Evidence map›Paper›PMID 24062179›Full record

ArticleNeurochemical research2014

GABAA-R α4 subunits are required for the low dose locomotor stimulatory effect of alphaxalone, but not for several other behavioral responses to alphaxalone, etomidate or propofol.

Sangeetha V Iyer, Dave Chandra, Gregg E Homanics

Abstract read
In one paragraph

Article in Neurochemical research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.1field-weighted citation impact, top 53% 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

6 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. GABAAmerican journal of physiology. Lung cellular and molecular physiology · 2017
    Article
  5. Article
  6. 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

3 authors at 2 institutions in 1 country.

Sangeetha V IyerDepartment of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA.
Dave Chandra
Gregg E Homanics
University of Pittsburgh · USThe University of Texas at Austin · US

Funding

SITES AND MECHANISMS OF INHALED ANESTHETIC ACTIONSP01GM047818 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SONNER, JAMES MICHAEL · 1994 to 2008
$11.0M
Ethanol Mechanisms in GABAAR Gene Targeted MiceR37AA010422 · NIAAA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HOMANICS, GREGG E. · 2010 to 2019
$4.4M
GABAa-R Alpha4 Subunit in Ethanol-Related BehaviorsR01AA013004 · NIAAA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HOMANICS, GREGG E · 2002 to 2006
$1.9M
NIAAA NIH HHS R01 AA013004NIAAA NIH HHS R37 AA010422NIGMS NIH HHS P01 GM047818
6 · The paper itself

Abstract

γ-Aminobutyric acid type A receptors (GABAA-Rs) are considered to be the primary molecular targets of injectable anesthetics such as propofol, etomidate and the neurosteriod, alphaxalone. A number of studies have sought to understand the specific GABAA-R subtypes involved in the mechanism of action of these three drugs. Here, we investigated the role of α4-subunit containing GABAA-Rs in the neurobehavioral responses to these drugs. Drug responses in α4 subunit knockout (KO) mice were compared to wild type (WT) littermate controls. While etomidate and propofol are currently used as injectable anesthetics, alphaxalone belongs to the class of neurosteroid drugs having anesthetic effects. Low dose effects of etomidate and alphaxalone were studied using an open field assay. The moderate and high dose effects of all three anesthetics were measured using the rotarod and loss of righting reflex assays, respectively. The locomotor stimulatory effect of alphaxalone was reduced significantly in α4 KO mice compared to WT controls. Neither the low dose sedating effect of etomidate, nor the moderate/high dose effect of any of the drugs differed between genotypes. These results suggest that α4 subunit-containing GABAA-Rs are required for the low dose, locomotor stimulatory effect of alphaxalone but are not required for the sedating effect of etomidate or the moderate/high dose effects of etomidate, propofol or alphaxalone on motor ataxia and loss of righting reflex.

Indexed as

AnestheticsAnimalsEtomidateFemaleMaleMiceMice, 129 StrainMice, Inbred C57BLMice, KnockoutMotor ActivityPregnanedionesPropofolProtein SubunitsReceptors, GABA-AalphaxaloneAnestheticsEtomidateGabra4 protein, mousePregnanedionesPropofolProtein SubunitsReceptors, GABA-A

Identifiers

PMID24062179
PMCPMC3964144
OpenAlexW1987573984

What OpenQuestion holds

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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.