the effects of tryptophan administration on neurochemical estimates of synthesis [ 5-hydroxytryptophan ( 5-htp ) accumulation following administration of a decarboxylase inhibitor ] , storage [ 5-hydroxytryptamine ( 5-ht ) concentrations ] , and metabolism [ 5-hydroxyindoleacetic acid ( 5-hiaa ) concentrations ] of 5-ht in selected regions of the hypothalamus were determined using hplc coupled to an electrochemical detector .
C0041249
tryptophan
C0000578
5-htp