Evidence map›Paper›PMID 25120944›Full record

ArticleTremor and other hyperkinetic movements (New York, N.Y.)2014

The GABA Hypothesis in Essential Tremor: Lights and Shadows.

Alexandre Gironell

Open access · greenAbstract read
In one paragraph

Article in Tremor and other hyperkinetic movements (New York, N.Y.), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 7% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Sodium Oxybate in Alcohol-Responsive Essential Tremor of Voice: An Open-Label Phase II Study.Movement disorders : official journal of the Movement Disorder Society · 2023
    Trial
  3. SAGE-217, A Novel GABAClinical pharmacokinetics · 2020
    Trial
  4. Article
  5. Pathophysiological Role of Primary Motor Cortex in Essential Tremor.Movement disorders : official journal of the Movement Disorder Society · 2025
    Article
  6. Review
  7. Article
  8. Phenols and GABAFrontiers in pharmacology · 2024
    Review
  9. Article
  10. A NovelGenes · 2023
    Article
  11. Article
  12. Cerebellar α6GABANeurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Article
  13. Review
  14. Alcohol and Ganaxolone Suppress Tremor via Extra-Synaptic GABATremor and other hyperkinetic movements (New York, N.Y.) · 2023
    Article
  15. Developing a Staging Scheme for Essential Tremor: A Discussion of Organizing Principles.Tremor and other hyperkinetic movements (New York, N.Y.) · 2023
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

1 author at 1 institution in 1 country.

Alexandre GironellMovement Disorders Unit, Department of Neurology, Sant Pau Hospital, Autonomous University of Barcelona, Catalonia, Spain.
Universitat Autònoma de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe gamma-aminobutyric acid (GABA) hypothesis in essential tremor (ET) implies a disturbance of the GABAergic system, especially involving the cerebellum. This review examines the evidence of the GABA hypothesis.

methodsThe review is based on published data about GABA dysfunction in ET, taking into account studies on cerebrospinal fluid, pathology, electrophysiology, genetics, neuroimaging, experimental animal models, and human drug therapies.

resultsFindings from several studies support the GABA hypothesis in ET. The hypothesis follows four steps: 1) cerebellar neurodegeneration with Purkinje cell loss; 2) a decrease in GABA system activity in deep cerebellar neurons; 3) disinhibition in output deep cerebellar neurons with pacemaker activity; and 4) an increase in rhythmic activity of the thalamus and thalamo-cortical circuit, contributing to the generation of tremor. Doubts have been cast on this hypothesis, however, by the fact that it is based on relatively few works, controversial post-mortem findings, and negative genetic studies on the GABA system. Furthermore, GABAergic drug efficacy is low and some GABAergic drugs do not have antitremoric efficacy. DISCUSSION: The GABA hypothesis continues to be the most robust pathophysiological hypothesis to explain ET. There is light in all GABA hypothesis steps, but a number of shadows cannot be overlooked. We need more studies to clarify the neurodegenerative nature of the disease, to confirm the decrease of GABA activity in the cerebellum, and to test more therapies that enhance the GABA transmission specifically in the cerebellum area.

Indexed as

essential tremorGABAgamma-aminobutyric acid

Identifiers

PMID25120944
PMCPMC4108714
OpenAlexW2104648537

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.