In rats that can't control glutamate, cocaine is less rewarding, staving off relapse
This cartoon depicts how a single-point (mGluR2) gene mutation alters a rat's sensitivity to cocaine reward and the following drug-taking and drug-seeking habits. Credit score: Zheng-Xiong Xi and Lauren Brick Rats lacking a neuroreceptor that controls the discharge of the neurotransmitter glutamate are much less amenable to the rewarding results of cocaine, rising their likelihood of kicking the behavior as soon as addicted, researchers from the Nationwide Institute on Drug Abuse (NIDA) discover. Their work, showing July 11 in Cell Studies , means that the receptor, which protects nerve cells from deadly inundation by extra glutamate, is concerned in modulating the reward-seeking habits related to drug habit. By silencing the gene answerable for expressing the receptor, referred to as mGluR2, the researchers studied its impact throughout the levels of the cocaine habit cycle. Rats with out the receptor had been extra prone to devour coc...