TRPM8 as a Thermostat for Skin Temperature
Author Information
Author(s): Tajino Koji, Hosokawa Hiroshi, Maegawa Shingo, Matsumura Kiyoshi, Dhaka Ajay, Kobayashi Shigeo
Primary Institution: Kyoto University
Hypothesis
Does the cooling-sensitive TRPM8 channel act as a thermostat for skin temperature regulation?
Conclusion
The study found that TRPM8 functions as a thermostat for skin temperature against cooling.
Supporting Evidence
- TRPM8 channels in HEK293 cells showed activity below a threshold temperature of 28.4°C.
- TRPM8-deficient mice exhibited less heat-seeking behavior in cold environments compared to wild-type mice.
- Menthol application increased core temperature in wild-type mice but not in TRPM8-deficient mice.
Takeaway
TRPM8 helps keep our skin warm when it's cold by making us seek warmth and activating body heat production.
Methodology
The study used TRPM8-deficient and wild-type mice to assess behavioral and autonomic responses to cooling and menthol application.
Limitations
The study did not identify the specific molecule acting as the thermostat.
Participant Demographics
Male mice aged 2-6 months were used in the experiments.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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