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How to get physiologically relevant data with students using Lumbriculus variegatus.

Aidan Seeley1, Laura F Corns2, James L Rouse3,4

  • 1Swansea University Medical School, Swansea University, Swansea, United Kingdom.

Advances in Physiology Education
|August 25, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces an easy, cost-effective practical class using the invertebrate Lumbriculus variegatus for in vivo teaching. It equips graduates with essential experimental skills by observing drug effects on behavior, enhancing hands-on laboratory experience.

Keywords:
3RsLumbriculus variegatuspartial replacementundergraduate experiments

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Area of Science:

  • Neuroscience and Pharmacology Education
  • Invertebrate Model Organisms in Research

Background:

  • Higher education faces a decline in in vivo teaching, leading to graduates lacking crucial experimental skills.
  • There is a need for accessible, cost-effective, and ethical alternatives for in vivo practical training.

Purpose of the Study:

  • To present an easy and cost-effective practical class using Lumbriculus variegatus as an in vivo educational model.
  • To enable students to observe the effects of pharmacologically active compounds on invertebrate behavior.

Main Methods:

  • Students perform drug dilution calculations and administer compounds to Lumbriculus variegatus.
  • Behavioral experiments focus on observing stereotypical responses like body reversal and helical swimming via tactile stimulation.
  • The class involves hands-on in vivo experimentation without requiring vertebrate models.

Main Results:

  • Demonstrated the ability to observe drug effects in vivo using Lumbriculus variegatus.
  • Observed both reversible and irreversible behavioral changes in response to different compounds.
  • Validated the effectiveness of Lumbriculus variegatus as a model for teaching in vivo pharmacology.

Conclusions:

  • Lumbriculus variegatus provides a scalable and adaptable model for hands-on in vivo teaching.
  • This approach enhances student engagement and practical skills acquisition without complex or costly requirements.
  • The method offers a viable alternative to traditional vertebrate models for in vivo education.