Evidence map›Paper›PMID 33558601›Full record

ArticleScientific reports2021

Computer modeling of whole-cell voltage-clamp analyses to delineate guidelines for good practice of manual and automated patch-clamp.

Jérôme Montnach, Maxime Lorenzini, Adrien Lesage, Isabelle Simon, Sébastien Nicolas, Eléonore Moreau, Céline Marionneau, Isabelle Baró, Michel De Waard, Gildas Loussouarn

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 7% 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, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Selective activation of tetrodotoxin-sensitive sodium channels by AaH-II drives arrhythmogenic late Na+ current in the heart.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 · 2026
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  4. SPARC: a structural pathogenicity algorithm for risk classification of hERG variants.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 · 2026
    Article
  5. Article
  6. Electrophysiological classification ofFrontiers in pharmacology · 2025
    Article
  7. Article
  8. Leak current, even with gigaohm seals, can cause misinterpretation of stem cell-derived cardiomyocyte action potential recordings.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 · 2023
    Article
  9. Article
  10. Protein 14-3-3 Influences the Response of the Cardiac Sodium Channel NaThe Journal of pharmacology and experimental therapeutics · 2023
    Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  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

10 authors at 4 institutions in 1 country.

Jérôme Montnach *Université de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Maxime Lorenzini *Université de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Adrien LesageUniversité de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Isabelle SimonUniversité de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Sébastien NicolasUniversité de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Eléonore MoreauUniversité de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Céline MarionneauUniversité de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Isabelle BaróUniversité de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Michel De WaardUniversité de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Gildas LoussouarnUniversité de Nantes, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France. gildas.loussouarn@inserm.fr.
Centre National de la Recherche Scientifique · FRInstitut du Thorax · FRNantes Université · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The patch-clamp technique and more recently the high throughput patch-clamp technique have contributed to major advances in the characterization of ion channels. However, the whole-cell voltage-clamp technique presents certain limits that need to be considered for robust data generation. One major caveat is that increasing current amplitude profoundly impacts the accuracy of the biophysical analyses of macroscopic ion currents under study. Using mathematical kinetic models of a cardiac voltage-gated sodium channel and a cardiac voltage-gated potassium channel, we demonstrated how large current amplitude and series resistance artefacts induce an undetected alteration in the actual membrane potential and affect the characterization of voltage-dependent activation and inactivation processes. We also computed how dose-response curves are hindered by high current amplitudes. This is of high interest since stable cell lines frequently demonstrating high current amplitudes are used for safety pharmacology using the high throughput patch-clamp technique. It is therefore critical to set experimental limits for current amplitude recordings to prevent inaccuracy in the characterization of channel properties or drug activity, such limits being different from one channel type to another. Based on the predictions generated by the kinetic models, we draw simple guidelines for good practice of whole-cell voltage-clamp recordings.

Indexed as

Membrane PotentialsModels, BiologicalAnimalsCells, CulturedIon ChannelsMiceMyocytes, CardiacPatch-Clamp TechniquesIon Channels

Identifiers

PMID33558601
PMCPMC7870888
OpenAlexW3126154915

What OpenQuestion holds

Textmetadata
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.