for this article] (2020). Prebiotic effect of inulin-type fructans on faecal microbiota and short-chain fatty acids in type 2 diabetes: a randomised controlled trial. European Journal of Nutrition. ISSN 1436-6207. 59, p. 3325–3338. doi: 10.1007/s00394-020-02282-5. Full text in Research Archive Show summary

  Purpose Compared to a healthy population, the gut microbiota in type 2 diabetes presents with several unfavourable features that may impair glucose regulation. The aim of this study was to evaluate the prebiotic efect of inulin-type fructans on the faecal microbiota and short-chain fatty acids (SCFA) in patients with type 2 diabetes. Methods The study was a placebo controlled crossover study, where 25 patients (15 men) aged 41–71 years consumed 16 g of inulin-type fructans (a mixture of oligofructose and inulin) and 16-g placebo (maltodextrin) for 6 weeks in randomised order. A 4-week washout separated the 6 weeks treatments. The faecal microbiota was analysed by high-throughput 16S rRNA amplicon sequencing and SCFA in faeces were analysed using vacuum distillation followed by gas chromatography. Results Treatment with inulin-type fructans induced moderate changes in the faecal microbiota composition (1.5%, p=0.045). A bifdogenic efect was most prominent, with highest positive efect on operational taxonomic units (OTUs) of Bifdobacterium adolescentis, followed by OTUs of Bacteroides. Signifcantly higher faecal concentrations of total SCFA, acetic acid and propionic acid were detected after prebiotic consumption compared to placebo. The prebiotic fbre had no efects on the concentration of butyric acid or on the overall microbial diversity. Conclusion Six weeks supplementation with inulin-type fructans had a signifcant bifdogenic efect and induced increased concentrations of faecal SCFA, without changing faecal microbial diversity. Our fndings suggest a moderate potential of inulin-type fructans to improve gut microbiota composition and to increase microbial fermentation in type 2 diabetes. Trial registration The trial is registered at clinicaltrials.gov (NCT02569684).

• Farup, Per Grønaas & Valeur, Jørgen (2020). Changes in Faecal Short-Chain Fatty Acids after Weight-Loss Interventions in Subjects with Morbid Obesity. Nutrients. ISSN 2072-6643. 12(3). doi: 10.3390/nu12030802. Full text in Research Archive Show summary

  The gut microbiota and their metabolites, e.g., short-chain fatty acids (SCFA), are associated with obesity. The primary aims were to study faecal SCFA levels and the changes in SCFA levels after weight-loss interventions in subjects with obesity, and secondarily, to study factors associated with the faecal SCFA levels. In total, 90 subjects (men / women: 15/75) with a mean age of 44.4 (SD 8.4) years, BMI 41.7 (SD 3.7) kg/m2 and morbid obesity (BMI > 40 or > 35 kg/m2 with obesity-related complications) were included. Faecal SCFA and other variables were measured at inclusion and after a six-month conservative weight-loss intervention followed by bariatric surgery (Roux-en-Y gastric bypass or gastric sleeve). Six months after surgery, the total amount of SCFA was reduced, the total and relative amounts of the main straight SCFA (acetic-, propionic-, and butyric- acids) were reduced, and the total and relative amounts of branched SCFA (isobutyric-, isovaleric-, and isocaproic- acids) were increased. The changes indicate a shift toward a proteolytic fermentation pattern with unfavorable health effects. The amount of SCFA was associated with the diet but not with metabolic markers or makers of the faecal microbiota composition. Dietary interventions could counteract the unfavorable effects. View Full-Text Keywords: obesity; short-chain fatty acids; bariatric surgery; weight-loss; faecal microbiota

• Steinsvik, Elisabeth Kjelsvik; Valeur, Jørgen; Hausken, Trygve & Gilja, Odd Helge (2020). Postprandial symptoms in patients with functional dyspepsia and irritable bowel syndrome: relations to ultrasound measurements and psychological factors. Journal of Neurogastroenterology and Motility. ISSN 2093-0879. 26(1), p. 96–105. doi: 10.5056/jnm19072.
• Bjørkhaug, Steinar Traae; Neupane, Sudan Prasad; Bramness, Jørgen Gustav; Aanes, Håvard; Skar, Viggo Øystein & Medhus, Asle Wilhelm [Show all 7 contributors for this article] (2019). Plasma cytokine levels in patients with chronic alcohol overconsumption: relations to gut microbiota markers and clinical correlates. Alcohol. ISSN 0741-8329. 85, p. 35–40. doi: 10.1016/j.alcohol.2019.10.002. Show summary

  BACKGROUND: Alcohol-related morbidity may involve changes in the gut microbiota and immune dysregulation. We have previously demonstrated alterations in gut microbiota composition and functions in patients with alcohol overconsumption, and now aimed to investigate possible associations between cytokine levels, gut microbiota and clinical symptoms. METHODS: We included hospital inpatients with a history of chronic alcohol overconsumption. For comparison, we included control patients with a low alcohol intake. Cytokine levels (TGF-β1, TNF-α, IL-10, IL-8, IL-6, IFN-γ, MCP-1, IL-1RA, IL-1β and IL-17) were determined using a customized V-plex assay. We then examined associations of cytokine levels with the abundance of Proteobacteria and Faecalibacterium, percentage of the short-chain fatty acid butyrate, psychiatric symptoms (Hospital Anxiety and Depression Scale) and biochemical liver variables. RESULTS: We included 28 patients with alcohol overconsumption (79% men), and 25 control patients (72% men). Patients with alcohol overconsumption had higher levels of IL-6 (p = 0.002), IFN-γ (p = 0.018) and MCP-1 (p = 0.006), and lower levels of TGF-β1 (p = 0.017) compared with control patients. Inverse correlations were found between Proteobacteria abundance and TNF-α (Rs = -0.55, p = 0.02) and IL-8 (Rs = -0.58, p = 0.014), and between Faecalibacterium and MCP-1 levels (Rs = -0.56, p = 0.02) in the control patients, but not in patients with alcohol overconsumption. Patients with alcohol overconsumption reported more psychiatric symptoms, and these symptoms were inversely correlated with IL-10 levels. There were positive correlations between several of the assessed cytokines and biochemical liver variables, and negative correlations between cytokine levels and albumin. CONCLUSION: Patients with alcohol overconsumption had a cytokine profile suggestive of increased systemic inflammatory activity, with higher levels of pro-inflammatory cytokines (IL-6, IFN-γ and MCP-1) and lower levels of anti-inflammatory cytokines (TGF-β1). The findings may represent a link between alcohol use and alcohol-related morbidity. Copyright © 2019 Elsevier Inc. All rights reserved. KEYWORDS: HADS; alcoholism; immune system; inflammation

• Farup, Per Grønaas; Lydersen, Stian & Valeur, Jørgen (2019). Are Nonnutritive Sweeteners Obesogenic? Associations between Diet, Faecal Microbiota, and Short-Chain Fatty Acids in Morbidly Obese Subjects. Journal of Obesity. ISSN 2090-0708. 2019, p. 1–8. doi: 10.1155/2019/4608315. Full text in Research Archive Show summary

  Obesity has been associated with changes in the gut microbiota and its metabolites. The study explored changes in the faecal microbiota and short-chain fatty acids (SCFA) associated with the diet (including nonnutritive sweeteners (NNSs)) and evaluated metabolic consequences in subjects with morbid obesity. The diet was assessed with a validated food frequency questionnaire. One unit of NNSs was 100 mL beverage with NNSs or 2 tablets/teaspoons of NNSs. The faecal microbiota was assessed with GA-map® dysbiosis test and SCFA with gas chromatography and flame ionisation detection. Fourteen men and 75 women with a mean age of 44.6 (SD 8.7) years, BMI 41.8 (SD 3.6) kg/m2, and intake of NNSs 7.5 units/day (SD 3.2; range 0-43) were included. Faecal butyric acid was positively and negatively associated with the intake of starch (partial correlation = 0.264; p=0.015) and NNSs (partial correlation = -0.274; p=0.011), respectively. NNSs were associated with changes in four out of 39 bacterial groups. Butyric acid has antiobesogenic effects, reduces insulin resistance, and improves dyslipidaemia. Since the weight-reducing effect of NNSs on obese adults trying to lose weight is dubious, it seems imprudent to use NNSs that might counteract the favourable effects of butyric acid.

• Dale, Hanna Fjeldheim; Jensen, Caroline; Hausken, Trygve; Hatlebakk, Jan Gunnar; Brønstad, Ingeborg & Valeur, Jørgen [Show all 8 contributors for this article] (2019). Effects of a Cod Protein Hydrolysate Supplement on Symptoms, Gut Integrity Markers and Fecal Fermentation in Patients with Irritable Bowel Syndrome. Nutrients. ISSN 2072-6643. 11:1635(7), p. 1–13. doi: 10.3390/nu11071635. Full text in Research Archive
• Mazzawi, Tarek; Hausken, Trygve; Hov, Johannes Espolin Roksund; Valeur, Jørgen; Sangnes, Dag André & El-Salhy, Magdy [Show all 9 contributors for this article] (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. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 54(6), p. 690–699. doi: 10.1080/00365521.2019.1624815. Full text in Research Archive
• Kristensen, Vendel Ailin; Valeur, Jørgen; Brackmann, Stephan; Jahnsen, Jørgen; Brunborg, Cathrine & Tveito, Kari (2019). Attention deficit and hyperactivity disorder symptoms respond to gluten-free diet in patients with coeliac disease. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 54(5), p. 571–576. doi: 10.1080/00365521.2019.1608467.
• Bjørkhaug, Steinar Traae; Aanes, Håvard; Neupane, Sudan Prasad; Bramness, Jørgen Gustav; Malvik, Stine & Henriksen, Christine [Show all 9 contributors for this article] (2019). Characterization of gut microbiota composition and functions in patients with chronic alcohol overconsumption. Gut microbes. ISSN 1949-0976. 10(6), p. 663–675. doi: 10.1080/19490976.2019.1580097. Full text in Research Archive

View all works in Cristin

• Jensen, Caroline; Martinsen, Tilde Kristine; Valeur, Jørgen; Nygård, Ottar Kjell & Lied, Gülen Arslan (2024). Gastrointestinal symptoms and associations with faecal SCFAs and dietary intake in older adults - results from the Hordaland Health Studie 3.
• Rosman, Mari; Lundin, Knut & Valeur, Jørgen (2024). Tarmen din lekker. Fordøyelsen. ISSN 0808-4297. p. 25–27.
• Valeur, Jørgen (2024). Noe å tygge på. NGF-nytt. ISSN 0809-6570. 31(2), p. 34–34.
• Valeur, Jørgen (2024). Pytonslangens prandiale pekuliaritet. NGF-nytt. ISSN 0809-6570. 31(1), p. 44–44.
• Valeur, Jørgen (2024). Web Exclusive. Annals Graphic Medicine - Remnants of Breaking Bad News. Annals of Internal Medicine. ISSN 0003-4819. 177(2). doi: 10.7326/G23-0006.
• Halsne, Ruth & Valeur, Jørgen (2024). Nanomateriale med karbon brytes ned av bakterier i tarmen. Tidsskrift for Den norske legeforening. ISSN 0029-2001. doi: 10.4045/tidsskr.23.0841.
• Sollund, Adrian & Valeur, Jørgen (2024). Omstridt IBS-diett hjalp Cecilie. [Newspaper]. Dagbladet.
• Bekkelund, Mattis; Sangnes, Dag André; Valeur, Jørgen & Hatlebakk, Jan Gunnar (2023). Nausea associated to subsegmental intestinal hypomotility in diabetic gastroenteropathy.
• Valeur, Jørgen (2023). Forsideillustrasjon til NGF-nytt nr. 4 2023.
• Valeur, Jørgen (2023). Kulemage. NGF-nytt. ISSN 0809-6570. 30(4), p. 40–40.
• Valeur, Jørgen (2023). Brosjyre om irritabel tarm-syndrom.
• Valeur, Jørgen (2023). Vampyrmage. NGF-nytt. ISSN 0809-6570. 30(3), p. 34–35.
• Valeur, Jørgen (2023). Funksjonelle lidelser i øvre GI-traktus.
• Valeur, Jørgen (2023). Illustrasjoner til boken Steinsvik EK, Larsen CH, Hausken T. Skitt la gå. Løst og fast om plager, sykdom og resten av tarmens forunderlige liv.
• Bergseth, Wilma; Garnås, Eirik; Hatlebakk, Jan Gunnar & Valeur, Jørgen (2023). Expert: Så kan viss kost minska IBS-symtom. [Internet]. Aftonbladet.
• Bergseth, Wilma; Garnås, Eirik; Hatlebakk, Jan Gunnar & Valeur, Jørgen (2023). IBS-funn: − Kan gi betydelig symptomreduksjon. [Internet]. VG.
• Juul, Frederik Emil; Hov, Johannes Espolin Roksund; Trøseid, Marius; Johnsen, Peter Holger & Valeur, Jørgen (2023). Tarmflora og tarmsykdom – en edruelig formaning. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 143(10), p. 849–850. doi: 10.4045/tidsskr.23.0121.
• Valeur, Jørgen (2023). Å puste med magen. NGF-nytt. ISSN 0809-6570. 30(2), p. 36–36.
• Valeur, Jørgen (2023). Strutsens stålmage. NGF-nytt. ISSN 0809-6570. 30(1), p. 54–54.
• Strøm, Anne-Karine & Valeur, Jørgen (2023). Derfor er tarmen så viktig for helsen. [Journal]. Vi over 60.
• Årdal, Ingrid G.; Jakobsen, Celina; Zinöcker, Marit; Valeur, Jørgen & Villmones, Heidi Cecilie (2023). Celina (27) har hatt laus mage i ni år – så endra ho kosthaldet. [Internet]. nrk.no.
• Sangnes, Dag André; Engjom, Trond; Løvaas, Kristian; Berentsen, Birgitte; Softeland, Eirik & Dimcevski, Georg Gjorgji [Show all 19 contributors for this article] (2023). Epidemiologi og patofysiologi ved diabetisk diaré (DIAREPA).
• Hansen, Simen Hyll; Gjerstad Maseng, M; Bjørkqvist, O; Halfvarsson, J; Bang, C & Detlie, Trond Espen [Show all 23 contributors for this article] (2023). Gut microbiota at diagnosis is associated with clinical features and future disease course in Inflammatory Bowel Disease: Data from IBSEN III, a new large Norwegian population-based inception cohort. Journal of Crohn's and Colitis. ISSN 1873-9946. 17, p. i1028–I2029. doi: 10.1093/ecco-jcc/jjac190.1050.
• Zerouga, Insaf; Sommer, Christine; Carlsen, Monica Hauger; Valeur, Jørgen; Kristensen, Vendel Ailin & Høivik, Marte Lie [Show all 8 contributors for this article] (2023). Kosthold og ernæringsstatus ved nydiagostisert IBD: resultater fra IBSEN III.
• Valeur, Jørgen (2022). Forsideillustrasjon til NGF-nytt nr. 4 2022.
• Valeur, Jørgen (2022). Maur i magen. NGF-nytt. ISSN 0809-6570. 29(4), p. 38–39.
• Valeur, Jørgen (2022). Mikrobiota - tarmflora.
• Valeur, Jørgen (2022). Engastrasjon. NGF-nytt. ISSN 0809-6570. 29(3), p. 38–38.
• Valeur, Jørgen (2022). Soppenes planet. Michael. ISSN 1893-9651. 19(4), p. 409–410.
• Roos, Merethe; Lillestøl, Kristine & Valeur, Jørgen (2022). Dr. Sopp: Markant mykolog - og mye mer. Michael. ISSN 1893-9651. 19(4), p. 333–335.
• Teige, Erica Sande; Hillestad, EM; Steinsvik, Elisabeth Kjelsvik; Brønstad, Ingeborg; Bjørkevoll, M & Gaassand Straume, Mariell [Show all 14 contributors for this article] (2022). Bergen Braingut Study: Relations between fecal microbiota profile and its metabolites (short-chain fatty acids) and symptoms in irritable bowel syndrome.
• Teige, Erica Sande; Hillestad, Eline Margrete Randulff; Steinsvik, Elisabeth Kjelsvik; Brønstad, Ingeborg; Bjørkevoll, M & Gaassand Straume, Mariell [Show all 14 contributors for this article] (2022). Bergen Braingut Study: Relations between fecal microbiota profile and its metabolites (short-chain fatty acids) and symptoms in irritable bowel syndrome. United European Gastroenterology Journal (UEG Journal). ISSN 2050-6406. 10, p. 412–412.
• Valeur, Jørgen (2022). Urtarmdyret. NGF-nytt. ISSN 0809-6570. 29(2), p. 42–42.
• Ankarstrand, Susanne & Valeur, Jørgen (2022). Apokus: E-læringskurs for apotekansatte (MA110 Tarmsykdommer).
• Valeur, Jørgen (2022). Firkantmysteriet. NGF-nytt. ISSN 0809-6570. 29(1), p. 58–58.
• Simonsen, Michael; Villmones, Heidi Cecilie; Valeur, Jørgen; Husebye, Einar & Hov, Johannes Espolin Roksund (2022). - Studien kan gi ny innsikt i kroniske tarmplager. [Internet]. Dagens Medisin.
• Valeur, Jørgen (2021). Forsideillustrasjon til NGF-nytt nr. 4 2021.
• Valeur, Jørgen (2021). Dovendyrets dobesøk. NGF-nytt. ISSN 0809-6570. 28(4), p. 34–34.
• Stø, Kristine; Valeur, Jørgen; Ueland, Thor; Malmstrøm, Gunn Helen; Bjerkeli, Vigdis & Kazmi, Syed Sajid Hussain [Show all 10 contributors for this article] (2021). Increased fecal levels of the SCFA butyrate may indicate poor absorption due to disrupted gut barrier in patients with carotid stenosis.
• Herfindal, Anne Mari; van Megen, Frida; Gilde, Mari Christine Overvik; Valeur, Jørgen; Rudi, Knut & Skodje, Gry Irene [Show all 9 contributors for this article] (2021). Effects of low-FODMAP diet on gut microbiota in individuals with treated celiac disease having persistent gastrointestinal symptoms.
• Valeur, Jørgen (2021). Middelaldersk magetømmingstest. NGF-nytt. ISSN 0809-6570. 28(3), p. 48–48.
• El-Salhy, Magdy; Casén, Christina; Valeur, Jørgen; Hausken, Trygve & Hatlebakk, Jan Gunnar (2021). Responses to faecal microbiota transplantation in female and male patients with irritable bowel syndrome.
• El-Salhy, Magdy; Casén, Christina; Valeur, Jørgen; Hausken, Trygve & Hatlebakk, Jan Gunnar (2021). Responses to faecal microbiota transplantation in female and male patients with irritable bowel syndrome. United European Gastroenterology Journal (UEG Journal). ISSN 2050-6406. 9(S8), p. 635–636.
• Lillestøl, Kristine & Valeur, Jørgen (2021). Gastroptose. NGF-nytt. ISSN 0809-6570. 28(2), p. 20–22.
• Valeur, Jørgen (2021). Funksjonelle lidelser i øvre GI-traktus.
• Valeur, Jørgen (2021). Frosk i magen. NGF-nytt. ISSN 0809-6570. 28(1), p. 45–45.
• Lamøy, Berith Eva; Somby, Caroline; Valeur, Jørgen; Fadnes, Lars T. & Ebeltoft, Marit (2021). Caroline (26) byttet til lavkarbo: – Nå er magen fin. [Internet]. Norsk Ukeblad.
• Valeur, Jørgen; Hausken, Trygve; Hatlebakk, Jan Gunnar; Lied, Gülen Arslan; Folvik, Geir & Lillestøl, Kristine [Show all 11 contributors for this article] (2021). Minneord: Arnold Berstad (1940-2020). Tidsskrift for Den norske legeforening. ISSN 0029-2001. 141(3), p. 293–293.
• Teige, Eirik Persson; Hillestad, Eline Margrete Randulff; Berentsen, Birgitte; Steinsvik, Elisabeth Kjelsvik; Brønstad, Ingeborg & Hausken, Trygve [Show all 9 contributors for this article] (2021). Kort- og langtidseffekten av lav FODMAP-dietten på symptomer og kortkjedede fettsyrer hos pasienter med irritabel tarmsyndrom.
• Valeur, Jørgen (2020). Den mekaniske and. NGF-nytt. ISSN 0809-6570. 27(4), p. 31–31.
• Valeur, Jørgen (2020). Forsideillustrasjon til NGF-nytt nr. 4 2020.
• Byklum, Kari; Valeur, Jørgen; Mjølstad, Bente Prytz & Sundtoft, Tine (2020). Kvitt deg med luften i magen. [Journal]. Norsk ukeblad.
• Teige, Erica Persson; Berentsen, Birgitte; Brønstad, Ingeborg; Hausken, Trygve; Hatlebakk, Jan Gunnar & Valeur, Jørgen [Show all 7 contributors for this article] (2020). Short and extended effects of a low FODMAP diet on symptoms and short-chained fatty acids in patients with irritable bowel syndrome.
• Valeur, Jørgen (2020). Will it float? NGF-nytt. ISSN 0809-6570. 27(3), p. 35–35.
• El-Salhy, Magdy; Kristoffersen, Anja Bråthen; Valeur, Jørgen; Casén, Christina; Hatlebakk, Jan Gunnar & Gilja, Odd Helge [Show all 7 contributors for this article] (2020). Long-term effects of faecal microbiota transplantation (FMT) in patients with irritable bowel syndrome.
• El-Salhy, Magdy; Kristoffersen, Anja Bråthen; Valeur, Jørgen; Casén, Christina; Hatlebakk, Jan Gunnar & Gilja, Odd Helge [Show all 7 contributors for this article] (2020). Long-term effects of faecal microbiota transplantation (FMT) in patients with irritable bowel syndrome. United European Gastroenterology Journal (UEG Journal). ISSN 2050-6406. p. 46–46.
• Birkeland, Eline; Gharagozlian, Sedegheh; Birkeland, Kåre I.; Valeur, Jørgen; Måge, Ingrid & Rud, Ida [Show all 7 contributors for this article] (2020). Correction to: Prebiotic effect of inulin‑type fructans on faecal microbiota and short‑chain fatty acids in type 2 diabetes: a randomised controlled trial. European Journal of Nutrition. ISSN 1436-6207. doi: 10.1007/s00394-020-02314-0.
• Valeur, Jørgen (2020). Paris' mage. NGF-nytt. ISSN 0809-6570. 27(2), p. 28–28.
• El-Salhy, Magdy; Valeur, Jørgen; Hausken, Trygve & Hatlebakk, Jan Gunnar (2020). Changes in fecal short-chain fatty acids (SCFA) following fecal microbiota transplantation (FMT) in patients with irritable bowel syndrome (IBS). Neurogastroenterology and Motility. ISSN 1350-1925. 32. doi: 10.1111/nmo.13817.
• Valeur, Jørgen (2020). Spiraltarm. NGF-nytt. ISSN 0809-6570. 27(1), p. 44–44.
• Valeur, Jørgen (2019). Kamelens mage. NGF-nytt. ISSN 0809-6570. 26(4), p. 24–25.
• Valeur, Jørgen (2019). Forsideillustrasjon til NGF-nytt nr. 4 2019.
• Valeur, Jørgen (2019). Strupesekk. NGF-nytt. ISSN 0809-6570. 26(3), p. 32–32.
• Edin, Julia Døhlen & Valeur, Jørgen (2019). Når avføring selges som mirakelkur. Fordøyelsen. ISSN 0808-4297. p. 18–19.
• Gaarder, Jorun; Lindberg, Fedon & Valeur, Jørgen (2019). - Slik ble jeg kvitt IBS. [Newspaper]. Dagbladet.
• Juul, Frederik Emil & Valeur, Jørgen (2019). Tilsvar til Frøland SS. Fekaltransplantasjon og mikrobiom. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 139(11), p. 1020–1020.
• Valeur, Jørgen (2019). Honningmage. NGF-nytt. ISSN 0809-6570. 26(2), p. 30–30.
• Juul, Frederik Emil & Valeur, Jørgen (2019). Tarmflorabehandling. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 139(9), p. 859–859. doi: 10.4045/tidsskr.19.0058.
• Farup, Per Grønaas; Lydersen, Stian & Valeur, Jørgen (2019). Are non-nutritive sweeteners obesogenic by altering the faecal microbiota and their metabolites?
• Farup, Per Grønaas & Valeur, Jørgen (2019). Are non-nutritive sweeteners obesogenic by altering fecal short-chain fatty acids?
• Valeur, Jørgen (2019). Toalett i særklasse. NGF-nytt. ISSN 0809-6570. 26(1), p. 37–37.
• Juul, Frederik Emil & Valeur, Jørgen (2019). Snille bakterier finnes ikke. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 139(6), p. 504–505. doi: 10.4045/tidsskr.19.0134.
• Mazzawi, Tarek; Hausken, Trygve; Hov, Johannes Espolin Roksund; Valeur, Jørgen; Sangnes, Dag André & El-Salhy, Magdy [Show all 9 contributors for this article] (2019). Effect of faecal microbiota transplantation on gut microenvironment and symptoms in patients with irritable bowel syndrome.
• Kristensen, Vendel Ailin; Valeur, Jørgen; Brackmann, Stephan; Jahnsen, Jørgen & Tveito, Kari (2019). Kognitive symptomer hos pasienter med cøliaki før og etter glutenfri kost.
• Soares, Jelena Zugic; Bogdanovic, Nenad; Pettersen, Renate Regine; Selbæk, Geir & Valeur, Jørgen (2023). Vitamin D in cognitive impairment and Alzheimer`s disease. Universitetet i Oslo. ISSN 9788234802416.
• Bjørkhaug, Steinar Traae; Valeur, Jørgen; Bramness, Jørgen Gustav & Lien, Lars (2020). Alcohol-related alterations of the gut microbial flora. Universitetet i Oslo.

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