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Updated: Sep 27, 2026

DNBS/TNBS Colitis Models: Providing Insights Into Inflammatory Bowel Disease and Effects of Dietary Fat
Published on: February 27, 2014
Effects of duodenal seal oil administration in patients with inflammatory bowel disease
Gülen Arslan1, Linn Anne Brunborg, Livar Frøyland
1Division of Gastroenterology, Institute of Medicine, Haukeland University Hospital, N-5021 Bergen, Norway. gulen.arslan@med.uib.no
Abstract:
Long-chain n-3 PUFA in fish oil have modulating effects on inflammatory responses. The aim of this open pilot study was to investigate whether duodenal seal oil administration would benefit patients with inflammatory bowel disease (IBD). Seal oil (10 mL) was administered three times a day directly into the distal part of the duodenum via a nasoduodenal feeding tube for 10 d in 10 patients, 5 of whom had Crohn's disease and 5 ulcerative colitis. Nine of the 10 patients suffered from IBD-associated joint pain. Various parameters of disease activity and FA incorporation in tissues were analyzed before and after treatment. Following seal oil therapy, joint pain index, disease activity, and serum cholesterol level were significantly decreased, whereas the n-3 to n-6 ratio both in intestinal biopsies and blood was significantly increased. Measures of calprotectin concentration in gut lavage fluid, intestinal permeability, and lipid peroxidation were not significantly changed. The results suggest positive effects of seal oil in patients with IBD, especially on IBD-associated joint pain. Further controlled studies are warranted.
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