RGD Reference Report - Hereditary spastic paraplegia in Greece: characterisation of a previously unexplored population using next-generation sequencing. - Rat Genome Database
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Hereditary spastic paraplegia in Greece: characterisation of a previously unexplored population using next-generation sequencing.

Authors: Lynch, David S  Koutsis, Georgios  Tucci, Arianna  Panas, Marios  Baklou, Markella  Breza, Marianthi  Karadima, Georgia  Houlden, Henry 
Citation: Lynch DS, etal., Eur J Hum Genet. 2016 Jun;24(6):857-63. doi: 10.1038/ejhg.2015.200. Epub 2015 Sep 16.
RGD ID: 12793069
Pubmed: (View Article at PubMed) PMID:26374131
DOI: Full-text: DOI:10.1038/ejhg.2015.200

Hereditary Spastic Paraplegia (HSP) is a syndrome characterised by lower limb spasticity, occurring alone or in association with other neurological manifestations, such as cognitive impairment, seizures, ataxia or neuropathy. HSP occurs worldwide, with different populations having different frequencies of causative genes. The Greek population has not yet been characterised. The purpose of this study was to describe the clinical presentation and molecular epidemiology of the largest cohort of HSP in Greece, comprising 54 patients from 40 families. We used a targeted next-generation sequencing (NGS) approach to genetically assess a proband from each family. We made a genetic diagnosis in >50% of cases and identified 11 novel variants. Variants in SPAST and KIF5A were the most common causes of autosomal dominant HSP, whereas SPG11 and CYP7B1 were the most common cause of autosomal recessive HSP. We identified a novel variant in SPG11, which led to disease with later onset and may be unique to the Greek population and report the first nonsense mutation in KIF5A. Interestingly, the frequency of HSP mutations in the Greek population, which is relatively isolated, was very similar to other European populations. We confirm that NGS approaches are an efficient diagnostic tool and should be employed early in the assessment of HSP patients.

Annotation

Disease Annotations    

Objects Annotated

Genes (Rattus norvegicus)
Kif5a  (kinesin family member 5A)

Genes (Mus musculus)
Kif5a  (kinesin family member 5A)

Genes (Homo sapiens)
KIF5A  (kinesin family member 5A)


Additional Information