Abstract
There are limited studies on the improvement of leaky gut with minor inflammation associated with various diseases. To explore the therapeutic potential of Lactiplantibacillus plantarum 22 A-3, a member of the Lactobacillus species, in addressing a leaky gut. Lactiplantibacillus plantarum 22 A-3 was administered to a leaky gut mice model with low dextran sulfate sodium concentrations. The Lactiplantibacillus plantarum 22 A-3-treated group exhibited amelioration of increased intestinal permeability, as indicated by lower blood fluorescein isothiocyanate-dextran levels compared with that of the control group. Furthermore, the messenger RNA expression of interleukin-10, an anti-inflammatory cytokine, was upregulated in the small intestine of Lactiplantibacillus plantarum 22 A-3-treated mice. Moreover, forkhead box P3 was upregulated in the small intestine and colon following Lactiplantibacillus plantarum 22 A-3 administration. Flow cytometry showed that forkhead box P3-positive regulatory T cells tended to increase in the small intestine and colon; however, this was not significant. Messenger RNA levels for the pro-inflammatory cytokines, interleukin-1 beta, and tumor necrosis factor-alpha showed no significant changes in the small intestine; however, their expressions significantly decreased in the colon. Blood fluorescein isothiocyanate-dextran levels showed that intestinal permeability also decreased in Lactiplantibacillus plantarum 22 A-3-dead bacteria. The bacterial component of Lactiplantibacillus plantarum 22 A-3 ameliorates increased intestinal permeability through its anti-inflammatory effect in the intestinal tract and may be a novel treatment for leaky gut.
Published Version
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