Data from the Centers for Disease Control and Prevention show there were about 107,000 drug overdose deaths in the United States in 2023. Of those, about 75%, or 81,000, involved opioids.
Now two independent research teams have produced high-resolution atomic structures of the mu-opioid receptor (µ-OR), which recognizes morphine and codeine, and the kappa-opioid receptor (?-OR), the ...
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