Investigative Techniques Commons^™

Targeting The Dorsolateral Prefrontal Cortex With Transcranial Direct Current Stimulation To Improve Depression And Anxiety In Parkinson's Disease, Brock Renicks

Honors Theses

The aim of this study is to observe the outcomes of transcranial direct current stimulation (tDCS) as a treatment for Parkinson’s Disease (PD). This study will primarily look at changes in depression and anxiety, as these symptoms are often comorbid with Parkinson’s Disease. Transcranial direct current stimulation is a non-invasive, very low-intensity form of electrical stimulation of the brain. It is being increasingly used as a form of treatment for Parkinson’s Disease and depression and anxiety, however the literature is ambiguous, showing mixed results throughout various studies, with no standardization of tDCS administration. To determine the effect of tDCS on …

Comparative Investigation Of Bacterial Adhesion On Medical Device Thermoplastics, Dev V. Mehta

Honors Theses

This project will focus on determining if differences in bacterial cell wall composition influences adhesiveness to thermoplastic materials used to construct patient orthotic splints. Bacteria with decreased adhesion are unable to remain bonded to orthotic splints, increasing its ability to transfer to a patient’s wound, leading to an infection. Antibiotic resistant bacteria used in this investigation included gram-positive cocci vancomycin-resistant (VRE) Enterococcus faecalis, methicillin-resistant Staphylococcus aureus (MRSA), and gram-negative rods extended-spectrum beta-lactamase (ESBL) Escherichia coli and Pseudomonas aeruginosa. Each test bacterium is a major pathogen causing healthcare-associated infections (HAIs). Saline, artificial perspiration, and ascites fluids were used to determine the …

Determinants Of Hypertension Awareness And Control In Kenya: A Secondary Analysis Of National Survey Data, Alexander K. Davis

Honors Theses

In low- and middle-income countries (LMICs), cardiovascular diseases (CVDs) are prevalent and pose a major concern as the current healthcare systems are oriented primarily towards communicable diseases. The largest contributor to CVDs, hypertension, is a significant issue in Kenya, a model LMIC. Based on previous studies in this lab, high rates of hypertension are present in the region of Kasigau, Kenya. Kasigau is a small region within Taita-Taveta County, Kenya. Traditional risk factors are not necessarily predictive of hypertension in all regions of Kenya. This study aims to address the lack of tested risk factors for hypertension in Kenya and …

Spectral Characterization Of Colorectal Cancer Using Excitation-Scanning Hyperspectral Imaging, Natalie Hadad

Honors Theses

Colorectal cancer is one of the most common and deadly cancers worldwide, with a lifetime risk of approximately one in twenty-three for men and one in twenty-five for women. Although early detection significantly improves survival, current diagnostic approaches such as tissue biopsy are invasive, reliant on subjective interpretation, have extended turnaround times, and risk missing flat or depressed lesions that are more difficult to detect than raised polyps. These limitations highlight the need for objective, minimally invasive technologies capable of detecting early tissue changes. This study investigates excitation-scanning hyperspectral imaging (Ex-HSI) as a label-free optical approach for identifying colorectal cancer–associated …

Novel Biomarker Discovery In Multiple Sclerosis, Manisha Gangasani

Honors Theses

Multiple Sclerosis (MS) is a chronic neuroinflammatory disorder affecting the brain, spinal cord, and optic nerve. Patients experience cognitive, motor, autonomic, and emotional symptoms that often overlap with other neurological conditions, making early diagnosis challenging. Current diagnostic criteria require evidence of lesions with dissemination in time and space. Racial disparities in MS outcomes are well documented, with Black individuals often exhibiting greater disease severity, higher relapse rates, and increased disability compared to White individuals. These differences likely reflect a combination of genetic, biological, environmental, and healthcare access factors, underscoring the need to improve early diagnosis and reduce inequities in care. …

Developing A Protocol For Non-Cellular Transplantation Of Donor Mitochondria Into Recipient Cells, Andrew Parton

Honors Theses

Tumor innervation has emerged as a critical feature of cancer progression, with increased nerve density correlating with enhanced aggressiveness, metastatic dissemination, and poor clinical outcome. However, the functional contribution of neurons to tumor biology remains incompletely defined. We recently identified the intercellular transfer of mitochondria from neurons to cancer cells as a mechanism that promotes tumor progression. We therefore hypothesized that disruption of this transfer could attenuate tumor aggressivity. To directly investigate this process, we developed an approach to isolate mitochondria from donor cells and transplant them into recipient cancer cells independently of canonical cell-cell interactions. Transferred mitochondria were tracked …

Detection Of Sars-Cov-2 Nucleocapsid And Spike Antibodies In Serum Of Covid-19 Vaccinated And Infected Patients Utilizing Immunoblot Assay, Suzanna Horn

Honors Theses

In 2020, the world was introduced to COVID-19, a strain of Coronavirus that quickly caused a pandemic at the global scale. COVID-19 was reported to cause 5.94 million deaths between 2020-2021, and it continues to prevail amongst society in 2024. Many methods of preventing COVID-19 infection arose throughout this time period; however, mRNA vaccines against the SARS-CoV-2 spike (S) protein became the most effective way to protect the population from COVID-19’s destructive reign.

Although society has made significant scientific strides in Coronavirus testing and vaccination efforts, there are many improvements that must be made to better protect our society from …

Determining The Effect Of Cuff Deflation On Post-Exercise Arterial Occlusion Pressure, John Benton

Honors Theses

While it is recommended that blood flow restriction be applied relative to pre-exercise arterial occlusion pressure (AOP), no guidelines exist for an initial rest period prior to the measurement. Remeasuring AOP post-exercise can be used to estimate the cardiovascular response. When measuring post-exercise (pre-) AOP, different methods could be used. Some increase the cuff pressure from blood flow restriction exercise pressure (without deflation), or deflate the cuff prior to post-exercise (post-) AOP measurement. It is unknown if pre-AOP is affected by initial rest period, or if post- AOP is affected by cuff deflation. Thus, the purpose of this study was …

Rates And Perceptions Of Covid-19 Vaccination From University Of Mississippi Students, Josie Parham

Honors Theses

The trials, tribulations and triumphs of the global COVID-19 pandemic are impacted by and are a product of behaviors that occur at the level of nations, states, cities and, ultimately, communities. In the wake of the development of safe and effective vaccines against SARS-CoV2, the virus responsible for the pandemic, the significance of the vaccine is closely linked to the number of individuals that receive the vaccine. To date, surveys have measured sizable variations in vaccination rates between nations, states, cities, and communities. Focusing on events that have transpired in one such local community, the present study (i) measured the …