Myotonia congenita and myoadenylate deaminase deficiency: case report.
Arq Neuropsiquiatr
; 61(2A): 262-4, 2003 Jun.
Article
in En
| MEDLINE
| ID: mdl-12806508
ABSTRACT
Approximately 1-2% of the population has a deficiency of the enzyme myoadenylate deaminase. Early reports suggested that patients with myoadenylate deaminase deficiency had various forms of myalgia, and exercise intolerance. However, a deficiency of the enzyme has been described in many conditions, including myopathies, neuropathies, and motor neuron disease. We report a patient with clinical diagnosis of myotonia congenita and absent myoadenylate deaminase reaction on the muscle biopsy. This is the first description of myoadenilate deaminase deficiency with myotonia congenita. Myoadenylate deaminase deficiency is the most common enzymatic deficit of muscle, and the association with other neuromuscular diseases is coincidental.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
AMP Deaminase
/
Myotonia Congenita
Limits:
Child
/
Humans
/
Male
Language:
En
Journal:
Arq Neuropsiquiatr
Year:
2003
Type:
Article
Affiliation country:
Brazil