title: The problem of some naturally occurring substances and their correlated compounds interfering with B6-dependent enzyme activities involved in tryptophan degradation. Xanthurenic acid accumulation in B6-deficiency.
mesh_terms: D000818:Animals; D004789:Enzyme Activation / Q000187:drug effects; D005260:Female; D006801:Humans; D006867:Hydrolases / Q000378:metabolism*; D007668:Kidney / Q000201:enzymology*; D007700:Kinetics; D007737:Kynurenine; D008297:Male; D010860:Pigments, Biological / Q000494:pharmacology / Q000652:urine*; D011247:Pregnancy; D051381:Rats; D013379:Substrate Specificity; D000637:Transaminases / Q000302:isolation & purification / Q000378:metabolism*; D026681:Vitamin B 6 Deficiency / Q000378:metabolism*
chemical_list: D010860:Pigments, Biological; D007737:Kynurenine; D000637:Transaminases; D006867:Hydrolases