By sustained activation of opioid receptors, chronic opioids cause analgesic tolerance, physical dependence, and opioid ......

Background: To study the impact of μ,κ,and δ opioid receptors on tibial inhibition of bladder overactivity in cats Me......

Objective:To examine the changes of mu-opioid receptors (MORs) expression in human chronic inflamed knee joint synovium ......