The Kynurenine Pathway As a Novel Link between Allergy and the Gut Microbiome
In the past few decades, the indoleamine 2,3 dioxygenase (IDO) subset of the kynurenine (KYN) pathway of tryptophan (TRP) metabolism has been the subject of much research in the cottonmouth 3.5 high shirt area of immune tolerance.In this review, we aim to incorporate new findings on this pathway in relation to allergy and the gut microbiome, while