Opioid receptors are parts of our body that receive signals from certain substances called opioids. These receptors help to control pain, mood, and other functions in our body. Full definition
And high numbers of opioid receptors in the gut — thanks in part to all the nerve endings there — can trigger constipation and sometimes nausea. (sciencenews.org)
Earlier this month, they similarly revealed a designer opioid compound that selectively acts through a different opioid receptor, that has a more benign side - effect profile. (sciencedaily.com)
This is different to addiction to alcohol, heroin or cocaine where increases are seen in opioid receptor levels. (sciencedaily.com)