Narbona López E, Maldonado Lozano J, del Castillo M L, Bayés García R, Robles Vizcaíno C, Núñez del Carril J, Molina Font J A
An Esp Pediatr. 1984 Mar 15;20(4):361-7.
Authors measured urinary excretion of tryptophan derivatives (kynurenine way) in 13 healthy and 15 epileptic children, modifying the technique qualitatively and quantitatively. In both groups, they measure tryptophan metabolites before and after L-tryptophan overload, the dosage being 100/mg/kg of body weight. They found higher tryptophan derivative values in the group suffering a epilepsy.