Enhanced enzymatic degradation of tryptophan by indoleamine 2,3-dioxygenase contributes to the tryptophan-deficient state seen after major trauma.
Pellegrin K, Neurauter G, Wirleitner B, Fleming AW, Peterson VM, Fuchs D. Enhanced enzymatic degradation of tryptophan by indoleamine 2,3-dioxygenase contributes to the tryptophan-deficient state seen after major trauma. Shock. 2005 Mar; 23(3):209-15.