Journal
JOURNAL OF CHILD NEUROLOGY
Volume 25, Issue 6, Pages 764-769Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/0883073809344121
Keywords
spinal muscular atrophy with respiratory distress 1 (SMARD1); spinal muscular atrophy-plus; IGHMBP2
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The condition, currently known as spinal muscular atrophy with respiratory distress type 1, is an unusual variant of spinal muscular atrophy type 1 that is characterized by early respiratory failure due to diaphragmatic paralysis. The defective gene, the immunoglobulin mu-binding protein 2 (IGHMBP2 gene), of this autosomal recessive disorder is located on chromosome 11 q 13 and encodes immunoglobulin mu-binding protein 2. The natural history and phenotypic spectrum of the disease are still not clear. The authors present the first genetically proven case of spinal muscular atrophy with respiratory distress type 1 to be reported from Saudi Arabia. The parents are first cousins and the causative gene sequencing revealed mutation in exon 7 reported for the first time in a homozygous form. The clinical scenario of the case is discussed. The findings in the muscle magnetic resonance imaging (MRI) are presented.
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