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Sökning: AMNE:(MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Gastroenterologi) > Populärvet., debatt m.m.

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  • Al-Saffar, Anas Kh. 1969-, et al. (författare)
  • Concurrent small and large intestinal permeability in inflammatory bowel disease : Hyper-permeability in IBD
  • Annan publikation (populärvet., debatt m.m.)abstract
    • Hyper-permeability in inflammatory bowel disease (IBD) has mostly been explored in the colon, where symptomatic inflammation is prevalent. Relationships between small and large intestine barrier function were examined. Fasted (4h) IBD (19 ulcerative colitis, 11 Crohn's disease) and 25 healthy control subjects’ were investigated. Lactulose (10g), mannitol (5g), riboflavin (0.05g) and sucralose (5g) were ingested with 500 mL water. Urine lactulose and mannitol were measured by enzyme assays, riboflavin by intrinsic fluorescence and sucralose by HPLC. CRP was measured by nephelometry. In IBD, small intestine lactulose and sucralose % recoveries were 1.77 and 2.73 fold higher than controls; combined data revealed the two probes were correlated (R2=0.6). In IBD, large intestine sucralose % recovery was 2.6 fold higher than controls and correlated with small intestine sucralose % recovery (R2=0.6). Conclusions: Sucralose yields similar result as lactulose for small intestine permeability, while having higher S:N, implying sucralose is more sensitive. No evidence was found for riboflavin malabsorption in IBD. There is concurrent small and large intestine hyper-permeability in IBD. Small intestine hyper-permeability is presumably related to inflammation in the large intestine, but without obvious deficiency in transporter mediated micronutrient absorption (i.e., riboflavin) in the small intestine.
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