Evidence map›Paper›PMID 26900079›Full record

ArticlePsychopharmacology2016

Comparing the discriminative stimulus effects of modulators of GABAA receptors containing α4-δ subunits with those of gaboxadol in rats.

Claudio Zanettini, Jeffrey D Pressly, Miguel H Ibarra, Kelsey R Smith, Lisa R Gerak

Open access · greenAbstract read
In one paragraph

Article in Psychopharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 40% 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

2 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
  2. 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

5 authors at 1 institution in 1 country.

Claudio ZanettiniDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Jeffrey D PresslyDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Miguel H IbarraDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Kelsey R SmithDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Lisa R GerakDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA. gerak@uthscsa.edu.
The University of Texas Health Science Center at San Antonio · US

Funding

Behavioral Effects of Neuroactive SteroidsR01DA017240 · NIDA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI GERAK, LISA R · 2005 to 2014
$1.6M
NIDA NIH HHS R01 DA017240
6 · The paper itself

Abstract

rationaleGaboxadol is a selective agonist at γ-aminobutyric acidA (GABAA) receptors that contain α4-δ subunits, and it produces anxiolytic and sedative effects. Although adverse effects preclude its clinical use, its mechanism of action suggests that those receptors might provide novel therapeutic targets, particularly for modulators of those GABAA receptor subtypes, by retaining therapeutic effects of gaboxadol and not adverse effects.

objectivesThe current study compared discriminative stimulus effects of gaboxadol with those of modulators acting at GABAA receptors containing α4-δ subunits. MATERIALS: Eight rats discriminated 5.6 mg/kg gaboxadol from vehicle while responding under a fixed - ratio 10 schedule for food. Modulators acting at GABAA receptors containing α4-δ subunits (pregnanolone, ethanol, and flumazenil) and receptors that do not contain those subunits (midazolam) were studied alone; pregnanolone and ethanol were also combined with gaboxadol. In addition, gaboxadol was studied in separate groups discriminating 0.32 mg/kg midazolam, 3.2 mg/kg pregnanolone, or 0.75 g/kg ethanol from vehicle.

resultsGaboxadol produced ≥80 % gaboxadol-lever responding and did not alter rates. No other drug produced, on average, ≥80 % drug-lever responding up to doses that decreased rates, although 1.78 mg/kg midazolam produced 32 % gaboxadol-lever responding. Ethanol and pregnanolone did not enhance the effects of gaboxadol. Rats discriminating midazolam, pregnanolone, or ethanol from vehicle responded predominantly on the vehicle lever after receiving gaboxadol.

conclusionsDrugs that modulate GABAA receptors containing α4-δ subunits neither mimicked nor enhanced the discriminative stimulus effects of gaboxadol, indicating that at least some effects of gaboxadol are not shared with modulators of that GABAA receptor subtype.

Indexed as

AnimalsDose-Response Relationship, DrugEthanolFlumazenilGABA AgonistsGABA ModulatorsIsoxazolesMaleMidazolamPregnanoloneProtein SubunitsRatsReceptors, GABA-AEthanolFlumazenilGABA AgonistsGABA ModulatorsgaboxadolIsoxazolesMidazolamPregnanoloneProtein SubunitsReceptors, GABA-ADrug discriminationEthanolFlumazenilGABAA receptorsGaboxadolNeuroactive steroidsRats

Identifiers

PMID26900079
PMCPMC5054722
OpenAlexW2277588283

What OpenQuestion holds

Textmetadata
LicenceTDM
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.