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Behr's syndrome and 3-methylglutaconic aciduria.
R N Sheffer1, J Zlotogora, O N Elpeleg
1Department of Human Genetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel.
American Journal of Ophthalmology
|October 15, 1992
Summary
This study identifies a rare genetic disorder causing vision loss and neurological issues in children. Early detection involves screening for 3-methylglutaconic aciduria in patients with optic atrophy and neurological symptoms.
Area of Science:
- Genetics
- Neurology
- Ophthalmology
Background:
- Behr's syndrome is a rare, inherited condition characterized by optic nerve atrophy and neurological deficits.
- Understanding the genetic basis and metabolic links is crucial for diagnosis and management.
Observation:
- Three patients from two families of Jewish-Iraqi descent presented with progressive vision loss and childhood-onset optic nerve atrophy.
- Neurological symptoms included spastic paraplegia, dysarthria, and nystagmus, varying among siblings.
Findings:
- Patients excreted excessive amounts of 3-methylglutaconic acid and 3-methylglutaric acid in their urine.
- This suggests a link between specific organic acidurias and Behr's syndrome-like phenotypes.
Implications:
- Early-onset optic atrophy warrants neurological examination and organic aciduria screening.
- Ophthalmic evaluation is vital for diagnosing neurological conditions like Behr's syndrome.