Unique autosomal recessive variant of palmoplantar keratoderma associated with hearing loss not caused by known mutations.

Autor: Hegazi MA; Department of Pediatrics, Faculty of Medicine in Rabigh, King Abdulaziz University - Jeddah, Saudi Arabia.; Department of Pediatrics, Mansoura University Children's Hospital - Mansoura, Egypt., Manou S; Department of Medical Genetics, University of Antwerp, Universiteitsplein - Antwerp, Belgium., Sakr H; Department of Dermatology and Venereology, Ibn Sina College Hospital - Jeddah, Saudi Arabia., Camp GV; Department of Medical Genetics, University of Antwerp, Universiteitsplein - Antwerp, Belgium.
Jazyk: angličtina
Zdroj: Anais brasileiros de dermatologia [An Bras Dermatol] 2017; Vol. 92 (5 Suppl 1), pp. 154-158.
DOI: 10.1590/abd1806-4841.20176235
Abstrakt: Inherited Palmoplantar Keratodermas are rare disorders of genodermatosis that are conventionally regarded as autosomal dominant in inheritance with extensive clinical and genetic heterogeneity. This is the first report of a unique autosomal recessive Inherited Palmoplantar keratoderma -sensorineural hearing loss syndrome which has not been reported before in 3 siblings of a large consanguineous family. The patients presented unique clinical features that were different from other known Inherited Palmoplantar Keratodermas -hearing loss syndromes. Mutations in GJB2 or GJB6 and the mitochondrial A7445G mutation, known to be the major causes of diverse Inherited Palmoplantar Keratodermas -hearing loss syndromes were not detected by Sanger sequencing. Moreover, the pathogenic mutation could not be identified using whole exome sequencing. Other known Inherited Palmoplantar keratoderma syndromes were excluded based on both clinical criteria and genetic analysis.
Databáze: MEDLINE