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Παρασκευή 15 Δεκεμβρίου 2017

SLC52A2 mutations cause SCABD2 phenotype: A second report

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Publication date: January 2018
Source:International Journal of Pediatric Otorhinolaryngology, Volume 104
Author(s): Mojgan Babanejad, Omid Ali Adeli, Nooshin Nikzat, Maryam Beheshtian, Hakimeh Azarafra, Farnaz Sadeghnia, Marzieh Mohseni, Hossein Najmabadi, Kimia Kahrizi
IntroductionAutosomal recessive cerebellar ataxias (ARCAs) are a large group of neurodegenerative disorders that manifest mainly in children and young adults. Most ARCAs are heterogeneous with respect to age at onset, severity of disease progression, and frequency of extracerebellar and systemic signs.MethodsThe phenotype of a consanguineous Iranian family was characterized using clinical testing and pedigree analysis. Whole-exome sequencing was used to identify the disease-causing gene in this family.Results and conclusionUsing whole exome sequencing (WES), a novel missense mutation in SLC52A2 gene is reported in a consanguineous Iranian family with progressive severe hearing loss, optic atrophy and ataxia. This is the second report of the genotype-phenotype correlation between this syndrome named spinocerebellar ataxia with blindness and deafness type 2 (SCABD2) and SLC52A2 gene.



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