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Characterizing The Cutaneous Microbiome Of Eurycea Lucifuga As A Potential Defense Against Chytridiomycosis, Madeline Key Dec 2022

Characterizing The Cutaneous Microbiome Of Eurycea Lucifuga As A Potential Defense Against Chytridiomycosis, Madeline Key

Senior Honors Theses

Chytridiomycosis is an emerging infectious disease that is significantly reducing global amphibian populations. The disease is caused by Batrachochytrium dendrobatidis (Bd), a fungus that lethally modifies amphibian skin. Recent research has suggested that the cutaneous microbiome of individual amphibians may play a role in susceptibility to the pathogen. In this study, twelve cave salamanders (Eurycea lucifuga) were collected. Cutaneous bacteria from each salamander were isolated and identified using Sanger Sequencing. Additionally, a Bd-challenge assay was performed to determine each isolate’s antifungal activity. Results indicated many microbial isolates possessed inhibitory capabilities against Bd, which may …


Weekly Telehealth Weigh-In For Bmi Reduction, Kelly Ahmad Dec 2022

Weekly Telehealth Weigh-In For Bmi Reduction, Kelly Ahmad

Student Scholarly Projects

Practice Problem: The citizens of the United States are known for being overweight or obese. The Centers for Disease Control and Prevention (CDC, 2021) reported that approximately 74% of adults are either overweight or obese. PICOT: The PICOT question that guided this project was In overweight adults (P), does telemonitoring weekly for counseling and weigh-in (I) compared to current practice (C) decrease BMI over an 8-week period of time (T)? Evidence: The citizens of the United States are known for being overweight or obese. The Centers for Disease Control and Prevention (CDC, 2021) reported that approximately 74% of …


Increasing The Prescribing Of Pre-Exposure Prophylaxis (Prep) With A Pre-Exposure Prophylaxis Screening Tool, Cassey Hall Dec 2022

Increasing The Prescribing Of Pre-Exposure Prophylaxis (Prep) With A Pre-Exposure Prophylaxis Screening Tool, Cassey Hall

Student Scholarly Projects

Practice Problem: Human Immunodeficiency Virus (HIV) is one of the leading pandemics in the world. In 2019, 38 million people were living with HIV around the world. Of those, roughly 87% were aware of their HIV status.

PICOT: In patients with high risk for HIV, how does implementing a pre-exposure (PrEP) screening tool compared to randomly screening for pre-exposure prophylaxis (PrEP) affect the prescribing of pre-exposure prophylaxis (PrEP) within eight weeks?

Evidence: In 2015, the World Health Organization (WHO) recommended PrEP for the prevention of HIV in high-risk individuals. The patients include men who have sex with …


The Mechanisms Of Mitochondrial Dysfunction In T Cell Aging During Chronic Viral Infection, Madison B. Schank Dec 2022

The Mechanisms Of Mitochondrial Dysfunction In T Cell Aging During Chronic Viral Infection, Madison B. Schank

Electronic Theses and Dissertations

Human immunodeficiency virus (HIV) and hepatitis C virus (HCV) infections induce a myriad of disturbances to CD4 T cell functions, including mitochondrial compromise, excessive inflammation, increased telomeric DNA damage and attrition, cellular exhaustion and senescence, and accelerated aging. In this dissertation, the mechanisms underlying metabolic failure, accelerated aging, and cellular dysfunctions were evaluated in CD4 T cells from healthy subjects (HS) treated with a telomere-targeting drug (KML001) or HCV-infected individuals or people living with HIV (PLHIV) compared to HS. We observed that KML001-induced telomere injury resulted in mitochondrial swelling and decreased mitochondrial membrane potential, cellular respiration, mitochondrial DNA (mtDNA) copy …


Investigating The Pi3k/Akt/Atm Pathway, Telomeric Dna Damage, T Cell Death, And Crispr/Cas9-Mediated Gene Editing During Acute And Chronic Hiv Infection, Sushant Khanal Dec 2022

Investigating The Pi3k/Akt/Atm Pathway, Telomeric Dna Damage, T Cell Death, And Crispr/Cas9-Mediated Gene Editing During Acute And Chronic Hiv Infection, Sushant Khanal

Electronic Theses and Dissertations

Human Immunodeficiency Virus (HIV) infection initiates major metabolic and cell- survival complications. Anti-retroviral therapy (ART) is the current approach to suppress active HIV replication to a level of undetected viral load, but it is not a curative approach. Newer and sophisticated gene editing technologies could indeed be a potent antiviral therapy to achieve a clinical sterilization/cure of HIV infection. Chronic HIV patients, even under a successful ART regimen, exhibit a low-grade inflammation, immune senescence, premature aging, telomeric DNA attrition, T cell apoptosis, and cellular homeostasis. In this dissertation, we investigated CD4 T cell homeostasis, degree of T cell apoptosis, an …


Species Data And Vector Modeling: Evaluating Datasets For Improved Models Of Ixodes Ricinus Tick Distribution In Europe Under A Changing Climate, Steven Jones Dec 2022

Species Data And Vector Modeling: Evaluating Datasets For Improved Models Of Ixodes Ricinus Tick Distribution In Europe Under A Changing Climate, Steven Jones

Electronic Theses and Dissertations

To increase capacity for monitoring and surveillance of tick-borne diseases, publicly available tick distribution and climate change datasets are required to create accurate predictive distribution models. It is difficult, however, to assess model accuracy and utility when using incomplete datasets.  The more recent development of comprehensive tick databases for Europe and availability of climate change scenarios from multiple IPCC Assessment Reports allows for improved modeling efforts. Multiple tick datasets were combined and three climate change projections were compared by predicting current and future distributions of Ixodes ricinus ticks in Europe using the MaxEnt species distribution model. Overall, much of Europe …


Transcriptomic Profiling Of Trypanosoma Congolense Mouthpart Parasites From Naturally Infected Flies, Sara Silva Pereira, Kawira Mathenge, Daniel Masiga, Andrew Jackson Dec 2022

Transcriptomic Profiling Of Trypanosoma Congolense Mouthpart Parasites From Naturally Infected Flies, Sara Silva Pereira, Kawira Mathenge, Daniel Masiga, Andrew Jackson

All Peer-Reviewed Publications

Background: Animal African trypanosomiasis, or nagana, is a veterinary disease caused by African trypanosomes transmitted by tsetse flies. In Africa, Trypanosoma congolense is one of the most pathogenic and prevalent causes of nagana in livestock, resulting in high animal morbidity and mortality and extensive production losses. In the tsetse fly, parasites colonise the midgut and eventually reach the mouthparts, from where they can be transmitted as the fly feeds on vertebrate hosts such as cattle. Despite the extreme importance of mouthpart-form parasites for disease transmission, very few global expression profile studies have been conducted in these parasite forms. Methods: Here, …


Isolation Of Drug-Sensitive Eimeria Species From Wild Turkey Feces And Development Of A Model Bioshuttle Program For Eimeria Meleagrimitis For Domestic Turkeys, Maria Carolina Trujillo Peralta Dec 2022

Isolation Of Drug-Sensitive Eimeria Species From Wild Turkey Feces And Development Of A Model Bioshuttle Program For Eimeria Meleagrimitis For Domestic Turkeys, Maria Carolina Trujillo Peralta

Graduate Theses and Dissertations

The objective of this thesis was to determine the anticoccidial profile of Eimeria spp. derived from wild turkeys. These drug-sensitive Eimeria spp. have potential to be used as vaccine candidates to control coccidiosis in commercial turkeys. Chapter two consists of a brief literature review focused on coccidiosis in turkeys. Chapter three addresses the methodologies utilized to isolate, recover, and speciate Eimeria recovered from wild turkey feces in the eastern two-thirds of the United States. From this, we successfully obtained single oocyst-derived stocks for E. meleagrimitis, E. dispersa, E. meleagridis, E. gallopavonis, and E. adenoeides. Chapter four describes the experiment conducted …


Effectiveness Of Non-Invasive Respiratory Support Strategies In Patients With Covid-19: A Systematic Review And Meta Analysis, Vinesh Kumar, Umair Arshad Malik, Reshman Kumari, Berkha Berkha, Vijay Kumar, Manoj Kumar, Simran Simran, Suman Suman, Bushra Nasim Dec 2022

Effectiveness Of Non-Invasive Respiratory Support Strategies In Patients With Covid-19: A Systematic Review And Meta Analysis, Vinesh Kumar, Umair Arshad Malik, Reshman Kumari, Berkha Berkha, Vijay Kumar, Manoj Kumar, Simran Simran, Suman Suman, Bushra Nasim

Medical College Documents

Background: The effectiveness of non-invasive respiratory strategies, namely CPAP and HFNO, in reducing the risk of mortality and tracheal intubation in patients with severe COVID-19 is not well established.
Methods: A thorough literature search was conducted across 3 electronic databases (Medline, EMBASE and Cochrane Central) from inception through July 2022. Randomized controlled trials (RCTs) and observational studies assessing the impact of CPAP or HFNO on clinical outcomes in patients infected with COVID-19 were considered for inclusion. End-points included all-cause mortality and risk of tracheal intubation. Evaluations were reported as risk ratios (RRs) with 95% confidence intervals (CI) and analysis was …


Facilitators And Inhibitors To First Adult Care Visits In The Transition From Paediatric To Adult Orientated Inflammatory Bowel Disease Healthcare, Joanna Rea Dec 2022

Facilitators And Inhibitors To First Adult Care Visits In The Transition From Paediatric To Adult Orientated Inflammatory Bowel Disease Healthcare, Joanna Rea

Theses

Background: Inflammatory bowel disease (IBD) can be a very debilitating disease and it is found to be more extensive in children with rapid early progression (Van Limbergen et al., 2008). As adolescents, these children transition from paediatric to adult oriented care. The first adult care visits are a pivotal phase of a successful transition process, where adolescents potentially begin to actively take control of their disease. The aim of this study is to explore the inhibitors and facilitators to first adult care visits in the transition process from paediatric to adult oriented IBD healthcare.

Methods: An exploratory, descriptive, qualitative approach …


Rapid Detection Of Recurrent Non-Muscle Invasive Bladder Cancer In Urine Using Atr-Ftir Technology, Abdullah I. El-Falouji, Dalia M. Sabri, Naira M. Lofti, Doaa M. Medany, Samar A. Mohamed, Mai Alaa-Eldin, Amr Mounir Selim, Asmaa A. El Leithy, Haitham F. Kalil, Ahmed El-Tobgy, Ahmed Mohamed Dec 2022

Rapid Detection Of Recurrent Non-Muscle Invasive Bladder Cancer In Urine Using Atr-Ftir Technology, Abdullah I. El-Falouji, Dalia M. Sabri, Naira M. Lofti, Doaa M. Medany, Samar A. Mohamed, Mai Alaa-Eldin, Amr Mounir Selim, Asmaa A. El Leithy, Haitham F. Kalil, Ahmed El-Tobgy, Ahmed Mohamed

Chemistry Faculty Publications

Non-muscle Invasive Bladder Cancer (NMIBC) accounts for 80% of all bladder cancers. Although it is mostly low-grade tumors, its high recurrence rate necessitates three-times-monthly follow-ups and cystoscopy examinations to detect and prevent its progression. A rapid liquid biopsy-based assay is needed to improve detection and reduce complications from invasive cystoscopy. Here, we present a rapid spectroscopic method to detect the recurrence of NMIBC in urine. Urine samples from previously-diagnosed NMIBC patients (n = 62) were collected during their follow-up visits before cystoscopy examination. Cystoscopy results were recorded (41 cancer-free and 21 recurrence) and attenuated total refraction Fourier transform infrared (ATR-FTIR) …


Vascular Endothelial Growth Factor And The Risk Of Venous Thromboembolism: A Genetic Correlation And Two-Sample Mendelian Randomization Study, Qiaoyun Zhang, Xiaoyu Zhang, Jie Zhang, Biyan Wang, Qiuyue Tian, Xiaoni Meng, Jinxia Zhang, Mengyang Jiang, Yiqiang Zhang, Deqiang Zheng, Lijuan Wu, Wei Wang, Baoguo Wang, Youxin Wang Dec 2022

Vascular Endothelial Growth Factor And The Risk Of Venous Thromboembolism: A Genetic Correlation And Two-Sample Mendelian Randomization Study, Qiaoyun Zhang, Xiaoyu Zhang, Jie Zhang, Biyan Wang, Qiuyue Tian, Xiaoni Meng, Jinxia Zhang, Mengyang Jiang, Yiqiang Zhang, Deqiang Zheng, Lijuan Wu, Wei Wang, Baoguo Wang, Youxin Wang

Research outputs 2022 to 2026

Background: The relationship between vascular endothelial growth factor (VEGF) and the risk of venous thromboembolism (VTE) has always been one of the concerns in the medical field. However, the causal inferences from published observational studies on this issue may be affected by confounders or reverse causality. We performed a two-sample bidirectional Mendelian randomization (MR) to infer the associations between VEGF and VTE. Methods: Summary statistics from genome-wide association studies (GWAS) for VEGF and VTE were obtained from published meta-analysis studies and the FinnGen consortium, respectively. Independent genetic variables significantly associated with exposure were selected as instrumental variables. Linkage disequilibrium score …


Genetic Liability Between Covid-19 And Heart Failure: Evidence From A Bidirectional Mendelian Randomization Study, Huachen Wang, Zheng Guo, Yulu Zheng, Bing Chen Dec 2022

Genetic Liability Between Covid-19 And Heart Failure: Evidence From A Bidirectional Mendelian Randomization Study, Huachen Wang, Zheng Guo, Yulu Zheng, Bing Chen

Research outputs 2022 to 2026

Background: Previous studies have observed inconsistent associations between coronavirus disease 2019 (COVID-19) and heart failure (HF), but these studies were prone to bias based on reverse causality and residual confounding factors. We aimed to investigate genetic liability between COVID-19 and heart failure using a bidirectional Mendelian randomization study. Methods: The causal relationship between COVID-19 (including COVID-19, hospitalized COVID-19 compared with the general population, and severe COVID-19) and HF are determined by using a bidirectional Mendelian randomization analysis. We drew on summary statistics from the largest HF genome-wide association study (GWAS) meta-analysis on individuals of European ancestry, which included 47,309 HF …


Assessment Of A Polygenic Hazard Score For The Onset Of Pre-Clinical Alzheimer’S Disease, Michael Vacher, Vincent Doré, Tenielle Porter, Lidija Milicic, Victor L. Villemagne, Pierrick Bourgeat, Sam C. Burnham, Timothy Cox, Colin L. Masters, Christopher C. Rowe, Jurgen Fripp, James D. Doecke, Simon M. Laws Dec 2022

Assessment Of A Polygenic Hazard Score For The Onset Of Pre-Clinical Alzheimer’S Disease, Michael Vacher, Vincent Doré, Tenielle Porter, Lidija Milicic, Victor L. Villemagne, Pierrick Bourgeat, Sam C. Burnham, Timothy Cox, Colin L. Masters, Christopher C. Rowe, Jurgen Fripp, James D. Doecke, Simon M. Laws

Research outputs 2022 to 2026

Background: With a growing number of loci associated with late-onset (sporadic) Alzheimer’s disease (AD), the polygenic contribution to AD is now well established. The development of polygenic risk score approaches have shown promising results for identifying individuals at higher risk of developing AD, thereby facilitating the development of preventative and therapeutic strategies. A polygenic hazard score (PHS) has been proposed to quantify age-specific genetic risk for AD. In this study, we assessed the predictive power and transferability of this PHS in an independent cohort, to support its clinical utility. Results: Using genotype and imaging data from 780 individuals enrolled in …


Comprehensive Genetic Analysis Of The Human Lipidome Identifies Loci Associated With Lipid Homeostasis With Links To Coronary Artery Disease, Gemma Cadby, Corey Giles, Phillip E. Melton, Kevin Huynh, Natalie A. Mellett, Thy Duong, Anh Nguyen, Michelle Cinel, Alex Smith, Gavriel Olshansky, Tingting Wang, Marta Brozynska, Mike Inouye, Nina S. Mccarthy, Amir Ariff, Joseph Hung, Jennie Hui, John Beilby, Marie Pierre Dubé, Gerald F. Watts, Sonia Shah, Naomi R. Wray, Wei Ling Florence Lim, Pratishtha Chatterjee, Ian Martins, Simon M. Laws, Tenielle Porter, Michael Vacher, Ashley I. Bush, Christopher C. Rowe, Victor L. Villemagne, David Ames, Colin L. Masters, Kevin Taddei, Matthias Arnold, Gabi Kastenmüller, Kwangsik Nho, Andrew J. Saykin, Xianlin Han, Rima Kaddurah-Daouk, Ralph N. Martins, John Blangero, Peter J. Meikle, Eric K. Moses Dec 2022

Comprehensive Genetic Analysis Of The Human Lipidome Identifies Loci Associated With Lipid Homeostasis With Links To Coronary Artery Disease, Gemma Cadby, Corey Giles, Phillip E. Melton, Kevin Huynh, Natalie A. Mellett, Thy Duong, Anh Nguyen, Michelle Cinel, Alex Smith, Gavriel Olshansky, Tingting Wang, Marta Brozynska, Mike Inouye, Nina S. Mccarthy, Amir Ariff, Joseph Hung, Jennie Hui, John Beilby, Marie Pierre Dubé, Gerald F. Watts, Sonia Shah, Naomi R. Wray, Wei Ling Florence Lim, Pratishtha Chatterjee, Ian Martins, Simon M. Laws, Tenielle Porter, Michael Vacher, Ashley I. Bush, Christopher C. Rowe, Victor L. Villemagne, David Ames, Colin L. Masters, Kevin Taddei, Matthias Arnold, Gabi Kastenmüller, Kwangsik Nho, Andrew J. Saykin, Xianlin Han, Rima Kaddurah-Daouk, Ralph N. Martins, John Blangero, Peter J. Meikle, Eric K. Moses

Research outputs 2022 to 2026

We integrated lipidomics and genomics to unravel the genetic architecture of lipid metabolism and identify genetic variants associated with lipid species putatively in the mechanistic pathway for coronary artery disease (CAD). We quantified 596 lipid species in serum from 4,492 individuals from the Busselton Health Study. The discovery GWAS identified 3,361 independent lipid-loci associations, involving 667 genomic regions (479 previously unreported), with validation in two independent cohorts. A meta-analysis revealed an additional 70 independent genomic regions associated with lipid species. We identified 134 lipid endophenotypes for CAD associated with 186 genomic loci. Associations between independent lipid-loci with coronary atherosclerosis were …


A Study Of Heart Disease Diagnosis Using Machine Learning And Data Mining, Intisar Ahmed Dec 2022

A Study Of Heart Disease Diagnosis Using Machine Learning And Data Mining, Intisar Ahmed

Electronic Theses, Projects, and Dissertations

Heart disease is the leading cause of death for people around the world today. Diagnosis for various forms of heart disease can be detected with numerous medical tests, however, predicting heart disease without such tests is very difficult. Machine learning can help process medical big data and provide hidden knowledge which otherwise would not be possible with the naked eye. The aim of this project is to explore how machine learning algorithms can be used in predicting heart disease by building an optimized model. The research questions are; 1) What Machine learning algorithms are used in the diagnosis of heart …


Combined Evaluation Of Arterial Stiffness, Glycemic Control And Hypertension For Macrovascular Complications In Type 2 Diabetes, Zhiyuan Wu, Siqi Yu, Haiping Zhang, Zheng Guo, Yulu Zheng, Zongkai Xu, Zhiwei Li, Xiangtong Liu, Xia Li, Shuo Chen, Jingbo Zhang, Lixin Tao, Xiuhua Guo Dec 2022

Combined Evaluation Of Arterial Stiffness, Glycemic Control And Hypertension For Macrovascular Complications In Type 2 Diabetes, Zhiyuan Wu, Siqi Yu, Haiping Zhang, Zheng Guo, Yulu Zheng, Zongkai Xu, Zhiwei Li, Xiangtong Liu, Xia Li, Shuo Chen, Jingbo Zhang, Lixin Tao, Xiuhua Guo

Research outputs 2022 to 2026

Background: Arterial stiffness, glycemic control and blood pressure are risk factors of macrovascular complications in type 2 diabetes. This study aimed to investigate the combined association of arterial stiffness, glycemic control and hypertension status with the occurrence of diabetic macrovascular complication. Methods: A total of 1870 patients of diabetes were enrolled from Beijing Health Management Cohort between 2008 and 2018 as baseline, and then followed for macrovascular complication onset. We proposed a composite risk score (0 – 4) by arterial stiffness severity, pool glycemic control and hypertension status. Cox model was used to estimate the hazard ratio (HR) and 95 …


The Effects Of A Low Fodmap Diet On People With Irritable Bowel Syndrome: A Literature Review, Emily Stalder Dec 2022

The Effects Of A Low Fodmap Diet On People With Irritable Bowel Syndrome: A Literature Review, Emily Stalder

The Eleanor Mann School of Nursing Undergraduate Honors Theses

Irritable Bowel Syndrome (IBS) is a very common gastrointestinal disorder around the world. There is no known etiology or cure for the disorder, which leaves researchers to develop coping mechanisms for this prevalent issue. A high percentage (10%-15%) of the general population, mostly in Western, industrialized areas, suffer from IBS. A low FODMAP diet (LFD) is something that has been gaining a following over the past 20 years, which has led to research on its ability to minimize symptoms of IBS. The purpose of this literature review is to see what current research has to offer on the LFD’s ability …


Med12 Is A Critical Regulator Of Neural Crest Lineage And Nervous System Myelination, Fatma Betul Aksoy Yasar Dec 2022

Med12 Is A Critical Regulator Of Neural Crest Lineage And Nervous System Myelination, Fatma Betul Aksoy Yasar

Dissertations and Theses (Open Access)

The Mediator complex (MED) is a multi-subunit protein complex integral to the eukaryotic transcription machinery. MED12 is a Cdk8- regulatory kinase module subunit directly implicated in human disease and is genetically altered in neurological disease and cancer. Numerous attempts at generating an in vivo system to study the role of Med12 failed due to embryonic lethality associated with germline or developmental disruption of Med12 gene. To understand the cellular and molecular processes associated with its role in disease, we generated multiple mouse models with targeted depletion of MED12 in distinct cellular lineages. Our genetically engineered models with induced and conditional …


Mediterranean-Style Diet And Exercise Improve Parameters For Management And Prevention Of Type 2 Diabetes Mellitus, Stefani Ann Derrick Dec 2022

Mediterranean-Style Diet And Exercise Improve Parameters For Management And Prevention Of Type 2 Diabetes Mellitus, Stefani Ann Derrick

Master's Theses

Type 2 diabetes mellitus (T2DM) is a chronic condition recognized as the inability to maintain glucose homeostasis, typically presenting with insulin resistance and systemic inflammation. With the prevalence of T2DM and major risk factors such as prediabetes and obesity increasing each year, there is a crucial need to identify strategies for the management and prevention of this condition. Addressing lifestyle-related risk factors through consumption of a well-balanced, nutritious diet and maintaining regular moderate- to high-intensity physical activity may provide a strategy for improving glycemic control, improving metrics of body composition, and decreasing the inflammatory response associated with metabolic dysregulation. Twenty-two …


Infrastructure Development For Personalized Risk Prediction To Reduce Cardiovascular Disease In Childhood Cancer Survivors, Suman Shrestha Dec 2022

Infrastructure Development For Personalized Risk Prediction To Reduce Cardiovascular Disease In Childhood Cancer Survivors, Suman Shrestha

Dissertations and Theses (Open Access)

Although childhood cancer survivors have lengthy life expectancies, they run the risk of experiencing long-term health issues as a result of their treatment. The most frequent non-cancerous cause of morbidity and mortality for these survivors is cardiac disease. Radiation therapy (RT) has been linked in numerous cohort studies to a higher chance of developing a late cardiac disease in these survivors, and this risk rises with higher mean heart doses and increased RT exposure to larger cardiac volumes. Since, the heart is a heterogeneous organ made up of several distinct substructures, RT dose received by the entire heart does not …


Risk-Factor Induced Changes In The Breast Microenvironment Facilitate Inflammatory Breast Cancer Progression And Lymphovascular Invasion, Wintana Balema, Wintana Balema Dec 2022

Risk-Factor Induced Changes In The Breast Microenvironment Facilitate Inflammatory Breast Cancer Progression And Lymphovascular Invasion, Wintana Balema, Wintana Balema

Dissertations and Theses (Open Access)

Inflammatory breast cancer (IBC) is a rapidly progressing, rare and highly lethal form of breast cancer. IBC is a clinical diagnosis, requiring >1/3 involvement on the affected breast and/or skin by erythema, and disease onset of < 6 months. The clinical symptoms of IBC vary in severity and presentation, these include redness, warmth, skin thickening and bruised or pink/purple discoloration appearance and skin changes such as peau d’orange. These skin symptoms are not attributed to inflammation, rather IBC is characterized by florid lymphovascular tumor emboli clogging dermal lymphatics. This leads to “classic” symptoms of breast swelling and skin edema or discoloration. To date, unique genomic drivers which differentiate IBC from non-IBC invasive breast cancers have not been identified highlighting a role for the microenvironment. Several epidemiological studies have unveiled subtype-specific risk factors associated with IBC that are known to alter the microenvironment. Obesity is an established risk factor for all subtypes of IBC. Never-breastfeeding increases risk for developing the most aggressive, triple-negative IBC. Further, never breastfeeding is associated with later clinical stage and worse outcomes. We worked to model these overlapping risk factors to understand microenvironment changes that may lead to the lymphatic change’s indicative of IBC.

First, we investigated the association of a “classic” triad of clinical IBC signs with overall survival among patients to demonstrate the most overt clinical findings of lymphatic involvement were impacting prognosis. We evaluated a triad of IBC signs, including swollen involved breast, nipple change, and diffuse skin change, using breast medical photographs from patients enrolled on a prospective IBC registry. We reported that the …


Ankyrin Dependent Mitochondrial Function And Bioenergetics In The Heart, Janani Subramaniam, Janani Subramaniam Dec 2022

Ankyrin Dependent Mitochondrial Function And Bioenergetics In The Heart, Janani Subramaniam, Janani Subramaniam

Dissertations and Theses (Open Access)

ANK2 mutations in patients are associated with numerous arrhythmias, cardiomyopathies, and other heart defects. In the heart, AnkB, the protein encoded by ANK2, clusters relevant ion channels and cell adhesion molecules in several important domains; however, its role at Mitochondria Associated ER/SR Membranes (MAMs) has yet to be investigated. MAMs are crucial to mitochondrial function and metabolism and are signaling hubs implicated in various cardiac pathologies. Among several functions, these sites mediate the direct transfer of calcium from the ER/SR to the mitochondria to modulate ATP synthesis. Given that mitochondrial function and energy production are paramount to cardiovascular heath, …


Data-Driven Biomarker Panel Discovery In Ovarian Cancer Using Heterogenous Data Fusion On Exosomal And Non-Exosomal Microrna Expression Data, Paritra Mandal Dec 2022

Data-Driven Biomarker Panel Discovery In Ovarian Cancer Using Heterogenous Data Fusion On Exosomal And Non-Exosomal Microrna Expression Data, Paritra Mandal

All Dissertations

Ovarian cancer (OC) is an aggressive gynecological cancer and is currently the 5th leading cause of deaths due to cancer in women. High mortality rates are attributable to the vague pathogenesis and asymptomatic nature of the early stages. The development of a liquid biopsy for routine OC screening could help identify the disease at an earlier stage, making treatments more likely to be effective thereby increasing survival rates. Exosomes, small (~100nm) extracellular vesicles present in body fluids, have been shown to contain cancer-progression, onset, and related factors, making them good candidates for use in liquid biopsies. However, to date, only …


Highly Adherent Antimicrobial Coatings For Orthopedic Implants, Mikhail Bredikhin Dec 2022

Highly Adherent Antimicrobial Coatings For Orthopedic Implants, Mikhail Bredikhin

All Dissertations

Fracture-related infections (FRIs) are the most devasting sort of complications associated with fracture fixation devices, as they lead to patients’ morbidity, prolonged hospitalization, amputations, and even death.External fixators additionally suffer from pin site infections (PSIs), which initiate at the skin entry points of the skin-metallic pin interface present in the external fixation of the damaged bones, often causing deep tissue infection and osteomyelitis. Small percutaneous pins, commonly known as Kirschner wires (K-wires), are used to treat complex fractures and deformities.They are drilled inside the diseased bone for the healing period and are left protruding outside the skin for fixation adjustments …


Cost Utility Of Supporting Family-Based Care To Prevent Hiv And Deaths Among Orphaned And Separated Children In East Africa: A Markov Model–Based Simulation, Marta Wilson-Barthes, Paula Braitstein, Allison Delong, David Ayuku, Lukoye Atwoli, Edwin Sang, Omar Galárraga Dec 2022

Cost Utility Of Supporting Family-Based Care To Prevent Hiv And Deaths Among Orphaned And Separated Children In East Africa: A Markov Model–Based Simulation, Marta Wilson-Barthes, Paula Braitstein, Allison Delong, David Ayuku, Lukoye Atwoli, Edwin Sang, Omar Galárraga

Internal Medicine, East Africa

Purpose: Strengthening family-based care is a key policy response to the more than 15 million orphaned and separated children who have lost 1 or both parents in sub-Saharan Africa. This analysis estimated the cost-effectiveness of family-based care environments for preventing HIV and death in this population.

Design: We developed a time-homogeneous Markov model to simulate the incremental cost per disability-adjusted life year (DALY) averted by supporting family-based environments caring for orphaned and separated children in western Kenya. Model parameters were based on data from the longitudinal OSCAR’s Health and Well-Being Project and published literature. We used a societal perspective, …


Seeing The Big Picture: System Architecture Trends In Endoscopy And Led-Based Hyperspectral Subsystem Intergration, Craig M. Browning Dec 2022

Seeing The Big Picture: System Architecture Trends In Endoscopy And Led-Based Hyperspectral Subsystem Intergration, Craig M. Browning

Graduate Theses and Dissertations (2019 - present)

Early-stage colorectal lesions remain difficult to detect. Early development of neoplasia tends to be small (less than 10 mm) and flat and difficult to distinguish from surrounding mucosa. Additionally, optical diagnosis of neoplasia as benign or malignant is problematic. Low rates of detection of these lesions allow for continued growth in the colorectum and increased risk of cancer formation. Therefore, it is crucial to detect neoplasia and other non-neoplastic lesions to determine risk and guide future treatment. Technology for detection needs to enhance contrast of subtle tissue differences in the colorectum and track multiple biomarkers simultaneously. This work implements one …


Exploring Risk Factors Of Alzheimer’S Disease Using Mouse Models, Xian Han Dec 2022

Exploring Risk Factors Of Alzheimer’S Disease Using Mouse Models, Xian Han

Theses and Dissertations (ETD)

Mouse models of Alzheimer’s disease (AD) that accurately recapitulate pathology and molecular changes are crucial for understanding disease mechanisms and subsequent therapeutic development. We examined five commonly used mouse models of AD (5xFAD, J20, APPNL-F, APPNL-G-F, Tau P301S) and compared their whole- and phosphoproteomes with human AD (the integration of three published datasets) to study whether they can mimic protein/RNA expression discrepancies, molecular changes, and enriched pathways found in human AD cases. The mouse models especially 5xFAD and APPNL-G-F show proteomic signatures similar to human AD but lack human-specific AD progressions, such as dysregulation of synaptic pathways and networks. Integration …


The Uncertainty And Psychological Health Of Family Caregivers Of Patients With Delirium In Intensive Care Units, Amal Shokri Haji Assa Dec 2022

The Uncertainty And Psychological Health Of Family Caregivers Of Patients With Delirium In Intensive Care Units, Amal Shokri Haji Assa

Theses and Dissertations (ETD)

Each year, more than 5 million patients are admitted to an intensive care unit (ICU) in the United States, and up to 80 % of these patients develop delirium. Delirium is a common indicator of acute brain dysfunction in the ICU and a predictor of mortality, longer ICU/hospital stay, and long-term cognitive impairment. Family caregivers are a valuable resource in preventing, detecting, and managing delirium in the ICU. However, witnessing delirium episodes can generate adverse psychological symptoms in family caregivers that may compromise their health and well-being. Research in this area has demonstrated a gap in the literature regarding how …


Methods Development In Inflammatory Bowel Disease, Andrew B. Steimke Dec 2022

Methods Development In Inflammatory Bowel Disease, Andrew B. Steimke

Theses and Dissertations (ETD)

Inflammatory bowel disease (IBD) is a disease that is classified into two subtypes: ulcerative colitis (UC) and Crohn’s disease (CD). Symptoms can range from mild discomfort to requiring surgical intervention and affects approximately 1-in-200 adults in America alone, with global incidence rates increasing. While many treatments exist for IBD, perhaps the main reason for the lack of a cure is that there are many different pathogeneses that all lead to a very similar expression of symptoms. Over 240 IBD loci have been identified to date, yet the causative allele that drives the association has only been identified in ~60 of …