Medicine and Health Sciences Commons^™

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 …

Metabolic Alterations And Cardiovascular Risk After Hepatitis C Cure In Subjects With Or At Risk For Hiv, Christophe Maxime Fokoua Dongmo

Legacy Theses & Dissertations (2009 - 2024)

Background. Hepatitis C virus (HCV) infection engenders substantial metabolic changes. These changes are altered when the virus is cleared after successful treatment. We measured these metabolic alterations that occur after HCV cure; further, we assessed whether these alterations differed in subgroups defined by patients’ characteristics.

Hiv And Early Life Stress On Neuroimaging And Risky Behavior, Paola Garcia Egan

Dissertations

This study examined the interactive effects of early life stress (ELS) and HIV on brain morphometry, diffusion-basis-spectrum-imaging (DBSI), risky decision-making, and sex-risk behavior. 122 people with HIV (PWH) and 113 people without HIV (PWoH), free of major psychiatric illness and neurological confounds, were stratified into high (≥ 3 events) vs. low (< 3 events) ELS [PWoH/low ELS (n = 57), PWoH/high ELS (n =56), PWH/low ELS (n = 43), PWH/high ELS (n = 79)] and underwent structural magnetic resonance imaging, DBSI, neuropsychological, and risky-behavior assessment; all PWH were virologically controlled. Compared to PWoH, PWH had smaller orbitofrontal cortex (OFC), parietal lobes, insula, caudate and anterior cingulate. No ELS effects were detected in volumetric measures. Significant interactions were found between HIV serostatus and ELS on the OFC and on cellularity of the inferior fronto-occipital fasciculus after multiple comparisons adjustment. Specifically, PWH/high ELS exhibited significantly smaller OFC and PWoH/high ELS show significantly larger OFC than the other groups. PWoH/high ELS exhibited higher DBSI cellularity (neuroinflammation proxy) of the inferior-occipital-fasciculus compared to PWoH/high ELS. Regardless of HIV status, executive function moderated the relationship between the OFC and sex-risk behavior such that individuals within the sample who performed above average on a measure of executive function and had a larger OFC reported fewer sex partners in past six months than individuals with smaller volumes. No interaction was found between HIV serostatus and ELS on risky behavior measures. Clustering analyses defined ELS subgroups in PWH that were determined by demographic characteristics, duration of infection, recent CD4+ T-cell count, nadir CD4+ T-cell count and high/low ELS.Even in PWH that are virologically controlled, without major current psychiatric comorbidities, there is evidence of a synergistic impact of ELS and HIV on OFC volumes. Higher volumes in the OFC were detrimental when associated with lower executive function scores or advantageous when associated with higher executive function. Findings suggest that ELS is associated with different brain signatures among PWoH and virally suppressed PWH. However, ELS was not directly associated with risky behaviors, and subgroups in PWH were characterized by demographic variables, past substance use and HIV clinical variables.

Optimizing Antiretroviral Therapy With Modern Rifapentine Containing Tb Treatment, Anthony T. Podany

Theses & Dissertations

In the past decade there has been a multitude of phase 3 clinical trials targeting treatment shortening for tuberculosis (TB). The synthetic rifamycin derivative rifapentine (RPT) has been at the forefront of many of the treatment shortening approaches. RPT possesses greater potency and a longer pharmacokinetic (PK) half-life (t_1/2) as compared with the long used rifamycin, rifampin (RIF). For TB preventative treatment, a 3-month, once weekly regimen of RPT and isoniazid (INH; 3HP) was shown to be as effective as 9-months of daily INH therapy in the PREVENT TB trial. Similarly, a 4-week course of daily RPT and …

Hiv-Related Stigma, Sexual And Gender Minority-Related Stigma, And Health Outcomes Among Msm Living With Hiv: Measurement, Impact, And Intersectionality, Tianyue Mi

Theses and Dissertations

Background: Many men who have sex with men (MSM) living with human immunodeficiency virus (HIV) experience suboptimal health outcomes compared to nonMSM males living with HIV, including a faster decline in CD4 count before initiating antiretroviral therapy (ART), slower immune recovery after initiating ART, more mental health problems, suboptimal ART adherence, and lower retention in care. MSM living with HIV are often exposed to multiple layered stigmas, including, but not limited to, stigma related to being infected with HIV and stigma related to sexual and gender minority (SGM) status. Although various scales of HIV-related stigma have been frequently used for …

The Global Implementation Of Dolutegravir For Hiv Treatment, Matthew L. Romo

Dissertations and Theses

Background
Dolutegravir, an integrase strand transfer inhibitor, is now recommended by international guidelines as part of preferred antiretroviral therapy (ART) regimens for people living with HIV. In low- and middle-income countries (LMICs), HIV treatment programs are transitioning from non-nucleoside reverse transcriptase inhibitors (NNRTIs) to dolutegravir because of its superior efficacy and tolerability, and high genetic barrier to HIV drug resistance. Along with the optimism surrounding widespread dolutegravir use, key questions regarding its implementation have emerged. In this dissertation, I sought to achieve the following specific aims: Aim 1: Characterize dolutegravir uptake in LMICs and identify potential disparities related to sex …

Isolation And Characterization Of Α-Hcd7 Scfv Expressing Exosomes And Synthesis Of Hybrid Exosome-Liposome For Analyses, Sahil Patel

Biotechnology Theses

The goal of this thesis project is to isolate and characterize exosomes that express anti-human CD7 (α-hCD7) single chain variable fragment (scFv), which will be further utilized for T celltargeted gene editing. To reach this goal, exosomes from HEK 293 cells and Jurkat cells were isolated and characterized with different methodologies. To obtain α-hCD7 scFv-expressing exosomes, the HEK 293 cells were subjected to transfection of custom-plasmid pDisplay-αhCD7 scFv, and the expression of α-hCD7 scFv on the HEK 293-derived exosomes were then confirmed by immunogold staining, western blotting, and flow cytometry. To transfect 293 cells, calcium phosphate transfection was utilized, and …

Gut Commensals Modulate Siv/Shiv Pathogenesis And Therapeutics, Samuel Johnson

Theses & Dissertations

Despite significant advancements in combination antiretroviral therapy (cART), ongoing inflammation in the brain and gut remain two of the most significant hurdles in the health of people living with human immunodeficiency virus (HIV). Additionally, a viral reservoir in each compartment inhibits cure efforts by allowing rapid viral rebound following cART interruption. Emerging understanding of the gut-brain axis (GBA) implicates each compartment in the modulation of the other in a complex bi-directional interaction mediated by vagus innervation, circulating lymphocytes, and microbiome composition and biproducts. Using multiple models of the simian (and simian-human) immunodeficiency virus (SIV/SHIV) and therapeutic intervention, I present how …

Implementation Of Prep Protocol In Primary Care, Myia Harper, Catalina West

Doctor of Nursing Practice Projects

Human immunodeficiency virus (HIV) is an incurable condition that continues to be a public health threat. Approximately 38 million people live with the disease worldwide, and one out of seven are unaware they have the disease. Pre-exposure prophylaxis (PrEP) is a medication that can be prescribed to individuals at risk of acquiring HIV. PrEP can be prescribed by any healthcare provider who deems a patient at risk for HIV. However, a primary care practice in central Illinois previously had no protocol for initiation of PrEP. This quality improvement (QI) project aimed to implement a PrEP protocol in the department of …

Use Of Mobile Phones For Hiv Prevention And Testing Information Needs By Emerging Adult Male Population In Rural Kenya. A Qualitative Study, Augustine Boswony Kiplagat

Theses and Dissertations

Human Immunodeficiency virus (HIV) and Acquired Immunodeficiency disease syndrome (AIDS) among young people in Sub-Saharan Africa (SSA) is a serious public health issue which needs urgent cost-effective interventions locally, regionally, and internationally. HIV and AIDS is currently the leading cause of death among young people in SSA, calling for strategic HIV prevention approaches applicable to emerging adults. While most studies have focused on young women, studies focusing on emerging male adults are lacking. The purpose of this dissertation study was to develop an in-depth understanding of the needs, barriers, and facilitators of using mobile phone to access HIV prevention and …

Long Term Outcomes Of Anti-Retroviral Treatment Vs. Additional Nutritional Supplementation For Hiv Patients, Michael P. Gillispie

Physician Assistant Scholarly Project Papers

The purpose of this systematic literature review is not to determine the best treatment for human immunodeficiency virus HIV but to analyze additional supplementation that can prolong the progression of the disease process. Zinc, vitamin A, D, and E will be evaluated additionally with the antiretroviral treatment ART. The cost of an ART Regimen can be very expensive and challenging for patients to afford. The goal is to find an acceptable option to complement ART with a sensible cost to prolong disease progression and minimize additional costs of health care. With the advances of ART, more and more patients can …

The Need For Specialized Substance Abuse Treatment For Gay Men In The United States, Sarah Nance

Health, Human Performance and Recreation Undergraduate Honors Theses

Substance misuse and abuse is a global public health issue that affects sexual minority populations at a higher rate than the heterosexual population. Many popular gay socialization strategies include gay bars and chemsex, or sexualized drug use, in which substance use is common in both. The Minority Stress Model provides an explanation as to how stigma embedded in a society and within a person can act as a stressor and manifest into a substance abuse disorder. This stigma acts for many as a barrier to seeking healthcare out of fear of discrimination, causing many to hide their identity when seeking …

Hiv And The African American Church: Millennial Faith Leader's Perspectives., Kelsey Leann Burton

Electronic Theses and Dissertations

African Americans are disproportionately impacted by HIV compared to other racial groups. Stigma surrounding HIV has created challenges for effective HIV prevention and stigma reduction programs. The African American church has been criticized for its slow and stigmatizing response to the HIV epidemic. Despite this, African American faith leaders play significant roles in guiding the perspective of the community. Numerous studies examine African American pastors’, faith leaders’, and ministers’ perspective about HIV and other HIV-related topics. However, there is no research that specifically examines young African American pastors’ perspectives of addressing HIV, stigma, and prevention. The purpose of this dissertation …

Ameliorative Effects Of Minor Cannabinoids Over Hiv-1 Tat-Mediated Visceral Pain, Charlie Worth

Honors Theses

As the total number of people living with HIV continues to rise across the world, an effective HIV treatment is still sought after. While modern-day advanced therapies exist for mitigating much of the negative effects of HIV, the virus remains evasive and problematic in the central nervous system. Thus, even with treatment, many people living with HIV continue to suffer from a plethora of symptoms. However, a large proportion of HIV-positive patients claim to feel a reduction in those persevering symptoms after cannabis usage. This anecdotal evidence has sparked interest in the efficacy of cannabis constituents for HIV therapy. This …

Emerging Viral Diseases: Generation Z'S Outlook, Ian Mcwhorter

Honors Projects

Generation Z differs notably from previous generations like Baby Boomers or Generation X. In recent years, young adults have been persisting through the COVID-19 pandemic, though not unscathed. This paper seeks to answer the following question: How does Generation Z differ in its outlook on Viral diseases compared to previous generations? Using a series of three surveys conducted on three seperate Viral diseases (HIV, Zika, and COVID 19), it was found that while Generation Z has improved in its ability to combat Viral outbreaks due to factors like high digital literacy, other factors such as poorer mental health show that …

Determinants Of Hiv Treatment Disparities In The Latino Population Of South Carolina, Elizabeth G. Caulk

Senior Theses

The Latino population in the United States faces a heightened risk in terms of contracting HIV/AIDS and experiencing negative health outcomes from said infection. HIV/AIDS continues to disproportionately impact ethnic/racial minorities, and the Latino population exemplifies this unfortunate trend, with Latino Americans making up around 18.4% of the national population, but nearly 30% of the HIV/AIDS infections (US Office of Minority Health, 2021). More enduring changes to the current resources available to this population will need to be made in order to address this disparity. Thus, the current study examined social determinants, how they increase risk of infection, and how …

Decision-Analytic Models Using Reinforcement Learning To Inform Dynamic Sequential Decisions In Public Policy, Seyedeh Nazanin Khatami

Doctoral Dissertations

We developed decision-analytic models specifically suited for long-term sequential decision-making in the context of large-scale dynamic stochastic systems, focusing on public policy investment decisions. We found that while machine learning and artificial intelligence algorithms provide the most suitable frameworks for such analyses, multiple challenges arise in its successful adaptation. We address three specific challenges in two public sectors, public health and climate policy, through the following three essays. In Essay I, we developed a reinforcement learning (RL) model to identify optimal sequence of testing and retention-in-care interventions to inform the national strategic plan “Ending the HIV Epidemic in the US”. …

Relationship Dynamics, Sexual Practices, And Hiv Risk Of Black Behaviorally Bisexual Women, Dajaneil S. Mccree

Walden Dissertations and Doctoral Studies

The human immunodeficiency virus (HIV) risk that exists among women who have sex with women and men (WSWM) is influenced by behavioral factors related to condom use and penetrative sex with sex toys and body parts. Although women represent a large percentage in HIV diagnoses, research has lacked in determining the sexual behaviors that exist behind health-related risks of young women who have sex with women (WSW) and HIV. This study fills the gap in literature in HIV prevention and testing interventions for WSWM by representing Black young adult WSWM in behavioral research, identifying how their lived experiences in relationships …

Adverse Childhood Experiences And Hiv Risk Behaviors Among Transgender Populations, Linda Baggio

Walden Dissertations and Doctoral Studies

Adverse childhood experiences (ACEs) have a negative impact on health and have created a social challenge in managing HIV risk behavior in the transgender population. The aim of this study was to determine the association between ACEs and HIV risk behavior among the transgender population and identify the association between ACE score (1, 2, 3, 4, or more) and HIV risk behavior among the transgender population. This involved a quantitative methodology using a Behavioral Risk Factor Surveillance System (BRFSS) questionnaire to obtain data from 323 transgender participants. Multivariable regression analyses were conducted to determine the association between ACEs and HIV …

Effects Of Perpetrator Types And Gender-Based Violence On Condom Use Among Tanzanian Female Sex Workers, Lashonda Hall

Walden Dissertations and Doctoral Studies

HIV status among female sex workers (FSWs) continues to be a significant public health concern. Condom use is associated with HIV cases among FSWs. Gender-based violence (GBV) plays a role in FSWs HIV status. While studies have investigated the relationship between GBV and condom use, little is known about the impact of factors such as perpetrator type and substance use. I aimed to examine whether perpetrator type and substance use affect the relationship between GBV and condom use among FSWs in Tanzania. Secondary data analysis was performed on 1,502 FSWs extracted from the 2020 Tanzanian, John Hopkins Program for International …

Determining The Impact Of Immune Dysregulation On Cd4 T Cell Responses To Hiv-1 And Sars-Cov-2, Jacob K. Files

All ETDs from UAB

CD4+ T cells, often referred to as helper T cells, play a crucial role in the formation of antiviral immune responses following infection and vaccination. However, this can be disrupted by various forms of immune dysregulation. Many groups have described how HIV-1 adaptation and immune escape can lead to dysregulated HIV-specific immune responses. Our lab has previously shown that predicted HLA-II associated HIV-1 adaptation leads to dysregulated, poorly immunogenic CD4+ T cell responses in HIV-1 infection. Here, we focus on the impact of this HLA-II associated viral adaptation in the setting of HIV-1 vaccination. We show that HLA-II associated, vaccine-matched …

Queer Survival Amidst Hiv/Aids, Covid-19 And Homelessness, Julia Young

Pitzer Senior Theses

The treatment and survival of a society's marginalized peoples reveal the true impacts of a pandemic. An analysis of homeless queer youth during the HIV/AIDS and SARS-CoV-2 crises lays bare the systemic failure of the United States government to provide equitable healthcare.

I compare the HIV/AIDS and COVID-19 pandemics in queer homeless youth to demonstrate the dangers of disease moralization via a sociocultural analyses of disease stigma and responsibility politics. Utilizing syndemic theory I draw on the synergistic relationship between disease and illness to describe the unique challenges queer homeless youth face. A syndemic framework is applied to address common …

Utilizing A Video-Based Intervention To Improve Medicine Adherence And Retention Of Hiv Care In A Hiv Clinic., Robert Currie

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Memphis, Tennessee has higher rates of black men who have sex with men living with human immunodeficiency (BMSMLWH) compared to state and national levels. ART has been shown to be effective in keeping people living with HIV virally suppressed and unable to transmit HIV through sex. However, BMSMLWH are disproportionately affected by HIV than other races in Memphis, Tennesee. The proposed program relies on evidence-based data that demonstrates the effectiveness of video-based intervention in improving medication adherence and HIV retention of care. Taking Care of Me is a video-based intervention that promotes HIV treatment initiation, ART adherence, and retention in …