Evidence map›Paper›PMID 9880578›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience1999

Effect of zolpidem on miniature IPSCs and occupancy of postsynaptic GABAA receptors in central synapses.

D Perrais, N Ropert

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
3.9field-weighted citation impact, top 5% 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

85 citing papers in PubMed, 193 citations in OpenAlex.

  1. Zolpidem reduces the blood oxygen level-dependent signal during visual system stimulation.Progress in neuro-psychopharmacology & biological psychiatry · 2011
    Trial
  2. GABABiophysical journal · 2024
    Article
  3. Article
  4. Article
  5. Review
  6. Zolpidem Profoundly Augments Spared Tonic GABAFrontiers in systems neuroscience · 2022
    Article
  7. Article
  8. Differential Coassembly of α1-GABAThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  9. Article
  10. Review
  11. Article
  12. Photopotentiation of the GABAProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  13. Paradoxical Motor and Cognitive Function Recovery in Response to Zolpidem in a Patient with Hypoxic-ischemic Brain Injury: A Case Report.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2019
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. GABAergic transmission to kisspeptin neurons is differentially regulated by time of day and estradiol in female mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  20. Article

25 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

2 authors.

D PerraisInstitut Alfred Fessard, Centre National de la Recherche Scientifique UPR 2212, Gif sur Yvette, France.
N Ropert

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

GABAA-mediated miniature IPSCs (mIPSCs) were recorded from layer V pyramidal neurons of the visual cortex using whole-cell patch-clamp recording in rat brain slices. At room temperature, the benzodiazepine site agonist zolpidem enhanced both the amplitude (to 138 +/- 26% of control value at 10 microM) and the duration (163 +/- 14%) of mIPSCs. The enhancement of mIPSC amplitude was not caused by an increase of the single-channel conductance of the postsynaptic receptors, as determined by peak-scaled non-stationary fluctuation analysis of mIPSCs. The effect of zolpidem on fast, synaptic-like (1 msec duration) applications of GABA to outside-out patches was also investigated. The EC50 for fast GABA applications was 310 microM. In patches, zolpidem enhanced the amplitude of currents elicited by subsaturating GABA applications (100-300 microM) but not by saturating applications (10 mM). The increase of mIPSC amplitude by zolpidem provides evidence that the GABAA receptors are not saturated during miniature synaptic transmission in the recorded cells. By comparing the facilitation induced by 1 microM zolpidem on outside-out patches and mIPSCs, we estimated the concentration of GABA seen by the postsynaptic GABAA receptors to be approximately 300 microM after single vesicle release. We have estimated a similar degree of receptor occupancy at room and physiological temperature. However, at 35 degreesC, zolpidem did not enhance the amplitude of mIPSCs or of subsaturating GABA applications on patches, implying that, in these neurons, zolpidem cannot be used to probe the degree of receptor occupancy at physiological temperature.

Indexed as

AlgorithmsAnimalsElectrophysiologyEvoked PotentialsGABA AgonistsGABA-A Receptor Agonistsgamma-Aminobutyric AcidIn Vitro TechniquesMalePatch-Clamp TechniquesPyramidal CellsPyridinesRatsRats, WistarReceptors, GABA-ASynapsesGABA AgonistsGABA-A Receptor Agonistsgamma-Aminobutyric AcidPyridinesReceptors, GABA-AZolpidem

Identifiers

PMID9880578
PMCPMC6782193
OpenAlexW2171788395

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.