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A novel ABCD1 gene mutation in a Chinese patient with X-linked adrenoleukodystrophy
Background:
X-linked adrenoleukodystrophy (X-ALD) (OMIM: 300100) is a recessive neurodegenerative disorder caused by defects in the ABCD1 gene on chromosome Xq28. Childhood cerebral ALD (CCALD) is the most frequent phenotype.
Objective:
We describe an affected boy who developed normally until he was 8 years old then suffered progressive neurological deficits that ultimately led to death.
Methods:
Diagnosis was based on clinical symptoms, an abnormal very long chain fatty acid profile in plasma, typical CCALD MRI pattern, and molecular analysis.
Results:
Direct sequencing of the ABCD1 gene in this patient identified a novel splicing mutation (IVS1+1G>A) in intron 1, which is considered to be the pathogenic mutation.
Conclusion:
We have identified a novel ABCD1 mutation as the likely cause of CCALD in a Chinese patient.
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