Evidence map›Paper›PMID 35314849›Full record

ReviewNature protocols2022

In vivo and ex vivo electrophysiological study of the mouse heart to characterize the cardiac conduction system, including atrial and ventricular vulnerability.

Konstantin Hennis, René D Rötzer, Julia Rilling, Yakun Wu, Stefan B Thalhammer, Martin Biel, Christian Wahl-Schott, Stefanie Fenske

Abstract readReview
PubMed Publisher
In one paragraph

Review in Nature protocols, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Isolated Perfused Hearts for Cardiovascular Research: An Old Dog with New Tricks.Journal of cardiovascular translational research · 2024
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Guidelines for assessment of cardiac electrophysiology and arrhythmias in small animals.American journal of physiology. Heart and circulatory physiology · 2022
    Review
  15. Paradigm shift: new concepts for HCN4 function in cardiac pacemaking.Pflugers Archiv : European journal of physiology · 2022
    Review
  16. Article
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.

Konstantin HennisCenter for Drug Research, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany.ORCID http://orcid.org/0000-0003-0343-0068
René D RötzerCenter for Drug Research, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany.ORCID http://orcid.org/0000-0002-4862-9073
Julia RillingCenter for Drug Research, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany.
Yakun WuCenter for Drug Research, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany.
Stefan B ThalhammerCenter for Drug Research, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany.
Martin BielCenter for Drug Research, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany.ORCID http://orcid.org/0000-0002-9974-3052
Christian Wahl-SchottHannover Medical School, Institute for Neurophysiology, Hanover, Germany. Wahl-Schott.christian@mh-hannover.de.ORCID http://orcid.org/0000-0002-7514-2367
Stefanie FenskeCenter for Drug Research, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany. Stefanie.Fenske@LMU.de.ORCID http://orcid.org/0000-0002-6994-8401
Ludwig-Maximilians-Universität München · DEGerman Centre for Cardiovascular Research · DEMedizinische Hochschule Hannover · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mouse is a common and cost-effective animal model for basic research, and the number of genetically engineered mouse models with cardiac phenotype is increasing. In vivo electrophysiological study in mice is similar to that performed in humans. It is indispensable for acquiring intracardiac electrocardiogram recordings and determining baseline cardiac cycle intervals. Furthermore, the use of programmed electrical stimulation enables determination of parameters such as sinoatrial conduction time, sinus node recovery time, atrioventricular-nodal conduction properties, Wenckebach periodicity, refractory periods and arrhythmia vulnerability. This protocol describes specific procedures for determining these parameters that were adapted from analogous human protocols for use in mice. We include details of ex vivo electrophysiological study, which provides detailed insights into intrinsic cardiac electrophysiology without external influences from humoral and neural factors. In addition, we describe a heart preparation with intact innervation by the vagus nerve that can be used as an ex vivo model for vagal control of the cardiac conduction system. Data acquisition for in vivo and ex vivo electrophysiological study takes ~1 h per mouse, depending on the number of stimulation protocols applied during the procedure. The technique yields highly reliable results and can be used for phenotyping of cardiac disease models, elucidating disease mechanisms and confirming functional improvements in gene therapy approaches as well as for drug and toxicity testing.

Indexed as

Heart Conduction SystemSinoatrial NodeAnimalsElectrocardiographyHeart RateMiceVagus Nerve

Identifiers

PMID35314849
OpenAlexW4221002331

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.