Blar i Bergen Open Research Archive på forfatter "Lied, Gülen Arslan"
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Abnormal Uroguanylin Immunoreactive Cells Density in the Duodenum of Patients with Diarrhea-Predominant Irritable Bowel Syndrome Changes following Fecal Microbiota Transplantation
Mazzawi, Tarek; Eikrem, Øystein Solberg; Lied, Gülen Arslan; Hausken, Trygve (Journal article; Peer reviewed, 2020)Altered densities of enteroendocrine cells play an important role in patients with irritable bowel syndrome (IBS). Uroguanylin activates guanylate cyclase-C to regulate intestinal electrolyte and water transport. Aim. To ... -
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
Dale, Hanna Fjeldheim; Jensen, Caroline; Hausken, Trygve; Lied, Einar; Hatlebakk, Jan Gunnar; Brønstad, Ingeborg; Hoff, Dag Arne Lihaug; Lied, Gülen Arslan (Peer reviewed; Journal article, 2019-10-22)Background: Fish protein hydrolysates are suggested to contain bioactive sequences capable of affecting metabolic pathways involved in the regulation of glucose metabolism and body weight when consumed in low doses. ... -
Altered levels of cytokines in patients with irritable bowel syndrome are not correlated with fatigue
Vara, Ellen Johanne; Brokstad, Karl Albert; Hausken, Trygve; Lied, Gülen Arslan (Peer reviewed; Journal article, 2018-07-06)Introduction: A considerable number of patients with gastrointestinal complaints attributable to irritable bowel syndrome (IBS) have shown evidence of immune activation. Fatigue is also frequently reported by IBS patients ... -
Assessment of markers of gut integrity and inflammation in non-celiac gluten sensitivity after a gluten free-diet
Dale, Hanna Fjeldheim; Johannessen, Julianne Cecilie Høibak; Brønstad, Ingeborg; Lied, Gülen Arslan (Journal article; Peer reviewed, 2021)Purpose: Markers for gut integrity and inflammation have received increasing interest as intestinal permeability and innate immune system activation are suggested as possible pathophysiological mechanisms in non-celiac ... -
Assessment of Self-Reported Executive Function in Patients with Irritable Bowel Syndrome Using a Machine-Learning Framework
Lundervold, Astri J.; Randulff Hillestad, Eline Margrethe; Lied, Gülen Arslan; Billing, Julie Eirin; Johnsen, Tina Emilie; Steinsvik, Elisabeth Kjelsvik; Hausken, Trygve; Jacobsen, Birgitte Berentsen; Lundervold, Arvid (Journal article; Peer reviewed, 2023)Introduction: Irritable bowel syndrome (IBS) is characterized as a disorder of the gut–brain interaction (DGBI). Here, we explored the presence of problems related to executive function (EF) in patients with IBS and tested ... -
Association between gastrointestinal complaints and psychopathology in patients with anorexia nervosa
Kessler, Ute; Rekkedal, Guro; Rø, Øyvind; Berentsen, Birgitte; Steinsvik, Elisabeth Kjelsvik; Lied, Gülen Arslan; Danielsen, Yngvild Sørebø (Journal article; Peer reviewed, 2020)Objective Gastrointestinal (GI) symptoms appear frequently in patients with anorexia nervosa (AN), but the associations between psychopathological, GI, and eating disorder (ED) symptoms remain unclear. This study aimed ... -
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
Mazzawi, Tarek; Hausken, Trygve; Hov, Johannes Espolin Roksund; Valeur, Jørgen; Sangnes, Dag André; El-Salhy, Magdy; Gilja, Odd Helge; Hatlebakk, Jan Gunnar; Lied, Gülen Arslan (Peer reviewed; Journal article, 2019)Objectives: Irritable bowel syndrome (IBS) may be associated with disturbances in gut microbiota composition and functions. We recently performed a study of fecal microbiota transplantation (FMT) in diarrhea-predominant ... -
Cognitive function in patients with irritable bowel syndrome: impairment is common and only weakly correlated with depression/anxiety and severity of gastrointestinal symptoms
Billing, Julie Eirin; Jacobsen, Birgitte Berentsen; Lundervold, Arvid; Randulff Hillestad, Eline Margrethe; Lied, Gülen Arslan; Hausken, Trygve; Lundervold, Astri J. (Journal article; Peer reviewed, 2024)Objective To investigate cognitive function in patients with irritable bowel syndrome (IBS) and its relation to anxiety/depression and severity of gastrointestinal (GI) symptoms. Methods Patients with IBS (n = 65) ... -
Dendritic cell populations in patients with self-reported food hypersensitivity
Lied, Gülen Arslan; Vogelsang, Petra; Berstad, Arnold; Appel, Silke (Peer reviewed; Journal article, 2011-05)Self-reported hypersensitivity to food is a common condition and many of these patients have indications of intestinal immune activation. Dendritic cells (DCs) are recognized as the most potent antigen-presenting cells ... -
Dendritic cell populations in patients with self-reported food hypersensitivity
Lied, Gülen Arslan; Vogelsang, Petra; Berstad, Arnold; Appel, Silke (Conference poster, 2010) -
Duodenal administered seal oil for patients with subjective food hypersensitivity: an explorative open pilot study
Gregersen, Kine; Lind, Ragna Anne; Valeur, Jørgen; Bjørkkjær, Tormod; Berstad, Arnold; Lied, Gülen Arslan (Peer reviewed; Journal article, 2010-12)Short-term duodenal administration of n-3 polyunsaturated fatty acid (PUFA)-rich seal oil may improve gastrointestinal complaints in patients with subjective food hypersensitivity, as well as joint pain in patients with ... -
Effect of a cod protein hydrolysate on postprandial glucose metabolism in healthy subjects: A double-blind cross-over trial
Dale, Hanna Fjeldheim; Jensen, Caroline; Hausken, Trygve; Lied, Einar; Hatlebakk, Jan Gunnar; Brønstad, Ingeborg; Hoff, Dag Arne Lihaug; Lied, Gülen Arslan (Peer reviewed; Journal article, 2018)The increased prevalence of lifestyle diseases, such as the metabolic syndrome and type 2 diabetes mellitus (T2DM), calls for more knowledge on dietary treatments targeting the specific metabolic pathways involved in these ... -
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
Mazzawi, Tarek; Hausken, Trygve; Hatlebakk, Jan Gunnar; Refsnes, Per; Lied, Gülen Arslan (Journal article; Peer reviewed, 2022)Fecal microbiota transplantation (FMT) from healthy donors has been shown to improve the symptoms of irritable bowel syndrome (IBS) and changes the profile of the gut microbiota for the recipients. Alternatively, anaerobically ... -
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
Jensen, Caroline; Dale, Hanna Fjeldheim; Hausken, Trygve; Hatlebakk, Jan Gunnar; Brønstad, Ingeborg; Lied, Gülen Arslan; Hoff, Dag Arne Lihaug (Journal article; Peer reviewed, 2020-11)Metabolic syndrome (MetS) is characterised by metabolic abnormalities that increase the risk of developing type 2 diabetes mellitus and cardiovascular disease. Altered levels of circulating ghrelin, several adipokines and ... -
Effects of a Cod Protein Hydrolysate Supplement on Symptoms, Gut Integrity Markers and Fecal Fermentation in Patients with Irritable Bowel Syndrome
Dale, Hanna Fjeldheim; Jensen, Caroline; Hausken, Trygve; Valeur, Jørgen; Hoff, Dag Arne Lihaug; Lied, Gülen Arslan (Peer reviewed; Journal article, 2019-07-17)Peptides from fish may beneficially affect several metabolic outcomes, including gut health and inflammation. The effect of fish peptides in subjects with irritable bowel syndrome (IBS) has not previously been investigated, ... -
The Effects of Fecal Microbiota Transplantation on the Symptoms and the Duodenal Neurogenin 3, Musashi 1, and Enteroendocrine Cells in Patients With Diarrhea-Predominant Irritable Bowel Syndrome
Mazzawi, Tarek; El-Salhy, Magdy; Lied, Gülen Arslan; Hausken, Trygve (Journal article; Peer reviewed, 2021)Introduction: Interactions between the gut microbiota and enteroendocrine cells play important role in irritable bowel syndrome (IBS). Reduced stem cell densities and their differentiation into enteroendocrine cells may ... -
Effects of Plant-Based Diets on Outcomes Related to Glucose Metabolism: A Systematic Review
Johannesen, Christina Osland; Dale, Hanna Fjeldheim; Jensen, Caroline; Lied, Gülen Arslan (Journal article; Peer reviewed, 2020)According to the rising prevalence of obesity and metabolic disorders leading to impaired glucose metabolism, effective strategies to prevent and/or delay the onset of disease are of great need. A plant-based diet has been ... -
Effects of plant-based diets on weight status: A systematic review
Tran, Elisabeth; Dale, Hanna Fjeldheim; Jensen, Caroline; Lied, Gülen Arslan (Journal article; Peer reviewed, 2020-09-30)There is an increasing number of people who convert to a plant-based diet. The desire for health benefits, including weight management, is often a contributing factor behind this dietary choice. The purpose of this review ... -
Effects of Seal Oil on Meal-Induced Symptoms and Gastric Accommodation in Patients with Subjective Food Hypersensitivity: A Pilot Study
Gregersen, Kine; Lind, Ragna Anne; Bjørkkjær, Tormod; Frøyland, Livar; Berstad, Arnold; Lied, Gülen Arslan (Peer reviewed; Journal article, 2008-11)Background: Food hypersensitivity is a prevalent condition with poorly characterized underlying mechanisms. In the present pilot study we investigated effects of seal oil and soy oil on meal-induced symptoms and gastric ... -
Forskningsveiledning - en av de essensielle faktorene på «veien til doktorgrad»
Lied, Gülen Arslan; Chen, Jian; Reikvam, Håkon (Peer reviewed; Journal article, 2013)The journey to finish a PhD thesis is a long race, and several factors may play important roles in this process. A good working relationship between the supervisor and the candidate is an essential component for achieving ...