
Stress induces analgesia via orexin 1 receptor-initiated endocannabinoid/CB1 signaling in the mouse periaqueductal gray
Keywords: Orexin; OX1 and OX2 receptors; Pain; Cannabinoid; Stress-induced analgesia; Periaqueductal gray; 2-AG; 2-arachidonoylglycerol; AL-orexin B; [Ala11, D-Leu15]orexin-B; AM 251; 1-(2,4-dichlorophenyl)-5-(4-iodophenyl)-4-methyl-N-1-piperidinyl-1H-pyrazole-3-ca