D-tryptophan is a probiotic substance influencing the gut microbiome and in vitro Th2 differentiation

Background: The use of probiotic bacteria has been proposed for prevention of allergic diseases. However, clinical trials have given inconsistent results. This may be explained by the complexity of the crosstalk between probiotic bacteria, the host´s microbiota and immune cells. The identification a biochemically defined, bioactive substances from probiotic bacteria could circumvent these problems. We have previously detected the...