期刊
CURRENT OPINION IN NEUROLOGY
卷 27, 期 1, 页码 98-104出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/WCO.0000000000000053
关键词
cerebellar ataxias; dizziness; genetics studies; vestibular disorders
资金
- ISCIII [PI10/00920]
- Andalusian Health System [CSBS-242-2012]
- European Regional Development Fund (FEDER)
Purpose of reviewRecent advances in next generation sequencing techniques (NGS) are increasing the number of novel genes associated with cerebellar and vestibular disorders. We have summarized clinical and molecular genetics findings in neuro-otolology during the last 2 years.Recent findingsWhole-exome and targeted sequencing have defined the genetic basis of dizziness including new genes causing ataxia: GBA2, TGM6, ANO10 and SYT14. Novel mutations in KCNA1 and CACNA1A genes are associated with episodic ataxia type 1 and type 2, respectively. Moreover, new variants in genes such as COCH, MYO7A and POU4F3 are associated with nonsyndromic deafness and vestibular dysfunction. Several susceptibility loci have been linked to familial vestibular migraine, suggesting genetic heterogeneity, but no specific gene has been identified. Finally, loci for complex and heterogeneous diseases such as bilateral vestibular hypofunction or familial Meniere disease have not been identified yet, despite their strong familial aggregation.SummaryCerebellar and vestibular disorders leading to dizziness or episodic vertigo may show overlapping clinical features. A deep phenotyping including a complete familial history is a key step in performing a reliable molecular genetic diagnosis using NGS. Personalized molecular medicine will be essential to understand disease mechanisms as well as to improve their diagnosis and treatment.
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