Ethanol-induced conditioned place preference and aversion differentially alter plasticity in the bed nucleus of stria terminalis

Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology
Dipanwita PatiThomas L Kash

Abstract

Contextual cues associated with drugs of abuse, such as ethanol, can trigger craving and drug-seeking behavior. Pavlovian procedures, such as place conditioning, have been widely used to study the rewarding/aversive properties of drugs and the association between environmental cues and drug seeking. Previous research has shown that ethanol as an unconditioned stimulus can induce a strong conditioned place preference (CPP) or aversion (CPA) in rodents. However, the neural mechanisms underlying ethanol-induced reward and aversion have not been thoroughly investigated. The bed nucleus of the stria terminalis (BNST), an integral part of the extended amygdala, is engaged by both rewarding and aversive stimuli and plays a role in ethanol-seeking behavior. Here, we used ex-vivo slice physiology to probe learning-induced synaptic plasticity in the BNST following ethanol-induced CPP and CPA. Male DBA/2 J mice (2-3 months old) were conditioned using previously reported ethanol-induced CPP/CPA procedures. Ethanol-induced CPP was associated with increased neuronal excitability in the ventral BNST (vBNST). Conversely, ethanol-induced CPA resulted in a significant decrease in spontaneous glutamatergic transmission without alterations in GABA...Continue Reading

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Citations

Apr 2, 2019·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Tiffany A Wills
Aug 14, 2019·Alcoholism, Clinical and Experimental Research·Samuel W CentanniDanny G Winder
Mar 3, 2020·Brain Research·Anushree N Karkhanis, Ream Al-Hasani
Jun 12, 2021·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Nigel C DaoNicole A Crowley
Aug 31, 2021·Neuropharmacology·A A JaramilloD G Winder

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