Clinical case of epilepsy, hearing loss and mental retardation syndrome associated with mutations in SPATA5 gene

Abstract

We present the clinical case of patient with epilepsy, developmental retardation and hearing loss. The whole exome sequencing allowed to reveal compound heterozygous variants of the nucleotide sequence in SPATA5 gene (c.1714+1G>A, c.1678G>A). Mutations in the SPATA5 gene have been described in patients with epilepsy, hearing loss and mental retardation syndrome (MIM 616577). Paired parents were carriers of one heterozygous gene variant. Such mutations lead to the development of epileptic disorders in 3% of cases, and should be considered in patients not only as a possible cause of neurodegenerative diseases, but also leading to pathology with clinical manifestations mimicking mitochondrial disease.

Keywords

• epilepsy
• microcephaly
• hearing loss
• mental retardation
• whole exome sequencing