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Early Onset Ataxia with Comorbid Dystonia : Clinical, Anatomical and Biological Pathway Analysis Expose Shared Pathophysiology

Sival, Deborah A ; Garofalo, Martinica ; Brandsma, Rick ; Bokkers, Tom A ; van den Berg, Marloes ; de Koning, Tom J LU ; Tijssen, Marina A J and Verbeek, Dineke S (2020) In Diagnostics 10(12).
Abstract

In degenerative adult onset ataxia (AOA), dystonic comorbidity is attributed to one disease continuum. However, in early adult onset ataxia (EOA), the prevalence and pathogenesis of dystonic comorbidity (EOAD+), are still unclear. In 80 EOA-patients, we determined the EOAD+-prevalence in association with MRI-abnormalities. Subsequently, we explored underlying biological pathways by genetic network and functional enrichment analysis. We checked pathway-outcomes in specific EOAD+-genotypes by comparing results with non-specifically (in-silico-determined) shared genes in up-to-date EOA, AOA and dystonia gene panels (that could concurrently cause ataxia and dystonia). In the majority (65%) of EOA-patients, mild EOAD+-features concurred with... (More)

In degenerative adult onset ataxia (AOA), dystonic comorbidity is attributed to one disease continuum. However, in early adult onset ataxia (EOA), the prevalence and pathogenesis of dystonic comorbidity (EOAD+), are still unclear. In 80 EOA-patients, we determined the EOAD+-prevalence in association with MRI-abnormalities. Subsequently, we explored underlying biological pathways by genetic network and functional enrichment analysis. We checked pathway-outcomes in specific EOAD+-genotypes by comparing results with non-specifically (in-silico-determined) shared genes in up-to-date EOA, AOA and dystonia gene panels (that could concurrently cause ataxia and dystonia). In the majority (65%) of EOA-patients, mild EOAD+-features concurred with extra-cerebellar MRI abnormalities (at pons and/or basal-ganglia and/or thalamus (p = 0.001)). Genetic network and functional enrichment analysis in EOAD+-genotypes indicated an association with organelle- and cellular-component organization (important for energy production and signal transduction). In non-specifically, in-silico-determined shared EOA, AOA and dystonia genes, pathways were enriched for Krebs-cycle and fatty acid/lipid-metabolic processes. In frequently occurring EOAD+-phenotypes, clinical, anatomical and biological pathway analyses reveal shared pathophysiology between ataxia and dystonia, associated with cellular energy metabolism and network signal transduction. Insight in the underlying pathophysiology of heterogeneous EOAD+-phenotype-genotype relationships supports the rationale for testing with complete, up-to-date movement disorder gene lists, instead of single EOA gene-panels.

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author
; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Diagnostics
volume
10
issue
12
publisher
MDPI AG
external identifiers
  • pmid:33255407
  • scopus:85109099426
ISSN
2075-4418
DOI
10.3390/diagnostics10120997
language
English
LU publication?
no
id
5d12ff33-5e38-4065-9a1b-8848d9324fb4
date added to LUP
2020-12-10 14:16:33
date last changed
2024-04-03 18:55:34
@article{5d12ff33-5e38-4065-9a1b-8848d9324fb4,
  abstract     = {{<p>In degenerative adult onset ataxia (AOA), dystonic comorbidity is attributed to one disease continuum. However, in early adult onset ataxia (EOA), the prevalence and pathogenesis of dystonic comorbidity (EOAD+), are still unclear. In 80 EOA-patients, we determined the EOAD+-prevalence in association with MRI-abnormalities. Subsequently, we explored underlying biological pathways by genetic network and functional enrichment analysis. We checked pathway-outcomes in specific EOAD+-genotypes by comparing results with non-specifically (in-silico-determined) shared genes in up-to-date EOA, AOA and dystonia gene panels (that could concurrently cause ataxia and dystonia). In the majority (65%) of EOA-patients, mild EOAD+-features concurred with extra-cerebellar MRI abnormalities (at pons and/or basal-ganglia and/or thalamus (p = 0.001)). Genetic network and functional enrichment analysis in EOAD+-genotypes indicated an association with organelle- and cellular-component organization (important for energy production and signal transduction). In non-specifically, in-silico-determined shared EOA, AOA and dystonia genes, pathways were enriched for Krebs-cycle and fatty acid/lipid-metabolic processes. In frequently occurring EOAD+-phenotypes, clinical, anatomical and biological pathway analyses reveal shared pathophysiology between ataxia and dystonia, associated with cellular energy metabolism and network signal transduction. Insight in the underlying pathophysiology of heterogeneous EOAD+-phenotype-genotype relationships supports the rationale for testing with complete, up-to-date movement disorder gene lists, instead of single EOA gene-panels.</p>}},
  author       = {{Sival, Deborah A and Garofalo, Martinica and Brandsma, Rick and Bokkers, Tom A and van den Berg, Marloes and de Koning, Tom J and Tijssen, Marina A J and Verbeek, Dineke S}},
  issn         = {{2075-4418}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{12}},
  publisher    = {{MDPI AG}},
  series       = {{Diagnostics}},
  title        = {{Early Onset Ataxia with Comorbid Dystonia : Clinical, Anatomical and Biological Pathway Analysis Expose Shared Pathophysiology}},
  url          = {{http://dx.doi.org/10.3390/diagnostics10120997}},
  doi          = {{10.3390/diagnostics10120997}},
  volume       = {{10}},
  year         = {{2020}},
}