TY - JOUR T1 - Subjective improvement in patients with psoriatic arthritis after short-term oral treatment with seal oil. A pilot study with double blind comparison to soy oil. JF - The Journal of Rheumatology JO - J Rheumatol SP - 307 LP - 310 VL - 33 IS - 2 AU - Tor Magne Madland AU - Tormod Björkkjaer AU - Linn Anne Brunborg AU - Livar Fröyland AU - Arnold Berstad AU - Johan G Brun Y1 - 2006/02/01 UR - http://www.jrheum.org/content/33/2/307.abstract N2 - OBJECTIVE: To investigate effects of short-term oral treatment with seal oil in patients with psoriatic arthritis (PsA). METHODS: Forty-three patients with polyarticular PsA were randomized to receive oral treatment for 2 weeks with either seal oil or soy oil in a double blind controlled trial. Clinical and biochemical variables were assessed at baseline, after treatment, and 4 weeks post-treatment. Patients were allowed to continue nonsteroidal antiinflammatory drugs (NSAID) and disease modifying antirheumatic drugs (DMARD) during the study. RESULTS: Forty patients completed the study, 20 in each treatment group. Patients in the seal oil group reported a significant improvement in global assessment of the disease 4 weeks post- treatment (p < 0.01), and both groups showed a trend toward improvement in tender joint count, but the differences between the groups were not significant. There was a fall in the ratio of n-6 to n-3 fatty acids and in arachidonic acid (AA) to eicosapentaenoic acid (EPA) in serum after treatment with seal oil (p < 0.01). Twenty-one percent of all patients had elevated values of calprotectin in feces suggestive of asymptomatic colitis. CONCLUSION: Treatment with seal oil was followed by a modest improvement in patient's global assessment of the disease and a trend towards a decrease in number of tender joints. There was a shift in fatty acid composition in serum toward a putative antiinflammatory profile. Oral treatment with seal oil may have NSAID-like effects in PsA. ER -