PUBLICATION
The Effect of Hypothermia and Osmotic Shock on the Electrocardiogram of Adult Zebrafish
- Authors
- Arel, E., Rolland, L., Thireau, J., Torrente, A.G., Bechard, E., Bride, J., Jopling, C., Demion, M., Le Guennec, J.Y.
- ID
- ZDB-PUB-220424-7
- Date
- 2022
- Source
- Biology 11(4): (Journal)
- Registered Authors
- Jopling, Chris
- Keywords
- Bazett’s formula, electrocardiogram, hyperosmotic therapy, hypothermic therapy, longitudinal studies, zebrafish
- MeSH Terms
- none
- PubMed
- 35453802 Full text @ Biology (Basel)
Citation
Arel, E., Rolland, L., Thireau, J., Torrente, A.G., Bechard, E., Bride, J., Jopling, C., Demion, M., Le Guennec, J.Y. (2022) The Effect of Hypothermia and Osmotic Shock on the Electrocardiogram of Adult Zebrafish. Biology. 11(4):.
Abstract
The use of zebrafish to explore cardiac physiology has been widely adopted within the scientific community. Whether this animal model can be used to determine drug cardiac toxicity via electrocardiogram (ECG) analysis is still an ongoing question. Several reports indicate that the recording configuration severely affects the ECG waveforms and its derived-parameters, emphasizing the need for improved characterization. To address this problem, we recorded ECGs from adult zebrafish hearts in three different configurations (unexposed heart, exposed heart, and extracted heart) to identify the most reliable method to explore ECG recordings at baseline and in response to commonly used clinical therapies. We found that the exposed heart configuration provided the most reliable and reproducible ECG recordings of waveforms and intervals. We were unable to determine T wave morphology in unexposed hearts. In extracted hearts, ECG intervals were lengthened and P waves were unstable. However, in the exposed heart configuration, we were able to reliably record ECGs and subsequently establish the QT-RR relationship (Holzgrefe correction) in response to changes in heart rate.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping