Evidence map›Paper›PMID 21993619›Full record

ArticleJournal of neurology2012

New findings in the ataxia of Charlevoix-Saguenay.

José Gazulla, Isabel Benavente, Ana Carmen Vela, Miguel Angel Marín, Luis Emilio Pablo, Alessandra Tessa, María Rosario Barrena, Filippo Maria Santorelli, Claudia Nesti, Pedro Modrego and 2 more

Abstract read
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In one paragraph

Article in Journal of neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.9field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. A novel SACS p.Pro4154GlnfsTer20 mutation in a family with autosomal recessive spastic ataxia of Charlevoix-Saguenay.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Ataxia.Neurologic clinics · 2015
    Review
  19. Cerebellum and neuropsychiatric disorders: insights from ARSACS.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2014
    Article
  20. Inherited neuropathies: an update.Journal of neurology · 2013
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 2 countries.

José GazullaService of Neurology, Hospital Universitario Miguel Servet, Avenida Isabel la Católica, 1-3, 50009, Zaragoza, Spain. josegazulla@gmail.com
Isabel Benavente
Ana Carmen Vela
Miguel Angel Marín
Luis Emilio Pablo
Alessandra Tessa
María Rosario Barrena
Filippo Maria Santorelli
Claudia Nesti
Pedro Modrego
María Tintoré
José Berciano
Hospital Universitario Miguel Servet · ESFondazione Stella Maris · ITCentro de Investigación Biomédica en Red · ESHospital General San Jorge · ESInstitute for Research in Biomedicine · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of the study was to enhance our understanding of the pathogenesis of the ataxia of Charlevoix-Saguenay, based on the findings presented herein. Five patients with a molecular diagnosis of this disease underwent clinical, radiological, ophthalmologic and electrophysiological examinations. Five novel mutations, which included nonsense and missense variants, were identified, with these resulting in milder phenotypes. In addition to the usual manifestations, a straight dorsal spine was found in every case, and imaging techniques showed loss of the dorsal kyphosis. Cranial MRI demonstrated hypointense linear striations at the pons. Tensor diffusion MRI sequences revealed that these striations corresponded with hyperplastic pontocerebellar fibres, and tractographic sequences showed interrupted pyramidal tracts at the pons. Ocular coherence tomography demonstrated abnormal thickness of the nerve fibre layer. Electrophysiological studies showed nerve conduction abnormalities compatible with a dysmyelinating neuropathy, with signs of chronic denervation in distal muscles. The authors suggest that the hyperplastic pontocerebellar fibres compress the pyramidal tracts at the pons, and that the amount of retinal fibres traversing the optic discs is enlarged. These facts point to the contribution of an abnormal developmental mechanism in the ataxia of Charlevoix-Saguenay. Accordingly, spasticity would be mediated by compression of the pyramidal tracts, neuromuscular symptoms by secondary axonal degeneration superimposed on the peripheral myelinopathy, while the cause of the progressive ataxia remains speculative. The distinctive aspect of the dorsal spine could be of help in the clinical diagnosis.

Indexed as

AdultBrainDiffusion Magnetic Resonance ImagingDisease ProgressionFemaleHeat-Shock ProteinsHumansMaleMiddle AgedMuscle SpasticityMutationNeural ConductionRadiographySpinocerebellar AtaxiasTomography, Optical CoherenceHeat-Shock ProteinsSACS protein, human

Identifiers

PMID21993619
OpenAlexW1990605703

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.