Involvement of opioid system in antidepressant-like effect of the cannabinoid CB1 receptor inverse agonist AM-251 after physical stress in mice.

“Cannabinoid inverse agonists possess antidepressant-like properties…

Numerous studies reported the interaction between opioid and cannabinoid pathways.

In this study, we used acute foot-shock stress in mice to investigate the involvement of opioid pathway in the antidepressant-like effect of the cannabinoid CB1 receptor inverse agonist AM-251.

In conclusion, the present study for the first time revealed the possible role of opioid signaling in the antidepressant-like properties of AM-251 in foot-shock stress model. “

http://www.ncbi.nlm.nih.gov/pubmed/26609670