ArticleEuropean journal of human genetics : EJHG2023
Analysis of Fibroblast Growth Factor 14 (FGF14) structural variants reveals the genetic basis of the early onset nystagmus locus NYS4 and variable ataxia.
Article in European journal of human genetics : EJHG, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 11 citations in OpenAlex.
- Phenotypic spectrum of FGF14-related late-onset ataxia: predominant tremor and cognitive decline as key features of SCA27A.Journal of neurology · 2026Article
- Spinocerebellar Ataxia 27 A with Episodic Ataxia: Case Series of Fibroblast Growth Factor 14 (FGF14) Microdeletions.Cerebellum (London, England) · 2025Article
- Recent Advances in the Genetics of Ataxias: An Update on Novel Autosomal Dominant Repeat Expansions.Current neurology and neuroscience reports · 2025Review
- An Update on the Adult-Onset Hereditary Cerebellar Ataxias: Novel Genetic Causes and New Diagnostic Approaches.Cerebellum (London, England) · 2024Review
- 2023 in the European Journal of Human Genetics.European journal of human genetics : EJHG · 2024Article
- Challenges facing repeat expansion identification, characterisation, and the pathway to discovery.Emerging topics in life sciences · 2023Review
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Authors and funding
9 authors at 6 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Nystagmus (involuntary, rhythmical eye movements) can arise due to sensory eye defects, in association with neurological disorders or as an isolated condition. We identified a family with early onset nystagmus and additional neurological features carrying a partial duplication of FGF14, a gene associated with spinocerebellar ataxia type 27 (SCA27) and episodic ataxia. Detailed eye movement analysis revealed oculomotor anomalies strikingly similar to those reported in a previously described four-generation family with early onset nystagmus and linkage to a region on chromosome 13q31.3-q33.1 (NYS4). Since FGF14 lies within NYS4, we revisited the original pedigree using whole genome sequencing, identifying a 161 kb heterozygous deletion disrupting FGF14 and ITGBL1 in the affected individuals, suggesting an FGF14-related condition. Therefore, our study reveals the genetic variant underlying NYS4, expands the spectrum of pathogenic FGF14 variants, and highlights the importance of screening FGF14 in apparently isolated early onset nystagmus.
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