N-acylethanolamines (NAEs) are lipid-derived signaling compounds. For example, arachidonoyl ethanolamide is an endogenous cannabinoid (CB) that activates the CB1 and CB2 receptors. Palmitoleoyl Ethanolamide (POEA) is an NAE that is produced endogenously from palmitoleic acid. Unlike arachidonoyl ethanolamide and palmitoyl ethanolamide, POEA does not have antinociceptive effects, as assessed in the formalin-evoked pain model.
