Evidence map›Paper›PMID 15626699›Full record

ArticleBiophysical journal2005

GABAA receptor kinetics in the cerebellar nuclei: evidence for detection of transmitter from distant release sites.

Jason R Pugh, Indira M Raman

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
0.3field-weighted citation impact, top 54% 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

37 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. The cerebellar deep nuclei: a patch for rate codes?Frontiers in neural circuits · 2025
    Article
  3. Review
  4. Structural and functional reorganization of inhibitory synapses by activity-dependent cleavage of neuroligin-2.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  5. Review
  6. Article
  7. Significance of GABAInternational journal of molecular sciences · 2021
    Review
  8. Article
  9. Temporal dynamics of learning-promoted synaptic diversity in CA1 pyramidal neurons.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  10. Mechanisms of GABAScientific reports · 2019
    Article
  11. Article
  12. Article
  13. Changes in membrane properties of rat deep cerebellar nuclear projection neurons during acquisition of eyeblink conditioning.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Jason R PughInstitute for Neuroscience, Northwestern University, Evanston, IL 60208, USA.
Indira M Raman
Northwestern University · US

Funding

IONIC CURRENTS AND SPIKING IN CEREBELLAR NUCLEAR NEURONSR01NS039395 · NINDS · NORTHWESTERN UNIVERSITY · PI RAMAN, INDIRA M · 2000 to 2012
$3.7M
Ionic currents and spiking in cerebellar nuclear neuronsR37NS039395 · NINDS · NORTHWESTERN UNIVERSITY · PI RAMAN, INDIRA M · 2014 to 2019
$3.3M
Ionic currents and spiking in cerebellar nuclear neuronsR56NS039395 · NINDS · NORTHWESTERN UNIVERSITY · PI RAMAN, INDIRA M · 2013 to 2013
$465k
NINDS NIH HHS NS39395NINDS NIH HHS R01 NS039395NINDS NIH HHS R37 NS039395NINDS NIH HHS R56 NS039395
6 · The paper itself

Abstract

Neurons of the cerebellar nuclei receive GABAergic input from Purkinje cells. Purkinje boutons have several closely spaced presynaptic densities without GABA transporters, raising the possibility that neurotransmitter released by one presynaptic site diffuses to multiple postsynaptic sites. To test whether such local spillover may contribute to transmission, we studied gating of GABA(A) receptors at 31-33 degrees C in cerebellar nuclear neurons acutely dissociated from mice. Currents were evoked by rapid application of long steps, brief pulses, and high-frequency trains of GABA to outside-out patches. Receptors desensitized and deactivated rapidly, and dose-response measurements estimated an EC(50) of approximately 30 microM. From these data, a kinetic scheme was developed that replicated the recorded currents. Next, we simulated diffusion of GABA in the synaptic cleft, constrained by previous electron microscopic data, and drove the kinetic GABA(A) receptor model with modeled concentration transients. Simulations predicted receptor occupancies of approximately 100% directly opposite the release site and approximately 50% at distant postsynaptic densities, such that receptors up to 700 nm from a release site opened on the timescale of the inhibitory postsynaptic currents before desensitizing. Further simulations of probabilistic release from multiple-site boutons suggested that local spillover-mediated transmission slows the onset and limits the extent of depression during high-frequency signaling.

Indexed as

Models, NeurologicalAction PotentialsAnimalsCells, CulturedCerebellar NucleiComputer SimulationExcitatory Postsynaptic Potentialsgamma-Aminobutyric AcidKineticsMembrane PotentialsMiceMice, Inbred C57BLNeuronsNeurotransmitter AgentsReceptors, GABA-ASynaptic Transmissiongamma-Aminobutyric AcidNeurotransmitter AgentsReceptors, GABA-A

Identifiers

PMID15626699
PMCPMC1305230
OpenAlexW1973561961

What OpenQuestion holds

Textmetadata
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.