Evidence map›Paper›PMID 29800749›Full record

ArticleHeart rhythm2018

Electrophysiological effects of nicotinic and electrical stimulation of intrinsic cardiac ganglia in the absence of extrinsic autonomic nerves in the rabbit heart.

Emily Allen, John H Coote, Blair D Grubb, Trevor F C Batten, Dainius H Pauza, G André Ng, Kieran E Brack

Open access · hybridAbstract read
In one paragraph

Article in Heart rhythm, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 28 citations in OpenAlex.

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  8. Autonomic modulation impacts conduction velocity dynamics and wavefront propagation in the left atrium.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2024
    Article
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  10. Cardiovascular Brain Circuits.Circulation research · 2023
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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

7 authors at 5 institutions in 2 countries.

Emily AllenDepartment of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Leicester, United Kingdom; NIHR Leicester BRC, Glenfield Hospital, Leicester, United Kingdom.
John H CooteDepartment of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Leicester, United Kingdom.
Blair D GrubbInstitute of Life and Human Sciences, University of Liverpool, Liverpool, United Kingdom.
Trevor F C BattenAF3, Leeds Trinity University, Leeds, United Kingdom.
Dainius H PauzaInstitute of Anatomy, Lithuanian University of Health Sciences, Kaunas, Lithuania.
G André NgDepartment of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Leicester, United Kingdom; NIHR Leicester BRC, Glenfield Hospital, Leicester, United Kingdom. Electronic address: gan1@leicester.ac.uk.
Kieran E BrackDepartment of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Leicester, United Kingdom; NIHR Leicester BRC, Glenfield Hospital, Leicester, United Kingdom.
Glenfield Hospital · GBUniversity of Leicester · GBLeeds Trinity University · GBLithuanian University of Health Sciences · LTUniversity of Liverpool · GB

Funding

British Heart Foundation FS12/2/29300British Heart Foundation PG/13/57/30385British Heart Foundation RG/17/3/32774
6 · The paper itself

Abstract

backgroundThe intrinsic cardiac nervous system is a rich network of cardiac nerves that converge to form distinct ganglia and extend across the heart and is capable of influencing cardiac function.

objectiveThe goals of this study were to provide a complete picture of the neurotransmitter/neuromodulator profile of the rabbit intrinsic cardiac nervous system and to determine the influence of spatially divergent ganglia on cardiac electrophysiology.

methodsNicotinic or electrical stimulation was applied at discrete sites of the intrinsic cardiac nerve plexus in the Langendorff-perfused rabbit heart. Functional effects on sinus rate and atrioventricular conduction were measured. Immunohistochemistry for choline acetyltransferase (ChAT), tyrosine hydroxylase, and/or neuronal nitric oxide synthase (nNOS) was performed using whole mount preparations.

resultsStimulation within all ganglia produced either bradycardia, tachycardia, or a biphasic brady-tachycardia. Electrical stimulation of the right atrial and right neuronal cluster regions produced the largest chronotropic responses. Significant prolongation of atrioventricular conduction was predominant at the pulmonary vein-caudal vein region. Neurons immunoreactive (IR) only for ChAT, tyrosine hydroxylase, or nNOS were consistently located within the limits of the hilum and at the roots of the right cranial and right pulmonary veins. ChAT-IR neurons were most abundant (1946 ± 668 neurons). Neurons IR only for nNOS were distributed within ganglia.

conclusionStimulation of intrinsic ganglia, shown to be of phenotypic complexity but predominantly of cholinergic nature, indicates that clusters of neurons are capable of independent selective effects on cardiac electrophysiology, therefore providing a potential therapeutic target for the prevention and treatment of cardiac disease.

Indexed as

AnimalsDisease Models, AnimalElectric StimulationGanglia, AutonomicGanglionic StimulantsHeart AtriaHeart Conduction SystemImmunohistochemistryMaleMyocardiumNicotineNitric Oxide Synthase Type IRabbitsGanglionic StimulantsNicotineNitric Oxide Synthase Type ICholine acetyltransferaseElectrophysiologyGanglionic plexusHeartIntrinsic cardiac gangliaNeuronal nitric oxide synthaseTyrosine hydroxylase

Identifiers

PMID29800749
PMCPMC6207532
OpenAlexW2804635995

What OpenQuestion holds

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LicenceCC BY
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.