Related Experiment Video
Updated: Jan 25, 2026

Author Spotlight: Impact of Physical Barriers on Rodent Populations in Farmland Areas
Published on: March 8, 2024
In Vivo Methods to Study ThermoTRP Channels in Rodents
1Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universitas Miguel Hernández, Elche, Spain. sara.gonzalezr@umh.es.
Abstract:
Ion channels participate in several biological processes. Among these channels, the ionotropic TRP family is the most prominent group being TRPV1 the most studied. The activation of these channels can elicit pain sensation; thus, the development of blockers for these channels is receiving increasing attention. TRP channels are the responsible for thermonociception but also, they are involved in osmolarity, taste, and chemical substances perception such as capsaicin or menthol which can evoke pain. The needed of testing new compounds implies the use of animal models of pain and nociceptive tests in order to evaluate their potential efficacy for the treatment of painful symptoms. Several methods have been developed. Here, I describe the standard, current, and available tests to explore nociception in rodents, especially when thermal or mechanical stimuli are applied.
Insights
Transient Receptor Potential (TRP) channels, particularly TRPV1, are key in pain sensation. This review details standard rodent nociception tests for evaluating new pain-relief compounds targeting these channels.
Area of Science:
- Neuroscience
- Pharmacology
- Physiology
Background:
- Ion channels, especially the Transient Receptor Potential (TRP) family, play crucial roles in biological processes.
- TRPV1 is the most studied TRP channel, implicated in pain sensation, thermonociception, and perception of stimuli like capsaicin.
- Developing blockers for TRP channels is a growing area of interest for pain management.
Purpose of the Study:
- To review standard, current, and available nociception tests in rodents.
- To provide a resource for evaluating the efficacy of novel compounds targeting TRP channels for pain relief.
Main Methods:
- Focus on rodent models for pain and nociception testing.
- Description of methods specifically for thermal and mechanical stimuli application.
- Exploration of established and current nociceptive assays.
Main Results:
- Nociception tests in rodents are essential for assessing potential pain-relief drugs.
- Standardized methods exist for evaluating thermal and mechanical hyperalgesia.
- TRP channels are validated targets for therapeutic intervention in pain.
Conclusions:
- Rodent nociception tests are critical for preclinical drug development targeting TRP channels.
- Understanding these assays aids in the discovery of new analgesics.
- TRPV1 and related channels represent significant targets for treating painful conditions.
Related Concept Videos
Ion Channels
Ion channels are specialized integral membrane proteins on the plasma membrane that allow...
Channel Rhodopsins
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
Non-gated Ion Channels
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism....
Channels of Non-Verbal Communication
Methods for Studying Drug Absorption: In vitro
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
Methods for Studying Drug Absorption: In situ
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...

