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Effect of fish oil enriched enteral diet on inflammatory bowel disease tissues in organ culture: Differential effects on ulcerative colitis and Crohn's disease

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World Journal of Gastroenterology 2005年第47期11卷 7466-7472页

作者： doris meister Subrata Ghosh Gastrointestinal Unit University of EdinburghWestern General HospitalEdinburgh EH4 2XUUnited Kingdom

AIM： To investigate the influence of fish oil enriched enteral diet on intestinal tissues taken from Crohn＇s disease （CD）, ulcerative colitis （UC） and non-inflamed non-IBD control patients in vitro. METHODS： Colonoscopic biopsies from patients with active CD （n = 4）, active UC （n = 7）, and non-inflamed non-IBD control patients （n = 4） were incubated （three dilutions of 1：20, 1：10, and 1：5） with Waymouth＇s culture medium and enteral elemental diet （EO28, SHS, Liverpool, UK） modified in the fatty acid composition with fish oil （EF） in an organ culture system for 24 h. In each experimental set-up, incubation with Waymouth＇s medium alone as control was included. Tissue viability was assessed by adding bromodeoxyuridine （BrdU） to the culture fluid and immunohistochemically staining for BrdU uptake. Cytokine ratio of IL-1ra/IL-1β （low ratio indicative of inflammation） and production of those cytokines as a percentage of medium control were assayed in the culture supernatant. RESULTS： Incubation of CD-affected tissue with EF （1：20, 1：10, and 1：5） modestly and non-significantly increased IL-1ra/IL-1β ratio as compared with medium control （CD 39.1±16.1; 26.5±7.8, 47.1±16.8 vs control 13.0±2.2）, but incubation of UC-affected tissues increased IL-1ra/IL-1β ratio significantly in all three dilutions （UC 69.1±32.2, P〈0.05; 76.1±36.4, P = 0.05; 84.5±37.3, P〈0.02; vs control 10.2±3.7）. Incubation of non-inflamed non-IBD control tissue did not increase the IL-1ra/IL-1β ratio in any dilution compared to medium control （69.3±47.0, 54.1±30.6, 79.4±34.0 vs control 76.1±37.3）. Average percentage production of IL-1β indexed against medium control was significantly less in UC after EF incubation as compared with CD （UC 24.0±4.8 vs CD 51.8±8.1; P〈0.05）. Average percentage production of IL-tra was markedly higher in UC （135.9±3.4） than that in control patients （36.5±4.3）（p〈0.0001）. CONCLUSION： IBD tissues, after incubation with elemental diet modified in its fatty acid composition wi

关键词： Inflammatory bowel disease ω-3 fatty acids Cytokine ratio IL-1ra/IL-1β In vitro

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Amino Acid Composition Reduces Frequency of Common Colds. Results of a Controlled Randomised Completely Masked Trial

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Food and Nutrition Sciences 2013年第3期4卷 262-269页

作者： Alfons Meyer doris meister Wilhelm Gaus Institute of Epidemiology and Medical Biometry University of Ulm Ulm Germany. Kaiser-Friedrich-Ring 77 Wiesbaden Germany Medical Science Department Kyberg Vital GmbH Oberhaching Germany

Purpose: Special nutrients have an impact on common cold infections. In this trial we have investigated the effectiveness of the specific amino acid composition “aminoplus? immun” on the occurrence, duration and severity of common cold. Material and Methods: Our study is a controlled, randomised completely masked trial comparing genuine trial remedy versus placebo in parallel groups. Eligible subjects were people with recurrent and chronic infections of the ear, nose and pharyngeal area. The treatment period was 90 days. The primary outcome was the mean number of days that the patients had symptoms of infections. Results: From Oct. 2009 to Feb. 2010 a total of 145 patients were recruited, of whom 119 had no major protocol violation and were valid for assessment. Two thirds of the patients were female. The mean age of the patients was 45 years. 65% of participants had come into contact with many people and thereby an increased risk of infection. On average the patients had 11.1 infections during the 12 months before the study. Compliance for the intake of the study preparation was 98.9%. Due to randomisation, the groups were very similar and balanced. The primary and all 6 secondary outcome variables showed a clear superiority of the investigated amino acid composition over placebo (p Conclusion: The specific composition “aminoplus? immun is effective in preventing recurrent and chronic infections of the ear, nose and upper respiratory tract.

关键词： Amino Acids Immune System Vitamins Common Cold Chronic Infection of Ear Nose Pharyngeal Area

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