Evidence map›Paper›PMID 22309577›Full record

ArticleJournal of neurochemistry2012

Modulation of recombinant, α2*, α3* or α4*-nicotinic acetylcholine receptor (nAChR) function by nAChR β3 subunits.

Bhagirathi Dash, Minoti Bhakta, Yongchang Chang, Ronald J Lukas

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 33 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Bhagirathi DashDivision of Neurobiology, Barrow Neurological Institute, Phoenix, Arizona, USA.
Minoti Bhakta
Yongchang Chang
Ronald J Lukas
Barrow Neurological Institute · US

Funding

Molecular Bases for Effects of NicotineR01DA015389 · NIDA · ST. JOSEPH'S HOSPITAL AND MEDICAL CENTER · PI LUKAS, RONALD J · 2003 to 2007
$1.6M
Structural dynamics underlying rho1 GABAC receptor activation and antagonismR01GM085237 · NIGMS · ST. JOSEPH'S HOSPITAL AND MEDICAL CENTER · PI CHANG, YONGCHANG · 2010 to 2014
$1.2M
NIDA NIH HHS R01 DA015389NIGMS NIH HHS R01 GM085237
6 · The paper itself

Abstract

The nicotinic acetylcholine receptor (nAChR) β3 subunit is thought to serve an accessory role in nAChR subtypes expressed in dopaminergic regions implicated in drug dependence and reward. When β3 subunits are expressed in excess, they have a dominant-negative effect on function of selected nAChR subtypes. In this study, we show, in Xenopus oocytes expressing α2, α3 or α4 plus either β2 or β4 subunits, that in the presumed presence of similar amounts of each nAChR subunit, co-expression with wild-type β3 subunits generally (except for α3*-nAChR) lowers amplitudes of agonist-evoked, inward peak currents by 20-50% without having dramatic effects (≤ 2-fold) on agonist potencies. By contrast, co-expression with mutant β3(V9'S) subunits generally (except for α4β2*-nAChR) increases agonist potencies, consistent with an expected gain-of-function effect. This most dramatically demonstrates formation of complexes containing three kinds of subunit. Moreover, for oocytes expressing nAChR containing any α subunit plus β4 and β3(V9'S) subunits, there is spontaneous channel opening sensitive to blockade by the open channel blocker, atropine. Collectively, the results indicate that β3 subunits integrate into all of the studied receptor assemblies and suggest that natural co-expression with β3 subunits can influence levels of expression and agonist sensitivities of several nAChR subtypes.

Indexed as

AcetylcholineAnimalsAtropineCloning, MolecularData Interpretation, StatisticalFemaleHumansIon Channel GatingMuscarinic AntagonistsMutagenesisMutationNicotineNicotinic AgonistsOocytesPatch-Clamp TechniquesPlasmidsAcetylcholineAtropineMuscarinic AntagonistsNicotineNicotinic Agonistsnicotinic receptor subunit alpha2, Xenopusnicotinic receptor subunit beta3, XenopusReceptors, NicotinicRNA, ComplementaryXenopus Proteins

Identifiers

PMID22309577
PMCPMC3569009
OpenAlexW1524800071

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.