Friday, April 27, 2012

Cocaine abuse may disrupt brain`s reward system



Repeated exposure to cocaine reduces the activity of a protein essential for normal functioning of the brain`s reward system, thus enhancing the reward for cocaine use and stimulating addiction, a new study has revealed.

The findings by researchers from Mount Sinai Medical Center in New York provide the first evidence of how cocaine changes the shape and size of neuron rewards in a mouse model.

The study has been published in the journal Nature Neuroscience.

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