Evidence map›Paper›PMID 8782112›Full record

ArticleThe Journal of physiology1996

Vasoactive intestinal polypeptide modulation of nicotinic ACh receptor channels in rat intracardiac neurones.

J Cuevas, D J Adams

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.2field-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

8 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
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  5. Selective modulation of neuronal nicotinic acetylcholine receptor channel subunits by Go-protein subunits.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2005
    Article
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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

2 authors at 1 institution in 1 country.

J CuevasDepartment of Molecular and Cellular Pharmacology, University of Miami, School of Medicine, FL 33101, USA.
D J Adams
University of Miami · US

Funding

IONIC BASIS OF EXCITABILITY IN INTRINSIC CARDIAC NEURONSR01HL035422 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ADAMS, DAVID J · 1986 to 1995
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NHLBI NIH HHS HL-07188NHLBI NIH HHS HL-35422
6 · The paper itself

Abstract

1. The effects of vasoactive intestinal polypeptide (VIP) on isolated parasympathetic neurones of rat intracardiac ganglia were examined under voltage clamp using dialysed and perforated patch whole-cell and excised outside-out membrane patch recording configurations. 2. VIP reversibly potentiated nicotinic ACh-evoked whole-cell currents, with half-maximal potentiation (EC50) obtained with 260 pM VIP. However, VIP had no effect on muscarinic ACh-evoked currents, ATP-evoked currents, or depolarization-activated ionic currents in these neurones. 3. VIP-induced potentiation of nicotinic ACh-evoked whole-cell currents was observed following cell dialysis, and was inhibited reversibly by bath application of the VIP receptor-binding inhibitor L-8-K (5 microM) or the neuronal nicotinic receptor antagonist mecamylamine (3 microM). 4. The signal transduction pathway mediating VIP-induced potentiation of nicotinic ACh-evoked currents involves a guanine nucleotide-binding protein (G-protein) but not cyclic AMP. Intracellular application of 100 microM GDP-beta-S, or pre-incubation of neurones with pertussis toxin, inhibited VIP-induced potentiation of ACh-evoked whole-cell currents. 5. In outside-out membrane patches, co-application of ACh (4 microM) and VIP (4 nM) decreased the duration of closings between bursts and clusters of bursts of ACh single-channel activity relative to control (4 microM, ACh alone). VIP, however, did not alter single ACh receptor channel current amplitude, duration of closings and openings within a burst, or mean burst duration. 6. VIP-induced modification of nicotinic ACh receptor channel kinetics results in an increase in the open-channel probability which is sufficient to account for the VIP-mediated potentiation of nicotinic ACh-evoked whole-cell currents. 7. The potentiation of nicotinic ACh-evoked currents by VIP is likely to account for the altered neuronal activity observed in the mammalian intracardiac ganglia in vivo and consequent changes in heart rate and cardiac contractility.

Indexed as

AcetylcholineAnimalsElectrophysiologyGTP-Binding ProteinsHeartIn Vitro TechniquesIon ChannelsKineticsMembrane PotentialsMyocardiumNeuronsNicotinic AgonistsParasympathetic Nervous SystemPatch-Clamp TechniquesPertussis ToxinRatsAcetylcholineGTP-Binding ProteinsIon ChannelsNicotinic AgonistsPertussis ToxinReceptors, NicotinicVasoactive Intestinal PeptideVirulence Factors, Bordetella

Identifiers

PMID8782112
PMCPMC1158933
OpenAlexW1986379710

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.