Pain promoter also acts as pain reliever
Experiments with rodent cells reveal dual role for pain-sensing protein
![man in pain](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/01/011117_re_pain-blocker_free.jpg?fit=860%2C460&ssl=1)
PAIN GAIN A protein that detects pain also triggers production of pain-soothing opioids, new experiments with rodent cells reveal.
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