PMID: 2752652Feb 1, 1989

Erythrocyte 2,3-diphosphoglycerate in muscular dystrophy

Rinshō shinkeigaku = Clinical neurology
S YanagimotoM Iida

Abstract

Muscular dystrophy patients fall in respiratory failure in the terminal stage. Erythrocyte 2,3-diphosphoglycerate (2,3-DPG) is an important regulator of oxygen release, as it affects the position of the oxyhemoglobin dissociation curve. In order to survey the internal respiration in these patients, we studied the erythrocyte 2,3-DPG which regulates oxygen transport function. The concentration of erythrocyte 2,3-DPG was determined in 27 cases with Duchenne type muscular dystrophy and 10 cases with myotonic dystrophy (MyD). We analyzed the relation of erythrocyte 2,3-DPG to spirogram, arterial blood gas and acid-base analysis in these patients. 14 normal males were used as controls. In control subjects, the mean concentration ratio of 2,3-DPG and hemoglobin (DPG/Hb) was 0.880 +/- 0.072. 18 cases of DMD and 9 of MyD, which showed more than 45 torr of Pco2 in arterial blood gas, revealed 0.823 +/- 0.053 and 0.814 +/- 0.092 of DPG/Hb respectively. These values were significantly lower than that of controls. DPG/Hb correlated to % VC, Pao2, Paco2, pH, HCO3 and BE in DMD, but no relation to these parameters in MyD. The low ratio of DPG/Hb in erythrocyte was considered to be metabolic compensation of respiratory failure in DMD. On the ...Continue Reading

Related Concepts

Anion Gap
Blood Gas Analysis
Diphosphoglyceric Acids
Erythrocytes
Muscular Dystrophy
Oxygen Consumption
2,3-Diphosphoglycerate, (D)-Isomer

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