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Tarui disease and distal glycogenoses: clinical and genetic update Toscano A; Musumeci OActa Myol 2007[Oct]; 26 (2): 105-7Phosphofructokinase deficiency (Tarui disease) was the first disorder recognized to directly affect glycolysis. Since the discovery of the disease, in 1965, a wide range of biochemical, physiological and molecular studies have greatly contributed to our knowledge concerning not only phosphofructokinase function in normal muscle but also on the general control of glycolysis and glycogen metabolism. Studies on phosphofructokinase deficiency vastly enriched the field of glycogen storage diseases, making a relevant improvement also in the molecular genetic area. So far, more than one hundred patients have been described with prominent clinical symptoms characterized by muscle cramps, exercise intolerance, rhabdomyolysis and myoglobinuria, often associated with haemolytic anaemia and hyperuricaemia. The muscle phosphofructokinase gene is located on chromosome 12 and about 20 mutations have been described. Other glycogenoses have been recognised in the distal part of the glycolytic pathway: these are infrequent but some may induce muscle cramps, exercise intolerance and rhabdomyolysis. Phosphoglycerate Kinase, Phosphoglycerate Mutase, Lactate Dehydrogenase, beta-Enolase and Aldolase A deficiencies have been described as distal glycogenoses. From the molecular point of view, the majority of these enzyme deficiencies are sustained by "private" mutations.|Anemia, Hemolytic/genetics[MESH]|Exercise Tolerance[MESH]|Fructose-Bisphosphate Aldolase/deficiency[MESH]|Glycogen Storage Disease Type VII/complications/*diagnosis/enzymology/*genetics[MESH]|Glycogen Storage Disease/enzymology[MESH]|Humans[MESH]|Hyperuricemia/genetics[MESH]|L-Lactate Dehydrogenase/deficiency[MESH]|Muscle Cramp/genetics[MESH]|Mutation[MESH]|Myoglobinuria/genetics[MESH]|Phosphofructokinases/deficiency/genetics[MESH]|Phosphoglycerate Kinase/deficiency[MESH]|Phosphoglycerate Mutase/deficiency[MESH]|Phosphopyruvate Hydratase/deficiency[MESH]|Rhabdomyolysis/genetics[MESH] |
