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The role of nucleus accumbens NMDA receptors on rapid, transient synaptic plasticity induced by cued nicotine reinstatement

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Nicotine use is an outstanding public health problem with associated social and economic consequences. Nicotine is an active alkaloid compound in tobacco and is recognized as a psychoactive drug. Preclinically,

Nicotine use is an outstanding public health problem with associated social and economic consequences. Nicotine is an active alkaloid compound in tobacco and is recognized as a psychoactive drug. Preclinically, nicotine addiction and relapse can be modeled using a self-administration-reinstatement paradigm. Here, we used a nicotine self-administration and contingent cue-induced reinstatement model to examine rapid, transient synaptic plasticity (t-SP) induced by nicotine cue-triggered motivation. Although preliminary, treatment with the NMDA GluN2B subunit antagonist, ifenprodil, reduced reinstated nicotine seeking, and increased the percentage of spines with smaller head diameters. Thus, future studies are needed to fully parse out the role of NAcore GluN2B receptors in cued nicotine seeking and t-SP.

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  • 2017-05