Mushrooms are abundant in a number of indoleamines including tryptophan, 5 - hydroxytryptophan, tryptamine, serotonin and melatonin. (robertbarrington.net)
Evidence for a tumoral immune resistance mechanism based on tryptophan degradation by indoleamine 2,3 - dioxygenase. (cancerresearch.org)
The important human indoleamines include serotonin, 5 - hydroxytryptophan and melatonin. (robertbarrington.net)