• Clinical characterization of Helicobacter pylori infected patients 15 years after unsuccessful eradication 

      Nestegard, Oddmund; Johnsen, Kay-Martin; Sørbye, Sveinung; Halvorsen, Fred-Arne; Tønnessen, Tor; Paulssen, Eyvind Jakob; Melby, Kjetil K.; Goll, Rasmus; Florholmen, Jon (Journal article; Tidsskriftartikkel, 2020-09-23)
      <i>Background and aims</i> - Patients that have failed therapy for Helicobacter pylori (H. pylori) infection are incompletely characterized. The aim of this study was to characterize a H. pylori treatment resistant cohort compared to the cohorts of newly diagnosed, earlier eradicated and non-infected.<p> <p><i>Material and methods</i> - Patients were selected from routine referrals to the Endoscopy ...
    • Colonic distribution of FMT by different enema procedures compared to colonoscopy – proof of concept study using contrast fluid 

      Skjevling, Linn; Hanssen, Hege Marie; Valle, Per Christian; Goll, Rasmus; Juul, Frederik Emil; Arlov, Øystein; Johnsen, Peter Holger (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-23)
      Background Fecal microbiota transplantation (FMT) has become an important treatment method in recurrent Clostridioides difficile infections and is under investigation as a treatment for several other diseases. FMT’s mechanism of action is assumed to be through alterations of the colon microbiota. FMT can be delivered by several methods, but few studies have directly compared how FMT is distributed ...
    • A comparison of Health Related Quality of Life in nurse-led versus conventional Inflammatory Bowel Disease follow-up. 

      Alvestad, Line; Jelsness-Jørgensen, Lars-Petter; Goll, Rasmus; Clancy, Anne; Valle, Per Christian; Broderstad, Ann Ragnhild (Conference object; Konferansebidrag, 2018)
    • Correlations between modest weight loss and leptin to adiponectin ratio, insulin and leptin resensitization in a small cohort of Norwegian individuals with obesity 

      Isaksen, Victoria Therese; Larsen, Maria; Goll, Rasmus; Paulssen, Eyvind Jakob; Florholmen, Jon (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-02)
      Background - Weight loss is important to reduce the risk of metabolic complications in obese individuals, in whom dysregulated adipokines play a central role. This study aims to investigate whether dysregulated adipokines and postprandial triglycerides (TG) improve with a modest weight loss.<p> <p>Methods - Individuals with obesity (BMI ≥ 30 kg/m2) were recruited among patients at the University ...
    • Could Mucosal TNF Transcript as a Biomarker Candidate Help Optimize Anti-TNF Biological Therapy in Patients With Ulcerative Colitis? 

      Cui, Guanglin; Florholmen, Jon; Goll, Rasmus (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-19)
      Anti-tumor necrosis factor (TNF) biological therapy has generally been accepted as a standard therapeutic option in inflammatory bowel disease (IBD) patient who are refractory to steroids or immunomodulators. However, the primary and secondary nonresponse rates to anti-TNF bioagents in patients with IBD are high. To improve the response rate, anti-TNF bioagents must be offered to the appropriate ...
    • Delayed clearance of triglyceride-rich lipoproteins in young, healthy obese subjects 

      Larsen, Maria Arlén; Goll, Rasmus; Lekhal, Samira; Moen, Odd S.; Florholmen, Jon (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-15)
      Obesity is associated with the metabolic syndrome. The aims were, first, to study the postprandial triglyceride clearance in young, healthy obese subjects and, second, to investigate if fasting triglycerides can predict delayed postprandial triglyceride clearance. Eighteen apparently healthy, obese subjects with no clinical signs of metabolic disturbances participated. Controls were age‐ and ...
    • Discovery and validation of mucosal TNF expression combined with histological score-a biomarker for personalized treatment in ulcerative colitis 

      Florholmen, Jon; Johnsen, Kay-Martin; Meyer, Renate; Olsen, Trine; Moe, Øystein Kittel; Tandberg, Petter; Gundersen, Mona Dixon; Kvamme, Jan-Magnus; Johnsen, Knut; Løitegård, Terje; Raschpichler, Gabriele; Vold, Cecilia; Sørbye, Sveinung; Goll, Rasmus (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-02)
      <i>Background</i> - There are no accurate markers that can predict clinical outcome in ulcerative colitis at time of diagnosis. The aim of this study was to explore a comprehensive data set to identify and validate predictors of clinical outcome in the first year following diagnosis.<p> <p><i>Methods</i> - Treatment naive-patients with ulcerative colitis were included at time of initial diagnosis ...
    • Dynamics of the IL-33/ST2 network in the progression of human colorectal adenoma to sporadic colorectal cancer 

      Guanglin, Cui; Qi, Haili; Gundersen, Mona Dixon; Yang, Hang; Christiansen, Ingrid B; Sørbye, Sveinung Wergeland; Goll, Rasmus; Florholmen, Jon (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-10-17)
      Most sporadic colorectal cancers (CRCs) develop from preformed adenomas. Cytokines are involved in the transition from adenoma to CRC. Interleukin-33 (IL-33) is a newly discovered proinflammatory cytokine belonging to the IL-1 cytokine family and involved in the development of chronic inflammation and cancer. The aim of this study was to evaluate the dynamics of the IL-33/ST2 axis during the sequence ...
    • The effect of fecal microbiota transplantation on IBS related quality of life and fatigue in moderate to severe non-constipated irritable bowel: Secondary endpoints of a double blind, randomized, placebo-controlled trial 

      Johnsen, Peter Holger; Hilpüsch, Frank; Valle, Per Christian; Goll, Rasmus (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-23)
      <i>Background</i> - Severity in irritable bowel syndrome (IBS) is associated to impaired quality of life and fatigue. Fecal microbiota transplantation (FMT) induces significant relief in gastro-intestinal related complaints. The objective was to evaluate the effect of FMT on the secondary endpoints: IBS-related quality of life and fatigue in patients with non-constipated IBS.<p><p> <i>Method</i> ...
    • Effect of the baseline Y93H resistance-associated substitution in HCV genotype 3 for direct-acting antiviral treatment: real-life experience from a multicenter study in Sweden and Norway 

      Kjellin, Midori; Kileng, Hege; Akaberi, Dario; Palanisamy, Navaneethan; Duberg, Ann-Sofi; Danielsson, Astrid; Kristiansen, Magnhild Gangsøy; Nöjd, Johan Edvin; Aleman, Soo; Gutteberg, Tore Jarl; Goll, Rasmus; Lannergård, Anders; Lennerstrand, Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-19)
      <i>Background</i>: The NS5A resistance-associated substitution (RAS) Y93H is found quite frequently (5–10%) at baseline in direct-acting antiviral agents (DAA) treatment-naïve genotype (GT) 3a patients when studied by the population-sequencing method (cut-off 20%). This RAS may impair HCV DAA treatment response, since it possesses a high fold <i>in vitro</i> resistance to daclatasvir (DCV) and ...
    • Effects of fecal microbiota transplantation in subjects with irritable bowel syndrome are mirrored by changes in gut microbiome 

      Goll, Rasmus; Johnsen, Peter Holger; Hjerde, Erik; Diab, Joseph; Valle, Per Christian; Hilpüsch, Frank; Cavanagh, Jorunn Pauline (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-29)
      Irritable bowel syndrome (IBS) is a common disorder of the lower gastrointestinal tract. The pathophysiology is far from settled, but a gut microbial dysbiosis is hypothesized to be a contributing factor. We earlier published a randomized double-blind placebo-controlled clinical trial on fecal microbiota transplantation (FMT) for IBS – the REFIT trial. The present data set describes the engraftment ...
    • Evaluation of absolute quantitation by nonlinear regression in probe-based real-time PCR 

      Olsen, Trine; Goll, Rasmus; Florholmen, Jon; Cui, Guanglin (Journal article; Tidsskriftartikkel; Peer reviewed, 2006-03-03)
      Background In real-time PCR data analysis, the cycle threshold (CT) method is currently the gold standard. This method is based on an assumption of equal PCR efficiency in all reactions, and precision may suffer if this condition is not met. Nonlinear regression analysis (NLR) or curve fitting has therefore been suggested as an alternative to the cycle threshold method for absolute quantitation. ...
    • Fibrosis Mediators in the Colonic Mucosa of Acute and Healed Ulcerative Colitis 

      Gundersen, Mona Dixon; Goll, Rasmus; Fenton, Christopher Graham; Anderssen, Endre; Sørbye, Sveinung Wergeland; Florholmen, Jon; Paulssen, Ruth H (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-03)
      <i>OBJECTIVES</i>: A healed intestinal mucosa is the aim of therapy in acute ulcerative colitis (UC). Disruption of mucosal wound healing may lead to severe complications including intestinal fibrosis. This study examined mucosal gene expression in the healing process of acute UC with a special focus on known mediators of fibrosis.<p> <p><i>METHODS</i>: Endoscopic biopsies from patients with ...
    • Future complications of chronic hepatitis C in a low-risk area: Projections from the hepatitis c study in Northern Norway 

      Kileng, Hege; Bernfort, Lars; Gutteberg, Tore Jarl; Moen, Odd Sverre; Kristiansen, Magnhild Gangsøy; Paulssen, Eyvind Jakob; Berg, Leif Kyrre; Florholmen, Jon; Goll, Rasmus (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-16)
      <i>Background</i>: Hepatitis C (HCV) infection causes an asymptomatic chronic hepatitis in most affected individuals, which often remains undetected until cirrhosis and cirrhosis-related complications occur. Screening of high-risk subjects in Northern Norway has revealed a relatively low prevalence in the general population (0.24%). Despite this, late complications of HCV infection are increasing. ...
    • Head to head comparison of two commercial fecal calprotectin kits as predictor of Mayo endoscopic sub-score and mucosal TNF expression in ulcerative colitis 

      Goll, Rasmus; Heitmann, Richard; Moe, Øystein Kittel; Katrine, Carlsen; Florholmen, Jon (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-02)
      <i>Background</i> - Fecal calprotectin is widely used to monitor disease activity in patients with inflammatory bowel disease. Multiple commercial kits exist, however, since the analyses are not standardized, these kits cannot be used interchangeably. We aimed to perform a technical evaluation of two kits (Calpro from Calprolab, Norway and Calprest from Eurospital, Italy) and perform a tuning for ...
    • Health-related quality of life in inflammatory bowel disease: a comparison of patients receiving nurse-led versus conventional follow-up care 

      Alvestad, Line; Jelsness-Jørgensen, Lars-Petter; Goll, Rasmus; Clancy, Anne Mary Gerard; Gressnes, Thomas; Valle, Per Christian; Broderstad, Ann Ragnhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-31)
      Background - Inflammatory bowel disease (IBD), consisting of Crohn's disease (CD) and ulcerative colitis (UC), is a chronic disorder with a considerable negative impact on health-related quality of life (HRQoL). During the past decade, IBD nurse specialists have been increasingly involved in follow-up care of IBD outpatients, in a consultative and coordinating role, closely cooperating with ...
    • Helicobacter pylori resistance to antibiotics before and after treatment: Incidence of eradication failure 

      Nestegard, Oddmund; Moayeri, Behrouz; Halvorsen, Fred-Arne; Tønnesen, Tor; Paulssen, Eyvind Jakob; Johnsen, Kay-Martin; Goll, Rasmus; Florholmen, Jon; Melby, Kjetil K. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-20)
      Background <p>Increasing prevalence of antibiotic resistance especially to clarithromycin and metronidazole has been observed in Helicobacter pylori (H. pylori). <p>Aim <p>To characterize the antimicrobial resistance pattern of H. pylori before and after treatment in a cohort of patients accumulated over a period of 15 years after an unsuccessful eradication treatment had been given comparing ...
    • Hepatic Steatosis detected by Hepatorenal Index in Ultrasonography as a Predictor of Insulin Resistance in Obese Subjects 

      Isaksen, Victoria Therese; Larsen, Maria Arlen; Goll, Rasmus; Florholmen, Jon; Paulssen, Eyvind Jakob (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-20)
      BACKGROUND: The metabolic syndrome is a worldwide health issue, with non-alcoholic fatty liver disease (liver steatosis) being one of its features, particularly closely related to insulin resistance. This study aims to investigate whether quantification of hepatic steatosis by abdominal ultrasonography, using hepatorenal index, is a feasible tool for the prediction of insulin resistance, and thus ...
    • Hypo-osmotic stress induces the epithelial alarmin IL-33 in the colonic barrier of ulcerative colitis 

      Gundersen, Mona Dixon; Larsen, Kenneth Bowitz; Johnsen, Kay-Martin; Goll, Rasmus; Florholmen, Jon; Haraldsen, Guttorm (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-07)
      Epithelial alarmins are gaining interest as therapeutic targets for chronic infammation. The nuclear alarmin interleukin-33 (IL-33) is upregulated in the colonic mucosa of acute ulcerative colitis (UC) and may represent an early instigator of the infammatory cascade. However, it is not clear what signals drive the expression of IL-33 in the colonic mucosa, nor is the exact role of IL-33 elucidated. We ...
    • The impact of partial hepatectomy on oxidative state in the liver remnant - An in vivo swine model 

      Florholmen-Kjær, Åse; Goll, Rasmus; Fuskevåg, Ole-Martin; Nygård, Ingvild; Paulssen, Ruth H; Revhaug, Arthur; Mortensen, Kim Erlend (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-24)
      Background Previous studies on oxidative state after partial hepatectomy (PHx) report conflicting data on levels of glutathione (GSH) and are mainly presented in rodent models by methodology less sensitive than the present technologies. The current swine model presents GSH levels and the following genetic response post-PHx, utilizing an analytical platform more sensitive and precise than earlier ...