Purpose: Strong Wakamoto (GWT;Gut Working Tablet) is a Japanese traditional fermented medicine and a combination of
Aspergillus oryzae NK-fermented grain germ (
A. oryzae NK-koji) as its major component,
Enterococcus faecium-fermented grain germ and dried yeast. GWT and
A. oryzae NK-koji named a probiotics-koji. The purpose of this study was to investigate the usefulness of two probiotics-kojis on intestinal lesions of trinitrobenzene sulfonic acid (TNBS)-induced colitis in rats.
Methods: Sprague-Dawley rats were fed with or without 5% the probiotics-koji for 4 weeks and received an enema of TNBS/50% ethanol to induce colitis. The effect of these probiotics-kojis was evaluated on 7 days after administration of TNBS/50% ethanol.
Results: Treatment with 5% the probiotics-koji significantly improved loss of body-weight, increase of colon weight and histological damage score of colon mucosa, and decrease of superoxidedismutase (SOD) activity, faecal
Lactobacillus sp. when compared to the TNBS-colitis group without 5% the probiotics-koji. The increased TNF-α and cytokine induced neutrophil chemoattractant-1 (CINC-1) expressions in colonic tissue after TNBS enema were significantly ameliorated when GWT or
A. oryzae NK-koji was given (
p<0.05,
p<0.01).
Conclusion: The two probiotics-kojis of GWT and
A. oryzae NK-koji protected the worse of the colonic lesions, and improved the intestinal environment of TNBS-induced colitis in rats.
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