Quinolinic AcidQuinolinic AcidsKynurenineKynurenine 3-Monooxygenase3-Hydroxyanthranilic Acid3-Hydroxyanthranilate 3,4-DioxygenaseTryptophanTryptophan OxygenaseKynurenic AcidPentosyltransferasesIndoleamine-Pyrrole 2,3,-DioxygenaseNeurotoxinsNicotinic AcidsNiacinHarmineArylformamidaseortho-AminobenzoatesTransaminasesAmino AcidsPicolinic AcidsHuntington DiseaseCorpus StriatumTriosesBrainNADXanthurenatesConvulsants2-Aminoadipate TransaminaseAspartic Acid2-Amino-5-phosphonovalerate