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Moyamoya vascular pattern in Alagille syndrome
Ruben Rocha1, Isabel Soro, Andreia Leitão
1Pediatric Neurology Unit, Department of Pediatrics, Centro Hospital S. João, Porto, Portugal. rubenrocha@gmail.com
Pediatric Neurology
|July 5, 2012
Summary
A girl with Alagille syndrome and moyamoya disease was identified with a novel JAG1 gene mutation. This case highlights a rare association and potential links to the Notch signaling pathway.
Area of Science:
- Genetics
- Neurology
- Pediatrics
Background:
- Alagille syndrome is a genetic disorder affecting multiple organs.
- Moyamoya disease is a progressive cerebrovascular disorder.
- Genetic factors are implicated in both conditions.
Observation:
- A pediatric case presenting with Alagille syndrome features and a moyamoya angiographic pattern.
- Facial dysmorphia and peripheral pulmonary stenosis were noted.
- Absence of cholestasis and vertebral anomalies was observed.
Findings:
- A novel heterozygous duplication mutation (c.715dupA) was identified in exon 5 of the JAG1 gene.
- This mutation is associated with Alagille syndrome.
- The findings suggest a potential genetic link between Alagille syndrome and moyamoya disease.
Implications:
- The study expands the known genotype-phenotype spectrum of Alagille syndrome.
- It suggests a possible role for the Jagged 1/Notch signaling pathway in the pathogenesis of moyamoya disease.
- Further research is warranted to elucidate the pathophysiological mechanisms underlying this association.
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