Digital Commons Network^™

Unraveling The Complexities Of Myeloid-Derived Suppressor Cells In Inflammatory Bowel Disease, Yangzhuangzhuang Zhu, Siyan Cao

2020-Current year OA Pubs

Myeloid-derived suppressor cells (MDSCs) regulate immune responses in many pathological conditions, one of which is inflammatory bowel disease (IBD), an incurable chronic disorder of the digestive tract and beyond. The pathophysiology of IBD remains unclear, likely involving aberrant innate and adaptive immunity. Studies have reported altered population of MDSCs in patients with IBD. However, their distribution varies among patients and different preclinical models of IBD. The expansion and activation of MDSCs are likely driven by various stimuli during intestinal inflammation, but the in-depth mechanisms remain poorly understood. The role of MDSCs in the pathogenesis of IBD appears to be paradoxical. …

Chronic Viral Mimicry Induction Following P53 Loss Promotes Immune Evasion, Charles A Ishak, Sajid A Marhon, Naïri Tchrakian, Anjelica Hodgson, Helen Loo Yau, Melanie Peralta, Stephanie Gomez, Sheng-Ben Liang, Shu Yi Shen, Raymond Chen, Jocelyn Chen, Biji Chatterjee, Kevin N Wanniarachchi, Junwoo Lee, Nicholas Zehrbach, Amir Hosseini, Parinaz Mehdipour, Siyu Sun, Alexander Solovyov, Ilias Ettayebi, Kyle E Francis, Aobo He, Taiyi Wu, Shengrui Feng, Tiago Da Silva Medina, Felipe Campos De Almeida, Jane Bayani, Jason Li, Spencer Macdonald, Yadong Wang, Sarah S Garcia, Elisa Arthofer, Noor Diab, Aneil Srivastava, Paul Tran Austin, Peter J B Sabatini, Benjamin D Greenbaum, Catherine A O'Brien, Trevor G Shepherd, Ming Sound Tsao, Katherine B Chiappinelli, Amit M Oza, Blaise A Clarke, Robert Rottapel, Stephanie Lheureux, Daniel D De Carvalho

Faculty, Staff and Student Publications

Epigenetic therapies facilitate transcription of immunogenic repetitive elements that cull cancer cells through ‘viral mimicry’ responses. Paradoxically, cancer-initiating events also facilitate transcription of repetitive elements. Contributions of repetitive element transcription towards cancer initiation, and the mechanisms by which cancer cells evade lethal viral mimicry responses during tumor initiation remain poorly understood. In this report, we characterize premalignant lesions of the fallopian tube along with syngeneic epithelial ovarian cancer models to explore the earliest events of tumorigenesis following loss of the p53 tumor suppressor protein. We report that p53 loss permits transcription of immunogenic repetitive elements and chronic viral mimicry activation …

The Ethics Of Gene Editing Hereditary Deafness, Jasmine Borie

Richard T. Schellhase Essay Prize in Ethics

Gene editing has been a hot topic of interest in the field of science, and many gene editing solutions for heritable diseases are in the works. In most cases, gene editing is done with good intentions, but there are some instances where it would not be favorable for reasons that may not be inherently obvious to everyone. Several forms of deafness and hearing loss can be inherited, meaning that it can be passed down from parent to offspring. Curing hereditary deafness using gene editing may seem like a good idea, but it can lead to unintentional discrimination and further stigmatization …

The Second Ever Reported Case Of Acute Bacterial Native Valve Endocarditis Caused By Streptococcus Thoraltensis, Shaun Abid Md, Anton Stolear, Maxim Dulgher, Stuart Zarich

Posters

Streptococcus thoraltensis is a gram-positive coccus first described by Devriese et al. in 1997, who isolated it from the vaginal fluids and intestines of pigs [1]. This species has subsequently been isolated from rabbit feces [2], the human oral cavity [3], placenta [4], and in only five reported cases, the human blood [5]. To our knowledge, only one other case of native valve bacterial endocarditis due to this bacterium has ever been reported [5], as well as a single case of prosthetic valve bacterial endocarditis [6]. Intravenous drug use (IVDU) is a strong risk factor for infective endocarditis. The organisms …

Research Day 2025 Program, Western Michigan University Homer Stryker M.D. School Of Medicine

Research Day

No abstract provided.

Contact Point Spring 2025, Arthur A. Dugoni School Of Dentistry

Contact Point

No abstract provided.

Cuando El Cáncer Se Volvió Colectivo: Testimonios De Una Syndemia Silenciada En Arica, Chile, Isabella Gomez

Chile: Public Health, Traditional Medicine, and Community Empowerment

This independent research study examines the prolonged and multifaceted environmental contamination in Arica, Chile, and its potential impact on public health. Although Arica has historically been a key port city, its industrial role has also made it a site of significant environmental injustice. This study poses the following research question: What are the sources and perceived impacts of environmental contamination in Arica, and how have local communities responded to institutional silence and the lack of accountability? Using a descriptive and qualitative methodology, fieldwork was conducted over several weeks in the city. In-depth interviews were carried out with residents, community leaders, …

Transmisión Vertical De La Enfermedad De Chagas En Inmigrantes Gestantes En Arica: Avances, Barreras Y Desafíos, Ava Van Gelder

Chile: Public Health, Traditional Medicine, and Community Empowerment

Chagas disease, one of the 13 recognized Neglected Tropical Diseases, is traditionally transmitted by the Triatominae insect. However, in Chile, vector-borne transmission has been interrupted and vertical transmission (from mother to child) has emerged as the primary concern. This study explores the impacts of vertical transmission on the immigrant population in Arica, Chile, a city located at the borders of Bolivia and Perú, where approximately 10% of the population consists of immigrants. Semi-structured interviews (n = 9) were conducted with health professionals in Arica, as well as researchers based the Atacama region. Epidemiological factors, diagnosis, treatment, barriers to health, emotional …

Interactions Between Explicit And Implicit Memories During Sensorimotor Adaptation And After Concussion, Devon Lantagne

Dissertations (1934 -)

Sensorimotor adaptation is a form of motor learning whereby a motor skill is adjusted in the face of a disturbance to return performance to desired performance. This process uses memories of previous experiences to guide future movements. While the temporal characteristics of adaptation have been well studied, the extent to which these memories are explicit, implicit, or a mixture of both is unclear. In this Dissertation, I conduct three studies to investigate the relative contributions of sensorimotor memories when adapting to stochastic spring-like loads applied to the hand. By implementing computational modeling and system identification techniques, I fit memory models …

Achieving Total Health Using Food To Heal: A Podcast On A Holistic Approach To Nutrition, Taylor Sharer

Senior Theses

Nutrition is the key to a healthy and happy life. In a world where chronic, avoidable diseases are the leading cause of death, it is necessary to educate the public on how they can improve their overall health and wellbeing using food. Every aspect of health is interconnected, and what we eat can create massive changes in our health. My project focuses on holistic nutrition, providing an easily accessible, science-based and informative discourse about how to reach health and wellness goals through a podcast. Using personalized experience combined with current research, I discuss topics such as whole foods, individualized nutrition, …

Delta-8 Tetrahydrocannabinol Policy And Related Health Impact Among College-Aged Individuals In South Carolina: A Scoping Review, Emily K. Luoma

Senior Theses

After the 2018 Farm Bill passed, loopholes were quickly found that led to the popularization of delta-8 THC, a derivative of delta-9 THC, more commonly known as marijuana. Use of this substance became particularly high in states that criminalized marijuana, such as South Carolina. This scoping review aimed to assess South Carolina’s current delta-8 policies in the context of health-related impacts among college-aged students. Comprehensively analyzing the results of relevant studies, it was determined that there are three commonly observed threats to public health that are direct outcomes of existing policies: 1) a lack of quality control standards; 2) misleading …

The Stigma Surrounding Sex And Sexuality In American Culture, Sophia L. Pollock

Senior Theses

An important question to examine is the origin and implications of the taboo against sex and sexuality. The stigma against these topics encourages negative public health implications like poor sex education, high rates of sexually transmitted infections, and teen pregnancy. History of sexual stigma was examined through physical media and digital articles from the Thomas Cooper Library databases. The background and global perspective of these stigmas are covered, examining how past and distant cultures deal with sex. How sex is portrayed in the media, why a healthy sex life is important, and the subject of sex education are also addressed. …

Building Resilient Vaccine Cold Chains In Sub-Saharan Africa, Maya Tilley

Switzerland: Global Health and Development Policy

The world has made great strides in public health in the past century, with the introduction of vaccines revolutionizing preventative care. Continued research and development has allowed for increased vaccine roll-out, but with a growing number of people to vaccinate, immunization supply chains have struggled to keep up. The cold chain–the systems of refrigeration that keep vaccines cool–is a key facet of the global immunization supply chain. Most vaccines require storage between 2 and 8 degrees Celsius, throughout their whole journey from manufacture to the last-mile. Insufficient cold chain management and technology has led to considerable vaccine wastage, while many …

Exploring The Urban-Rural Divide: Diabetes And Malnutrition In Kisumu Communities, Elizabeth H. Kohler

Kenya: Global Health and Human Rights

No abstract provided.

Existencia Y Percepciones De Intercambio Cultural Entre Medicina Mapuche Y Medicina Tradicional China En Araucanía, Chile: Práctica Y Recepción De Cuidado, Bowei Li

Chile: Public Health, Traditional Medicine, and Community Empowerment

Traditional Chinese Medicine, or TCM, has been documented in Chile since the late 19th century, and since 2006, acupuncture has been formally integrated into the Chilean Ministry of Health (MINSAL) as an “auxiliary” medicine. In spite of the proliferating practice of MTC within Chile, however, very little is known about the state of such practices within the south of Chile, in regions such as La Araucania. Representations of Eastern medicine, such as the advertising of the well-known Chilean tablet Oblea China, show a fascination with traditional Chinese medical practices in relation to the fortitude and health of indigenous peoples of …

Search, The Jackson Laboratory

Search Magazine

No abstract provided.

Alpha-Synuclein Phosphomimetic Y39e And S129d Knock-In Mice Show Cytosolic Alpha-Synuclein Localization Without Developing Neurodegeneration Or Motor Deficits, Youngdoo Kim, Bhupesh Vaidya, Joseph Mcinnes, Huda Y Zoghbi

Duncan NRI Faculty and Staff Publications

Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by motor and nonmotor symptoms. Its pathological hallmarks include the accumulation of misfolded alpha-synuclein (α-Syn) in Lewy bodies and Lewy neurites. Phosphorylation of α-Syn is a prominent feature of these inclusions, but its role in disease pathogenesis remains unclear. To identify the role of α-Syn phosphorylation in synucleinopathy, we generated two Snca knock-in (KI) mouse models carrying phosphomimetic mutations at SncaY39 or SncaS129 (Snca^Y39E or Snca^S129D) which manipulated epitopes phosphorylated in the PD brain. Both Snca^Y39E and Snca^S129D KI mice displayed increased α-Syn phosphorylation, enhanced …

Demographic Variations In Long Qt Syndrome: Analyzing The Impact Of Gender, Ethnicity, And Environmental Factors On Prevalence And Risk, Heidi Bosch

Senior Honors Theses

Long QT syndrome (LQTS) is an arrhythmic condition characterized by delayed repolarization of cardiomyocytes, identified by prolonged QT interval on an electrocardiogram (ECG). LQTS can be caused by congenital mutations of ion channels or acquired through conditions, medications, and environmental factors. Prolongation of the QT interval can trigger deadly arrhythmia including torsade de pointes (TdP). LQTS has been named the top cause of sudden cardiac death (SCD) for young individuals with anatomically normal hearts. The incidence of LQTS has been reported to be between 1:2000 and 1:2500. The demographic differences in LQTS prevalence have not been thoroughly researched. The incidence …

Soluble Cd13 Is A Potential Mediator Of Neutrophil-Induced Thrombogenic Inflammation In Sars-Cov-2 Infection, Pei-Suen Tsou, Ramadan A. Ali, Chenyang Lu, Gautam Sule, Carmelo Carmona-Rivera, Serena Lucotti, Yuzo Ikari, Qi Wu, Phillip L. Campbell, Mikel Gurrea-Rubio, Kohei Maeda, Sharon E. Fox, William D. Brodie, Megan N. Mattichak, Caroline Foster, Ajay Tambralli, Srilakshmi Yalavarthi, M Asif Amin, Katarina Kmetova, Bruna Mazetto Fonseca, Emily Chong, Yu Zuo, Michael D. Maile, Luisa Imberti, Arnaldo Caruso, Francesca Caccuri, Virginia Quaresima, Alessandra Sottini, Douglas B. Kuhns, Et Al

School of Medicine Faculty Publications

The soluble variant of the ectopeptidase CD13 (sCD13), released from the cell surface by matrix metalloproteinase 14 (MMP14), is a potent pro-inflammatory mediator, displaying chemotactic, angiogenic, and arthritogenic properties through bradykinin receptor B1 (B1R). We revealed a link between sCD13 and amplified neutrophil-mediated inflammatory responses in SARS-CoV-2 infection. sCD13 was markedly elevated in patients with COVID-19 and correlated with disease severity and variants, ethnicity, inflammation markers, and neutrophil extracellular trap formation (NETosis). Neutrophils treated with sCD13 showed heightened NETosis and chemotaxis, which were inhibited by sCD13 receptor blockade. Meanwhile sCD13 did not induce platelet aggregation. Single-cell analysis of COVID-19 lungs …

Food For Thought: The Impact Of The Gut-Brain Axis On Mental Health, Emily S. Miiller

Honors Thesis

Research regarding the role of the human microbiome has grown over the years as professionals develop a better understanding of the gut-brain axis. New studies and expanding knowledge on the relationship between the nervous system and gut microbiome promote a deeper understanding of the impact of diet on mental health. Diet plays a crucial role in maintaining a healthy balance between the gut and the brain. Incorporating nutritional modulators, such as probiotics, prebiotics, and vitamins, is crucial for supporting the gut-brain axis by influencing neurotransmitter production, managing inflammation, and promoting the growth of beneficial gut bacteria. On the other hand, …

Ibuprofen, Flurbiprofen Or Naproxen Sodium Minimally Influences Musculoskeletal Adaptations To Treadmill Exercise In Rats, Brandon Roberts, Alyssa Geddis, Alexandra Ciuciu, Marinaliz Reynoso, Nikhil Mehta, Alyssa Varanoske, Alyssa Kelley, Maximus Leiss, Alexander Kolb, Julie Hughes, Marshall Naimo, Ryan Tomlinson, Jeffery Staab

Department of Orthopaedic Surgery Faculty Papers

BACKGROUND: Non-steroidal anti-inflammatory drugs (NSAIDs) may influence musculoskeletal health. The purpose of this study was to compare the effects of three different NSAIDS: naproxen sodium, ibuprofen, flurbiprofen or a placebo on musculoskeletal adaptations in rodents with or without 6 weeks of aerobic exercise.

METHODS: Nine-week-old male Wistar rats (n = 80) were randomized to either exercise (EX) or no-exercise control (CON) conditions and treated with naproxen, ibuprofen (IBU), flurbiprofen (FLU) or placebo (PLA). For exercise, rats ran 5 days per week for 6 weeks at a 5% incline on a motorized treadmill for 30 min. Three-point bending (3 PB) and …

Investigating Mercury Contamination In Urban Fish: Atomic Absorption Spectroscopy And Histological Analysis For Environmental And Human Health, Indy L. Cockrill, Ross Andrew

SPARK Symposium Presentations

Mercury contamination in aquatic ecosystems is a pressing environmental and public health concern, particularly in urban areas where industrial runoff and wastewater contribute to heavy metal accumulation. This study investigates mercury presence in fish from Richland Creek in Nashville, TN, by analyzing histological changes in liver and muscle tissues. Mercury bioaccumulates in aquatic food chains, potentially leading to physiological damage in fish and posing health risks to humans who consume contaminated seafood. While prior research has established mercury’s toxic effects, there is a need for localized studies assessing its presence in urban waterways. The hope is to find histological abnormalities …

The Role Of Androgens On Experimental Pain Sensitivity: A Systemic Review And Meta-Analysis, Elizabeth Wu-Chen, Gourav Banerjee, Elise Requadt, Benjamin Hunter, Thomas J. Baranski, Whitney Trotter Ross, Hadas Nahman-Averbuch

2020-Current year OA Pubs

Animal studies have shown androgens, especially testosterone, may have an analgesic effect on nociceptive behavior. However, it is unclear if this effect is present in humans. This review and meta-analysis aim to summarize and synthesize the role of androgens on experimental pain sensitivity in humans. Studies were included if they examined the (1) relationships between androgens and experimental pain sensitivity, (2) group differences in androgen or pain levels, and (3) the effect of androgen interventions on experimental pain sensitivity. After a comprehensive search, 31 papers were identified. When possible, meta-analyses were performed. Most studies examined the impact of testosterone on …

Clinical Case Study: The Effects Of Saltatory Pneumotactile Stimulation Of Glabrous Hand And Perioral Face On Cerebral Oxygenation, Cognitive Performance, And Sensorimotor Function In An Adult Following Left Hemorrhagic Stroke, Tara L. Hull

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Stroke remains a leading cause of adult disability and a significant global health concern. Effective rehabilitation strategies for cognitive and communicative impairments following stroke are limited (Kuhn & Sharman, 2023). One emerging approach involves repetitive somatosensory stimulation to drive cerebral hemodynamic changes, potentially offering a novel rehabilitative method. Functional Near-Infrared Spectroscopy (fNIRS) is a non-invasive, accessible tool for monitoring these changes during stroke recovery. Prior studies suggest tactile stimulation rapidly affects brain hemodynamics (Custead et al., 2015; Oh et al., 2017). This clinical single-case study explored the use of GALILEO saltatory pneumotactile stimulation applied to the face and hand in …

Music And Word Learning In Children Diagnosed With Developmental Language Disorder, Rebekah G. Sweeney

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Purpose: This study investigates whether incorporating music into vocabulary interventions improves rate of learning and retention of words in children with developmental language disorder (DLD). Emerging literature continues to show the plentiful benefits of music as a tool for intervention in many settings, including the world of speech pathology (Levitin, 2024). However, it is also evident that there is a connection between struggling with language, and struggling with musical elements, such as rhythm and pitch perception, particularly in children with DLD (Boorom et al., 2022; Kreidler et al., 2023). This study seeks to tease out if music is an effective …

Investigating Child-Informed Considerations For Animated Picture Symbols Representing Emotion For Aac Use In Children With Asd, Hannah Kitsmiller

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Development of emotional competence is an important area of consideration when supporting individuals who use augmentative and alternative communication (AAC). Emotional competence includes skills related to identifying and communicating about one’s emotions. Individuals who use AAC may struggle to develop strong skills in emotional competence. One potential barrier to developing emotional competence may be access to symbols that facilitate understanding of the represented emotion. Emotions are abstract and challenging to represent in visual symbols. Additionally, evidence suggests individuals with autism spectrum disorder (ASD) may have visual perceptual differences when viewing faces. Current emotion symbols are often depicted using isolated facial …

Dental Disparities: An Analysis Of Dental Caries Risk Factors Promoting Disparities Between Rural And Urban Communities In Nebraska, Nick Lounsbery

Honors Program: Senior Projects (Public)

The prevalence of dental caries in the United States remains a public health concern, as it is one of the most common chronic conditions across people of all ages. Research shows that preventative measures including brushing, fluoridated water, and regular checkups are effective strategies to mitigate tooth decay. However, there appears to be a divide between rural and urban populations, as the presence of dental cavities is significantly greater in remote areas in the State of Nebraska. Research methods used in this analysis included analyzing accredited academic literature to illustrate how cavities form from a biochemical perspective. Research methods also …

Making The Invisible Visible: Intersectional Perspectives Of Artist Identity And Multiple Sclerosis In The Us Healthcare System, Anna Liza De Leon Evangelista, Chloé Welmond, Emily Rose, Jennifer Gutierrez, Kelly Sheridan, Madeleine Brown, Marissa Barajas, Rowena Luminarias, Nancy Choe

LMU Theses and Dissertations

The intersection of Multiple Sclerosis (MS), systemic healthcare disparities, and art-making remains underexplored within the arts and health literature. While research often highlights the therapeutic benefits of creative expression, it rarely examines how art-making empowers individuals with MS. This study addresses this gap by exploring: (1) how MS influences participants’ art practice, (2) how art impacts the participants’ experiences of MS, and (3) how individuals navigate the United States healthcare system. The research centers on women and gender expansive individuals and takes an intersectional lens to better understand marginalized experiences of those living with MS. These underrepresented groups frequently encounter …

Accelerating Drug Repurposing And Target Discovery Using Deep Learning, Kohong Lin

Dissertations and Theses (Open Access)

Drug discovery is a long-lasting and expensive process. Computational approaches, particularly deep learning techniques, offer the potential to accelerate this process by integrating diverse perspectives from drug discovery theories and capturing intricate patterns within large, multimodal datasets. This dissertation explores deep learning methodologies to accelerate drug repurposing and genetic target discovery. The first aim focuses on integrating multimodal data, including chemical structures, disease genetics, and systems biology, into comprehensive disease knowledge graphs, followed by applying graph neural networks (GNNs) to prioritize repurposable drug candidates. The second aim is to develop a heterogeneous GNN-based approach capable of modelling distinct semantic relationships …

Developing And Validating Brain Tumor Organoid Models To Evaluate Novel Therapeutics In Vitro, Dev P. Patel

Senior Theses

Glioblastoma (GBM), a World Health Organization Grade IV brain tumor, remains one of the most aggressive and treatment-resistant malignancies. It is characterized by rapid proliferation, deep infiltration, and a high level of genotypic and phenotypic heterogeneity. Despite advancements in medical technology and neuro-oncology, GBM remains one of the most treatment-resistant cancers with a median survival rate of only nine months post-diagnosis and less than 5% of patients surviving beyond 5 years of diagnosis. The standard treatment constitutes maximum surgical resection followed by chemotherapy and radiation. These therapeutic strategies are blocked by significant challenges like the blood-brain barrier (BBB), and intratumoral …