Evidence map›Paper›PMID 28181258›Full record

ArticleThe Journal of physiology2017

Cardiac diastolic and autonomic dysfunction are aggravated by central chemoreflex activation in heart failure with preserved ejection fraction rats.

Camilo Toledo, David C Andrade, Claudia Lucero, Alexis Arce-Alvarez, Hugo S Díaz, Valentín Aliaga, Harold D Schultz, Noah J Marcus, Mónica Manríquez, Marcelo Faúndez and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Autonomic Neuromodulation Acutely Ameliorates Left Ventricular Strain in Humans.Journal of cardiovascular translational research · 2019
    Trial
  3. The pathophysiology of wild-type transthyretin amyloidosis: implications for exercise intolerance.American journal of physiology. Heart and circulatory physiology · 2026
    Review
  4. Article
  5. Neuroimmune interactions in cardiovascular homeostasis and disease.American journal of physiology. Cell physiology · 2026
    Review
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  8. Article
  9. Review
  10. 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

11 authors at 3 institutions in 2 countries.

Camilo ToledoLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.
David C AndradeLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.
Claudia LuceroLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.
Alexis Arce-AlvarezLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.
Hugo S DíazLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.ORCID 0000-0002-1999-9649
Valentín AliagaLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.
Harold D SchultzDepartment of Cellular and Integrative Physiology, University of Nebraska Medical Centre, Omaha, NE, USA.
Noah J MarcusDepartment of Physiology and Pharmacology, Des Moines University, Des Moines, IA, USA.ORCID 0000-0003-0362-0662
Mónica ManríquezLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.
Marcelo FaúndezLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.
Rodrigo Del RioLaboratory of Cardiorespiratory Control, Universidad Autónoma de Chile, Santiago, Chile.ORCID 0000-0002-2562-806X
Universidad Autónoma de Chile · CLDes Moines University · USUniversity of Nebraska Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

key pointsHeart failure with preserved ejection fraction (HFpEF) is associated with disordered breathing patterns, and sympatho-vagal imbalance. Although it is well accepted that altered peripheral chemoreflex control plays a role in the progression of heart failure with reduced ejection fraction (HFrEF), the pathophysiological mechanisms underlying deterioration of cardiac function in HFpEF are poorly understood. We found that central chemoreflex is enhanced in HFpEF and neuronal activation is increased in pre-sympathetic regions of the brainstem. Our data showed that activation of the central chemoreflex pathway in HFpEF exacerbates diastolic dysfunction, worsens sympatho-vagal imbalance and markedly increases the incidence of cardiac arrhythmias in rats with HFpEF. ABSTRACT: Heart failure (HF) patients with preserved ejection fraction (HFpEF) display irregular breathing, sympatho-vagal imbalance, arrhythmias and diastolic dysfunction. It has been shown that tonic activation of the central and peripheral chemoreflex pathway plays a pivotal role in the pathophysiology of HF with reduced ejection fraction. In contrast, no studies to date have addressed chemoreflex function or its effect on cardiac function in HFpEF. Therefore, we tested whether peripheral and central chemoreflexes are hyperactive in HFpEF and if chemoreflex activation exacerbates cardiac dysfunction and autonomic imbalance. Sprague-Dawley rats (n = 32) were subjected to sham or volume overload to induce HFpEF. Resting breathing variability, chemoreflex gain, cardiac function and sympatho-vagal balance, and arrhythmia incidence were studied. HFpEF rats displayed [mean ± SD; chronic heart failure (CHF) vs. Sham, respectively] a marked increase in the incidence of apnoeas/hypopnoeas (20.2 ± 4.0 vs. 9.7 ± 2.6 events h

Indexed as

AnimalsArrhythmias, CardiacChemoreceptor CellsDiastoleHeart FailureHeart RateHypercapniaMaleOxidative StressRatsRats, Sprague-DawleyStroke Volumeautonomic imbalancecardiac functioncentral chemoreflexheart failure preserved ejection fractionrespiratory disorders

Identifiers

PMID28181258
PMCPMC5390883
OpenAlexW2586480673

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.