Evidence map›Paper›PMID 25135113›Full record

ArticleScientific reports2014

Optical mapping of optogenetically shaped cardiac action potentials.

Sarah A Park, Shin-Rong Lee, Leslie Tung, David T Yue

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
4.0field-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

42 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. Article
  3. Optical mapping and optogenetics in cardiac electrophysiology research and therapy: a state-of-the-art review.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 · 2024
    Review
  4. Review
  5. Article
  6. Brighten the Future: Photobiomodulation and Optogenetics.Focus (American Psychiatric Publishing) · 2022
    Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Cardiac optogenetics: a decade of enlightenment.Nature reviews. Cardiology · 2021
    Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Review
  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

4 authors at 2 institutions in 1 country.

Sarah A ParkProgram in Cellular and Molecular Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Shin-Rong LeeDepartment of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Leslie TungDepartment of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
David T Yue1] Program in Cellular and Molecular Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA [2] Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA [3] Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD, USA [4] Center for Cell Dynamics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007309 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI COX, ANDREA L · 1985 to 2019
$43.2M
Calmodulin/Ca Channel Physiology in HeartR37HL076795 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI YUE, DAVID T · 2004 to 2013
$4.1M
NHLBI NIH HHS 5R37HL076795NHLBI NIH HHS R37 HL076795NIGMS NIH HHS T32 GM007309
6 · The paper itself

Abstract

Light-mediated silencing and stimulation of cardiac excitability, an important complement to electrical stimulation, promises important discoveries and therapies. To date, cardiac optogenetics has been studied with patch-clamp, multielectrode arrays, video microscopy, and an all-optical system measuring calcium transients. The future lies in achieving simultaneous optical acquisition of excitability signals and optogenetic control, both with high spatio-temporal resolution. Here, we make progress by combining optical mapping of action potentials with concurrent activation of channelrhodopsin-2 (ChR2) or halorhodopsin (eNpHR3.0), via an all-optical system applied to monolayers of neonatal rat ventricular myocytes (NRVM). Additionally, we explore the capability of ChR2 and eNpHR3.0 to shape action-potential waveforms, potentially aiding the study of short/long QT syndromes that result from abnormal changes in action potential duration (APD). These results show the promise of an all-optical system to acquire action potentials with precise temporal optogenetics control, achieving a long-sought flexibility beyond the means of conventional electrical stimulation.

Indexed as

Voltage-Sensitive Dye ImagingAction PotentialsAnimalsCells, CulturedChannelrhodopsinsElectric StimulationHalorhodopsinsHEK293 CellsHumansLightMicroelectrodesMicroscopy, ConfocalMyocytes, CardiacOptogeneticsPatch-Clamp TechniquesRatsChannelrhodopsinsHalorhodopsins

Identifiers

PMID25135113
PMCPMC4137261
OpenAlexW1977926808

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.