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Laing early-onset distal myopathy in a Belgian family
- Source :
- Acta neurologica Belgica
- Publication Year :
- 2014
- Publisher :
- Springer Science and Business Media LLC, 2014.
-
Abstract
- We report the first Belgian family with Laing early-onset distal myopathy (MPD1). The proposita started limping at age 7. Later, there was severe weakness of proximal and distal muscles, including neck flexors. Her daughter developed foot drop at age 4. Progressive weakness of distal limb extensor muscles and mild weakness of the neck flexor and proximal muscles were noted. In both patients, CK and nerve conductions were normal, but EMG showed a brief, small amplitude, abundant, polyphasic potential pattern. Heart and respiration were normal. Several muscle biopsies have been performed in each with various diagnoses, including aspecific myopathic changes, congenital fibre type disproportion, and denervationreinnervation. Analysis of MYH7 revealed a c.4522_4524del mutation (p.Glu1508del). This appears to be a de novo mutation, which has been reported in French, Norwegian, and Finnish patients.
- Subjects :
- Weakness
medicine.medical_specialty
Foot drop
Neurology
Belgium
Humans
Medicine
Muscle, Skeletal
Myopathy
Aged
Family Health
LAING DISTAL MYOPATHY
Myosin Heavy Chains
business.industry
General Medicine
Anatomy
Distal limb
Surgery
Distal Myopathies
Mutation
Female
MYH7
Human medicine
Neurology (clinical)
medicine.symptom
business
Cardiac Myosins
Subjects
Details
- ISSN :
- 22402993 and 03009009
- Volume :
- 114
- Database :
- OpenAIRE
- Journal :
- Acta Neurologica Belgica
- Accession number :
- edsair.doi.dedup.....c5463f2861afb8e59a1b21dde4aca160