Blar i Bergen Open Research Archive på forfatter "Berstad, Arnold"
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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 object, 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 ... -
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 ... -
Food allergy alters jejunal circular muscle contractility and induces local inflammatory cytokine expression in a mouse model
Valeur, Jørgen; Lappalainen, Jani; Rita, Hannu; Lin, Aung Htun; Kovanen, Petri T.; Berstad, Arnold; Eklund, Kari K.; Vaali, Kirsi Kaarina (Peer reviewed; Journal article, 2009-05-18)Background: We hypothesized that food allergy causes a state of non-specific jejunal dysmotility. This was tested in a mouse model. Methods: Balb/c mice were epicutaneously sensitized with ovalbumin and challenged with 10 ... -
Improved Quantification of Prostaglandins in Biological Samples by Optimizing Simultaneously the Relationship Eicosanoid/Internal-Standard and Using Liquid Chromatography Tandem Mass Spectrometry
Araujo, Pedro; Bjørkkjær, Tormod; Berstad, Arnold; Frøyland, Livar (Peer reviewed; Journal article, 2007-07)Although a wide variety of articles on quantification of eicosanoids by using internal standards are published every year, little has been done on how much internal standard should be added. This article demonstrates that ... -
Intestinal fermentation in patients with self-reported food hypersensitivity: painful, but protective?
Valeur, Jørgen; Morken, Mette Helvik; Norin, Elisabeth; Midtvedt, Tore; Berstad, Arnold (Peer reviewed; Journal article, 2010-07-03)Purpose: Enterometabolic disturbances may cause meal-related symptoms. We performed a functional evaluation of the intestinal microflora in patients with unexplained, self-reported food hypersensitivity by measuring fecal ... -
No Protection against DSS-induced Colitis by Short-term Pretreatment with Seal or Fish Oils in Rats
Arslan, Gülen; Erichsen, Kari; Milde, Anne Marita; Helgeland, Lars; Bjørkkjær, Tormod; Frøyland, Livar; Berstad, Arnold (Peer reviewed; Journal article, 2007-04-30)Background: Omega-3 (n-3) polyunsaturated fatty acids (PUFAs) have modulating effects in several chronic infl ammatory conditions. The aim of the present study was to test whether prior short-term dietary supplementation ... -
A randomized double blind comparison of short-term duodenally administrated whale and seal blubber oils in patients with inflammatory bowel disease and joint pain
Bjørkkjær, Tormod; Araujo, Pedro; Madland, Tor Magne; Berstad, Arnold; Frøyland, Livar (Peer reviewed; Journal article, 2009)Compared with soy oil, 10 days treatment with seal oil (SO), 10 mL×3 daily, self-administrated through a nasoduodenal feeding tube, relieves joint pain in patients with inflammatory bowel disease (IBD). This randomized, ... -
Reduced Joint Pain after Short-term Duodenal Administration of Seal Oil in Patients with Inflammatory Bowel Disease: Comparison with Soy Oil
Bjørkkjær, Tormod; Brunborg, Linn Anne; Arslan, Gülen; Lind, Ragna Anne; Brun, Johan Gorgas; Valen, Merete; Klementsen, Beate; Berstad, Arnold; Frøyland, Livar (Peer reviewed; Journal article, 2004)Background: Rheumatic joint pain is a common extraintestinal complication of inflammatory bowel disease (IBD). Because the high ratio of n-6 to n-3 fatty acids (FAs) of the Western diet might promote rheumatic disorders, ... -
Short-term duodenal seal oil administration normalised n-6 to n-3 fatty acid ratio in rectal mucosa and ameliorated bodily pain in patients with inflammatory bowel disease
Bjørkkjær, Tormod; Brun, Johan Gorgas; Valen, Merete; Arslan, Gülen; Lind, Ragna Anne; Brunborg, Linn Anne; Berstad, Arnold; Frøyland, Livar (Peer reviewed; Journal article, 2006-03-20)Background: A high dietary intake of n-6 compared to n-3 fatty acids (FAs) may promote the production of pro-inflammatory eicosanoids and cytokines. In two recent studies, short-term (10- day) duodenal administration of ... -
Subjective food hypersensitivity: assessment of enterochromaffin cell markers in blood and gut lavage fluid
Gregersen, Kine; Valeur, Jørgen; Lillestøl, Kristine; Frøyland, Livar; Araujo, Pedro; Lied, Gülen Arslan; Berstad, Arnold (Peer reviewed; Journal article, 2011-08)Background: Food hypersensitivity is commonly suspected, but seldom verified. Patients with subjective food hypersensitivity suffer from both intestinal and extraintestinal health complaints. Abnormalities of the ...