Evidence map›Paper›PMID 26096906›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2015

No evidence for substrate accumulation in Parkinson brains with GBA mutations.

Matthew E Gegg, Lindsay Sweet, Bing H Wang, Lamya S Shihabuddin, Sergio Pablo Sardi, Anthony H V Schapira

Open access · hybridAbstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
5.8field-weighted citation impact, top 4% 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

82 citing papers in PubMed, 138 citations in OpenAlex.

  1. Review
  2. Review
  3. Serum phosphorylated tau 217 inJournal of Parkinson's disease · 2026
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  10. Review
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  12. Review
  13. Phenotypic consequences of GBA1 pathological variant R463C (p.R502C).American journal of medical genetics. Part A · 2024
    Article
  14. A PIKfyve modulator combined with an integrated stress response inhibitor to treat lysosomal storage diseases.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  15. Article
  16. International journal of molecular sciences · 2024
    Review
  17. Article
  18. Article
  19. Review
  20. Article

22 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Matthew E GeggDepartment of Clinical Neuroscience, UCL Institute of Neurology, London, UK.
Lindsay SweetGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Bing H WangGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Lamya S ShihabuddinGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Sergio Pablo SardiGenzyme, a Sanofi Company, Framingham, Massachusetts, USA.
Anthony H V SchapiraDepartment of Clinical Neuroscience, UCL Institute of Neurology, London, UK.
University College London · GB

Funding

Medical Research Council MC_G1000735Medical Research Council MR/L501499/1Parkinson's UK G-1104Wellcome Trust 089698
6 · The paper itself

Abstract

backgroundTo establish whether Parkinson's disease (PD) brains previously described to have decreased glucocerebrosidase activity exhibit accumulation of the lysosomal enzyme's substrate, glucosylceramide, or other changes in lipid composition.

methodsLipidomic analyses and cholesterol measurements were performed on the putamen (n = 5-7) and cerebellum (n = 7-14) of controls, Parkinson's disease brains with heterozygote GBA1 mutations (PD+GBA), or sporadic PD.

resultsTotal glucosylceramide levels were unchanged in both PD+GBA and sporadic PD brains when compared with controls. No changes in glucosylsphingosine (deacetylated glucosylceramide), sphingomyelin, gangliosides (GM2, GM3), or total cholesterol were observed in either putamen or cerebellum.

conclusionsThis study did not demonstrate glucocerebrosidase substrate accumulation in PD brains with heterozygote GBA1 mutations in areas of the brain with low α-synuclein pathology.

Indexed as

Tissue Banksbeta-GlucosidaseCerebellumGlucosylceramidaseHumansMutationPutamenbeta-GlucosidaseGlucosylceramidaseglucocerebrosidaselysosomesParkinson's diseasesphingolipids

Identifiers

PMID26096906
PMCPMC4529481
OpenAlexW1558432922

What OpenQuestion holds

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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.