What role does genetics play in opioid addiction?

What role does genetics play in opioid addiction?

(CNN) Researchers have identified another gene that could influence the risk of opioid dependence, a new study shows, adding to the evidence that genetic factors play a crucial role in determining who develops addiction. The study, published in final form Thursday in the journal Biological Psychiatry, analyzed the genomes of more than 5,000 Americans who had been exposed to opioids, looking at the differences between those who developed opioid dependence and those who didn't. The researchers found a genetic variant on one chromosome, near a gene called RGMA, that was associated with opioid dependence in European- and African-Americans. Members of...

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