alexa A novel homozygous GALC mutation: very early onset and rapidly progressive Krabbe disease.
Genetics & Molecular Biology

Genetics & Molecular Biology

Gene Technology

Author(s): Kardas F, Uzak AS, Hossain MA, Sakai N, Canpolat M,

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Abstract A clear cut genotype-phenotype correlation for Krabbe disease is not available. Therefore, it is important to identify new mutations and their associated phenotypes to predict the prognosis of the disease. The aim of this study is to identify the causative mutation(s) in a family with Krabbe disease. After a clinical evaluation and suspicion of Krabbe disease galactocerebrosidase activity was analyzed and GALC gene mutation analysis was performed. The galactocerebrosidase enzyme activity was 0.01 nmol/mg/h protein (normal range 0.8-4). For further investigation mutation screening was performed by Sanger sequencing across the 17 exons of GALC gene. A novel homozygous mutation c.727delT (p.S243QfsX7) was found. In this study we present the clinical findings along with a novel GALC mutation in a consanguineous Turkish family. Although the relationship between the various genotypes and phenotypes in Krabbe disease has not been fully elucidated an accurate genetic family study is helpful for genetic counseling follow-up and therapy of Krabbe disease. Also, it is important to identify new mutations in order to clarify their clinical importance, to assess the prognosis of the disease, and to suggest either prenatal diagnosis or preimplantation genetic diagnosis to the effected families. Copyright © 2012 Elsevier B.V. All rights reserved. This article was published in Gene and referenced in Gene Technology

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