Medicine and Health Sciences Commons^™

Individual Differences In Cannabis Use Disorder With Implications For Endocannabinoid Modulation In Therapeutics Development, Erin Martin

MUSC Theses and Dissertations

Cannabis use disorder (CUD) is increasingly prevalent in the United States, but there is no effective pharmacological means to treat it. The endocannabinoid (eCB) system has emerged as a candidate therapeutic target demonstrating some evidence of efficacy in treating CUD. However, clinical trials evaluating eCB-modulating therapeutics have historically undervalued individual differences that could contribute to variation in treatment outcome (e.g. sex, comorbid psychiatric illness). To address this gap in the literature, the present set of studies (a) compared plasma eCB tone in groups underrepresented in treatment trials for CUD (females, individuals with comorbid major depressive disorder; MDD/CUD) with males or …

Prevalence Of Depression, Anxiety And Stress After The Covid-19 Pandemic Period Among Students At The Medical University Of Sofia; Significance Of Demographic, Educational, And Pandemic-Related Variables, Nadya Avramova

Journal of Mind and Medical Sciences

This cross-sectional study aimed to determine the prevalence of depression, anxiety, and stress among undergraduate dental students at Sofia Medical University and to investigate its associations with some demographic, educational and pandemic-related variables. A self-reported questionnaire that included the validated DASS-21 scale was administered to a group of 2nd, 3rd, 4th, and 5th year students (n=70, response rate 95.7%). Results indicated abnormal levels of depression, anxiety, and stress in 34.3%, 65.7% and 59.7% of the participants, respectively. A much larger proportion of females suffered from abnormal levels of anxiety (56.6%) as compared with males (9%), p=.003. Single students exhibited significantly …

Social Dominance Alters Stress-Induced Neural Activity And Generates Individual Differences In Stress Vulnerability, Jenna Lee Laymon

Masters Theses

Identifying the physiological and behavioral mechanisms that underlie stress vulnerability is a crucial step toward identifying novel targets for the prevention and treatment of stress-related disorders. Social status is a key environmental factor that contributes to individual variations in stress vulnerability. In particular, achieving a subordinate social status has been shown to produce susceptibility to anxiety-like and depressive-like behavior. In this project, our aim was to identify neural ensembles regulating how dominance status modulated stress-induced changes in avoidant behavior in male and female Syrian hamsters. Using a viral vector that codes for robust activity marker (RAM), we investigated whether stress-induced …

Conditioned Place Avoidance Is Associated With A Distinct Hippocampal Phenotype, Partly Preserved Pattern Separation, And Reduced Reactive Oxygen Species Production After Stress, D. Parker Kelley, Lucas Albrechet-Souza, Shealan Cruise, Rajani Maiya, Aspasia Destouni, Siva S.V.P. Sakamuri, Alexander Duplooy, Meghan Hibicke, Charles Nichols, Prasad V.G. Katakam, Nicholas W. Gilpin, Joseph Francis

School of Medicine Faculty Publications

Stress is associated with contextual memory deficits, which may mediate avoidance of trauma-associated contexts in posttraumatic stress disorder. These deficits may emerge from impaired pattern separation, the independent representation of similar experiences by the dentate gyrus-Cornu Ammonis 3 (DG-CA3) circuit of the dorsal hippocampus, which allows for appropriate behavioral responses to specific environmental stimuli. Neurogenesis in the DG is controlled by mitochondrial reactive oxygen species (ROS) production, and may contribute to pattern separation. In Experiment 1, we performed RNA sequencing of the dorsal hippocampus 16 days after stress in rats that either develop conditioned place avoidance to a predator urine-associated …

Analyzing The Effects Of The Covid-19 Pandemic On Mood Disorders In Patients, Alexa Golub, Joanna Petrides, Meagan Vermeulen

Rowan-Virtua Research Day

The COVID-19 pandemic brought about restrictions on social interactions, altered work settings/job losses, decreased access to groceries and essentials, and more

With strict prevention measures and isolating quarantine experiences, it was anticipated that the lockdown would have psychological effects

Some contributing psychological stressors included duration of quarantine, fear of infection, boredom, lack of supplies, inadequate information, and finances

This study aimed to quantify and evaluate any change in mood disorder diagnoses since the onset of the COVID-19 pandemic

Comparison Of Schedules, Stress, Sleep Problems, Fatigue, Mental Health And Well-Being Of Low Cost And Network Carrier Pilots, Marion Venus

International Journal of Aviation, Aeronautics, and Aerospace

Objective

This research investigates and compares working-conditions, duty rosters, stress, sleep problems, fatigue levels, mental health, and well-being of pilots working for network (NWCs), and low-cost carriers (LCCs). This study extends previous research by investigating working conditions, pilots’ actual rosters, fatigue and mental health of two groups of pilots flying for LCC or NWC.

Method

A comprehensive cross-sectional online survey was completed by N=338 pilots (185 NWC, 153 LCC pilots). All pilots reported their roster data of the last 2 months during peak flight season, psychosocial and work-related stress (e.g., high job insecurity, less total flight-experience, lower income, more time …

Family Structure And Maternal Depressive Symptoms: A Cross-National Comparison Of Australia, The United Kingdom, And The United States, Kirsten Rasmussen, Elizabeth K. Sigler, Sadie A. Slighting, Jonathan A. Jarvis, Mikaela J. Dufur, Shana Pribesh

Educational Leadership & Workforce Development Faculty Publications

The purpose of this study is to understand the relationship between family structure and maternal depressive symptoms (MDS) in Australia, the United Kingdom, and the United States. Family structures that involve transitions across life's course, such as divorce, can alter access to resources and introduce new stressors into family systems. Using the stress process model, we examine the links between family structure, stress, resources, and MDS. Using nationally representative data from Australia, the United Kingdom, and the United States and cross-sectional models for each country, we find that family structure may influence MDS differently in the UK than it does …

Examining Treatment Acceptability Of An Eight-Week Mindfulness-Based Stress Reduction Protocol, Blake William Palmer

Dissertations

The goal of this study is to examine whether levels of perceived stress, experiential avoidance, personality traits including openness to experience and agreeableness, and demographic variables will predict the treatment acceptability (indicated by responses on the Treatment Acceptability and Adherence Scale) of an eight-week Mindfulness-Based Stress Reduction (MBSR) program. This study collected data in the Spring of 2019. The final number of participants in the study was 116 (40 females, 76 males, Mage = 36, age range: 22-69 years). Participants completed measures including the Perceived Stress Scale (PSS), Acceptance and Action Questionnaire-II (AAQ-II), the agreeableness and openness to Experience domains …

Exploring The Usefulness Of Mindfulness Practices Through Zoom Meetings In Reducing Anxiety And/Or Stress Of Adults With Learning And Developmental Disabilities During The Covid-19 Pandemic, Thatiane Abra

Expressive Therapies Capstone Theses

This thesis explored which mindfulness meditations or mindfulness practices could be beneficial in the online sessions, the extent to which adults with learning and developmental disabilities could learn the practices remotely, and how stress and anxiety disorders could be reduced through online mindfulness interventions. Furthermore, it was also necessary to address the online sessions as the only mental health treatment possibility during the Coronavirus pandemic for the clients observed and the benefits and limitations of these interventions. Additionally, the importance of structure and routine for this population, the multi-modal structure of the interventions, and how attunement plays an important role …

Viability Of Physiologically Timed Relaxation Interventions In Children With Asd, Nicholas Mendez

CMC Senior Theses

Autism Spectrum Disorder (ASD) is an increasingly common developmental disorder that changes how people experience the world and affects individuals’ social interactions and often leads to many adverse behaviors. Current literature dictates that a primary contributor to these adverse behaviors is that those with ASD have difficulty determining their own emotional states and determining the physiological signals that their body sends them. A study by Dr. Sarabadani et al. determined that it was possible to monitor the physiology of an individual with ASD and correlate certain signals to emotions, such as stress. These findings indicate the feasibility of establishing a …

Effect Of A Self-Care And Self-Awareness Education Program On Resilience To Burnout And Depression In Clinically Experienced Nursing Students, Andrew Taylor

Undergraduate Honors Theses

The purpose was to examine the effect of a self-care educational intervention on nursing student resilience and thus the potential for compassion fatigue, depersonalization, burnout, depression, and inadequate self-care. A one-group pretest-posttest research design was applied to a convenience sample of 104 nursing students near the end of their last semester in a baccalaureate nursing program. The measurements were demographics, a psychometric resilience scale, program evaluation, and reflection question. The intervention was a standardized, intensive 30 min training program on the high degree of stress and burnout nurses face and the core self-care methods that can promote resilience to these …

An Investigation Into The Relationship Between Academic Pressure And Non-Medical Prescription Stimulant Use Among University Of South Carolina Undergraduate Students, Arslan Valimohamed

Senior Theses

One hundred and six undergraduate students of the University of South Carolina were surveyed to understand misuse of prescription stimulants and how perceived academic pressure may play a role in this behavior. Overall, the survey revealed that 33.0% of participants reported illicit use of prescription stimulants in the last 30 days, and 52.8% reported illicitly using prescription stimulants at least once during their time in college. Data from the survey responses indicated that students perceiving academic pressure were more likely to have misused prescription stimulants at least once during their time in college, but only if these students also reported …

The Influence Of Stressful Life Events On The Development Of Type 2 Diabetes, Joshua Minks

Dissertations

This study examined the relationship between distress and the development of Type 2 diabetes mellitus (T2DM) in the presence of established risk factors. Distress secondary to mental health disparities, stressful life events, and work conditions has been shown to promote insulin resistance and the development of T2DM.

Subjects (N=79) diagnosed with T2DM within the previous six months were recruited from SSM Health Centers and VA Medical Centers in the greater St. Louis area. They completed the Recent Life Changes Questionnaire, ENRICHD Social Support Instrument, and a demographic survey and analyses were conducted to determine differences between the veteran …

Persistent Stress-Induced Neuroplastic Changes In The Locus Coeruleus/Norepinephrine System, Olga Borodovitsyna, Neal Joshi, Daniel Chandler

Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship

Neural plasticity plays a critical role in mediating short- and long-term brain responses to environmental stimuli. A major effector of plasticity throughout many regions of the brain is stress. Activation of the locus coeruleus (LC) is a critical step in mediating the neuroendocrine and behavioral limbs of the stress response. During stressor exposure, activation of the hypothalamic-pituitary-adrenal axis promotes release of corticotropin-releasing factor in LC, where its signaling promotes a number of physiological and cellular changes. While the acute effects of stress on LC physiology have been described, its long-term effects are less clear. This review will describe how stress …

Neuronal Correlates For Neuroendocrine Habituation To Repeated Stress, Sara Matovic

Electronic Thesis and Dissertation Repository

One way that the body actively responds to an impending stressor is by increasing systemic glucocorticoids through the activation of the hypothalamic-pituitary-adrenal (HPA) axis. While it is essential for short-term adaptation to stress, the sustained activation of the HPA axis during chronic stress can be detrimental and is linked to stress-related psychiatric conditions such as anxiety and depression. Therefore, it is important that the HPA axis adapts, or habituates, during chronic stress to minimize the negative consequences. Corticotropin releasing hormone (CRH) neurons in the paraventricular nucleus of the hypothalamus (PVN) function to assimilate incoming information from the stress circuitry and …

The Correlation Between Stress And The Development Of Dissociative Identity Disorder, Aviva Soibelman

The Science Journal of the Lander College of Arts and Sciences

Stress is a huge part of life. Our body responds to stress in different ways and most of the times the body overcomes the stress. There are a few incidents when the body is not capable of dealing with the stress and the toll it takes on the brain is undeniable. One result of intolerable stress is Dissociative Identity Disorder (DID) in which biopsychology comes to life, as we see how the body is affected by psychology, and vice versa. The mediators that help the body adapt to stressors become detrimental when a person faces trauma or chronic stress. Glucocorticoids, …

Is Music Therapy A Complementary Treatment Option For Perinatal Women Experiencing Stress And Anxiety?, Samantha L. Wallace Mph

PCOM Physician Assistant Studies Student Scholarship

OBJECTIVE: The objective of this selective EBM review is to determine whether or not music therapy is a complementary treatment option for perinatal women experiencing stress and anxiety.

STUDY DESIGN: Literature review of three English language studies, published between 2006 and present.

DATA SOURCES: Three randomized controlled trials (RCTs) were found using a search of Pubmed, Medline, OVID, and Cochrane databases. These studies analyzed the use of a music therapy intervention among pregnant or postpartum women suffering stress, anxiety and/or depression.

OUTCOMES MEASURED: The outcomes of interest include stress, anxiety and severity of depression symptoms. Outcomes …

Norepinephrine Involvement In The Intermittent Swim Stress-Induced Deficit In Spatial Learning And Memory, Emily Elgert

Honors Theses and Capstones

Learning and memory impairments are often caused by stress disorders including depression. The present study investigated the involvement of norepinephrine in the swim stress-induced deficits of spatial learning and memory. Exposure to intermittent swim stress (ISS) followed by learning and memory tests in the Morris water maze (MWM) were used to investigate this relationship. The ISS paradigm consists of intermittent exposure to cold water, producing stress responses in rats. Reboxetine, a norepinephrine selective reuptake inhibitor (NSRI), was employed to investigate whether this compound reverses the ISS-induced deficit. In other words, rats exposed to the ISS, were hypothesized to experience impaired …

The Effects Of Adolescent Binge Drinking On Corticotropin-Releasing Factor Cells In The Amygdala And Social Predictors Of Alcohol Intake In Male And Female Rats, Chrisanthi Karanikas

Masters Theses 1911 - February 2014

Alcohol is one of the most common drugs of choice among adolescents. Normally, the method of consumption is drinking large quantities of alcohol in short periods of time, otherwise known as “binge drinking.” Corticotropin releasing factor (CRF) stress peptide producing cells in central nucleus of the amygdala (CeA) has been implicated in behavioral responses to stress and addiction. The goals of this thesis were to determine the effects of voluntary binge drinking in adolescence and vapor-induced alcohol dependence in adulthood on CRF cells in the CeA. These studies were done using an operant model of voluntary binge drinking in rodents …

Small Individual Loans And Mental Health: A Randomized Controlled Trial Among South African Adults, Lia C. H. Fernald, Rita Hamad, Dean Karlan, Emily J. Ozer, Jonathan Zinman

Dartmouth Scholarship

Background: In the developing world, access to small, individual loans has been variously hailed as a poverty-alleviation tool – in the context of "microcredit" – but has also been criticized as "usury" and harmful to vulnerable borrowers. Prior studies have assessed effects of access to credit on traditional economic outcomes for poor borrowers, but effects on mental health have been largely ignored.

Methods: Applicants who had previously been rejected (n = 257) for a loan (200% annual percentage rate – APR) from a lender in South Africa were randomly assigned to a "second-look" that encouraged loan officers to approve their …

Stressful Life Events As Predictors Of Functioning: Findings From The Collaborative Longitudinal Personality Disorders Study, Maria E. Pagano, Andrew E. Skodol, Robert L. Stout, M. Tracie Shea, Shirley Yen, Carlos M. Grilo, Charles A. Sanislow, Donna S. Bender, Thomas H. Mcglashan, Mary C. Zanarini, John G. Gunderson

Charles A. Sanislow, Ph.D.

Objective:  Although much attention has been given to the effects of adverse childhood experiences on the development of personality disorders (PDs), we know far less about how recent life events influence the ongoing course of functioning. We examined the extent to which PD subjects differ in rates of life events and the extent to which life events impact psychosocial functioning. Method:  A total of 633 subjects were drawn from the Collaborative Longitudinal Personality Disorders Study (CLPS), a multi-site study of four personality disorders – schizotypal (STPD), borderline (BPD), avoidant (AVPD), obsessive-compulsive (OCPD) – and a comparison group of major depressive …