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Ethanol is one of the most commonly abused drugs. Although environmental and genetic factors contribute to the etiology of alcohol use disorders, it is ethanol’s actions in the brain that explain (1) acute ethanol-related behavioral changes, such as stimulant followed by depressant effects, and (2) chronic changes in behavior, including escalated use, tolerance, compulsive seeking, and dependence...
Ethanol interactions with gamma-aminobutyric acid (GABA), the major inhibitory neurotransmitter in the brain, play key roles in acute intoxication. However, the exact mechanisms of these ethanol interactions have been the subject of considerable confusion and controversy. Many studies suggest that ethanol potentiates the function of the type A GABA receptor (GABA A -R). However, these findings...
Brain-derived neurotrophic factor (BDNF) has emerged as a prominent mediator of neuronal development and synaptic plasticity. BDNF activates multiple signal transduction cascades that regulate cellular function through phosphorylation, transcription, and translation. Ethanol is known to inhibit neurotrophin signaling, but a thorough pharmacological analysis of the effect of ethanol on BDNF signaling...
Assessment of ethanol (EtOH) sensitivity was combined with analysis of N-methyl-d-aspartate (NMDA) NR1-NR2 subunit composition in primary cultured striatal neurons. Subunit composition was determined by western blot analysis; assessment of ifenprodil and spermine sensitivity during whole-cell patch-clamp recordings. From 3-21 days in culture, NR2B was the only NR2 subunit detected using NR2 subunit...
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