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Lactobacillus casei protects dextran sodium sulfate- or rapamycin-induced colonic inflammation in the mouse | European Journal of Nutrition

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Lactobacillus casei protects dextran sodium sulfate- or rapamycin-induced colonic inflammation in the mouse - European Journal of Nutrition

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Purpose Human colon inflammation is associated with changes in the diverse and abundant microorganisms in the gut. As important beneficial microbes, Lactobacillus contributes to the immune responses and intestinal integrity that may alleviate experimental colitis. However, the mechanisms underlying probiotic benefits have not been fully elucidated. Methods Dextran sodium sulfate or rapamycin-challenged mice were used as model for colon inflammation evaluation. Histological scores of the colon, levels of colonic myeloperoxidase, serum tumor necrosis factor-α and interleukin-6 were assessed as inflammatory markers and the gut microbiota profiles of each mouse were studied. Results We found that Lactobacillus casei Zhang (LCZ) can prevent experimental colitis and rapamycin-induced inflammation in intestinal mucosa by improving histological scores, decreasing host inflammatory cytokines, modulating gut-dominated bacteria, enhancing cystic fibrosis transmembrane conductance regulator (CFTR) expression and downregulating the expression of p-STAT3 (phosphorylated signal transducer and activator of transcription 3) or Akt/NF-κB (AKT serine/threonine kinase and nuclear factor kappa B). Conclusion Our results suggest that LCZ may provide effective prevention against colitis.

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Lactobacillus casei protects dextran sodium sulfate- or rapamycin-induced colonic inflammation in the mouse

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European Journal of Nutrition - Human colon inflammation is associated with changes in the diverse and abundant microorganisms in the gut. As important beneficial microbes, Lactobacillus...

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