Evidence map›Paper›PMID 37516977›Full record

ArticleCardiovascular research2023

Immediate and sustained increases in the activity of vagal preganglionic neurons during exercise and after exercise training.

Alla Korsak, Daniel O Kellett, Qadeer Aziz, Cali Anderson, Alicia D'Souza, Andrew Tinker, Gareth L Ackland, Alexander V Gourine

Open access · hybridAbstract read
In one paragraph

Article in Cardiovascular research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 pooled it
7.2field-weighted citation impact, top 2% 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

17 citing papers in PubMed, 3 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Transcutaneous vagus nerve stimulation and exercise-induced autonomic regulation: a systematic review.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Pooled it
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  4. Review
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  9. Cardiac vagal motor neurons.Current opinion in neurobiology · 2025
    Review
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  11. GABAiScience · 2025
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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

8 authors at 3 institutions in 1 country.

Alla KorsakCentre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology and Pharmacology, University College London, Gower Street, London WC1E 6BT, UK.
Daniel O KellettCentre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology and Pharmacology, University College London, Gower Street, London WC1E 6BT, UK.
Qadeer AzizCentre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology and Pharmacology, University College London, Gower Street, London WC1E 6BT, UK.ORCID 0000-0002-7636-6813
Cali AndersonDivision of Cardiovascular Sciences, University of Manchester, Manchester, UK.
Alicia D'SouzaDivision of Cardiovascular Sciences, University of Manchester, Manchester, UK.
Andrew TinkerCentre for Clinical Pharmacology and Precision Medicine, William Harvey Research Institute, Queen Mary University of London, London, UK.ORCID 0000-0001-7703-4151
Gareth L AcklandTranslational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK.
Alexander V GourineCentre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology and Pharmacology, University College London, Gower Street, London WC1E 6BT, UK.ORCID 0000-0003-3068-491X
Queen Mary University of London · GBUniversity College London · GBUniversity of Manchester · GB

Funding

British Heart Foundation FS/17/67/33483British Heart Foundation FS/19/1/34035British Heart Foundation RG/19/5/34463Wellcome TrustWellcome Trust 200893/Z/16/Z
6 · The paper itself

Abstract

aimsThe brain controls the heart by dynamic recruitment and withdrawal of cardiac parasympathetic (vagal) and sympathetic activity. Autonomic control is essential for the development of cardiovascular responses during exercise, however, the patterns of changes in the activity of the two autonomic limbs, and their functional interactions in orchestrating physiological responses during exercise, are not fully understood. The aim of this study was to characterize changes in vagal parasympathetic drive in response to exercise and exercise training by directly recording the electrical activity of vagal preganglionic neurons in experimental animals (rats). METHODS AND

resultsSingle unit recordings were made using carbon-fibre microelectrodes from the populations of vagal preganglionic neurons of the nucleus ambiguus (NA) and the dorsal vagal motor nucleus of the brainstem. It was found that (i) vagal preganglionic neurons of the NA and the dorsal vagal motor nucleus are strongly activated during bouts of acute exercise, and (ii) exercise training markedly increases the resting activity of both populations of vagal preganglionic neurons and augments the excitatory responses of NA neurons during exercise.

conclusionsThese data show that central vagal drive increases during exercise and provide the first direct neurophysiological evidence that exercise training increases vagal tone. The data argue against the notion of exercise-induced central vagal withdrawal during exercise. We propose that robust increases in the activity of vagal preganglionic neurons during bouts of exercise underlie activity-dependent plasticity, leading to higher resting vagal tone that confers multiple health benefits associated with regular exercise.

Indexed as

Autonomic Fibers, PreganglionicVagus NerveAnimalsHeartMedulla OblongataNeuronsRatsBrainExerciseHeartParasympatheticVagus

Identifiers

PMID37516977
PMCPMC10597628
OpenAlexW4385393038

What OpenQuestion holds

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Registered trials

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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.