PubMed · 13273240
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S F MARSHALL. 1955. Regional enteritis.. https://doi.org/10.1080/00325481.1955.11712023
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Exclusive enteral nutrition (EEN) is a first-line therapy for pediatric Crohn's disease (CD), but protective mechanisms remain unknown. We established a prospective pediatric cohort to characterize the function of fecal microbiota and metabolite changes of treatment-naive CD patients in response to EEN (German Clinical Trials DRKS00013306). Integrated multi-omics analysis identified network clusters from individually variable microbiome profiles, with Lachnospiraceae and medium-chain fatty acids as protective features. Bioorthogonal non-canonical amino acid tagging selectively identified bacterial species in response to medium-chain fatty acids. Metagenomic analysis identified high strain-level dynamics in response to EEN. Functional changes in diet-exposed fecal microbiota were further validated using gut chemostat cultures and microbiota transfer into germ-free Il10-deficient mice. Dietary model conditions induced individual patient-specific strain signatures to prevent or cause inflammatory bowel disease (IBD)-like inflammation in gnotobiotic mice. Hence, we provide evidence that EEN therapy operates through explicit functional changes of temporally and individually variable microbiome profiles.
AIM: To evaluate the effect of perioperative parenteral nutrition on serum immunoglobulin, weight change, and post-operative outcome in severely malnourished patients with Crohn's disease. METHODS: Thirty-two severely malnourished patients with Crohn's disease who had undergone surgery in our hospital were reviewed. Sixteen patients who received perioperative parenteral nutrition were enrolled in the study group, and the other 16 patients who did not receive parenteral nutrition were enrolled in the control group. Serum immunoglobulin, body mass index (BMI), liver function, weight change, and postoperative complications were evaluated. RESULTS: Serum IgM levels elevated 1 wk before surgery in both groups, and decreased to normal value (from 139+/-41 to 105+/-29 mg/dL, P = 0.04) 4 wk after operation in the study group, while no significant changes was noted in the control group (from 133+/-16 to 129+/-13 mg/dL, P = 0.34). There were no significant changes in concentrations of IgG and IgA. The BMI of the study group increased from 13.9+/-0.6 to 15.3+/-0.7 kg/m(2) (P = 0.02) with no significant change in the control group (14.1+/-0.7 and 14.5+/-0.5, respectively, P = 0.81). The percentage of resuming work was higher in the study group than in the control group. CONCLUSION: Perioperative parenteral nutrition possibly ameliorates the humoral immunity, reverses malnutrition, and facilitates rehabilitation.
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