COL4A1 mutation in Axenfeld-Rieger anomaly with leukoencephalopathy and stroke.
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Sibon I, Coupry I, Menegon P, Bouchet JP, Gorry P, Burgelin I, Calvas P, Orignac I, Dousset V, Lacombe D, Orgogozo JM, Arveiler B, Goizet C
COL4A1 mutation in Axenfeld-Rieger anomaly with leukoencephalopathy and stroke.
Ann Neurol. 2007 Aug;62(2):177-84. doi: 10.1002/ana.21191.
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- 17696175 [ View in PubMed]
- Abstract
OBJECTIVE: Several hereditary ischemic small-vessel diseases of the brain have been reported during the last decade. Some of them have ophthalmological, mainly retinal, manifestations. Herein, we report on a family affected by vascular leukoencephalopathy and variable abnormalities of the anterior chamber of the eye. METHODS: After the occurrence of a small, deep infarct associated with white matter lesions in a patient with a medical history of congenital cataract and amblyopia, we conducted clinical and neuroradiological investigations in 10 of her relatives. RESULTS: Diffuse leukoencephalopathy associated with ocular malformations of the Axenfeld-Rieger type was observed in five individuals. Familial genetic analyses led to the identification of a novel missense mutation in the COL4A1 gene, p.G720D, which cosegregates with the disease. INTERPRETATION: Our data corroborate previous observations demonstrating the role of COL4A1 in cerebral microangiopathy and expand the phenotypic spectrum associated with mutations in this gene. We delineate a novel association between the Axenfeld-Rieger anomaly and leukoencephalopathy and stroke. Ann Neurol 2007.