Alarm Pheromone Induces Stress Analgesia via an Opioid System in the Honeybee

@article{Nez1997AlarmPI,
  title={Alarm Pheromone Induces Stress Analgesia via an Opioid System in the Honeybee},
  author={J. N{\'u}{\~n}ez and L. Almeida and N. Balderrama and M. Giurfa},
  journal={Physiology \& Behavior},
  year={1997},
  volume={63},
  pages={75-80}
}
Changes of the stinging response threshold of Apis mellifera scutellata were measured on foragers fixed on a holder and stimulated with an electric shock as a noxious stimulus. The threshold of responsiveness to the noxious stimulus increased when bees were previously stimulated with isopentyl acetate, which is a main component of the alarm pheromone of the sting chamber. This effect is antagonised by previous injection of naloxone-hydrochloride (Endo Laboratories Inc.). Results suggest that in… Expand
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