Digital Commons Network^™

Testing Functional Homology Of The Lga2 And Rga2 Genes Of Sporisorium Reilianum In Ustilago Maydis, Joshua Thomas

College of Arts & Sciences Senior Honors Theses

Ustilago maydis, a basidiomycete fungus, infects corn and displays dimorphism, transitioning between nonpathogenic and pathogenic stages. Its life cycle involves mating of haploids with different alleles, resulting in the formation of galls/tumors filled with teliospores. The a1 and a2 alleles regulate pheromone recognition and mating. The lga2 and rga2 genes in the a2 allele are crucial for uniparental mitochondrial inheritance. Sporisorium reilianum, a related fungus, has homologs of lga2 and rga2 with U. maydis. To test the functional homology of the S. reilianum genes, protoplasts of U. maydis strains deleted for lga2 or lga2 and rga2 were transformed …

Investigating Pre-Health Students’ Science Identity And The Factors That Influence Them To Change Programs Or Tracks., Taylor Humphreys

College of Arts & Sciences Senior Honors Theses

Retention is a particularly pressing issue for undergraduate students, specifically those in pre-health programs or tracks. This can be affected by a students’ science identity, which is referred to as viewing oneself as a “science person.” This study focused on investigating science identity and influencing factors that can cause program or track change of pre-health students. Previous studies have investigated these factors regarding pre-health students applying to medical school, but this study opened the investigation to a variety of pre-health students and focused on characterizing students’ experiences prior to their health professional school applications. The analysis of peer-led focus group …

Sdf-1Α Mediates Primary Tumor Escape In Glioblastoma Through Activation Of Mesenchymal Transitions., Charles T. Froman-Glover

College of Arts & Sciences Senior Honors Theses

Glioblastoma (GBM), a highly aggressive primary brain tumor originating in glial cells, poses a significant challenge due to its rapid growth and invasive nature within healthy brain tissue.

Current treatments involve surgical resection, chemotherapy, and radiation. These treatments alone are not enough to cure this disease, and a better understanding the mechanics of the tumor micro-environment is imperative to furthering the field of cancer research. This research focuses on understanding the tumor microenvironment's impact, specifically investigating the role of stromal cell-derived factor 1 (SDF-1) mechanics on GBM aggressiveness. SDF-1 is known to facilitate disease progression by facilitating chemotaxis toward the …

The Anti-Diabetic Drug Metformin Disrupts Feeding And Sleeping Behaviors In Drosophila Melanogaster., Lucas Fitzgerald

College of Arts & Sciences Senior Honors Theses

Dimethylbiguanide, also known as metformin, is the single most prescribed oral treatment for non-insulin dependent diabetes mellitus, or type 2 diabetes, in Western countries. The primary mechanism of action that metformin acts through is the activation of AMP kinase, an important regulator of energy homeostasis. While the anti-diabetic effects of metformin are well documented, its effects on feeding and sleeping behaviors are not well characterized. Using the model organism Drosophila melanogaster, the mean daily quantity of food consumed was measured and compared between groups treated with several dosages of metformin. Feeding interactions such as meal frequency and length were …

"Not That Type Of Asian": Deconstructing The Model Minority Myth From A South Asian Perspective., Shraddha Patel

College of Arts & Sciences Senior Honors Theses

The myth of the model minority is an essential aspect of the literature on Asian American racialization. However, dominant narratives of the concept largely focus on East Asians, with limited literature highlighting its unique impact on South Asians. In light of this, this qualitative study sought to illuminate where South Asian experiences align with, deviate from, or expand upon the themes observed in existing literature. Using interview data from 21 South Asian American participants from across the United States, we explored 1) identity and sense of belonging, 2) mental health as it pertains to expectations associated with the model minority …

Assessing The Role Of Stim1 And Stim2 In Microglial Response To Spinal Cord Injury., Sarayu Alli

College of Arts & Sciences Senior Honors Theses

Microglia, immune cells of the central nervous system, constantly survey their environment for damage. Once damage is detected, they are activated into become reactive, resulting in morphological changes, such as larger cell bodies, and functional changes, such as releasing inflammatory mediators. The switch from surveying to reactive occurs because the microglia received signals that sense danger in the environment. The release of Ca2+ from intracellular stores is involved in store-operated calcium entry (SOCE), a signaling pathway. Recent studies have shown that calcium release from the intracellular stores is a factor of microglial activation. SOCE is specific to monitoring low calcium …

A Revised Synthesis Of The Cationic Lipids Dmri And Mlri, Benjamin A. Kostic

College of Arts & Sciences Senior Honors Theses

Lipid nanoparticles (LNPs) are an increasingly utilized method of intracellular delivery for nucleic acids. The COVID-19 vaccines from Moderna and Pfizer-BioNTech have used LNP technology to combat the recent global SARS-CoV-2 pandemic, saving millions of lives.^1,2 These vaccines consist of a lipid formulation that binds to the anionic phosphate groups of mRNAs and serves as an effective way to transport the nucleic acid across membranes into cells.⁹The mRNA encodes a viral protein. When introduced to cells, the viral protein is produced so that the immune system then can generate an appropriate antibody response.³ However, this approach …

Early Life Experiences As Later Life Predictors For Criminality: Examination Of Public Criminal Records, Juliana S. Bastien

College of Arts & Sciences Senior Honors Theses

Crime's detrimental impact on society, victims, families, and the justice system is undeniable. Thus, identifying factors that contribute to the perpetration of crime is essential to reduce the public health impact of crime. Adverse Childhood Experiences (ACEs) are frequently found in community samples and are consistently associated with physical, psychological, and behavioral consequences. Research suggests that negative childhood experiences contribute to maladaptive behaviors, including delinquency and perpetration of crime later in life (Perez et al., 2018). The present study's purpose is to identify specific childhood experiences associated with criminality. The data presented on criminality and ACEs was collected from recruited …

Analysis And Application Of The Offense-Defense Theory: Russia, Ukraine, And History., Kirby Ballard

College of Arts & Sciences Senior Honors Theses

Political scientists and government advisors have long sought to understand what influences conflicts and how to predict them. Despite constant war, a commonly used empirical theory that can answer this question has not emerged. The majority of theories created are either conflict-specific or not empirically testable. Considering these factors, I sought out a theory that would help me better understand Russia's choice to invade Ukraine in the spring of 2022. I selected the offense-defense theory due to its many attempts to explain territorial conquest, the likeliness of conflict, and overall losses. The main focus of the theory is to explain …

Impact Of Sodium Benzoate And A High Fat Diet On Kidney Of Mice., Anna Lipinski

College of Arts & Sciences Senior Honors Theses

Sodium Benzoate (SB) is a commonly utilized food preservative with potential therapeutic uses for neurological conditions such as Alzheimer’s disease and hepatic encephalopathy. Consumption of SB is generally regarded as safe (GRAS), by the Food and Drug Administration, at amounts of 0.1% by weight of food. However, previous reports indicate that SB exposure may induce histological alterations in kidney structures and promote oxidative stress. Thus, with increasing obesity rates and fatty diets, the effects of SB coupled to a high fat diet (HFD) remain to be determined. This study addressed the hypothesis that SB with a HFD will increase extracellular …

Investigating The Mechanisms Through Which Autophagy Controls Lipid Levels In Cyst Stem Cells., Jared Langdon

College of Arts & Sciences Senior Honors Theses

With an increase in the average age of the American population, incidents of age-related diseases and illnesses are rising across healthcare communities. Addressing these pathologies with a focus towards novel treatments warrants further research into their mechanistic origins. Lipid build up within cells has been correlated with increased risk for certain pathologies, namely Alzheimer's disease and type-2 diabetes (Demarco, 2020). In this study I aimed to investigate the origin of the increase in lipids, specifically we consider the effects of lipid build up on the maintenance of stem cell populations.