Medicine and Health Sciences Commons^™

Development Of A Streptococcus Mutans Biofilm Model On A Typodont Platform To Investigate Its Dynamics In Orthodontics, Hibah Chughtai

Theses & Dissertations

Introduction: Biofilm formation plays a significant role in dental health, resulting in plaque accumulation, which can lead to caries and oral diseases. Streptococcus mutans (S. mutans) is a key bacterium involved in this process. The goal of this study was to establish a protocol for the development of an S. mutans biofilm on dental typodont teeth to analyze the effects of orthodontic brackets on biofilm formation. Understanding these dynamics is critical for developing strategies to mitigate biofilm accumulation during orthodontic treatment. Methods: S. mutans biofilms were cultivated under three conditions: 96-well tissue culture plates, S. mutans inoculated non-bracketed …

Ccr5-Ligand Decorated Rilpivirine Lipid-Based Nanoparticles For Sustained Antiretroviral Responses, Milankumar Patel

Theses & Dissertations

Antiretroviral therapy (ART) is the standard remedy to improve the health-related quality of life of people living with human immunodeficiency virus (HIV). However, limited access to the viral reservoir has significantly hindered its effectiveness in fully eradicating HIV. Therefore, to improve HIV therapy, here we propose a C-C chemokine receptor type 5 (CCR5)-targeted theranostic lipid Based Nanoparticles (LBNPs) to noninvasively track and specifically deliver the antiretroviral drugs (ARVs) to the viral reservoir. A multi-modular radioactive nanoprobe was synthesized and co-encapsulated with rilpivirine (RPV, an ARV) into the LBNP to achieve a theranostic LBNP that can be tracked by positron emission …

Biobehavioral Correlates Of Multidimensional Fatigue In Men With Prostate Cancer, Kristin Dickinson

Theses & Dissertations

The purpose of this thesis project was to 1) examine trajectories of multidimensional cancer-related fatigue (CRF) in men with prostate cancer during and after radiation treatment completion, and 2) identify biobehavioral correlates (demographic, clinical, co-occurring symptoms, and biologic [inflammatory cytokines]) for the different CRF dimensions.

Data for this secondary analysis were obtained from a descriptive, longitudinal IRB-approved study investigating men with non-metastatic prostate cancer receiving radiation therapy (RT). Data were obtained from 68 participant medical records, self-report questionnaires, and blood samples. Data were collected at: baseline (T1), completion of RT (T2), 6 months (T3) and 2 years (T4) after completion …

A Comprehensive Usability And Economic Analysis Of Heat-Related Wearable Technologies: Applications To Occupational Health, Ryan T. Cannady

Theses & Dissertations

The purpose of this research was to analyze the usability and economic considerations of real-time wearable technologies that are implemented in occupational settings to assess risk of heat stress and heat strain. The study population included current agriculture workers and Department of Energy (DOE), Environmental Management (EM) contractors. We employed a mixed-methods approach to comprehensively analyze the usability and economic considerations of heat-related technologies. Specifically, our approach assessed three distinct aspects the applications of these technologies in occupational settings to comprehensively address our research objective: (1) worker perceptions of heat-related wearable technologies, (2) field-based assessment of these heat-related wearable technologies, …

The Ethical Contributions Of Nudges To Healthcare, Ian Doherty

Electronic Theses and Dissertations

“The Ethical Contributions of Nudges to Healthcare” examines the ethical use, implications, and rationale for using nudges in healthcare. The use of nudges in healthcare are being empirically examined. This leaves much to be examined from the ethical perspective. To examine the ethical perspective, the dissertation lays out how nudges interact with and enhance the biomedical principles of autonomy and beneficence. The dissertation then turns to clinical ethics. Nudges, more specifically the framing effect, are paired with trust in the patient-physician relationship to discern how best to aid a patient in his or her medical decision-making. The dissertation then investigates …

The Ethics Of Involuntary Psychiatric Hospitalization: A Comprehensive Analysis Of Policies, Practice, And Ethical Oversight, Mariah Chobany

Electronic Theses and Dissertations

As a specialized field of medicine, psychiatry presents unique ethical challenges and dilemmas distinct from other medical disciplines. A particularly complex aspect of psychiatric care involves the involuntary treatment of patients who may be unable to make informed decisions about their care or participation in research due to the debilitating effects of their psychiatric condition. This presents a significant challenge for providers and researchers, particularly concerning capacity issues and the informed consent process. Despite the intricacies and complexities of ethical dilemmas in psychiatric treatment and research, there is a notable lack of comprehensive guidance in policies and practices on addressing …

Promoting Confidence And Evidence-Based Practices For Attention-Deficit/Hyperactivity Disorder Among Integrated Primary Care Providers: A Qualitive Improvement Education Initiative, Omar Samateh, Margaret Emerson, Kayla Meisinger, Taylor Wilson, Leeza Struwe

Doctor of Nursing Practice Projects: College of Nursing

Introduction: Primary Care Providers (PCPs) are seeing growing number of patients presenting for adult attention-deficit/hyperactivity disorder (ADHD) evaluations as a result of social media influences highlighting ADHD. Yet, PCPs report lacking confidence and education with adult ADHD. The purpose of this quality improvement study was to develop educational materials to promote confidence, competence, and adherence to ADHD evidence-based recommendations among integrated care PCPs. Methods: A literature review and retrospective chart review of 19 patients were used to create 1) Baseline ADHD Provider Education (PE) tool, 2) Standardized ADHD Diagnosis (SAD) referral process, 3) ADHD Assessment, Treatment, and Monitoring …

Bio-Preparedness In A Global Context: Multi-Site International Study Investigating Global Health Security Challenges In Egypt, Oman, And The United States, Rima M. Al Balushi

Theses & Dissertations

The COVID-19 pandemic exposed myriad vulnerabilities globally within public health systems, from inadequate bio-risk management in laboratories to overwhelming utilization of hospital resources and disparities in vaccine access and uptake. The Global Health Security Index (GHSI), which critically evaluates health security domains including health systems and risk environments, reports serious weaknesses in global health security. This dissertation aims to investigate critical aspects of global health security domains by examining factors impacting biosafety and biosecurity capacities in laboratories in Egypt, healthcare resource utilization in hospitals in Oman relating to acute respiratory infections (ARI), and COVID-19 vaccine uptake in the United States. …

Prospective, Crossover, Comparative Study Of Two Methods Of Chlorhexidine Bathing, Richard J. Hankins

Theses & Dissertations

Bathing intensive care unit (ICU) patients with chlorhexidine gluconate (CHG) decreases hospital acquired infections (HAIs). The optimal method of CHG bathing remains undefined. Prospective cluster crossover study comparing CHG daily bathing with 2% CHG impregnated cloths versus 4% CHG solution. In phase 1, from January 2020 through March 2020, one ICU utilized 2% cloths, while the other ICU utilized 4% solution. After an interruption caused by the COVID-19 pandemic, in phase 2, from July 2020 through September 2020, the unit CHG bathing assignments were reversed. Swabs were performed three times per week from patients’ arms and legs to measure skin …

From Policymaking To Legislation, The Need For A Secular Turn In Bioethics Discourse To Uphold, As A Function Of The Greater Good, Policy For Legislation Of Medically Aided Dying In The United States Of America, Scott Dyer

Electronic Theses and Dissertations

A person’s right to self-determination is a central aspect of living in a democratic nation. Similarly, decisions regarding medical care are generally left up to the patient to determine what treatment is or is not appropriate. The same should apply to end-of-life care as well, especially when a patient desires to hasten his or her death via medically aided dying. However, due to the illegality of medically assisted dying in most of the United States, the right to a self-determined death is not possible for the majority of American citizens. One of the main reasons for this is due to …

Specifically Targeting Muc16 For Fluorescence-Guided Surgery Of Pancreatic Ductal Adenocarcinoma, Kathryn M. Muilenburg

Theses & Dissertations

Pancreatic cancer is a lethal disease with a low 5-year survival rate and a high rate of resection recurrence. However, surgery remains the only treatment with curative potential for pancreatic cancer. Many factors such as high desmoplasia, a lack of intraoperative imaging, and micrometastatic disease contribute to the high rate of incomplete resections in pancreatic cancer. Fluorescence-guided surgery (FGS) is a potential intraoperative tool for application in surgical resection. FGS works through passive or active targeting of a free dye or dye-containing moiety (e.g. antibody, peptide, and nanoparticles) to specifically fluoresce the tumor compared to the surrounding normal, fibrotic, and …

Formulation And Characterization Of Biologics – From Sirna To Monoclonal Antibodies, Chinmay M. Jogdeo

Theses & Dissertations

Biologics are a rapidly growing class of therapeutics, encompassing a wide range of modalities, with gene therapy products and monoclonal antibodies (mAbs) constituting the majority. Proper formulation and characterization of these complex therapeutics is crucial to ensure their safety and therapeutic efficacy.

This dissertation focuses on two main areas: the development of a novel renal-targeted siRNA delivery system and the assessment of structural and conformational stability of mAbs in a simulated subcutaneous (SC) environment.

The first part of this dissertation presents the synthesis and characterization of a novel renal-targeted polymer for selective siRNA delivery to injured kidneys. Inulin was modified …

Developing Naturalistic Precision Functional Mapping For High-Density Diffuse Optical Tomography, Aahana Bajracharya

McKelvey School of Engineering Graduate Student Theses & Dissertations

Advancements in non-invasive imaging have enabled extensive research into higher-order cognitive functions of the brain. Functional Magnetic Resonance Imaging (fMRI) has provided valuable insights into brain networks underlying various cognitive processes. However, limitations such as confined environments and scanner noise pose challenges for fMRI to be broadly applicable across all demographics and experimental conditions, especially in speech and language studies. Because of this, there is a need for complementary techniques that can help understand the brain as it functions during everyday scenarios. High Density Diffuse Optical Tomography (HD-DOT) is an emerging functional near-infrared spectroscopy-based technique with comparative advantages over fMRI, …

Developing Naturalistic Precision Functional Mapping For High-Density Diffuse Optical Tomography, Aahana Bajracharya

McKelvey School of Engineering Graduate Student Theses & Dissertations

Advancements in non-invasive imaging have enabled extensive research into higher-order cognitive functions of the brain. Functional Magnetic Resonance Imaging (fMRI) has provided valuable insights into brain networks underlying various cognitive processes. However, limitations such as confined environments and scanner noise pose challenges for fMRI to be broadly applicable across all demographics and experimental conditions, especially in speech and language studies. Because of this, there is a need for complementary techniques that can help understand the brain as it functions during everyday scenarios. High Density Diffuse Optical Tomography (HD-DOT) is an emerging functional near-infrared spectroscopy-based technique with comparative advantages over fMRI, …

"Does Anyone Believe Me"?: The Traumatization Of Domestic Violence Survivors In The Criminal Justice System, Olivia Depalma

Master of Arts in Human Services

Survivors of domestic violence are often subject to chronic trauma as well as a heightened risk of injuries and mental health problems and disorders. The intention of the author is to focus on how trauma impacts a survivor’s ability to maneuver and interact with the criminal justice system (CJS). Prior studies have shown how survivor’s behaviors, usually the result of trauma, can lead to misconceived notions and beliefs in court officials and those involved in the CJS. Survivors will often face judgment, doubt, and criticism in the CJS, and this can impact their willingness to come forward, report the abuse, …

Analyzing Errors Across Nonword Repetition Tasks For Clinical Utility Among Children Who Speak African American English, Tatum Carver-Dews

LSU Master's Theses

Purpose

Within the context of African American English (AAE), this study aimed to examine the clinical utility of three different types of NWR tasks to differentiate children with Developmental Language Disorder (DLD) from those who are typically developing (TD), by percentage of phonemes correct (PPC) and by type of error (e.g., consonants or vowels; omissions or substitutions). Additionally, this study allowed for examination of the relationship between the children’s NWR performance and their density of dialect-specific forms.

Methods

The data came from 50 kindergarteners (25 females, 25 males) who had participated in a multi-year study of childhood DLD within the …

Cognitive Behavioral Therapy (Cbt) Interventions For Group Therapy For College Students Experiencing Depression, Ty Ogren

Dissertations, Theses, and Projects

This group manual was created to support college students struggling with a depressive mood disorder such as Major Depressive Disorder. The instance of mental health concerns, including depression, have increased greatly over the last several years. Depression is the most common mental health concern for college students, and the rate at which they experience depressive symptoms has exceeded that of the general population. Depressive symptoms in college students can lead to many concerns like poor academic achievement, self-isolation, poor diet and nutrition, and suicidal ideation (Liu et al., 2022). This group manual aims to equip college students struggling with depression …

An Evidence-Based Preceptor Development Program For Nurse Anesthetists, Raleigh Todd

Doctoral Projects

Abstract

Problem Statement: The success of the student registered nurse anesthetists (SRNA) is heavily influenced by experiences in the clinical setting, often encompassing a variety of preceptors throughout their respective anesthesia programs. Despite the importance of the preceptor role, many preceptors feel unprepared, and it is estimated most certified registered nurse anesthetists (CRNAs) who precept students have received no formal training in the preceptor role.

Purpose: The purpose of this project is to develop and evaluate an evidence-based preceptor education program for CRNA preceptors, utilizing evidence from literature and input from practicing nurse anesthetists. This program helps provide support by …

Mild Traumatic Brain Injury In Justice-Involved Individuals And Executive Function Consequences On Transition And Reintegration Into The Community, Alaina L. Randerson

Student Capstone Papers

The United States has the highest documented incarceration rate in the world (Carson, 2022), with an increasing number of justice-involved individuals (JII) potentially affected by mild traumatic brain injury (mTBI). Despite the high prevalence of mTBIs in the general population, limited research exists on the prevalence and impact of mTBIs in JII. Preliminary evidence suggests that the prevalence of mTBIs in incarcerated individuals is 50 times higher than in the general public (Siegler et al., 2017). This study aimed to explore the lived experiences of JII with mTBI, focusing on the origin of mTBIs, executive dysfunction, and the occupational barriers …

Development Of A Health Education Intervention And Its Effectiveness In Improving Mmr Vaccination Confidence, Attitude And Uptake Among Parents Attending Public Health Clinics In Kuala Lumpur, Aida Mohd Azlan

Student Works (2020-2029)

Despite the progress made in Malaysia's vaccination programmes, measles continues to persist. Parental confidence in measles vaccines plays a pivotal role in ensuring successful immunisation. However, there is currently limited research on effective interventions to measure outcomes related to parental trust in MMR (measles, mumps, rubella) vaccination programmes in Malaysia. Hence, this study aims to determine the effectiveness of Health Education Intervention in improving MMR vaccination confidence, attitude, and uptake among parents attending Public Health Clinics in Kuala Lumpur. Methods: This multi-phase quantitative study, conducted from June 2022–March 2024, utilised the Health Belief Model to assess parental vaccine confidence and …

Effectiveness Of An Improved Leprosy Lakar Training On Knowledge And Skills Among Healthcare Workers In Primary Healthcare In Pahang Malaysia., Nuraihan Zafirah Zainal Abidin

Student Works (2020-2029)

Leprosy, a neglected chronic tropical disease caused by Mycobacterium leprae, poses significant health challenges due to its potential for irreversible disabilities and disfigurement. Adequate leprosy training for healthcare workers (HCWs) is crucial for early detection and prompt treatment, thereby preventing complications and reducing transmission risks. This study aimed to revise and evaluate the effectiveness of leprosy LaKAR* training on knowledge and skills of leprosy among HCWs in primary healthcare in Pahang, Malaysia. The study employed a sequential exploratory, mixed-method design consisting of two phases. Phase 1a was a qualitative study identifying gaps in current LaKAR training among HCWs at …

Preparing Spiritually Resilient Warriors In The Canadian Special Operations Forces Command, Vic Morris

Doctor of Ministry Major Applied Project

Morris, Victor E. “Preparing Spiritually Resilient Warriors in the Canadian Special Operations Forces Command.” Doctor of Ministry. Major Applied Project, Concordia Seminary, 2024. 285 pp.

The Canadian Armed Forces has outcomes and expectations for warriors to be spiritually resilient but does not have a training program that has been researched, tested, and validated to achieve this. This study investigates how chaplains can prepare spiritually resilient warriors in CANSOFCOM. A chaplain-led spiritual resilience course was created and delivered to CANSOFCOM members. The course was aligned with the holistic wellness strategy of OPF2, and designed as an inductive, experiential learning experience. An …

Navigating Caregiving: Community Resources And Support Systems For Individuals With Severe Mental Illness Living With Aging Parents, Adam Thai

DNP Qualifying Manuscripts

People with severe mental illness (SMI) who are cared for by aging parents are a growing concern within the community, due to their potential high utilization on healthcare facilities and community infrastructure. Many utilize hospitals and emergency departments to seek behavioral, social, and housing support instead of outpatient behavioral healthcare. There is a disconnect in finding social support that is a result of learned reliance and dependence on their aging parents for financial and caregiving support. Healthcare providers should be mindful of the long-term issues this population faces once they are without parental support, such as increased risks for criminality …

Tnf Prevents Establishment Of Anti-Tumor Immunity And Elucidates Toxicities Following Myxoma Virus Based Oncolytic Virotherapy, Miriam Beatriz Valenzuela Cardenas

Biomedical Sciences ETDs

Tumor Necrosis Factor Alpha (TNF) can lead to tumor regression through its direct cytolytic activity, yet it has also been implicated to facilitate tumor progression. This scenario complicates the efficacy and applicability of TNF based therapeutics as treatment for malignancies. In the context of oncolytic virotherapy (OV) which uses replicating viruses to treat tumors and acts by triggering production of pro-inflammatory cytokines, exploring such mechanisms is vital. Here we show that a Myxoma based oncolytic virus (vPD1/IL12) can induce large amounts TNF. The presence of TNF in the context of vPD1/IL12 plays a detrimental role both for tumor regression by …

5-Fluorouracil Induced Oxidative Stress Is Variable Across Triple Negative Breast Cancer Cell Lines, Rachel L. Walker

Departmental Honors & Graduate Capstone Projects

Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer with treatment limited to chemotherapy. However, not all patient tumors respond to chemotherapy. The variable cytotoxic effects of chemotherapies may be due to how cancer cells regulate reactive oxygen species (ROS). In this study, we examined two mouse breast cancer cell lines: 4T1 and EO771, vary when treated with hydrogen peroxide (H2O2) and 5-Fluorouracil (5FU), known ROS-inducing substances. In 4T1 cells H2O2 increased oxidized DNA but caused minimal cell death. While in EO771 cells that same amount of H2O2 caused complete apoptosis. Cell number, ROS, and cell death showed …

Corneal Transplants And Their Impact, Bianca Estrada

Honors Capstones

A corneal transplant, also called keratoplasty or corneal grafting, is a type of surgery where damaged or diseased corneal tissue is replaced by a healthy donor cornea. The first successful corneal transplant was performed in 1905 by Dr. Eduard Zirm, but since then, surgical advancements have developed greatly, leading to more beneficial outcomes. Corneal blindness is a major form of reversible blindness that is manageable with healthy donor cornea transplantation. Other recipients or possible candidates for corneal transplantation include those with keratoconus, Fuchs’ dystrophy, eye infections, or eye injuries. This remarkable surgery is now one of the most common transplant …

Effects Of Modification In Limonene And Geraniol On The Properties Of Thermal Cured Polyurethane Films, Sauravkumar Rajeshbhai Patel

Electronic Theses & Dissertations

The increasing demand for green materials has inspired in-depth research into biobased polymers; among these polymers, polyurethanes stand out because of their widest range of applications: coatings, adhesives, and biomedical devices. The subject of this paper is the preparation of bio-based polyurethane films based on the polyols synthesized from renewable feedstocks such as limonene, geraniol, and soybean oil. Limonene and geraniol were chemically modified from natural sources such as citrus fruits and essential oils to high-functionality polyols. Characterization of such polyols showed that geraniol had the highest hydroxyl (OH) value and thus geraniol-based polyurethane films were highly influencing in reactivity …

Targeting Myeloid Cell Iron Metabolism In Salmonella-Induced Colitis, Mariella Arcos Padilla

Biomedical Engineering ETDs

Salmonellosis is a severe infection caused by Salmonella enterica serovar Typhimurium, leading to significant global morbidity and mortality.

Previous studies have shown that mice lacking the iron storage protein ferritin heavy chain (FTH1) in myeloid cells exhibit worsened Salmonella infection. Nuclear receptor co-activator 4 (NCOA4) directs FTH1 autophagic degradation to release iron from storage during conditions of low iron. However, the role of myeloid NCOA4 in regulating bacterial infections remains unclear.

Here, we found that myeloid NCOA4 deficiency augments spleen iron levels and increases cellular iron accumulation, oxidative stress, and ferroptosis in bone marrow-derived macrophages (BMDM) cells. This deficiency also …

Conceptualization, Measurement, And Contributors To Participation Among People Living With Parkinson’S Disease, Moon Young Kim

WUSM Theses and Dissertations – All Programs

Participation is a key outcome of rehabilitation and key to successful aging. Individuals with Parkinson’s disease (PD) often experience significant challenges in maintaining participation in meaningful activities and roles. This dissertation examines the influence of living with PD on participation by integrating findings from three studies: a systematic review, a cross-sectional study, and a longitudinal study.

The systematic review synthesized the existing quantitative research on participation in people with PD, revealing inconsistencies in the conceptualization of participation. While the evaluation tools aimed at assessing participation in PD showed acceptable coverage of domains of participation, the assessment of the aspects of …

Dental Hygiene Programs’ Use Of Oral Health Literacy Techniques For Special Needs Patients And Caregivers, Socorro D. Tejeda Diaz

Dental Hygiene ETDs

This study examined oral health literacy communication techniques in dental hygiene programs across the U.S. for special needs patients and their caregivers. The study surveyed 46 U.S. dental hygiene program directors on communication techniques, degrees offered, and subject areas. Two-sample t-tests compared differences in communication techniques between AAS and BAS and subject areas. Most respondents routinely employed printed materials with 2 or 3 concepts, speak slowly, and simple language. When comparing the variances in communication techniques offered in AAS and BAS, we observed a t-statistic of 2.06 with a corresponding p-value of 0.54. This suggests that the mean communication techniques …