Caliber of zebrafish touch-sensory axons is dynamic in vivo
2025
Dynamic Changes in Zebrafish Axon Caliber
Sample size: 31
publication
10 minutes
Evidence: moderate
Author Information
Author(s): Ching Kaitlin, Sagasti Alvaro
Primary Institution: University of California, Los Angeles
Hypothesis
How does axon caliber change on shorter timescales in vivo?
Conclusion
Axon caliber in zebrafish is highly dynamic and varies significantly along the length of the axon.
Supporting Evidence
- Axon caliber was observed to change on the timescale of minutes.
- Caliber varied significantly between sister axon segments.
- Caliber dynamics were influenced by the cellular microenvironment.
Takeaway
The thickness of nerve fibers can change quickly, and this can affect how fast signals travel in the nervous system.
Methodology
The study used super-resolution microscopy and time-lapse imaging to measure axon caliber in live zebrafish.
Limitations
The study did not consider the sex of the zebrafish, as experiments were conducted prior to sex determination.
Participant Demographics
Zebrafish embryos at embryonic stages prior to sex determination.
Statistical Information
P-Value
0.036
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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