Medicine and Health Sciences Commons^™

Bystanders’ Perspectives On The Provision Of Informal, Hospital-Based Care To Bedridden Patients With Cancer In Sri Lanka, B. Sunil S. De Silva

Nursing ETDs

Due to the nursing shortage in Sri Lanka, patients need informal caregivers, known as bystanders, to help provide patient care. This study described bystanders’ perspectives on informal, hospital-based care to bedridden patients with cancer in Sri Lanka. In this qualitative descriptive study, 17 bystanders at Apeksa/Cancer Hospital, Sri Lanka, were recruited using snowballing sampling. Data were collected through telephone interviews and analyzed using content and thematic analyses. Findings showed that paid and unpaid bystanders cover all caregiving tasks with minimum interaction with nurses. Unpaid bystanders described the need for same-sex bystanders and additional help with patients’ mobilization and specialized care. …

Investigation Of Proliferation Suppressors In Genetic Fitness Screens, Walter Frank Lenoir Iv

Dissertations & Theses (Open Access)

Innovation of CRISPR gene-editing technology has provided scientists genome manipulation tools that allowed rapid advancement of scientific capabilities and thus improved our ability to systematically study mammalian genetic functional profiles. Genome-wide CRISPR knockout screens conducted in collections of human cell lines can knock out genes at multiple loci, and have provided new insights into functional roles for independent genes. This method has launched massive efforts in looking across genetic backgrounds for context specific genetic vulnerabilities within cancer. Much of the research effort thus far has been spent on optimizing phenotype distinctions between essential, genes required for cell fitness, and non-essential, …

Correlations Between The Radiation Dose To Cochlear And Sensorineural Hearing Loss In Head And Neck Cancer, Dr.Apoorva K. V

Kasturba Medical College, Mangalore Theses and Dissertations

No abstract provided.

Cancer-Targeting Immunostimulatory Peptides As An Immunotherapeutic Approach To Cancer, Rachel Montel

Seton Hall University Dissertations and Theses (ETDs)

This dissertation reports the synthesis and biological applications of bifunctional trimeric peptides with B7H6-derived NKp30 binding motifs that serve to activate an immunocytotoxic response in natural killer cells and a GRP78-binding motif that can target tumors that express surface GRP78. In this manner the cancer-targeting immunostimulatory peptides are anticipated to directly bind and activate effector NK92-MI cells while also recognizing and binding to target A549 tumor cells to facilitate NK cell-dependent immunocytotoxicity of the targeted tumors. The NKp30 binding peptide motifs are derived from the tumor associated B7H6 antigen that is often downregulated or shed from the surface of tumors …

Mechanisms Of Cross-Presentation By Cdc1s, Derek James Theisen

Arts & Sciences Electronic Theses and Dissertations

Classical dendritic cells (cDCs) are specialized antigen presenting cells that can be divided into distinct subsets based on the types of pathogens they respond to and the type of immune response they generate. The cDC1 subset is specialized in priming CD8 T cell responses through the process of cross-presentation. During cross-presentation, exogenous protein antigens are taken up by cDC1 and presented on MHCI molecules, allowing for the priming of CD8 T cells during conditions when DCs themselves are not directly infected. The ability to cross-present in vivo is unique to cDC1, and is essential for anti-viral responses and rejection of …

Ligand-Installed Polymeric Nanocarriers For Combination Chemotherapy, Xinyuan Xi

Theses & Dissertations

Combination chemotherapy remains the mainstay of cancer treatment because such strategy targets different cell signaling pathways to decrease the likelihood of developing protective mechanisms by cancer cells, thereby delaying the onset of recurrence and prolonging the survival. The co-delivery of binary drug combination via a single nanocarrier provides benefits in reducing dose-limiting toxicities, improving the pharmacokinetic properties of the cargo, spatial-temporal synchronization of drug exposure, and synergistic therapeutic effects. Rational design of such regimen is crucial for maximizing the therapeutic effects since only certain drug ratios exposed to the target might be synergistic while other ratios exert additive or even …

Factors Affecting Esophageal Tissue Radiation Response, Latisha T. Pryor

UNLV Theses, Dissertations, Professional Papers, and Capstones

Radiation-induced esophageal cancer can be a deadly and unfortunate secondary outcome of radiotherapy or chronic occupational exposure to radiation. Although the esophagus is known to be a radiosensitive organ, it is under studied and further information regarding how dose and radiation quality impact its sensitivity may provide strategies to prevent esophageal cancer. The purpose of this thesis was to understand factors that play a role in the tissue’s radiosensitivity that may relate to its cancer risk. In this study, we used two esophageal 3D models, as well as both human and mouse cells, to define radiation quality and dose dependent …

Statistical Methods For Resolving Intratumor Heterogeneity With Single-Cell Dna Sequencing, Alexander Davis

Dissertations & Theses (Open Access)

Tumor cells have heterogeneous genotypes, which drives progression and treatment resistance. Such genetic intratumor heterogeneity plays a role in the process of clonal evolution that underlies tumor progression and treatment resistance. Single-cell DNA sequencing is a promising experimental method for studying intratumor heterogeneity, but brings unique statistical challenges in interpreting the resulting data. Researchers lack methods to determine whether sufficiently many cells have been sampled from a tumor. In addition, there are no proven computational methods for determining the ploidy of a cell, a necessary step in the determination of copy number. In this work, software for calculating probabilities from …

Microbial Experience Influences Tumor- Infiltrating T Lymphocytes, Hanna Groeber

Masters Theses

Immune cells, including T cells, have been used for anti-cancer therapy with varying degrees of success. One potential reason for immunotherapy failures in clinical trials may be that typical specific pathogen free (SPF) mice do not accurately replicate human microbial experience, which has important influence on shaping the adaptive immune response. Recently, several previous studies have shown that the immune system of SPF mice more closely resembles newborn human immunity, whereas immune systems from mice exposed to diverse pathogens more closely reflect adult human immunity.

To study the impact of microbial experience on the immune response, we have adopted a …

Hpv Vaccination In Females: The Role Of Primary Health Care And Primary Health Care Providers, Brooke Bouza

Graduate Theses and Dissertations

Two reasons for subpar coverage of the Human papillomavirus (HPV) vaccine are missed clinical opportunities and nonacceptance of the vaccine upon recommendation from a medical provider. The purpose of study one was to examine factors associated with access and adherence to physician’s recommendations in association with HPV vaccine uptake. Data were obtained from National Health Interview Survey (2017). Variables theoretically related to clinical opportunities and adherence to physician’s recommendations were examined in association with HPV vaccine uptake. Univariate logistic regressions were run to determine the associations between the aforementioned variables and uptake of the HPV vaccine. Multinomial logistic regressions were …

The Roles Of Primary Cilia In Cardiovascular Diseases And Cancer, Maha Jamal

Pharmaceutical Sciences (PhD) Dissertations

Primary cilia are sensory organelles present in most mammalian cell types and regulate cell cycle and signaling pathways. Biochemical and molecular dysfunctions of primary cilia are associated with a wide range of diseases, including cancer, ciliopathies polycystic kidney disease (PKD, liver disorders, mental retardation, and obesity to cardiovascular diseases. Dysfunction in endothelial cilia contributes to aberrant fluid-sensing and results in vascular disorders, such as hypertension, aneurysm, and atherosclerosis. In this dissertation, the most recent outcomes on the roles of endothelial primary cilia within vascular biology have been summarized. Moreover, we evaluate the correlation between cilia formation or length and cell …

Log File-Based Dose Reconstruction To Moving Targets During Lung Stereotactic Body Radiation Therapy, Andrew S. Mcguffey

LSU Master's Theses

Purpose: To perform film-based verification of 4D dose reconstruction to moving targets during lung stereotactic body radiation therapy (SBRT).

Introduction: Current patient-specific quality assurance measures to test deliverability of plans with dynamic intensity modulation involve delivering beams to static measurement device and comparing the planned dose to measurement. However, motion-induced dose errors are not detected with static measurement. Previous studies have investigated combining machine log data with respiratory tracking to determine moving-target dose. By combining machine log data with anatomic and density information at each breathing phase from 4D-CT, intrafraction anatomical deformation due to respiration may be accounted for. However, …

An In Silico Study Of Small Molecule Anti-Cancer Agents Targeting Dna G-Quadruplexes, Holli-Joi Sullivan

Theses and Dissertations

Free ligand binding molecular dynamic simulations are a powerful tool used to probe the ligand binding process, mechanism and pathway and the insight gained can help expedite the early stages of drug discovery. Using these methods, we model the binding of two small molecule anti-cancer agents BRACO19 and CX-5461 to a variety of DNA G-quadruplexes (G4s) and a DNA Duplex. The first study focuses on the binding of BRACO19 to three different topological folds (parallel, anti-parallel and hybrid) of the human telomeric G4s. Our detailed analysis identified the most stable binding modes were end stacking and groove binding for the …

Exploring The Experience Of Psychological Distress For Young Adults With Cancer: Implications For A New Diagnosis Of Medical Traumatic Stress, Audrey Ryan

Counseling and Psychology Dissertations

The purpose of this qualitative study was to investigate how a serious medical diagnosis, such as cancer, can act as an acute or prolonged trauma. This was explored through the lived experiences of psychological distress of young cancer survivors. Participants were 12 men and women who had been diagnosed with cancer within the past seven years when they were between the ages of 18 and 39. From these interviews several themes emerged that describe the phenomenon of what I have termed medical traumatic stress.

Trauma from a medical event does not currently meet criteria for PTSD in the DSM-5 …

Reducing Frustration With Wait Times Utilizing Technology And Education: A Patient Satisfaction Improvement Model, Tiffany Brown

Doctor of Nursing Practice (DNP) Projects

Problem: Patients spend considerable amounts of valuable time waiting to be seen by physicians in outpatient clinical settings. Many consider waiting as wasted time, inactive time, or as a lost opportunity which can cause frustration. Research suggests that long clinic wait times have a major impact on patients with cancer causing a significant amount emotional distress. Context: At the hospital and thoracic oncology clinic implementation site which is located in northern California, the target time for a New Patient Visit (NPV) is less than or equal to 90 minutes, and less than or equal to 60 minutes for a Return …

Development Of Hyaluronic Acid-Derived Macromolecular Agents For Multimodal Imaging Probes And Nanomedicine, William M. Payne

Theses & Dissertations

Cancer, one of the most challenging maladies facing modern medicine, is a complex family of diseases that requires a multifaceted treatment regime. In recent years, increased research effort has been placed on the development of nanoscale formulations as a potential method to improve therapeutic efficacy and offer better treatment. Both drug formulation and biomedical imaging has benefitted from the development of new, nanoscale agents. Hyaluronic Acid (HA), a naturally occurring glycosaminoglycan, is a promising platform for the development of new drug delivery systems. Furthermore, hyaluronic acid is the principal ligand for the cell surface receptor CD44, which is overexpressed on …

Efforts To Improve Breast Cancer Screening In A Rural Primary Care Clinic, Michelle Voudrie, Simi Dhillon

Doctor of Nursing Practice Projects

Breast cancer is the second-leading cause of cancer-related deaths among women in the United States. The American College of Obstetricians and Gynecologists (ACOG) recommend women at average risk of breast cancer to begin screening mammography starting at age 40. Mammography has been recognized as the most substantial tool to detect breast cancer. However, many rural organizations have seen a decrease in mammography compliance rates. The goal of this project was to create an evaluation and follow-up protocol for women in a rural primary care clinic who meet the criteria for ACOG’s guidelines for breast cancer screening which promotes increased compliance …

An Examination Of The Use Of Corticosteroids For Adverse Effects Related To Immunotherapy Treatment In Cancer Patients, Leanne Kilzer

Nursing Capstones

No abstract provided.

Association Of Perfluorinated Chemicals With Endocrino-Carcinogenetic, Obesogenic And Metabolic Health And With Markers Of Chronic Inflammation And Oxidative Stress, Ogbebor Enaholo Omoike

Electronic Theses and Dissertations

First, this study examined the association of perfluorinated chemicals with 1) cardio-metabolic health outcomes and 2) the association of phthalates with cardiometabolic health outcomes, and 3) cardio-metabolic health outcomes while assessing the possibility of additive interactions between perfluorinated chemicals (PFCs) and phthalates. Second, association with markers of chronic inflammation and oxidative stress were explored. Finally, this study examined the association of these chemicals with estrogenic cancers- Breast cancer, prostate cancer, uterine cancer and ovarian cancer.

Using data from the National Health and Nutrition Examination Survey (NHANES), logistic regression models were used to investigate the relationship between PFCs and the cardio-metabolic …

Vestigial-Like 1 Is A Shared Targetable Cancer-Placenta Antigen Expressed By Pancreatic And Basal-Like Breast Cancers, Sherille Denae Bradley

Dissertations & Theses (Open Access)

Cytotoxic T lymphocyte (CTL)-based cancer immunotherapies have shown great promise for inducing clinical regression by targeting tumor-associated antigens (TAA). To expand the TAA landscape of pancreatic ductal adenocarcinoma (PDAC), we performed tandem mass spectrometry analysis of HLA class I-bound peptides from tumors of PDAC patients. This led to the identification of a shared HLA-A*0101 restricted peptide derived from co-transcriptional activator Vestigial-like 1 (VGLL1), a novel putative TAA demonstrating overexpression in multiple tumor types and low or absent transcript expression in normal tissues with the exception of placenta. VGLL1-specific CTL isolated and expanded from the blood of a male PDAC patient …

The Management Of Cancer Pain: Should Interventional Therapies Be Approached As First-Line Treatment Along With Beginning An Opioid Regimen?, Sarah Holmes

The Eleanor Mann School of Nursing Undergraduate Honors Theses

Cancer produces many symptoms, and pain is one of them. When a person is having pain due to cancer, many aspects of the person’s life may be altered or inhibited; for example, activities of daily living may be difficult to perform, their psychological state may be altered, their social lives may be changed, and their overall physical function may be affected in a way that the person may need to modify what they typically do in a normal day. The pain a person experiences depends on the type of cancer, how far the cancer has progressed, and the treatment being …

Parents' Experiences Of Camp For Siblings Of Pediatric Oncology Patients, Kristen Lauren Krueger

MSU Graduate Theses

The diagnosis and treatment of childhood cancer is oftentimes a stressful experience for individuals other than the patient, such as parents and siblings of pediatric oncology patients. Parents and siblings may be impacted in many ways, but there are interventions to help. The purpose of this qualitative study was to understand parents’ lived experiences of having a child who has attended a camp designed for siblings of pediatric oncology patients. Parents (n=5) of siblings that have attended camp for siblings were interviewed with open-ended questions. Data was analyzed using phenomenology procedures. Results from this study indicated that mothers and fathers …

“They Will Think We Are The Cancer Family”: Studying Patterns Of Cancer Disclosure And Communication Among Indian Immigrants In The United States, Kanan Mehta

USF Tampa Graduate Theses and Dissertations

Studies of Indian immigrants in Western countries show that the rates of cancer increase significantly within a generation in the host country. The negative social perceptions associated with health outcomes of cancer often perpetuate limited disclosure regarding the diagnosis of cancer among patients and families. This can result in disrupted communication in clinical settings, while causing increased stress among patients and caregivers. These findings demonstrate the need for studying lived experiences of cancer-related illness and its impacts on social relationships in the domestic and public sphere.

This study explored cancer disclosure and communication among Indian immigrants in the United States …

Design, Development And Evaluation Of Dual Drug Nanomedicine For Non-Small Cell Lung Cancer, Elham Hatami

Theses and Dissertations (ETD)

Resistance to conventional chemotherapy is a big challenge in the treatment of cancer including non-small cell lung cancer (NSCLC). A combination of natural chemo sensitizer agents with chemotherapy offers unique advantages over monotherapy alone. However, free unbound drugs, (in combination or as a single agent), lack tumor-targeted accumulation and therefore can be easily eliminated from the patient body. Moreover, some drugs are hydrophobic, and their organic solvents cause in vivo toxicity, thereby limiting their capability in clinical translation. Herein, dual loaded biocompatible and biodegradable nanoparticles (NPs) using Gemcitabine (Gem)a pyrimidine nucleoside antimetabolite and Gambogic acid (GA) (a highly hydrophobic chemo …

Assay Development For Isolation And Characterization Of Anticancer Properties Of Marine Fungi, Kyra Ricci

Honors Theses

Metabolites from fungi have potential use in the drug discovery process and have been used in the past to develop therapeutic agents for human use. Initial characterization of potential therapeutic properties of fungi is thus an important first step in identifying novel therapeutic compounds. In the present study, marine fungi were isolated from Myrtle Beach and assayed for anticancer properties using the soft agar colony formation assay in a 3D in vitro cellular environment. Many species were isolated from environmental samples, displaying unique morphologies and growth patterns. To optimize the soft agar assay in a six-well cell culture plate for …

Hands To Heart: Art Therapy And Voices Of Cancer, Andrea Verano, Reina A. Bicciche

LMU/LLS Theses and Dissertations

As second-year graduate students from LMU’s Art Therapy program, we are excited to introduce the focus of our Master’s research project, a concept we coined as exhibition as intervention. Our goal is to create a space that brings awareness to the possibilities of exhibition to amplify the voice and increase empathy between artist and viewer. Originally, our vision was to hold the exhibition at Cedars-Sinai to supplement the 2020 Art Therapy Research Symposium. With COVID-19 placing restrictions on public gatherings, the exhibition had to transform from a physical experience to a virtual one. The catalog which began as our secondary …

Engineered Nanoparticles For Site-Specific Bioorthogonal Catalysis: Imaging And Therapy, Riddha Das

Doctoral Dissertations

Bioorthogonal catalysis offers a strategy for chemical transformations complementary to bioprocesses and has proven to be a powerful tool in biochemistry and medical sciences. Transition metal catalysts (TMCs) have emerged as a powerful tool to execute selective chemical transformations, however, lack of biocompatibility and stability limits their use in biological applications. Incorporation of TMCs into nanoparticle monolayers provides a versatile strategy for the generation of bioorthogonal nanocatalysts known as “nanozymes”. We have fabricated a family of nanozymes using gold nanoparticles (AuNPs) as scaffolds featuring diverse chemical functional groups for controlled localization of nanozymes in biological environments, providing unique strategies for …

Treatments For Cancer Given Orally: Patients' Perceptions Of Distress Due To Financial Toxicity, Ellen Carr

Dissertations

Purpose/Aims: For adult participants who have received or are receiving treatment for hematologic and solid tumor malignancies given orally, this study describes the relationship between participants’ experience of financial toxicity (FT), the participants’ perception of distress associated with FT, and participants’ self-identified adherence to prescribed treatments in the context of FT.

Background: FT has emerged as an additional source of distress for cancer patients. The costs of treatments given orally can be prohibitively expensive for patients. Therefore, these patients may experience considerable distress and may not adhere to treatments as prescribed.

Method: Descriptive cross-sectional correlational design study of a sample …

The Use Of Ipad Tablets And Online Videos For Oncology Patient Education To Increase Patient Knowledge And Satisfaction, Tiffany Brown

DNP Qualifying Manuscripts

Abstract

Purpose/Objectives: To provide an overview of the efficacy of using iPad tablets and online education videos to provide cancer related patient education to increase patient knowledge and satisfaction.

Data Sources: A literature search for peer-reviewed articles from 2009-2019. Databases searched include Cochrane, CINAHL, and PubMed. English language terms utilized: waiting, patient experience, patient satisfaction, cancer, positive distraction, oncology, music, patient education, iPad, television, and online education. 10 articles will be utilized for this review.

Conclusions: Patient education videos by way of iPads are more effective in increasing patient knowledge and patient satisfaction when compared to the …

Impact Of A 6-Month Exercise Intervention On Cognitive Function Among Ovarian Cancer Survivors: The Women’S Activity And Lifestyle Study In Connecticut (Walc), Jonica Yu Kao

Public Health Theses

Purpose: Cancer survivors often exhibit symptoms of impaired cognitive abilities after chemotherapy treatment. Physical activity has been shown to be promising in improving cognitive function among survivors for various types of cancer. However, very few studies have addressed this concern among the ovarian cancer patient population specifically.

Methods: The study randomized 111 physically-inactive ovarian cancer survivors into a 6-month exercise intervention (n=59) or an attention-control group (n=52). The FACT-Cog scale was self-reported to understand survivor perceptions of cognitive abilities at baseline and at 6 months. Generalized linear models (GLMs) were executed to examine the effect of the intervention versus attention-control …