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Dicarboxylic aciduria in an infant with spinal muscular atrophy
Annals of Neurology
|December 1, 1986
Insights
Werdnig-Hoffmann disease, a motor neuron disorder, is linked to increased dicarboxylic acids in infants. This finding suggests potential fatty acid metabolism issues in this condition.
Area of Science:
- Biochemistry
- Pediatric Neurology
- Metabolic Disorders
Background:
- Werdnig-Hoffmann disease is a severe form of spinal muscular atrophy.
- Its known pathology primarily involves motor neuron degeneration.
Purpose of the Study:
- To investigate metabolic alterations in infants with Werdnig-Hoffmann disease.
- To explore potential links between Werdnig-Hoffmann disease and fatty acid metabolism.
Main Methods:
- Metabolic profiling of urine samples from a 1-year-old infant.
- Analysis of dicarboxylic acid excretion in fed and fasting states.
Main Results:
- The infant exhibited significantly elevated levels of dicarboxylic acids.
- Notably increased excretion of longer-chain (C10, C12) 3-hydroxydicarboxylic acids was observed.
- This dicarboxylic aciduria was present in both fed and fasting conditions.
Conclusions:
- Dicarboxylic aciduria is a newly identified metabolic finding in Werdnig-Hoffmann disease.
- This suggests a potential primary or secondary defect in fatty acid metabolism associated with the disorder.
Abstract:
A 1-year-old infant with classic Werdnig-Hoffmann disease was found to excrete abnormally large amounts of dicarboxylic acids in both fed and fasting states, with especially notable increases in the longer-chain (C10 and C12) 3-hydroxydicarboxylic acids. Dicarboxylic aciduria has not previously been associated with Werdnig-Hoffmann disease and suggests a primary or secondary defect of fatty acid metabolism in the disorder.