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Social and Behavioral Sciences Commons

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Full-Text Articles in Social and Behavioral Sciences

Chronic Hippocampal Abnormalities And Blunted Hpa Axis In An Animal Model Of Repeated Unpredictable Stress, Moustafa Algamal, Joseph O. Ojo, Carlyn P. Lungmus, Phillip Muza, Constance Cammarata, Margaret J. Owens, Benoit C. Mouzon, David M. Diamond, Michael Mullan, Fiona Crawford Jul 2018

Chronic Hippocampal Abnormalities And Blunted Hpa Axis In An Animal Model Of Repeated Unpredictable Stress, Moustafa Algamal, Joseph O. Ojo, Carlyn P. Lungmus, Phillip Muza, Constance Cammarata, Margaret J. Owens, Benoit C. Mouzon, David M. Diamond, Michael Mullan, Fiona Crawford

Psychology Faculty Publications

Incidence of post-traumatic stress disorder (PTSD) ranges from 3 to 30% in individuals exposed to traumatic events, with the highest prevalence in groups exposed to combat, torture, or rape. To date, only a few FDA approved drugs are available to treat PTSD, which only offer symptomatic relief and variable efficacy. There is, therefore, an urgent need to explore new concepts regarding the biological responses causing PTSD. Animal models are an appropriate platform for conducting such studies. Herein, we examined the chronic behavioral and neurobiological effects of repeated unpredictable stress (RUS) in a mouse model. 12 weeks-old C57BL/6J male mice were …


Effects Of Vortioxetine On Biomarkers Associated With Glutamatergic Activity In An Ssri Insensitive Model Of Depression In Female Rats, N. Hlavacova, Y. Li, Alan Pehrson, Connie Sanchez, Isabel Bermudez-Diaz, Agnesa Csanova, Daniela Jezova, Michael Franklin Mar 2018

Effects Of Vortioxetine On Biomarkers Associated With Glutamatergic Activity In An Ssri Insensitive Model Of Depression In Female Rats, N. Hlavacova, Y. Li, Alan Pehrson, Connie Sanchez, Isabel Bermudez-Diaz, Agnesa Csanova, Daniela Jezova, Michael Franklin

Department of Psychology Faculty Scholarship and Creative Works

The aim of this study was to investigate the antidepressant activity of vortioxetine in a tryptophan (TRP) depletion female rat model of depression and compare it to that of paroxetine using doses that fully occupy the serotonin transporter (SERT). We evaluated the effects of vortioxetine on potential biomarkers associated with TRP depletion including serum aldosterone, corticosterone and IL-6 levels together with indirect indicators of glutamate neurotransmission. Female Sprague-Dawley rats were randomized to control, low TRP, low TRP/paroxetine or low TRP/vortioxetine groups. Vortioxetine and paroxetine were administered via diet (10 mg/kg/day) and drinking water (10 mg/kg/day) respectively for 14 days. Vortioxetine …


Modified Single Prolonged Stress Reduces Cocaine Self-Administration During Acquisition Regardless Of Rearing Environment, Rebecca S. Hofford, Mark A. Prendergast, Michael T. Bardo Feb 2018

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 …


The Impact Of Neonatal Pain And Reduced Maternal Care On Brain And Behavioral Development, Sean Michael Mooney-Leber Jan 2018

The Impact Of Neonatal Pain And Reduced Maternal Care On Brain And Behavioral Development, Sean Michael Mooney-Leber

Wayne State University Dissertations

In the neonatal intensive care unit (NICU) preterm infants are exposed to a multitude of stressors, which include both neonatal pain and reduced maternal care. Clinical and preclinical research has demonstrated that exposure to neonatal pain and reduced maternal care has a profound negative impact on brain and behavioral development. Currently, the biological mechanism by which both of these stressors impacts brain and behavioral outcomes remains widely unknown. To uncover a potential biological mechanism, the current dissertation project utilized a preclinical model of repetitive needle pokes and developed a novel model of reduced maternal care through tea-ball encapsulation. Briefly, rat …


Characterizing The Role Of Glucocorticoids In The Sign Tracking Behavior Of Male Japanese Quail (Coturnix Japonica), Beth A. Rice Jan 2018

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), …