Science News, July 20th, 1996
Nicotine's effects on the brain precisely mimic those produced by morphine and other major drugs of abuse, according to a study conducted on rats. The finding by Italian scientists "adds new weight to the conclusion that nicotine is indeed addictive," Leslie L. Iversen of the University of Oxford in England observes in the July 18 Nature.
Gaetano Di Chiara of the University of Cagliari in Italy and his coworkers injected nicotine into the veins of unrestrained rats, then probed what happens in a part of the animals' brains known as the nucleus accumbens. This deeply embedded region at the b...
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