Evidence map›Paper›PMID 22124886›Full record

ArticleBiomedical microdevices2012

Flexible microelectrode arrays to interface epicardial electrical signals with intracardial calcium transients in zebrafish hearts.

Fei Yu, Yu Zhao, Jie Gu, Katherine L Quigley, Neil C Chi, Yu-Chong Tai, Tzung K Hsiai

Open access · greenAbstract read
In one paragraph

Article in Biomedical microdevices, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

19 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
  2. In vivo microelectrode arrays for neuroscience.Nature reviews. Methods primers · 2025
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  14. ModelingJournal of cardiovascular development and disease · 2016
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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

7 authors at 3 institutions in 1 country.

Fei YuBiomedical Engineering and Cardiovascular Medicine, University of Southern California, Los Angeles, CA, USA.
Yu Zhao
Jie Gu
Katherine L Quigley
Neil C Chi
Yu-Chong Tai
Tzung K Hsiai
University of Southern California · USCalifornia Institute of Technology · USUniversity of California, San Diego · US

Funding

Linking Spatial Variations Shear Stress-Oxidative StressR01HL083015 · NHLBI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HSIAI, TZUNG K · 2006 to 2015
$3.9M
Electronica Impedance to Access Metabolically Active PlaqueR01HL118650 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HSIAI, TZUNG K · 2014 to 2022
$3.3M
Micro-Sensors to Study Electrical and Mechanical Coupling of Injured MyocardiumR01HL111437 · NHLBI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HSIAI, TZUNG K, XU, XIAOLEI · 2012 to 2020
$3.1M
Electrical Biophysical Forces Impact Cardiac MorphogenesisR01HD069305 · NICHD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHI, NEIL C · 2011 to 2015
$1.6M
Molecular and genetic mechanisms of cardiac conduction development and diseaseR01HL104239 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHI, NEIL C · 2011 to 2014
$1.5M
Shear Stress and Mechnaically Unstable PlaqueR21HL091302 · NHLBI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HSIAI, TZUNG K · 2009 to 2010
$432k
NHLBI NIH HHS HL083015NHLBI NIH HHS HL091302NHLBI NIH HHS HL104239NHLBI NIH HHS R01 HL083015NHLBI NIH HHS R01 HL104239NHLBI NIH HHS R01 HL111437NHLBI NIH HHS R01 HL118650NHLBI NIH HHS R21 HL091302NICHD NIH HHS HD069305NICHD NIH HHS R01 HD069305
6 · The paper itself

Abstract

The zebrafish (Danio rerio) is an emerging genetic model for regenerative medicine. In humans, myocardial infarction results in the irreversible loss of cardiomyocytes. However, zebrafish hearts fully regenerate after a 20% ventricular resection, without either scarring or arrhythmias. To study this cardiac regeneration, we developed implantable flexible multi-microelectrode membrane arrays that measure the epicardial electrocardiogram signals of zebrafish in real-time. The microelectrode electrical signals allowed for a high level of both temporal and spatial resolution (~20 μm), and the signal to noise ratio of the epicardial ECG was comparable to that of surface electrode ECG (7.1 dB vs. 7.4 dB, respectively). Processing and analysis of the signals from the microelectrode array demonstrated distinct ECG signals: namely, atrial conduction (P waves), ventricular contraction (QRS), and ventricular repolarization (QT interval). The electrical signals were in synchrony with optically measured Calcium concentration gradients in terms of d[Ca²⁺]/dt at both whole heart and tissue levels. These microelectrodes therefore provide a real-time analytical tool for monitoring conduction phenotypes of small vertebral animals with a high temporal and spatial resolution.

Indexed as

Electrophysiologic Techniques, CardiacMicroelectrodesAnimalsArrhythmias, CardiacCalciumElectrocardiographyElectrophysiological PhenomenaEpicardial MappingHeartHeart Conduction SystemHeart RateHeart VentriclesIon TransportMicrotechnologyMyocardial InfarctionRegenerationCalcium

Identifiers

PMID22124886
PMCPMC3322508
OpenAlexW2149608711

What OpenQuestion holds

Textmetadata
LicenceTDM
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.