Evidence map›Paper›PMID 22946617›Full record

ArticleBritish journal of pharmacology2013

Computational assessment of drug-induced effects on the electrocardiogram: from ion channel to body surface potentials.

Nejib Zemzemi, Miguel O Bernabeu, Javier Saiz, Jonathan Cooper, Pras Pathmanathan, Gary R Mirams, Joe Pitt-Francis, Blanca Rodriguez

Abstract read
In one paragraph

Article in British journal of pharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
–field-weighted citation impact
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

56 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Myocardial ischemia simulation based on a multi-scale heart electrophysiology model.Technology and health care : official journal of the European Society for Engineering and Medicine · 2024
    Article
  6. Proarrhythmic risk assessment of drugs by dVCPT: pharmacometrics & systems pharmacology · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. APL bioengineering · 2020
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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.

Nejib ZemzemiDepartment of Computer Science, University of Oxford, Oxford, UK. nejib.zemzemi@inria.fr
Miguel O Bernabeu
Javier Saiz
Jonathan Cooper
Pras Pathmanathan
Gary R Mirams
Joe Pitt-Francis
Blanca Rodriguez

Funding

Medical Research Council G0700278
6 · The paper itself

Abstract

background and purposeUnderstanding drug effects on the heart is key to safety pharmacology assessment and anti-arrhythmic therapy development. Here our goal is to demonstrate the ability of computational models to simulate the effect of drug action on the electrical activity of the heart, at the level of the ion-channel, cell, heart and ECG body surface potential. EXPERIMENTAL APPROACH: We use the state-of-the-art mathematical models governing the electrical activity of the heart. A drug model is introduced using an ion channel conductance block for the hERG and fast sodium channels, depending on the IC(50) value and the drug dose. We simulate the ECG measurements at the body surface and compare biomarkers under different drug actions. KEY

resultsIntroducing a 50% hERG-channel current block results in 8% prolongation of the APD(90) and 6% QT interval prolongation, hERG block does not affect the QRS interval. Introducing 50% fast sodium current block prolongs the QRS and the QT intervals by 12% and 5% respectively, and delays activation times, whereas APD(90) is not affected. CONCLUSIONS AND IMPLICATIONS: Both potassium and sodium blocks prolong the QT interval, but the underlying mechanism is different: for potassium it is due to APD prolongation; while for sodium it is due to a reduction of electrical wave velocity. This study shows the applicability of in silico models for the investigation of drug effects on the heart, from the ion channel to the ECG-based biomarkers.

Indexed as

Models, BiologicalAction PotentialsComputer SimulationElectrocardiographyEther-A-Go-Go Potassium ChannelsHeartHumansPotassium Channel BlockersSodium Channel BlockersSodium ChannelsEther-A-Go-Go Potassium ChannelsPotassium Channel BlockersSodium Channel BlockersSodium Channels

Identifiers

PMID22946617
PMCPMC3579290

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.