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ABSTRACT: Background
Progressive encephalopathy with or without lipodystrophy is a rare autosomal recessive childhood-onset seipin-associated neurodegenerative syndrome, leading to developmental regression of motor and cognitive skills. In this study, we introduce a patient with developmental regression and autism. The causative mutation was found by exome sequencing.Methods
The proband showed a generalized hypertonia and regression of all developmental milestones. Based on the advantages of next-generation sequencing (NGS), whole exome sequencing (WES) was requested. The functional significance of variants was evaluated by NGS-specific prediction servers. Sanger sequencing was used for segregation analysis in the family.Results
There was no specific sign in the clinical and paraclinical investigations of the patient to establish a conclusive clinical diagnosis. WES detected a known homozygous nonsense mutation in BSCL2 (NM_001122955.3:c. 985C>T; p.Arg329*). The variant is segregating in the pedigree with an autosomal recessive pattern.Conclusion
Exome sequencing is a robust method for identifying the candidate gene variants in Mendelian traits.
SUBMITTER: Alaei MR
PROVIDER: S-EPMC5075143 | biostudies-literature | 2016 Nov
REPOSITORIES: biostudies-literature
Alaei Mohammad Reza MR Talebi Saeed S Ghofrani Mohammad M Taghizadeh Mohsen M Keramatipour Mohammad M
Iranian biomedical journal 20160725 5
<h4>Background</h4>Progressive encephalopathy with or without lipodystrophy is a rare autosomal recessive childhood-onset seipin-associated neurodegenerative syndrome, leading to developmental regression of motor and cognitive skills. In this study, we introduce a patient with developmental regression and autism. The causative mutation was found by exome sequencing.<h4>Methods</h4>The proband showed a generalized hypertonia and regression of all developmental milestones. Based on the advantages ...[more]