title: Abnormalities of tryptophan metabolism (kynurenine pathway) found in a group of 830 mentally retarded children.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002854:Chromatography, Paper; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000652:urine*; D007736:Kynurenic Acid / Q000652:urine; D007737:Kynurenine / Q000031:analogs & derivatives / Q000652:urine; D010636:Phenols / Q000652:urine; D011736:Pyridoxine / Q000494:pharmacology; D013053:Spectrophotometry; D014364:Tryptophan / Q000378:metabolism*; D014977:Xanthurenates / Q000652:urine; D062367:ortho-Aminobenzoates / Q000031:analogs & derivatives / Q000652:urine
chemical_list: D010636:Phenols; D014977:Xanthurenates; D062367:ortho-Aminobenzoates; D007737:Kynurenine; D014364:Tryptophan; D007736:Kynurenic Acid; D011736:Pyridoxine