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Abstract
Muscle biopsy extracts from a series of 6 patients with McArdle's disease were investigated
by analytical SDS-polyacrylamide gel electrophoresis, to establish the presence or
absence of the myophosphorylase protein subunit. In 4 cases, the band corresponding
to the myophosphorylase subunit was totally absent from the electrophoretic staining
pattern, and in 2 cases was present, but with a greatly reduced staining intensity
compared with control normal patients; thus in none of the cases of McArdle's disease
investigated was there evidence for a myophosphorylase subunit band of comparable
staining intensity to that found in control normal patients. This result contrasts
with previously reported findings (Feit and Brooke 1976) which suggested that McArdle's
disease exists in biochemically heterogeneous forms; in one form of the disease myophosphorylase
being totally absent and in a second form present to a similar extent as normal, but
in an inactive form. On the basis of the results reported in this paper, we would
suggest that myophosphorylase deficiency is a single gene disorder characterized by
the absence or marked reduction of the myophosphorylase protein.
Keywords
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References
- Heterozygotes in muscle phosphorylase deficiency.Trans. Amer. Neurol. Ass. 1973; 97: 179-182
- Beneficial effects of dantolene sodium in exercise-induced muscle pains: calcium mediated?.Lancet. 1982; i: 616-617
- Relaxing factor in McArdle's disease.Neurology. 1970; 20: 555-558
- Molecular heterogeneity of McArdle's disease.in: Abstracts of Society of Inborn Errors Meeting, Liverpool, U.K.1985
- Fatal infantile form of muscle phosphorylase deficiency.Neurology. 1977; 28: 1124-1129
- Glycogen metabolism of human diploid fibroblast cells in culture, Part 1 (Studies of cells from patients with glycogenosis types II, III and V).Pediat. Res. 1973; 7: 739-744
- McArdle disease: the mystery of reappearing phosphorylase activity in muscle culture — a fetal isoenzyme.Ann. Neurol. 1978; 3: 60-66
- Immunological studies of glycogen storage diseases type III and V: demonstration of the presence of an immunoreactive protein in one case of muscle phosphorylase deficiency.Biochem. Biophys. Res. Commun. 1971; 44: 1364-1370
- Late-onset type of skeletal muscle phosphorylase deficiency.N. Engl. J. Med. 1963; 268: 135-141
- Myophosphorylase deficiency: two different molecular etiologies.Neurology. 1976; 26: 963-967
- Are active and inactive phosphorylases histochemically distinguishable?.J. Histochem. Cytochem. 1963; 11: 108
- Acute renal failure in McArdle's disease.N. Engl. J. Med. 1972; 286: 1237-1241
- A new variant of late-onset myophosphorylase deficiency.Muscle and Nerve. 1980; 3: 195-201
- Cleavage of structural proteins during the assembly of the head of bacteriophage T4.Nature (Lond.). 1970; 227: 680-685
- Trials of verapamil and dantrolene sodium in McArdle's disease.Muscle and Nerve. 1984; 7: 592-593
- Protein measurement with the Folin phenol reagent.J. Biol. Chem. 1951; 193: 265-275
- Muscle-type phosphorylase activity present in muscle cells cultured from three patients with myophosphorylase deficiency.Arch. Neurol. (Chic.). 1977; 34: 779-781
- A simplified ultrasensitive silver stain for detecting proteins in polyacrylamide gels.Anal. Biochem. 1980; 105: 361-363
- Histochemical phosphorylase activity in regenerating muscle fibres from myophosphorylase deficient patients.Science. 1972; 177: 795-797
- Characterization of glycogen phosphorylase isoenzymes present in cultured skeletal muscle from patients with McArdle's disease.Biochem. Biophys. Res. Commun. 1977; 78: 663-668
- Chronic progressive myopathy with myoglobinuria: demonstration of a glycogenolytic defect in muscle.J. Clin. Invest. 1959; 38: 2044
- Diffuse exercise-induced muscle pain of undetermined cause relieved by verapamil.Lancet. 1981; i: 993
Article info
Publication history
Accepted:
September 12,
1986
Received in revised form:
September 12,
1986
Received:
July 4,
1986
Identification
Copyright
© 1987 Published by Elsevier Inc.