ScienceDaily (Feb. 21, 2012) — When first exposed to cocaine, the adolescent brain launches a strong defensive reaction designed to minimize the drug's effects, Yale and other scientists have found. Now two new studies by a Yale team identify key genes that regulate this response and show that interfering with this reaction dramatically increases a mouse's sensitivity to cocaine.
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http://www.sciencedaily.com/releases/2012/02/120221212616.htm
Click link for more information:
http://www.sciencedaily.com/releases/2012/02/120221212616.htm