Medicine and Health Sciences Commons^™

Laboratory Management Models In Core Facilities, Karmen Michael Owen

Theses and Dissertations

Core biotechnology facilities are often defined as laboratories that house shared resources for research. These laboratories are of great importance to research communities because a large portion of scientific research data is generated at these facilities. Different investigators can use core facilities to help further their research. In a university setting, there are several management strategies from small cores that house a specific type of instrument, to large cores that house many different technologies. Funding strategies also differ significantly, from those that are funded by a small group of well-funded investigators, to cores managed by a specific department or school, …

Bayesian Spatial And Spatio-Temporal Models For Complex Data Sets, Rongjie Huang

Theses and Dissertations

The cost of testing for infectious diseases can be high, and analyzing large amounts of historical data to forecast disease prevalence can be a time-consuming process. Group testing techniques offer a way to decrease the expenses associated with testing, but this comes at the cost of increased complexity of the data structure due to grouping and imperfect testing when compared to individual-level testing. In this dissertation research, we propose two Bayesian mixed effects spatial group testing regression models: one for areal data and the other for point process data. The former model utilizes a conditional autoregressive (CAR) prior for areal …

Table Of Contents

Journal of the South Carolina Academy of Science

No abstract provided.

Predicting Adolescent Intervention Non-Responsiveness For Precision Hiv Prevention Using Machine Learning, Bo Wang, Feifan Liu, Lynette Deveaux, Arlene Ash, Ben Gerber, Jeroan Allison, Carly Herbert, Maxwell Poitier, Karen Macdonell, Xiaoming Li Ph.D., Bonita Stanton

Faculty Publications

Interventions to teach protective behaviors may be differentially effective within an adolescent population. Identifying the characteristics of youth who are less likely to respond to an intervention can guide program modifications to improve its effectiveness. Using comprehensive longitudinal data on adolescent risk behaviors, perceptions, sensation-seeking, peer and family influence, and neighborhood risk factors from 2564 grade 10–12 students in The Bahamas, this study employs machine learning approaches (support vector machines, logistic regression, decision tree, and random forest) to identify important predictors of non-responsiveness for precision prevention. We used 80% of the data to train the models and the rest for …

Racial And Ethnic Disparities In Alcohol-Attributed Deaths In The United States, 1999–2020, Ibraheem M. Karaye, Nasim Maleki, Ismaeel Yunusa Ph.D.

Faculty Publications

The disparities in alcohol-attributed death rates among different racial and ethnic groups in the United States (US) have received limited research attention. Our study aimed to examine the burden and trends in alcohol-attributed mortality rates in the US by race and ethnicity from 1999 to 2020. We used national mortality data from the Centers for Disease Control and Prevention’s Wide-ranging Online Data for Epidemiologic Research (CDC WONDER) database and employed the ICD-10 coding system to identify alcohol-related deaths. Disparity rate ratios were calculated using the Taylor series, and Joinpoint regression was used to analyze temporal trends and calculate annual and …

The Global Fatty Liver Disease-Sustainable Development Goal Country Score For 195 Countries And Territories, Jeffrey V. Lazarus, Hannah Han, Henry E. Mark, Saleh A. Schattenberg, Jörn M. J., Ismaeel Yunusa Ph. D., Et Al.

Faculty Publications

Background & Aims:

Fatty liver disease is highly prevalent, resulting in overarching wellbeing and economic costs. Addressing it requires comprehensive and coordinated multisectoral action. We developed a fatty liver disease-Sustainable Development Goal (SDG) country score to provide insights into country-level preparedness to address fatty liver disease through a whole-of-society lens.

Approach & Results:

We developed two fatty liver disease-SDG score sets. The first included six indicators (child wasting, child overweight, non-communicable disease [NCD] mortality, universal health coverage service coverage index, health worker density, and education attainment), covering 195 countries between 1990-2017. The second included the aforementioned indicators plus an urban …

Intensive Care Unit Mortality And Length Of Stay Among Critically Ill Patients With Sepsis Treated With Corticosteroids: A Retrospective Cohort Study, Eric E. Chinaeke, Ismaeel Yunusa Ph.D., Bryan L. Love Pharm. D., Joseph Magagnoli, Claiborne E. Reeder

Faculty Publications

Objectives: Sepsis is a major cause of morbidity and mortality in critically ill patients worldwide, and corticosteroids are commonly used to treat it. However, the evidence supporting the use of corticosteroids in sepsis patients admitted to the intensive care unit (ICU) is of low certainty, with conflicting results reported in previous studies. Thus, we aimed to investigate the potential association between corticosteroid treatment and various outcomes, including 30-day ICU mortality, ICU length of stay (LOS), mechanical ventilation use, new onset of infection, and hyperglycemia in patients diagnosed with sepsis and admitted to the ICU.

Materials and Methods: We conducted …

The Polypharmacological Effects Of Cannabidiol, Jorge Castillo-Arellano, Ana Canseco-Alba, Stephen J. Cutler Ph.D., Francisco León Ph.D.

Faculty Publications

Cannabidiol (CBD) is a major phytocannabinoid present in Cannabis sativa (Linneo, 1753). This naturally occurring secondary metabolite does not induce intoxication or exhibit the characteristic profile of drugs of abuse from cannabis like Δ⁹-tetrahydrocannabinol (∆⁹-THC) does. In contrast to ∆⁹-THC, our knowledge of the neuro-molecular mechanisms of CBD is limited, and its pharmacology, which appears to be complex, has not yet been fully elucidated. The study of the pharmacological effects of CBD has grown exponentially in recent years, making it necessary to generate frequently updated reports on this important metabolite. In this article, a …

Targeting Of Mediator Kinases For Cancer Therapy And Resistance Prevention, Zachary Thomas Mack

Theses and Dissertations

Estrogen receptor (ER)-positive breast cancers make up 70% of all breast cancer incidences in the US. Cell cycle progression of ER-positive breast cancer is highly dependent on cyclin-dependent kinases (CDK) 4 and 6, the G1/S checkpoint kinases. Inhibitors of CDK4/6 have become a major addition to the clinical arsenal against ER-positive breast cancers. CDK4/6 inhibitor palbociclib (IBRANCETM) has been approved for the treatment of ER-positive breast cancers. However, palbociclib treatment eventually fails due to the development of resistance. Laboratory studies revealed several diverse mechanisms of palbociclib resistance, making universal re-sensitization difficult to achieve. However, prevention of the adaptive process that …

Exploration Into The Relationship Between Colitis And Depression: A Potential Role For The Aryl Hydrocarbon Receptor, Kasie Lynn Roark

Theses and Dissertations

Inflammatory Bowel Disease (IBD) is a group of chronic gastrointestinal disorders with unclear etiology comprised of two defined disorders – Crohn’s Disease (CD) and Ulcerative Colitis (UC). IBD leads to chronic pain, socially isolating symptoms, and an overall reduction in patient quality of life. There is currently no cure for IBD. Due to decreased mucous production and weakening of the colonic epithelial lining, gut-microbiota and their metabolites can invade the intestinal lamina propria and circulate systemically, a term known as “leaky gut”. Recent studies show a relationship exists between peripheral inflammation, such as IBD, and depression. The gut-brain axis (GBA) …

Moral Injury To Inform Analysis Of Post-Traumatic Stress Disorder, Amanda Julia Manea

Senior Theses

Post-traumatic stress disorder (PTSD) is a mental health condition that almost one out of ten veterans struggle with. Although the National Center for PTSD has made extensive progress in characterizing and developing new treatments for PTSD, most veterans still experience symptoms of PTSD following treatment. Novel avenues of investigation, such as developing algorithms to review electronic health record (EHR) data and better understanding moral injury, are being pursued to address the gap that still exists when it comes to treating veterans. Moral injury is the individual evaluation of exposure to a potentially morally injurious event (PMIE) and can lead to …

Undergraduate Major And Covid-19 Vaccination Rates Among University Of South Carolina Students, Rebecca Stoltz

Senior Theses

The COVID-19 pandemic brought new vaccines to the forefront of public attention, and with it came a wide array of different opinions. The University of South Carolina did not require students to receive a COVID vaccine, so the decision was left entirely to the individual. Many of my peers have shown support or voiced opposition to the vaccine, and I noticed that those who opposed tended to fall within certain major categories. This study seeks to determine whether a correlation exists between undergraduate major groups and vaccination status, and to gather student attitudes and concerns surrounding vaccines. Among 172 survey …

The Ethical Challenges Of Newborn Screening Programs In The United States, Devin Donovan

Senior Theses

Newborn screening programs have been mandated throughout the United States since the 1960s, and technological advancements have allowed for their evolution into the essential public health entities they are today (Arnold 558). These programs screen newborns for a variety of congenital and genetic conditions in all states, but each state varies in conditions screened and policies for collecting and using samples. Residual blood spots are a key component of these programs because they are often used for secondary purposes, such as for quality assurance and public health or biomedical research (Botkin et al. 121). Ethical challenges have arisen related to …

Girls Just Want To Be Safe: An Analysis Of Drugged Drinking And Prevention Amongst Students At The University Of South Carolina, C. Gray Forsberg

Senior Theses

Drink-spiking has become a well-known phenomenon since the turn of the century, especially on college campuses in the United States. Drink-spiking or drugging can be defined as “adding alcohol or drugs into someone’s drink without their knowledge or permission” (Alcohol and Drug Foundation, 2006). Drink-spiking is not just relevant to the concern of an illicit substance being placed into an alcoholic drink, but adding additional alcohol to drinks or adding alcohol or drugs to non-alcoholic drinks is considered drugging as well. This study collected data through a survey sent to 250 current students at the University of South Carolina regarding …

An Exploration Of The Social And Economic Factors That Influence The Mental Health Of Lgbtq College Students, Alexandria Mh Fossum

Senior Theses

LGBTQ individuals face a much higher prevalence of psychiatric disorders and mental health issues than their heterosexual, cisgender counterparts. The added academic pressures of college introduce a unique set of challenges that LGBTQ students face. This thesis includes a review of academic literature and data examining the intersections between social isolation, institutional discrimination, and financial insecurity and the effects they have on the mental health outcomes of LGBTQ college students. The paper is accompanied by a documentary consisting of a set of interviews of LGBTQ college students, giving a more personal insight into the multitude of factors that affect their …

Role Of Nucleus Accumbens Dopamine Receptor Signaling In The Suppression Of Punished Reward Seeking, Grace M. Joyner, Anna Caroline Toburen

Senior Theses

Previous studies have shown that within the nucleus accumbens (NAc), a brain region associated with motivation and reinforcement learning, activity of neurons expressing the dopamine D2 receptor (D2R neurons) act as a “break” on risky behavior associated with negative outcomes. Moreover, when these neurons are stimulated, rats were found to become more risk averse. However, the impact of dopamine signaling through NAc D2R neurons in risk avoidance is still unclear. To further explore the role of NAc dopamine signaling in punished reward-seeking, we tested rats in a novel punished food-seeking paradigm in which subjects are trained to choose between a …

Fixing The System: A Comparative Review Of The United Kingdom, Germany, And United States’ Healthcare Systems And Lessons Learned For Potential Improvements In The United States, Jessica Goddard

Senior Theses

In an effort to provide recommendations to the United States’ considerations of a universal healthcare system, this thesis analyzes the United States healthcare system alongside the sophisticated systems of the United Kingdom and Germany. Literature review and an analysis of 10 health outcomes and indicators guided the framework for a set of interview questions to be asked of healthcare professionals in all three countries. The interview response data was then organized and used to guide the suggested recommendations to the United States in its path towards universal healthcare. While a limited number of solutions could be provided given the time …

The Intersectionality Of Race And Rurality In Polysubstance Use During Pregnancy In The United States: A Study Of National Survey On Drug Use And Health, Sophia Tavakol

Senior Theses

Importance: Though detrimental consequences, many pregnant individuals are still binging alcohol, smoking, and/or using illicit drug. Yet, little is known regarding variations in such behaviors across pregnant people in the United States.

Objective: To examine alcohol, tobacco, and drug use during pregnancy in 2015-2020 and assess their racial, ethnic, and rural disparities.

Design: This cross-sectional descriptive study derived maternal characteristics and self-reported prenatal substance use data from 2015 and 2020 National Survey on Drug Use and Health, considering the complex sampling weight per participant per year produced by NSDUH.

Setting: United States.

Participants: A scientific random sample of non-institutionalized residents …

Covid-19 Vaccine Hesitancy And Vaccination Rate Among The Latino Population In South Carolina, Brynn E. Lynagh

Senior Theses

It is common knowledge that COVID-19 disproportionately impacts racial and ethnic minorities in the United States. Furthermore, these sects of the population exhibit increased vaccine hesitancy and lower vaccination rates as compared to the aggregated population of the United States, furthering the risk posed by COVID-19 to these communities. In particular, this study focuses on the Latino population in South Carolina, the vaccination rate among this community, and the perspectives which contributed to their vaccination decision. Two hundred Spanish and Portuguese speaking residents of South Carolina were interviewed using a paper survey conducted by pre-trained interviewers. The survey gathered data …

A Comparison Of The Ways In Which The United States And European Nations Treat Chronic Kidney Disease, Robert W. Pokora Iii

Senior Theses

European nations and the United States of America have vastly different outcomes in their treatment of end-stage renal disease (ESRD) patients, specifically when considering survival rate and patient satisfaction level. Unfortunately, no study has ever detailed the reasons why this is the case. This thesis explores and compares the methods by which the United States and European nations treat chronic kidney disease (CKD) and ESRD patients. A literature review aimed to determine factors contributing to the varying outcomes between the two nations, and a Healthcare Provider Survey was crafted and administered to United States healthcare providers in order to determine …

Impacts Of Fda Approval And Medicare Restriction On Antiamyloid Therapies For Alzheimer’S Disease: Patient Outcomes, Healthcare Costs, And Drug Development, Rouen Brockmann, Joanna Nixon, Bryan L. Love Pharm D., Ismaeel Yunusa Ph. D.

Faculty Publications

In 2021, the US Food and Drug Administration (FDA) granted approval to aducanumab, an antiamyloid antibody for early-stage Alzheimer's disease, despite a lack of clear clinical evidence demonstrating the drug's cognitive benefits. The manufacturer initially priced the drug at a staggering $56,000 per year, a price that was later reduced to $28,200. Unfortunately, these costs do not include the additional expenses associated with monitoring the treatment. However, the Centers for Medicare and Medicaid Services (CMS) recently announced that they will only cover individuals enrolled in clinical trials and will limit coverage of future antiamyloid antibodies. This discrepancy between the FDA …

The Associations Of Built Environments On College Students' Physical Activity Levels, Catherine M. Neel

Senior Theses

The issues with American physical activity infrastructure have been causing The United States to have lower levels of physical activity compared to other developed countries. The social and physical built environments of college students typically provide more access for students to be able to be active; however most students still do not meet the recommended amount of physical activity. The purpose of this study was to determine what in their physical and social environment that students utilize in order to participate in physical activity and what aspects of their environment discourage physical activity or limit access to being active. This …

Comparative Medicaid Policy Analysis Related To Maternal And Infant Birth Outcomes In South Carolina, Cassidy L. Lena

Senior Theses

The United States despite being one of the most industrialized and wealthiest nations in the world, has the worst maternal and child health outcomes of any industrialized nation. The rates of maternal morbidity, mortality, and infant mortality have been increasing within the past decade, when many causes of death for this population are preventable. This study conducted a literature review on Medicaid policies and associated programs between three states (South Carolina, North Carolina, and California) in order to gain background information. Secondly, a comparative Medicaid policy analysis was completed using the Centers for Disease Control and Prevention [CDC] framework, which …

Accessibility Of Medical School To Students With Physical Disabilities, Shelby A. Cowan

Senior Theses

This thesis is an exploration of perceived and institutional barriers to matriculation into medical school for students with physical disabilities. Factors such as the lived admissions experience, available accommodations and supportive resources, and legal considerations surrounding a student's disclosure of their disability are examined; however, future work is needed to better access this population of students and empower them to become physicians and use their unique perspective to benefit patients.

Accuracy Of Therapeutic Drug Monitoring In Vancomycin And The Pharmacist Role: A Retrospective Case-Series, Kateryna Parkhomenko

Senior Theses

Vancomycin is a mainstay of therapy for treating virulent and resistant infections, especially methicillin-resistant Staphylococcus aureus (MRSA). However, vancomycin requires therapeutic drug monitoring (TDM) for optimal dosing and treatment. This requires pharmacists to calculate a dosing regimen that correlates to appropriate goal vancomycin concentrations in the blood. Dosing vancomycin can be difficult, as it varies on a patient’s weight, renal function, age, etc. Doses may have to be adjusted in response to out-of-range concentrations, which requires further pharmacy calculations. Inaccurate dosing poses a risk to patient safety and places a resource and time burden on pharmacists. If vancomycin dosing methods …

Wernicke's Encephalopathy: Mapping The Risk Factors Throughout The State Of South Carolina, Shannon M. Rychener

Senior Theses

Wernicke’s Encephalopathy is a consistently underrecognized neurodegenerative brain disorder resulting from prolonged thiamine deficiency. Clinical presentation of the disease results from brain lesions attributable to thiamine deficiency. Because these lesions occur in various locations in the cerebral cortex, symptoms can vary significantly. Varied presentation of symptoms, in addition to the lack of a widely accepted biomarker for the disorder cause challenges to clinicians when identifying and diagnosing the disorder. Due to these challenges, healthcare providers must heavily rely on patient history and risk factor prevalence when multiple symptoms of the disorder are present. By mapping the prevalence of the four …

Institutional Intervention In Dat Preparation Among Undergraduate Pre-Dental Students, Remi Brebion

Senior Theses

The objectives of this project were to study the Dental Admission Test (DAT) preparation experience of undergraduate pre-dental students (UPDS) at the University of South Carolina (USC) and to determine actionable steps to raise DAT scores, increase diversity among pre-dental students, reduce financial burdens associated with the DAT, and improve wellbeing in this population.

A quantitative survey was distributed to characterize and create figures about UPDS demographics, use of advising services, preparation experience, and support for university- sponsored preparation resources. Ten phenomenological interviews were conducted to gain insights about the needs of UPDS. Thematic analysis was performed to identify unifying …

Reducing Falls Among Adult Psychiatric Inpatients Using K-Cards With The Epi, Epfrat Factors, And Nursing Judgment, Katelyn Dunn

Doctor of Nursing Practice Scholarly Projects

In the United States, the highest rates of falls are in the psychiatric inpatient population. Fall reduction was as an organizational goal of the project site, a 352-bed hospital in the Southeastern United States. The Epic Predictive Index (EPI), an automated fall risk assessment tool, had recently been adopted. This project evaluated the impact of an enhanced fall reduction strategy involving the use of Kamishibai Cards (K-Cards), which are a compliance reminder for healthcare staff, to support additional evidence-based identification of fall risk among adults receiving inpatient psychiatric care at the facility. The use of K-Cards with each patient’s current …

Language Services For Populations With Limited English Proficiency (Lep) And The Necessity For Proper Medical Interpretation With A Focus In South Carolina, Elizabeth Pung

Senior Theses

Linguistically appropriate healthcare is a cornerstone of providing quality patient care. Provider-patient communication is imperative to achieving linguistically appropriate healthcare; unfortunately, language barriers introduced by different spoken languages of patients to their providers hinders this communication. Patients with limited English proficiency (LEP) are ensured accessible healthcare under federal regulations such as the National Standards for Culturally and Linguistically Appropriate Services (CLAS standards); however, a gap between patients with LEP and the healthcare system remains. Not only is there a gap in communication for patients with LEP to their providing physician, but there is a nationwide epidemic resulting in poor health …

The Impact Of The Covid-19 Pandemic On Pediatric Emergency Department Visits For Asthma: A Scoping Review, Peyton Law, Robin Dawson

Senior Theses

Background & Objective: Prior to the onset of the COVID-19 pandemic, the most common reasons for ED visits among children ages 0-18 were acute upper respiratory infections and asthma, a chronic disease that causes narrowing and swelling in the airways of the lungs. Asthma has various triggers, one of the most common being respiratory tract infections that further impair the airways (Busse et al., 2010). Caused by SARS-CoV-2, COVID-19 infection is associated with respiratory symptoms including shortness of breath, congestion, coughing, and sore throat. While there was a sharp decline in the number of total pediatric ED after the …