Evidence map›Paper›PMID 33646158›Full record

ArticleJournal of Alzheimer's disease : JAD2021

The Effect of GBA Mutations and APOE Polymorphisms on Dementia with Lewy Bodies in Ashkenazi Jews.

Tamara Shiner, Anat Mirelman, Yevgenia Rosenblum, Gitit Kavé, Mali Gana Weisz, Anat Bar-Shira, Orly Goldstein, Avner Thaler, Tanya Gurevich, Avi Orr-Urtreger and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Effect of GBA gene variants on clinical characteristics of dementia with Lewy bodies: a review and meta-analyses.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Pooled it
  2. Effect of genetic factors on [European journal of nuclear medicine and molecular imaging · 2026
    Article
  3. The role ofFrontiers in neuroscience · 2025
    Review
  4. Review
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  6. Review
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  8. GBA-associated Parkinson's disease in Hungary: clinical features and genetic insights.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Article
  9. Review
  10. Article
  11. Article
  12. GBA and APOE Impact Cognitive Decline in Parkinson's Disease: A 10-Year Population-Based Study.Movement disorders : official journal of the Movement Disorder Society · 2022
    Article
  13. Article
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 3 institutions in 1 country.

Tamara ShinerCognitive Neurology Unit, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Anat MirelmanSackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
Yevgenia RosenblumCognitive Neurology Unit, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Gitit KavéCognitive Neurology Unit, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Mali Gana WeiszThe Genomic Research Laboratory for Neurodegeneration, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Anat Bar-ShiraThe Genomic Research Laboratory for Neurodegeneration, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Orly GoldsteinThe Genomic Research Laboratory for Neurodegeneration, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Avner ThalerSackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
Tanya GurevichSackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
Avi Orr-UrtregerSackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
Nir GiladiSackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
Noa BregmanCognitive Neurology Unit, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Tel Aviv University · ILTel Aviv Sourasky Medical Center · ILOpen University of Israel · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlucocerebrosidase (GBA) gene mutations and APOE polymorphisms are common in dementia with Lewy bodies (DLB), however their clinical impact is only partially elucidated.

objectiveTo explore the clinical impact of mutations in the GBA gene and APOE polymorphisms separately and in combination, in a cohort of Ashkenazi Jewish (AJ) patients with DLB.

methodsOne hundred consecutively recruited AJ patients with clinically diagnosed DLB underwent genotyping for GBA mutations and APOE polymorphisms, and performed cognitive and motor clinical assessments.

resultsThirty-two (32%) patients with DLB were carriers of GBA mutations and 33 (33%) carried an APOE ɛ4 allele. GBA mutation carriers had a younger age of onset (mean [SD] age, 67.2 years [8.9] versus 71.97 [5.91]; p = 0.03), poorer cognition as assessed by the Mini-Mental State Examination (21.41 [6.9] versus 23.97 [5.18]; p < 0.005), and more severe parkinsonism as assessed with the Unified Parkinson's Disease Rating Scale motor part III (34.41 [13.49] versus 28.38 [11.21]; p = 0.01) compared to non-carriers. There were statistically significant interactions between the two genetic factors, so that patients who carried both a mild GBA mutation and the APOE ɛ4 allele (n = 9) had more severe cognitive (p = 0.048) and motor dysfunction (p = 0.037).

conclusionWe found a high frequency of both GBA mutations and the APOE ɛ4 allele among AJ patients with DLB, both of which have distinct effects on the clinical disease phenotype, separately and in combination.

Indexed as

AdultAgedAged, 80 and overApolipoproteins EFemaleGenotypeGlucosylceramidaseHeterozygoteHumansJewsLewy Body DiseaseMaleMiddle AgedMutationPolymorphism, Single NucleotideApoE protein, humanApolipoproteins EGBA protein, humanGlucosylceramidaseApolipoproteindementiaglucocerebrosidaseLewy body diseaseparkinsonism

Identifiers

PMID33646158
PMCPMC8150431
OpenAlexW3133664310

What OpenQuestion holds

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LicenceCC BY-NC
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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.