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Full-Text Articles in Social and Behavioral Sciences
Blocking The Acquisition Of Ethanol-Induced Conditioned Place Preference With 11, 21-Bisphenyl-19-Norpregnane (Pt150) In Coturnix Quail, Mia Radevski
Theses and Dissertations--Psychology
Alcohol use disorder (AUD) has been associated with a dysregulated stress system. Therefore, regulating stress hormones has been investigated as a potential therapeutic target for AUDs. The purpose of the current study was to investigate whether a stress hormone receptor antagonist, PT150, would block the rewarding properties of ethanol. Quail were used as subjects because a conditioned place preference (CPP) apparatus that utilized visual cues was used, and quail readily attend to visual cues. Visual cues in the environment have been shown to become associated with alcohol effects and later induce craving. Starting on day one, quail were pretreated with …
Modified Single Prolonged Stress Reduces Cocaine Self-Administration During Acquisition Regardless Of Rearing Environment, Rebecca S. Hofford, Mark A. Prendergast, Michael T. Bardo
Modified Single Prolonged Stress Reduces Cocaine Self-Administration During Acquisition Regardless Of Rearing Environment, Rebecca S. Hofford, Mark A. Prendergast, Michael T. Bardo
Psychology Faculty Publications
Until recently, there were few rodent models available to study the interaction of post-traumatic stress disorder (PTSD) and drug taking. Like PTSD, single prolonged stress (SPS) produces hypothalamic-pituitary-adrenal (HPA) axis dysfunction and alters psychostimulant self-administration. Other stressors, such as isolation stress, also alter psychostimulant self-administration. However, it is currently unknown if isolation housing combined with SPS can alter the acquisition or maintenance of cocaine self-administration. The current study applied modified SPS (modSPS; two hours restraint immediately followed by cold swim stress) to rats raised in an isolation condition (Iso), enrichment condition (Enr), or standard condition (Std) to measure changes in …
Characterizing The Role Of Glucocorticoids In The Sign Tracking Behavior Of Male Japanese Quail (Coturnix Japonica), Beth A. Rice
Characterizing The Role Of Glucocorticoids In The Sign Tracking Behavior Of Male Japanese Quail (Coturnix Japonica), Beth A. Rice
Theses and Dissertations--Psychology
A devastating feature of drug-dependence is the susceptibility of relapse (40-60%) after stretches of abstinence. One theory that may account for relapse suggests that drug cues (e.g., paraphernalia) may increase stress hormones, and this may prompt relapse. Repeatedly pairing a neutral cue with a reward is commonly utilized to measure what subjects learn about a cue that is predictive of reward. Research has shown that animals that attend to a cue more than to the reward (sign trackers) may be more vulnerable to drug addiction. Additionally, research has shown that sign tracking is associated with an increase in corticosterone (CORT), …
Characterizing Consumption, Dependence, And The Role Of Glucocorticoids In An Animal Model Of Voluntary Ethanol Consumption, Lynda Sharrett-Field
Characterizing Consumption, Dependence, And The Role Of Glucocorticoids In An Animal Model Of Voluntary Ethanol Consumption, Lynda Sharrett-Field
Theses and Dissertations--Psychology
Alcohol abuse disorders (AUD) represent a serious worldwide health problem with far reaching social, financial, and interpersonal implications. One of the most devastating facets of these disorders is the propensity to relapse following periods of abstinence. Ethanol withdrawal (EWD) is believed to promote relapse by increasing anxiety and craving, and may contribute to the development of cognitive decline associated with long-term dependence. Clinical data suggest that stress also plays a main role in both the development of AUD as well as relapse to drinking. As a physiological stressor, EtOH elevates levels of stress hormones (cortisol in humans, corticosterone (CORT) in …
Effects Of Corticosterone And Ethanol Co-Exposure On Hippocampal Toxicity: Potential Role For The Nmda Nr2b Subunit, Tracy Renee Butler
Effects Of Corticosterone And Ethanol Co-Exposure On Hippocampal Toxicity: Potential Role For The Nmda Nr2b Subunit, Tracy Renee Butler
University of Kentucky Doctoral Dissertations
Chronic ethanol (EtOH) exposure produces neuroadaptations within the NMDA receptor system and alterations in HPA axis functioning that contribute to neurodegeneration during ethanol withdrawal (EWD). Chronic EtOH exposure and EWD, as well as corticosteroids, also promote increased synthesis and release of polyamines, which allosterically potentiate NMDA receptor open-channel time at the NR2B subunit. The current studies investigated effects of 10 day EtOH and corticosterone (CORT) co-exposure on toxicity during EWD in rat organotypic hippocampal slice cultures, and alterations in function and/or density of the NR2B subunit of the NMDA receptor that may mediate CORT-potentiation of toxicity during EWD. We hypothesized …