title: Differential diagnosis and diseases due to enzyme changes.
mesh_terms: D000312:Adrenal Hyperplasia, Congenital / Q000378:metabolism; D000417:Albinism / Q000201:enzymology; D000474:Alkaptonuria / Q000201:enzymology; D000592:Amino Acid Metabolism, Inborn Errors / Q000378:metabolism; D001693:Biological Transport, Active; D002462:Cell Membrane / Q000378:metabolism; D003540:Cystathionine / Q000652:urine; D003937:Diagnosis, Differential; D004798:Enzymes / Q000172:deficiency / Q000235:genetics; D005246:Feedback; D005693:Galactosemias / Q000201:enzymology; D006008:Glycogen Storage Disease / Q000201:enzymology; D006801:Humans; D007926:Lesch-Nyhan Syndrome / Q000378:metabolism; D008661:Metabolism, Inborn Errors / Q000175:diagnosis* / Q000178:diet therapy / Q000201:enzymology / Q000235:genetics; D009083:Mucopolysaccharidoses / Q000201:enzymology; D009154:Mutation; D010661:Phenylketonurias / Q000201:enzymology; D013661:Tay-Sachs Disease / Q000201:enzymology; D014815:Vitamins / Q000627:therapeutic use
chemical_list: D004798:Enzymes; D014815:Vitamins; D003540:Cystathionine