People vary greatly in their sensitivity to pain: A tetanus shot's pinprick for one person is another's misery. Now researchers at Johns Hopkins and the National Institute on Drug Abuse (NIDA) report that much of human sensitivity to pain -- and the varied response people have to opiate pain medicines -- has a genetic basis. Many of the differences in pain perception by both mouse and human, the scientists say, are likely due to variation in a single key gene.
The above story is based on materials provided by Johns Hopkins Medical Institutions. Note: Materials may be edited for content and length.
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