PUBLICATION
General anesthetics protects against cardiac arrest-induced brain injury by inhibiting calcium wave propagation in zebrafish
- Authors
- Xu, D.J., Wang, B., Zhao, X., Zheng, Y., Du, J.L., Wang, Y.W.
- ID
- ZDB-PUB-170906-8
- Date
- 2017
- Source
- Molecular brain 10: 44 (Journal)
- Registered Authors
- Du, Jiu Lin
- Keywords
- Brain injury, Ca2+ wave, Cardiac arrest, General anesthetics, Zebrafish
- MeSH Terms
-
- Anesthetics, General/pharmacology
- Anesthetics, General/therapeutic use*
- Animals
- Apoptosis/drug effects
- Brain/drug effects
- Brain/metabolism
- Brain/pathology
- Brain/physiopathology
- Brain Injuries/drug therapy*
- Brain Injuries/etiology*
- Brain Injuries/physiopathology
- Calcium Signaling*/drug effects
- Heart Arrest/complications*
- Heart Arrest/physiopathology
- Ketamine/pharmacology
- Ketamine/therapeutic use
- Midazolam/pharmacology
- Midazolam/therapeutic use
- Motor Activity/drug effects
- Neuroprotective Agents/therapeutic use*
- Survival Analysis
- Zebrafish/metabolism*
- PubMed
- 28870222 Full text @ Mol. Brain
Citation
Xu, D.J., Wang, B., Zhao, X., Zheng, Y., Du, J.L., Wang, Y.W. (2017) General anesthetics protects against cardiac arrest-induced brain injury by inhibiting calcium wave propagation in zebrafish. Molecular brain. 10:44.
Abstract
Cardiac arrest is a leading cause of death and disability worldwide. Although many victims are initially resuscitated, they often suffer from serious brain injury, even leading to a "persistent vegetative state". Therefore, it is need to explore therapies which restore and protect brain function after cardiac arrest. In the present study, using Tg (HuC:GCaMP5) zebrafish as a model, we found the zebrafish brain generated a burst of Ca2+ wave after cardiac arrest by in vivo time-lapse confocal imaging. The Ca2+ wave was firstly initiated at hindbrain and then sequentially propagated to midbrain and telencephalon, the neuron displayed Ca2+ overload after Ca2+ wave propagation. Consistent with this, our study further demonstrated neuronal apoptosis was increased in cardiac arrest zebrafish by TUNEL staining. The cardiac arrest-induced Ca2+ wave propagation can be prevented by general anesthetics such as midazolam or ketamine pretreatment. Moreover, midazolam or ketamine pretreatment dramatically decreased the neuronal apoptosis and improved the survival rate in CA zebrafish. Taken together, these findings provide the first in vivo evidence that general anesthetics pretreatment protects against cardiac arrest-induced brain injury by inhibiting calcium wave propagation in zebrafish.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping