From ironjustice@21:1/5 to All on Sat Aug 5 03:09:32 2017
"Mice fed tryptophan develop immune cells that foster a tolerant gut"
"We established a link between one bacterial species— Lactobacillus reuteri—that is a normal part of the gut microbiome, and the development of a population of cells that promote tolerance,"
"the researchers grew L. reuteri in liquid and then transferred small amounts of the liquid—without bacteria—to immature immune cells isolated from mice. The immune cells developed into the tolerance-promoting cells. When the active component was
purified from the liquid, it turned out to be a byproduct of tryptophan metabolism known as indole-3-lactic acid."