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Updated: May 8, 2025

Assessing Teratogenic Changes in a Zebrafish Model of Fetal Alcohol Exposure

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Published on: March 20, 2012

Effects of Valproic Acid Embryonic Exposure on Zebrafish: A Systematic Review and Meta-Analysis.

Bernardo Flores-Prieto¹, Jorge Manzo-Denes¹, María Elena Hernández-Aguilar¹

¹Instituto de Investigaciones Cerebrales, Universidad Veracruzana, Xalapa 91070, Mexico.

|December 27, 2024

Summary

Valproic acid (VPA) exposure in zebrafish embryos significantly impacts development, causing behavioral, physiological, and genetic changes. This highlights zebrafish as a key model for studying neurodevelopmental disorders and teratogen effects.

Keywords:

autism spectrum disorder meta-analysis neurodevelopmental disorders systematic review zebrafish

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Area of Science:

Developmental toxicology
Neuroscience
Animal modeling

Background:

Valproic acid (VPA) exposure during embryogenesis is a key method for modeling neurodevelopmental disorders.
Zebrafish (Danio rerio) are widely used animal models in developmental toxicology research.

Purpose of the Study:

To systematically review and meta-analyze the effects of embryonic valproic acid (VPA) exposure in zebrafish.
To elucidate common impacts of VPA exposure on zebrafish development at multiple levels.

Main Methods:

Systematic review of 39 articles from PubMed and Google Scholar.
Meta-analysis of data on VPA exposure effects in zebrafish embryos.

Main Results:

VPA exposure significantly altered zebrafish development across behavioral, physiological, and genetic levels.
Observed effects include altered social interaction, decreased heart rate, increased mortality, morphological abnormalities, neuroanatomical/neurochemical changes, and differential gene expression.
VPA exposure impacts neurodevelopment and neuronal function.

Conclusions:

Zebrafish are a valuable model organism for investigating the effects of teratogen exposure on neurodevelopment.
Embryonic VPA exposure in zebrafish provides insights into neurodevelopmental disorder mechanisms.