Article
Limb-girdle muscular dystrophy 2C: clinical aspects.
Institut National de Neurologie, Tunis, Tunisia.
Neuromuscular Disorders (impact factor:
2.8).
01/1997;
6(6):493-4.
DOI:10.1016/S0960-8966(96)00395-1
Source: PubMed
-
Citations (0)
- Cited In (2)
-
Article: gamma-sarcoglycan deficiency muscular dystrophy in two adults.
[show abstract] [hide abstract]
ABSTRACT: All dystrophin-associated proteins contain sarcoglycan complex. Different forms of muscular dystrophy are caused by defective expression of different proteins of this structure. gamma-Sarcoglycan deficiency muscular dystrophy, so-called severe childhood autosomal recessive muscular dystrophy (SCARMD), is a rare disease that has not been previously reported in Taiwan. This paper describes two Taiwanese adults with this disease: a 26-year-old man with calf pseudohypertrophy who had weakness in both legs for 1 year; and a 43-year-old woman who had progressive weakness in all four limbs, with the initial symptom of gait disturbance at the age of 32 years. Analysis of muscle biopsy specimens, which showed total deficiency of gamma-sarcoglycan protein on immunostaining, confirmed the diagnosis of SCARMD in both cases. However, the clinical manifestations in these two patients, including lower proximal limb weakness initially developing in adulthood with a slow progressive course, are different from previously reported cases of SCARMD. The literature on this disease is reviewed and possible mechanisms of these distinct clinical presentations are discussed.Journal of the Formosan Medical Association 11/2000; 99(10):789-91. · 1.13 Impact Factor -
Article: Heart involvement in muscular dystrophies due to sarcoglycan gene mutations.
[show abstract] [hide abstract]
ABSTRACT: Mutations in the sarcoglycan genes cause autosomal-recessive muscular dystrophies. Because sarcoglycan genes and their protein products are highly expressed both in skeletal and cardiac muscle, patients with these mutations might be expected to be at risk to develop dilated cardiomyopathy. We therefore studied 13 patients with alpha-, beta-, gamma-sarcoglycan gene mutations by thorough cardiological assessment. Electrocardiographic or echocardiographic abnormalities were observed in about 30% of cases showing a severe course of muscular dystrophy. No correlation was found between the presence of cardiac abnormalities and the type of mutation or sarcoglycan gene involved. The cardiac involvement was never severe, but it may be detected in early stages of the muscle disease. The absence of overt cardiac dysfunction may be due to lower sarcoglycan protein expression in cardiac than skeletal muscle or to less sarcolemmal instability at the myocardial level, possibly related to the different distribution of forces generated by contraction of the myocardium with respect to proximal limb-girdle muscles.Muscle & Nerve 05/1999; 22(4):473-9. · 2.37 Impact Factor
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed.
The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual
current impact factor.
Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence
agreement may be applicable.
Keywords
35 KDa dystrophin-associated glycoprotein deficiency
alpha-sarcoglycan
autosomal recessive inheritance
chromosome 13q
Duchenne muscular dystrophy
muscle biopsy
myopathic changes