CHN1 and duane retraction syndrome: Expanding the phenotype to cranial nerves development disease
TRIMOUILLE, Aurelien
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
ARVEILER, Benoit
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
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Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
TRIMOUILLE, Aurelien
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
ARVEILER, Benoit
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
LASSEAUX, Eulalie
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) [U1211 INSERM/MRGM]
TOURDIAS, Thomas
Neurocentre Magendie : Physiopathologie de la Plasticité Neuronale [U1215 Inserm - UB]
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Neurocentre Magendie : Physiopathologie de la Plasticité Neuronale [U1215 Inserm - UB]
Langue
EN
Article de revue
Ce document a été publié dans
European Journal of Medical Genetics. 2021-04, vol. 64, n° 4
Résumé en anglais
Duane retraction syndrome is a congenital eye movement disorder characterized by a failure of abducens nerve to develop normally, resulting in restriction or absence of abduction, adduction, or both, and narrowing of the ...Lire la suite >
Duane retraction syndrome is a congenital eye movement disorder characterized by a failure of abducens nerve to develop normally, resulting in restriction or absence of abduction, adduction, or both, and narrowing of the palpebral fissure and retraction of the globe on attempted adduction. There is a genetic heterogeneity in Duane retraction syndrome (DURS). DURS maps to chromosome 8q13 in some patients, and pathogenic variants in CHN1 and MAFB genes are known to lead to DURS. We report here a child and his father with Duane retraction syndrome, associated to swallowing difficulties and unilateral trapeze aplasia. A whole exome sequencing revealed a heterozygous missense variant in CHN1 gene. This gene encodes GTPase-activating protein and is involved in the assembly of neuronal locomotor circuits. A patient with a 8q deletion has previously been described with a Duane retraction syndrome associated to trapeze aplasia. We provide an additional description to support the role in cranial nerves development of the CHN1 gene.< Réduire
Mots clés en anglais
Cranial nerves
Duane syndrome
Neurodevelopment