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Related Experiment Video

Updated: Apr 28, 2026

Spinal Cord Transection in the Larval Zebrafish
06:57

Spinal Cord Transection in the Larval Zebrafish

Published on: May 21, 2014

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Spinal cord transection in the larval zebrafish.

Lisa K Briona1, Richard I Dorsky2

  • 1Department of Neurobiology & Anatomy, University of Utah.

Journal of Visualized Experiments : Jove
|June 5, 2014
PubMed
Summary

Larval zebrafish show remarkable spinal cord regeneration and recovery after injury. This study introduces a method for studying this process in larval zebrafish, offering new insights into spinal cord repair.

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Area of Science:

  • Developmental Biology
  • Neuroscience
  • Regenerative Medicine

Background:

  • Mammals exhibit limited recovery from spinal cord injury due to inhibited axonal regrowth and neurogenesis.
  • Anamniotes, such as zebrafish (Danio rerio), demonstrate significant sensory and functional recovery after spinal cord transection.
  • Adult zebrafish are a model for spinal cord injury (SCI) regeneration, showing recovery within 6 weeks.

Purpose of the Study:

  • To establish a reproducible method for spinal cord transection in larval zebrafish.
  • To investigate the potential of larval zebrafish as a model for studying SCI regeneration.
  • To leverage the advantages of in vivo analysis and genetic tools in larval zebrafish for regeneration studies.

Main Methods:

  • Development and application of a reproducible method for larval zebrafish spinal cord transection.
  • Observation and assessment of sensory and motor recovery post-transection.
  • Monitoring of specific behavioral recovery milestones, including C-bend movement and free swimming.

Main Results:

  • Sensory recovery was observed as early as 2 days post-injury (dpi).
  • C-bend movement, indicative of motor function recovery, was detectable by 3 dpi.
  • Resumption of free swimming, signifying substantial functional recovery, occurred by 5 dpi.

Conclusions:

  • Larval zebrafish exhibit rapid sensory and motor recovery following complete spinal cord transection.
  • The established method allows for reproducible study of spinal cord regeneration in larval zebrafish.
  • Larval zebrafish serve as a valuable companion model to adult zebrafish for investigating spinal cord injury recovery mechanisms.