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  • Title: An in vivo study of muscle phosphate metabolism in Becker's dystrophy by 31P NMR spectroscopy.
    Author: Newman RJ.
    Journal: Metabolism; 1985 Aug; 34(8):737-40. PubMed ID: 4021805.
    Abstract:
    The forearm flexor muscles of five patients with Becker's dystrophy were examined by the painless and noninvasive technique of high resolution phosphorus nuclear magnetic resonance spectroscopy. In the mildly affected cases, the ratios of the signals of phosphocreatine to ATP and to inorganic phosphate were normal but they were reduced in the patients with advanced disease. Absolute quantitation under the conditions of the study was not feasible, but it was probable that whereas in advanced Becker's dystrophy the intramyocellular concentration of phosphocreatine was reduced, that of ATP was unchanged. The intramyocellular pH was normal in three of the four patients in whom this could be measured and an additional unidentified signal between those of phosphocreatine and inorganic phosphate was recorded in two patients. This study emphasizes some metabolic similarities between Becker's and Duchenne type muscular dystrophy and suggests that nuclear magnetic resonance spectroscopy may be a useful and objective technique with which to investigate the biochemistry of these and other muscle diseases.
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