A Tanzanian Boy with Molecularly Confirmed X-Linked Adrenoleukodystrophy

Area of Science:

• Genetics
• Neurology
• Biochemistry

Background:

• Adrenoleukodystrophy (ALD) is an X-linked peroxisomal disorder with recognizable features, even in resource-limited settings.
• While documented globally, ALD cases from Africa are scarce, suggesting underdiagnosis in regions lacking specialized neurological care.

Observation:

• A case of ALD was investigated in a boy presenting with neurological decline and adrenal failure.
• Clinical and radiological findings were suggestive of ALD.
• Genetic screening focused on the ABCD1 gene.

Findings:

• A common ABCD1 gene mutation was identified in the patient.
• This represents the first genetically confirmed case of ALD in Sub-Saharan Africa.
• The findings confirm the recognisability of ALD even in low-resource environments.

Implications:

• This genetic confirmation expands the known geographical distribution of ABCD1-associated diseases.
• ALD may be significantly underdiagnosed in regions lacking specialized neurological services.
• Increased awareness and diagnostic capabilities for ALD are crucial in underserved areas.