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Related Experiment Video

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Abamectin Causes Neurotoxicity in Zebrafish Embryos.

Hongying Zhang1, Yulong Liu1, Yukun Huang1

  • 1School of Life Science, Nanchang University, Nanchang 330031, China.

International Journal of Molecular Sciences
|January 11, 2025
PubMed
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Abamectin exposure harms zebrafish embryo neurodevelopment by increasing oxidative stress and apoptosis. This insecticide disrupts brain development and motor behaviors, impacting aquatic life safety.

Keywords:
apoptosisinsecticideneurodevelopmental toxicityoxidative stresszebrafish embryos

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Area of Science:

  • Environmental Toxicology
  • Developmental Neurobiology
  • Aquatic Ecotoxicology

Background:

  • Abamectin, a widely used pesticide, poses risks to aquatic ecosystems.
  • The neurotoxic mechanisms of abamectin in aquatic organisms remain poorly understood.
  • Understanding abamectin's impact on early neural development is crucial for risk assessment.

Purpose of the Study:

  • To investigate the neurodevelopmental toxicity of abamectin in zebrafish embryos.
  • To elucidate the underlying mechanisms of abamectin-induced neurotoxicity.
  • To assess the effects of abamectin on embryonic development and behavior.

Main Methods:

  • Zebrafish embryos were exposed to varying concentrations of abamectin.
  • Survival rates, heart rate, and edema were monitored.
  • Neurobehavioral assessments, gene expression analysis, and oxidative stress markers were evaluated.

Main Results:

  • Abamectin exposure significantly impaired embryonic brain development and motor behaviors.
  • Reduced acetylcholinesterase and ATPase activities were observed.
  • Abamectin triggered reactive oxygen species (ROS) accumulation, leading to neuroapoptosis.

Conclusions:

  • Abamectin causes neurodevelopmental toxicity in zebrafish embryos.
  • Oxidative stress and apoptosis are key mechanisms underlying abamectin's neurotoxicity.
  • These findings highlight the potential risks of abamectin to aquatic life.