关键词: ABCC9 Cantu syndrome aortic aneurysm craniosynostosis familial mutation

Mesh : Adult Amino Acid Sequence Aortic Aneurysm / diagnosis genetics Aortic Aneurysm, Thoracic / diagnostic imaging pathology Base Sequence Brain / pathology Cardiomegaly / diagnosis diagnostic imaging genetics Child, Preschool Craniosynostoses / diagnosis genetics DNA Mutational Analysis Facies Genetic Diseases, X-Linked / diagnosis genetics Humans Hypertrichosis / diagnosis genetics Magnetic Resonance Imaging Male Mutation Mutation, Missense Osteochondrodysplasias / diagnosis genetics Phenotype Radiography Sulfonylurea Receptors / chemistry genetics Syndrome

来  源:   DOI:10.1002/ajmg.a.36228   PDF(Sci-hub)

Abstract:
Cantu syndrome is an autosomal dominant overgrowth syndrome associated with facial dysmorphism, congenital hypertrichosis, and cardiomegaly. Some affected individuals show bone undermodeling of variable severity. Recent investigations revealed that the disorder is caused by a mutation in ABCC9, encoding a regulatory SUR2 subunit of an ATP-sensitive potassium channel mainly expressed in cardiac and skeletal muscle as well as vascular smooth muscle. We report here on a Japanese family with this syndrome. An affected boy and his father had a novel missense mutation in ABCC9. Each patient had a coarse face and hypertrichosis. However, cardiomegaly was seen only in the boy, and macrosomia only in the father. Skeletal changes were not evident in either patient. Craniosynostosis in the boy and the development of aortic aneurysm in the father are previously undescribed associations with Cantu syndrome.
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