Evidence map›Paper›PMID 20007460›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

The lysosomal sialic acid transporter sialin is required for normal CNS myelination.

Laura M Prolo, Hannes Vogel, Richard J Reimer

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

43 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
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  8. Lack of significant ganglioside changes inBiochemistry and biophysics reports · 2025
    Article
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  11. Review
  12. Review
  13. Article
  14. Article
  15. Psychiatric symptoms in Salla disease.European child & adolescent psychiatry · 2023
    Review
  16. Article
  17. Review
  18. Review
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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

3 authors at 1 institution in 1 country.

Laura M ProloDepartment of Neurology and Neurological Sciences and Graduate Program in Neuroscience, Stanford University School of Medicine, Stanford, California 94305, USA.
Hannes Vogel
Richard J Reimer
Stanford University · US

Funding

Pathophysiology of Lysosomal Free Sialic Acid Storage DisordersR01NS050417 · NINDS · STANFORD UNIVERSITY · PI REIMER, RICHARD J · 2007 to 2010
$1.4M
Molecular Mechanisms of Vesicular Glutamate TransportK02NS045634 · NINDS · STANFORD UNIVERSITY · PI REIMER, RICHARD J · 2003 to 2007
$731k
How does loss of sialin lead to impaired myelination of the CNS?F30NS065664 · NINDS · STANFORD UNIVERSITY · PI PROLO, LAURA MARIE · 2009 to 2011
$94k
Howard Hughes Medical InstituteNINDS NIH HHS F30 NS065664NINDS NIH HHS K02 NS045634NINDS NIH HHS NS045634NINDS NIH HHS NS050417NINDS NIH HHS NS065664NINDS NIH HHS R01 NS050417
6 · The paper itself

Abstract

Salla disease and infantile sialic acid storage disease are autosomal recessive lysosomal storage disorders caused by mutations in the gene encoding sialin, a membrane protein that transports free sialic acid out of the lysosome after it is cleaved from sialoglycoconjugates undergoing degradation. Accumulation of sialic acid in lysosomes defines these disorders, and the clinical phenotype is characterized by neurodevelopmental defects, including severe CNS hypomyelination. In this study, we used a sialin-deficient mouse to address how loss of sialin leads to the defect in myelination. Behavioral analysis of the sialin(-/-) mouse demonstrates poor coordination, seizures, and premature death. Analysis by histology, electron microscopy, and Western blotting reveals a decrease in myelination of the CNS but normal neuronal cytoarchitecture and normal myelination of the PNS. To investigate potential mechanisms underlying CNS hypomyelination, we studied myelination and oligodendrocyte development in optic nerves. We found reduced numbers of myelinated axons in optic nerves from sialin(-/-) mice, but the myelin that was present appeared grossly normal. Migration and density of oligodendrocyte precursor cells were normal; however, a marked decrease in the number of postmitotic oligodendrocytes and an associated increase in the number of apoptotic cells during the later stages of myelinogenesis were observed. These findings suggest that a defect in maturation of cells in the oligodendrocyte lineage leads to increased apoptosis and underlies the myelination defect associated with sialin loss.

Indexed as

AnimalsApoptosisAxonsBrainCell CountCell MovementLongevityMiceMice, KnockoutMotor ActivityMyelin Basic ProteinMyelin SheathNerve Tissue ProteinsNeuronsOligodendrogliaOptic NerveMbp protein, mouseMyelin Basic ProteinNerve Tissue ProteinsOrganic Anion Transporterssialic acid transport proteinsSymportersTranscription Factors

Identifiers

PMID20007460
PMCPMC2820501
OpenAlexW1989637777

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

Registered trials

None linked

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.