Related Experiment Videos
Bombesin:potent effects on thermoregulation in the rat
Science (New York, N.Y.)
|May 27, 1977
Summary
Bombesin, a peptide found in frog skin, significantly lowers core body temperature in rats. This potent compound is much more effective than neurotensin in regulating temperature, highlighting its central nervous system effects.
Area of Science:
- Neuropharmacology
- Thermoregulation
Background:
- Vasoactive peptides can influence core body temperature.
- Neurotensin and substance P peptides have differential effects on thermoregulation.
Purpose of the Study:
- To assess the hypothermic effects of various vasoactive peptides administered intracisternally in rats.
- To compare the potency of bombesin and neurotensin in lowering core body temperature.
Main Methods:
- Intracisternal administration of vasoactive peptides to rats exposed to cold.
- Measurement of core body temperature changes.
Main Results:
- Peptides related to neurotensin, but not substance P, reduced core temperature.
- Bombesin demonstrated significantly higher potency than neurotensin, with a minimal effective dose ≤1 ng/200g body weight.
Conclusions:
- Bombesin is a highly potent hypothermic agent acting on the central nervous system.
- Bombesin's potent effect on thermoregulation warrants further investigation into its mechanisms.