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Full-Text Articles in Diseases

A Comparative Analysis Of Hiv/Aids In France And The United States: Historical Context And Preventative Actions, Rebecca A. Liebsack May 2024

A Comparative Analysis Of Hiv/Aids In France And The United States: Historical Context And Preventative Actions, Rebecca A. Liebsack

Honors Theses

The HIV/AIDS pandemic is the result of transmission of a zoonotic disease known as simian immunodeficiency virus. The pandemic has had profound social and economic consequences and continues to be present today. France and the United States’ response to the discovery of HIV will be compared and the impact that HIV/AIDS had on their countries and future responses. They had rather similar responses, however, the United States had a slower initial response compared to France. Both had similar takeaways such as aiming at improving prevention and utilizing tactics developed during the start of the pandemic like frequent testing and vaccines.


Ikaros Expression Drives The Aberrant Metabolic Phenotype Of Macrophages In Chronic Hiv Infection, Cecilia Vittori, Celeste Faia, Dorota Wyczechowska, Amber Trauth, Karlie Plaisance-Bonstaff, Mary Meyaski-Schluter, Krzysztof Reiss, Francesca Peruzzi Jan 2024

Ikaros Expression Drives The Aberrant Metabolic Phenotype Of Macrophages In Chronic Hiv Infection, Cecilia Vittori, Celeste Faia, Dorota Wyczechowska, Amber Trauth, Karlie Plaisance-Bonstaff, Mary Meyaski-Schluter, Krzysztof Reiss, Francesca Peruzzi

School of Medicine Faculty Publications

The increased risk for acquiring secondary illnesses in people living with HIV (PLWH) has been associated with immune dysfunction. We have previously found that circulating monocytes from PLWH display a trained phenotype. Here, we evaluated the metabolic profile of these cells and found increased mitochondrial respiration and glycolysis of monocyte-derived macrophages (MDMs) from PLWH. We additionally found that cART shifted the energy metabolism of MDMs from controls toward increased utilization of mitochondrial respiration. Importantly, both downregulation of IKAROS expression and inhibition of the mTOR pathway reversed the metabolic profile of MDMs from PLWH and cART-treated control-MDMs. Altogether, this study reveals …


A Conceptual Analysis Of Sbirt Implementation Alongside The Continuum Of Prep Awareness: Domains Of Fit And Feasibility., Lesley M. Harris, Kerr C. Jelani, Blake D. Skidmore, Smita Ghare, Andrea Reyes-Vega, Vania Remenik-Zarauz, Harideep Samanapally, Rana U. Anwar, Rishikesh Rijal, Kendall Bryant, Martin T. Hall, Shirish Barve Jan 2024

A Conceptual Analysis Of Sbirt Implementation Alongside The Continuum Of Prep Awareness: Domains Of Fit And Feasibility., Lesley M. Harris, Kerr C. Jelani, Blake D. Skidmore, Smita Ghare, Andrea Reyes-Vega, Vania Remenik-Zarauz, Harideep Samanapally, Rana U. Anwar, Rishikesh Rijal, Kendall Bryant, Martin T. Hall, Shirish Barve

Faculty Scholarship

Screening, Brief Intervention, and Referral to Treatment (SBIRT) is a supplementary intervention that can be incorporated into the Pre-Exposure Prophylaxis (PrEP) Care Continuum, complementing initiatives and endeavors focused on Human Immunodeficiency Virus (HIV) prevention in clinical care and community-based work. Referencing the Transtheoretical Model of Change and the PrEP Awareness Continuum, this conceptual analysis highlights how SBIRT amplifies ongoing HIV prevention initiatives and presents a distinct chance to address identified gaps. SBIRT's mechanisms show promise of fit and feasibility through (a) implementing universal Screening (S), (b) administering a Brief Intervention (BI) grounded in motivational interviewing aimed at assisting individuals in …


Proposing An Rna Interference (Rnai)-Based Treatment For Human Immunodeficiency Virus (Hiv) Infection By Analyzing The Post-Transcriptional Gene Targeting Of Sars-Cov-2, Hepatitis C Virus, And A549 Lung Cancer Cells, Arjun Jagdeesh Jan 2024

Proposing An Rna Interference (Rnai)-Based Treatment For Human Immunodeficiency Virus (Hiv) Infection By Analyzing The Post-Transcriptional Gene Targeting Of Sars-Cov-2, Hepatitis C Virus, And A549 Lung Cancer Cells, Arjun Jagdeesh

AUCTUS: The Journal of Undergraduate Research and Creative Scholarship

Human Immunodeficiency Virus (HIV) is a retrovirus that infects CD4+ T cell lymphocytes in humans, leading to the development of Acquired Immunodeficiency Syndrome (AIDS) if left untreated. While current treatment methods, including antiretroviral combination treatments, effectively limit HIV replication, HIV can evade these treatments due to its high mutation rate. Long-term antiretroviral treatment can also be toxic to patients, meaning patients would benefit from a new mechanism of HIV treatment. RNA interference (RNAi) is an antiviral pathway found in mammals, plants, and insects that involves a small-interfering RNA that is incorporated into a protein complex called the RNA-induced Silencing …


Assessment Of Deficits In Specific Cognitive Domains In Older Adults Living With Hiv., Andrea Reyes-Vega, Harideep Samanapally, Rishikesh Rijal, Stephen P. Furmanek, Christopher B. Shields, Brandon C. Dennis, Smita Ghare, Shirish Barve Dec 2023

Assessment Of Deficits In Specific Cognitive Domains In Older Adults Living With Hiv., Andrea Reyes-Vega, Harideep Samanapally, Rishikesh Rijal, Stephen P. Furmanek, Christopher B. Shields, Brandon C. Dennis, Smita Ghare, Shirish Barve

Faculty Scholarship

A significant proportion of people living with HIV (PLWH) have cognitive impairment. Moreover, approximately 70% of PLWH in the United States will be ≥50 years old by 2030, raising concerns of a higher incidence of dementia as they age. Accordingly, there is a clinical need to monitor their cognitive status. The aim of this study was to delineate specific cognition areas impacted in OALWH with a clinical diagnosis of neurocognitive impairment. We used a comprehensive set of tests (paper and NIH Toolbox Cognition Battery), to assess different cognitive domains in a total of 25 OALWH ≥ 50 years. 64% were …


Individual Difference Correlates Of Being Sexually Unrestricted Yet Declining An Hiv Test, Nicholas S. Holtzman, Stephen W. Carden, Stacy W. Smallwood, Janice Steirn, S. Mason Garrison Sep 2023

Individual Difference Correlates Of Being Sexually Unrestricted Yet Declining An Hiv Test, Nicholas S. Holtzman, Stephen W. Carden, Stacy W. Smallwood, Janice Steirn, S. Mason Garrison

Department of Mathematical Sciences Faculty Publications

Which individual differences accurately predict one’s decision to get tested for human immunodeficiency virus (HIV), and do individuals who have regular short-term sex get tested at higher rates? Two studies—one lab study (total valid N = 69, with n = 20 who were tested) and one involving a student health center (valid N = 250, n = 4 who were tested)—involved participants (total valid N = 319, with n = 24 who got tested) taking a number of personality and individual difference measures, including the dark triad (Machiavellianism, narcissism, and psychopathy). Then, in both studies, participants had the opportunity to …


Comparative Polar And Lipid Plasma Metabolomics Differentiate Kshv Infection And Disease States, Sara R. Privatt, Camila Pereira Braga, Alicia Johnson, Salum J. Lidenge, Luke Berry, John R. Ngowi, Owen Ngalamika, Andrew G. Chapple, Julius Mwaiselage, Charles Wood, John T. West, Jiri Adamec Aug 2023

Comparative Polar And Lipid Plasma Metabolomics Differentiate Kshv Infection And Disease States, Sara R. Privatt, Camila Pereira Braga, Alicia Johnson, Salum J. Lidenge, Luke Berry, John R. Ngowi, Owen Ngalamika, Andrew G. Chapple, Julius Mwaiselage, Charles Wood, John T. West, Jiri Adamec

School of Medicine Faculty Publications

Background: Kaposi sarcoma (KS) is a neoplastic disease etiologically associated with infection by the Kaposi sarcoma-associated herpesvirus (KSHV). KS manifests primarily as cutaneous lesions in individuals due to either age (classical KS), HIV infection (epidemic KS), or tissue rejection preventatives in transplantation (iatrogenic KS) but can also occur in individuals, predominantly in sub-Saharan Africa (SSA), lacking any obvious immune suppression (endemic KS). The high endemicity of KSHV and human immunodeficiency virus-1 (HIV) co-infection in Africa results in KS being one of the top 5 cancers there. As with most viral cancers, infection with KSHV alone is insufficient to induce tumorigenesis. …


Independent Effects Of Hiv And Antiretroviral Therapy On The Oral Microbiome Identified By Multivariate Analyses, Clifford J. Beall, Elizabeth A. Lilly, Carolina Granada, Kelly Treas, Kenneth R. Dubois, Shahr B. Hashmi, Jose A. Vazquez, Michael E. Hagensee, Ann L. Griffen, Eugene J. Leys, Paul L. Fidel Apr 2023

Independent Effects Of Hiv And Antiretroviral Therapy On The Oral Microbiome Identified By Multivariate Analyses, Clifford J. Beall, Elizabeth A. Lilly, Carolina Granada, Kelly Treas, Kenneth R. Dubois, Shahr B. Hashmi, Jose A. Vazquez, Michael E. Hagensee, Ann L. Griffen, Eugene J. Leys, Paul L. Fidel

School of Dentistry Faculty Publications

The oral microbiome is an important predictor of health and disease. We recently reported significant yet modest effects of HIV under highly active antiretroviral therapy (ART) on the oral microbiome (bacterial and fungal) in a large cohort of HIV-positive (HIV+) and matched HIV-negative (HIV-) individuals. As it was unclear whether ART added to or masked further effects of HIV on the oral microbiome, the present study aimed to analyze the effects of HIV and ART independently, which also included HIV- subjects on preexposure prophylaxis (PrEP) therapy. Cross-sectional analyses of the effect of HIV devoid of ART (HIV+ ART- versus matched …


Sars-Cov-2-Specific T Cell And Humoral Immunity In Individuals With And Without Hiv In An African Population: A Prospective Cohort Study, Owen Ngalamika, Salum J. Lidenge, Marie Claire Mukasine, Musonda Kawimbe, Patrick Kamanzi, John R. Ngowi, Julius Mwaiselage, For Yue Tso Feb 2023

Sars-Cov-2-Specific T Cell And Humoral Immunity In Individuals With And Without Hiv In An African Population: A Prospective Cohort Study, Owen Ngalamika, Salum J. Lidenge, Marie Claire Mukasine, Musonda Kawimbe, Patrick Kamanzi, John R. Ngowi, Julius Mwaiselage, For Yue Tso

School of Medicine Faculty Publications

Objectives: To longitudinally compare SARS-CoV-2-specific T cell and humoral immune responses between convalescent individuals who are HIV-positive (HIV+) and HIV-negative (HIV-). Methods: We conducted enzyme-linked immunospots to determine the SARS-CoV-2-specific T cell responses to spike and nucleocapsid, membrane protein, and other open reading frame proteins (NMO), whereas an immunofluorescence assay was used to determine the humoral responses. Participants were sampled at baseline and after 8 weeks of follow-up. Results: Individuals who are HIV- had significantly more T cell responses to NMO and spike than individuals who are HIV+ at baseline, P-value = 0.026 and P-value = 0.029, respectively. At follow-up, …


A Systematic Review To Study The Global Patterns And Policies Of Hiv Harm Reduction Programs And Their Impact Among People Who Inject Drugs, Noura Shaltout, Rania Soliman, Lamia Refaey, Rim Ghazal, Mirna Atteya, Nahla Elmedany Jan 2023

A Systematic Review To Study The Global Patterns And Policies Of Hiv Harm Reduction Programs And Their Impact Among People Who Inject Drugs, Noura Shaltout, Rania Soliman, Lamia Refaey, Rim Ghazal, Mirna Atteya, Nahla Elmedany

Papers, Posters, and Presentations

Aim: This study aims to provide an updated estimate of HIV prevalence among people who inject drugs (PWID) globally, as well as investigate different policies and methods for applying harm reduction. This article focuses on the two major and the most frequently used harm reduction techniques, Syringe-Service Programs (SSPs) and Opioid Agonist Therapy (OAT). Methods: A comprehensive systematic review was undertaken across multiple international databases during the period of (August-December 2021). For studies conducted before 2005, we used data from a previous published systematic review. Thirty-six studies were included, including studies that had performed HIV testing and had a confirmed …


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, …


Dependence On A Variable Residue Limits The Breadth Of An Hiv Mper Neutralizing Antibody, Despite Convergent Evolution With Broadly Neutralizing Antibodies, Cathrine Scheepers, Prudence Kgagudi, Nonkululeko Mzindle, Elin S. Gray, Thandeka Moyo-Gwete, Bronwen E. Lambson, Brent Oosthuysen, Batsirai Mabvakure, Nigel J. Garrett, Salim S.Abdool Karim, Lynn Morris, Penny L. Moore Sep 2022

Dependence On A Variable Residue Limits The Breadth Of An Hiv Mper Neutralizing Antibody, Despite Convergent Evolution With Broadly Neutralizing Antibodies, Cathrine Scheepers, Prudence Kgagudi, Nonkululeko Mzindle, Elin S. Gray, Thandeka Moyo-Gwete, Bronwen E. Lambson, Brent Oosthuysen, Batsirai Mabvakure, Nigel J. Garrett, Salim S.Abdool Karim, Lynn Morris, Penny L. Moore

Research outputs 2022 to 2026

Broadly neutralizing antibodies (bNAbs) that target the membrane-proximal external region (MPER) of HIV gp41 envelope, such as 4E10, VRC42.01 and PGZL1, can neutralize > 80 % of viruses. These three MPER-directed monoclonal antibodies share germline antibody genes (IGHV1 - 69 and IGKV3 - 20) and form a bNAb epitope class. Furthermore, convergent evolution within these two lineages towards a 111.2GW111.3 motif in the CDRH3 is known to enhance neutralization potency. We have previously isolated an MPER neutralizing antibody, CAP206 - CH12, that uses these same germline heavy and light chain genes but lacks breadth (neutralizing only 6 % of …


Nanotherapeutics And Hiv: Four Decades Of Infection Canvass The Quest For Drug Development Using Nanomedical Technologies, Bhupender S. Chhikara, Nirpendra Singh, Poonam, Parveen Bazard, Rajender S. Varma, Keykavous Parang Aug 2022

Nanotherapeutics And Hiv: Four Decades Of Infection Canvass The Quest For Drug Development Using Nanomedical Technologies, Bhupender S. Chhikara, Nirpendra Singh, Poonam, Parveen Bazard, Rajender S. Varma, Keykavous Parang

Pharmacy Faculty Articles and Research

We have seen four decades of human struggle to cure or eradicate HIV infection since the first clinical detection of HIV infection. Various developed drugs such as nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), protease inhibitors, integrase inhibitors, microbicides, and others have known restrictions, such as side effects and resistance development when used alone, and hidden reservoir of the virus, which have opened the gates for the involvement of nanomedicine associated systems, particularly for latent sites of HIV infection. The nanotechnological vehicles, such as liposomes, dendrimers, metal nanoparticles, polymeric nanocapsules/particles, surfactants, and targeted vehicles have become part …


Preparing To Break Barriers: A Mixed Methods Exploration Of The Knowledge, Attitudes, And Perceptions Of Hiv, Prep, And Hiv Risk Behaviors Among Women Of Color In Miami, Florida, Amanda C. Ichite Jun 2022

Preparing To Break Barriers: A Mixed Methods Exploration Of The Knowledge, Attitudes, And Perceptions Of Hiv, Prep, And Hiv Risk Behaviors Among Women Of Color In Miami, Florida, Amanda C. Ichite

FIU Electronic Theses and Dissertations

The U.S. HIV epidemic is characterized by regional, racial, and ethnic disparities. HIV rates are disproportionately higher in the South and Black and Hispanic populations are most impacted. Moreover, the intersectional identity of being a Black or Hispanic woman living in the South has been associated with profound disparities in HIV impact. Prior to the advent of the biomedical HIV prevention tool pre-exposure prophylaxis (PrEP) in 2012, women were limited in their options for female-controlled HIV prevention strategies. Despite the proven efficacy of PrEP, utilization in women is significantly lower than other at-risk groups. In the present study, secondary analysis …


Serpin-Derived Novel Peptide For The Treatment Against Hiv-Induced Inflammation In The Central Nervous System, Yemmy Soler Jun 2022

Serpin-Derived Novel Peptide For The Treatment Against Hiv-Induced Inflammation In The Central Nervous System, Yemmy Soler

FIU Electronic Theses and Dissertations

In the brain, HIV predominantly infects microglia/macrophages and astrocytes to a lesser extent. These cells form virus reservoirs with low levels of infection that are very hard to eradicate. Even though the use of cART increases survival rate in HIV patients, the virus persists as a chronic condition. cART is not able to effectively cross the BBB, control HIV replication, or attenuate inflammation in brain reservoirs. Therefore, the virus still causes neuronal dysfunction, pain-related pathology, and ultimately HAND. In this study, we decided to test the hypothesis that a serpin-derived small peptide, SP16, can serve as an anti-viral, anti-inflammatory, pro-survival, …


Impact Of The Covid-19 Pandemic On The Care Continuum Of Youth Living With Hiv: Qualitative Study Of The Scale It Up Program Clinical Sites, Tyra Dark, Sitaji Gurung, Mary Dooley, Kit N. Simpson, Seyram A. Butame, Sylvie Naar Jun 2022

Impact Of The Covid-19 Pandemic On The Care Continuum Of Youth Living With Hiv: Qualitative Study Of The Scale It Up Program Clinical Sites, Tyra Dark, Sitaji Gurung, Mary Dooley, Kit N. Simpson, Seyram A. Butame, Sylvie Naar

Publications and Research

The study objective was to explore the impact of COVID-19 pandemic restrictions on the clinics’ ability to provide continuous healthcare services to youth (15–24 years) living with HIV (YLWH). One focused semi-structured interview was conducted with each HIV clinic site—resulting in ten interviews. Data were analyzed using thematic analysis techniques assisted by NVIVO coding software and themes indicating barriers and facilitators to providing uninterrupted healthcare were elicited. Six themes were identified that affected the care continuum of YLWH: Timeframe of clinic preparation to address COVID-19 restrictions; impact on treatment cascade monitoring data; impact on patient care; impact on staff and …


Hiv Antiretroviral Medication Neuropenetrance And Neurocognitive Outcomes In Hiv+ Adults: A Review Of The Literature Examining The Central Nervous System Penetration Effectiveness Score, Alyssa Arentoft, Katie Troxell, Karen Alvarez, Maral Aghvinian, Monica Rivera Mindt, Mariana Cherner, Kathleen Van Dyk, Jill Razani, Michaela Roxas, Melissa Gavilanes Jun 2022

Hiv Antiretroviral Medication Neuropenetrance And Neurocognitive Outcomes In Hiv+ Adults: A Review Of The Literature Examining The Central Nervous System Penetration Effectiveness Score, Alyssa Arentoft, Katie Troxell, Karen Alvarez, Maral Aghvinian, Monica Rivera Mindt, Mariana Cherner, Kathleen Van Dyk, Jill Razani, Michaela Roxas, Melissa Gavilanes

All Faculty Open Access Publications

This literature review summarizes the existing research examining the CNS penetration effectiveness (CPE) score and neurocognitive outcomes (i.e., neuropsychological assessment and neurocognitive screening) in HIV+ individuals. Despite the effectiveness of Combined Antiretroviral Therapy (CART) in reducing mortality and morbidity in HIV and controlling viral replication, HIV often persists in the Central Nervous System (CNS), and rates of neurocognitive impairment remain higher than predicted in the post-CART era. The CPE score was developed to rank antiretroviral regimens on their ability to penetrate the CNS and potency in inhibiting the virus, and it has been examined in relation to neurocognitive functioning for …


Interventions For Prevention Of Non-Communicable Diseases Among Adolescents Living With Hiv: A Systematic Review, Eunice Ndirangu, Constance Shumba, Peter Gatiti, Bernard Mutwiri, Amina Abubakar Jun 2022

Interventions For Prevention Of Non-Communicable Diseases Among Adolescents Living With Hiv: A Systematic Review, Eunice Ndirangu, Constance Shumba, Peter Gatiti, Bernard Mutwiri, Amina Abubakar

School of Nursing & Midwifery, East Africa

While the uptake of antiretroviral drugs has rapidly expanded among adolescents and adults living with HIV, research evidence suggests that people living with HIV have a higher risk of non-communicable diseases (NCDs). With more than 35% of the global burden of NCDs stemming from adolescence, there is a need to comprehend the existing evidence on early prevention, detection, and disease management, especially among the at-risk population. In line with the WHO Global Action Plan, 2013–2020 and “Best Buys”, recommendations on practical interventions for NCDs prevention, this systematic review seeks to synthesise evidence on the current interventions for preventing NCDs among …


Feasibility Of Using Electronic Health Records For Cascade Monitoring And Cost Estimates In Implementation Science Studies In The Adolescent Trials Network For Hiv/Aids Interventions, Tyra Dark, Kit N. Simpson, Sitaji Gurung, Amy L. Pennar, Marshall Chew, Sylvie Naar Apr 2022

Feasibility Of Using Electronic Health Records For Cascade Monitoring And Cost Estimates In Implementation Science Studies In The Adolescent Trials Network For Hiv/Aids Interventions, Tyra Dark, Kit N. Simpson, Sitaji Gurung, Amy L. Pennar, Marshall Chew, Sylvie Naar

Publications and Research

Background:One of the most difficult areas in the fight against HIV/AIDS is reaching out to youth aged 13 to 24 years. The proportion of youth living with HIV/AIDS on antiretroviral therapy (ART) and who are virally undetectable is low, highlighting significant challenges for reaching the Joint United Nations Program on HIV targets.

Objective:This study aimed to assess the feasibility of obtaining key clinical indicators and monitoring treatment, viral suppression, and retention components of the youth HIV treatment cascade in Adolescent Trials Network for HIV/AIDS Interventions clinics using electronic health record (EHR) downloads and to provide baseline characteristics for the study …


Understanding Exosomal Extracellular Vesicles And Morphine In The Neuropathology Of Human Immunodeficiency Virus And Differential Zika Virus Strain-Associated Pathology, Allen Caobi Apr 2022

Understanding Exosomal Extracellular Vesicles And Morphine In The Neuropathology Of Human Immunodeficiency Virus And Differential Zika Virus Strain-Associated Pathology, Allen Caobi

FIU Electronic Theses and Dissertations

Exosomal Extracellular Vesicles (xEVs), integral to intercellular communication and regulation of immune responses, have functional effects based on their contents, which they transport to neighboring cells. However, in the context of infection, EV cargo can be modulated, by either infected or uninfected cells. We hypothesize that CNS-associated neuropathology, is partially, due to the cargo transported by the exosomes. We theorize that the cargo released from infected cell-derived xEVs may either facilitate or inhibit viral neuropathogenicity. Here we investigated xEVs in the case of two neurotropic viruses, Zika virus (ZIKV) and Human Immunodeficiency Virus (HIV). The hallmark characteristic of ZIKV-infection is …


Examining The Effects Of Individual And Neighborhood Factors On Hiv Transmission Risk Potential Among People With Hiv, Semiu Olatunde Gbadamosi Mar 2022

Examining The Effects Of Individual And Neighborhood Factors On Hiv Transmission Risk Potential Among People With Hiv, Semiu Olatunde Gbadamosi

FIU Electronic Theses and Dissertations

HIV transmission risk significantly increases in late-diagnosed HIV and at HIV viral load (VL) >1500 copies/mL. The objective of this dissertation was to examine factors associated with HIV transmission risk potential for persons with HIV (PWH) using measures of time from HIV infection to diagnosis and trajectories of VL suppression. Additionally, we sought to determine whether a single yearly VL measure—the current standard to track the HIV epidemic in the United States—is reliable in assessing viral suppression for PWH. The first study estimated the distribution of time from HIV infection to diagnosis in Florida using a CD4 depletion model and …


Age-Associated Gut Dysbiosis, Marked By Loss Of Butyrogenic Potential, Correlates With Altered Plasma Tryptophan Metabolites In Older People Living With Hiv., Smita Ghare, Richa Singhal, Vaughn Bryant, Sabina Gautam, Chanakya Charan Tirumala, Praneet Kumar Srisailam, Andrea Reyes-Vega, Dushan Ghooray, Craig J. Mcclain, Kristi Hoffman, Joseph Petrosino, Kendall Bryant, Varand Govind, Ronald Cohen, Robert L. Cook, Shirish Barve Feb 2022

Age-Associated Gut Dysbiosis, Marked By Loss Of Butyrogenic Potential, Correlates With Altered Plasma Tryptophan Metabolites In Older People Living With Hiv., Smita Ghare, Richa Singhal, Vaughn Bryant, Sabina Gautam, Chanakya Charan Tirumala, Praneet Kumar Srisailam, Andrea Reyes-Vega, Dushan Ghooray, Craig J. Mcclain, Kristi Hoffman, Joseph Petrosino, Kendall Bryant, Varand Govind, Ronald Cohen, Robert L. Cook, Shirish Barve

Faculty Scholarship

Background:

Imbalance in tryptophan (TRP) metabolism and its neuroactive metabolites, serotonin and kynurenine (KYN), is a known pathogenic mechanism underlying neurocognitive impairment. Gut microbiota plays an important role in TRP metabolism, and the production of these neuroactive molecules affects neurocognitive function. Although both HIV infection and normal aging independently induce gut dysbiosis and influence TRP metabolism, their interactive effects on compositional/functional changes in gut microbiota and consequent alterations in TRP metabolites remain largely undetermined.

Methods:

Older people living with HIV infection (PLWH, aged 50–70 years, n = 22) were enrolled in this cross-sectional pilot study. Metagenomic analysis of fecal microbiome …


Human Papillomavirus-Associated Anal Squamous Intraepithelial Lesions In Men Who Have Sex With Men And Transgender Women Living With And Without Hiv In Karachi Pakistan: Implications For Screening And Prevention, Muslima Ejaz, Muhammad Mubarak, Tazeen Saeed Ali, Sören Andersson, Anna Mia Ekström Nov 2021

Human Papillomavirus-Associated Anal Squamous Intraepithelial Lesions In Men Who Have Sex With Men And Transgender Women Living With And Without Hiv In Karachi Pakistan: Implications For Screening And Prevention, Muslima Ejaz, Muhammad Mubarak, Tazeen Saeed Ali, Sören Andersson, Anna Mia Ekström

Community Health Sciences

Background: Anal squamous intraepithelial lesions (ASIL), strongly related to human papilloma virus (HPV) infection, is more prevalent among men who have sex with men (MSM). However, no such data are available for Pakistan yet, and neither HPV vaccination nor anal-cytology screening is implemented in Pakistan. The purpose of this first ever study was to assess the prevalence of HPV-related anal cytological abnormalities among MSM and transgender women living with and without HIV infection in Pakistan.
Methods: We conducted a cross-sectional study from March 2016 to November 2017 at sexual health centers run by the Perwaaz Trust and the National AIDS …


Global, Regional, And National Sex Differences In The Global Burden Of Tuberculosis By Hiv Status, 1990-2019: Results From The Global Burden Of Disease Study 2019, Jorge R. Ledesma, Hmwe Hmwe Kyu, Arianna Maever L. Amit, Veincent Christian F. Pepito, Gbd 2019 Tuberculosis Collaborators, 328 Co-Authors Sep 2021

Global, Regional, And National Sex Differences In The Global Burden Of Tuberculosis By Hiv Status, 1990-2019: Results From The Global Burden Of Disease Study 2019, Jorge R. Ledesma, Hmwe Hmwe Kyu, Arianna Maever L. Amit, Veincent Christian F. Pepito, Gbd 2019 Tuberculosis Collaborators, 328 Co-Authors

Ateneo School of Medicine and Public Health Publications

Background

Tuberculosis is a major contributor to the global burden of disease, causing more than a million deaths annually. Given an emphasis on equity in access to diagnosis and treatment of tuberculosis in global health targets, evaluations of differences in tuberculosis burden by sex are crucial. We aimed to assess the levels and trends of the global burden of tuberculosis, with an emphasis on investigating differences in sex by HIV status for 204 countries and territories from 1990 to 2019.

Methods

We used a Bayesian hierarchical Cause of Death Ensemble model (CODEm) platform to analyse 21 505 site-years of vital …


Comparing Growth Velocity Of Hiv Exposed And Non-Exposed Infants: An Observational Study Of Infants Enrolled In A Randomized Control Trial In Zambia, Obvious Nchimunya Chilyabanyama, Roma Chilengi, Natasha Makabilo Laban, Masuzyo Chirwa, Michelo Simunyandi, Luiza Miyanda Hatyoka, Innocent Ngaruye, Najeeha Talat Iqbal, Samuel Bosomprah Aug 2021

Comparing Growth Velocity Of Hiv Exposed And Non-Exposed Infants: An Observational Study Of Infants Enrolled In A Randomized Control Trial In Zambia, Obvious Nchimunya Chilyabanyama, Roma Chilengi, Natasha Makabilo Laban, Masuzyo Chirwa, Michelo Simunyandi, Luiza Miyanda Hatyoka, Innocent Ngaruye, Najeeha Talat Iqbal, Samuel Bosomprah

Department of Paediatrics and Child Health

Background: Impaired growth among infants remains one of the leading nutrition problems globally. In this study, we aimed to compare the growth trajectory rate and evaluate growth trajectory characteristics among children, who are HIV exposed uninfected (HEU) and HIV unexposed uninfected (HUU), under two years in Zambia.
Method: Our study used data from the ROVAS II study (PACTR201804003096919), an open-label randomized control trial of two verses three doses of live, attenuated, oral RotarixTM administered 6 &10 weeks or at 6 &10 weeks plus an additional dose at 9 months of age, conducted at George clinic in Lusaka, Zambia. Anthropometric measurements …


Human Apobec3 Variations And Viral Infection, Shiva Sadeghpour, Saeideh Khodaee, Mostafa Rahnama, Hamzeh Rahimi, Diako Ebrahimi Jul 2021

Human Apobec3 Variations And Viral Infection, Shiva Sadeghpour, Saeideh Khodaee, Mostafa Rahnama, Hamzeh Rahimi, Diako Ebrahimi

Plant Pathology Faculty Publications

Human APOBEC3 (apolipoprotein B mRNA-editing catalytic polypeptide-like 3) enzymes are capable of inhibiting a wide range of endogenous and exogenous viruses using deaminase and deaminase-independent mechanisms. These enzymes are essential components of our innate immune system, as evidenced by (a) their strong positive selection and expansion in primates, (b) the evolution of viral counter-defense mechanisms, such as proteasomal degradation mediated by HIV Vif, and (c) hypermutation and inactivation of a large number of integrated HIV-1 proviruses. Numerous APOBEC3 single nucleotide polymorphisms, haplotypes, and splice variants have been identified in humans. Several of these variants have been reported to be associated …


Association Of Hiv-1 Infection And Antiretroviral Therapy With Type 2 Diabetes In The Hispanic Population Of The Rio Grande Valley, Texas, Usa, Juan Carlos Lopez Alvarenga, Dora A. Martinez, Alvaro Diaz-Badillo, Liza D. Morales, Rector Arya, Christopher Jenkinson, Joanne E. Curran, John Blangero, Ravi Duggirala, Srinivas Mummidi, Ruben D. Martinez Jul 2021

Association Of Hiv-1 Infection And Antiretroviral Therapy With Type 2 Diabetes In The Hispanic Population Of The Rio Grande Valley, Texas, Usa, Juan Carlos Lopez Alvarenga, Dora A. Martinez, Alvaro Diaz-Badillo, Liza D. Morales, Rector Arya, Christopher Jenkinson, Joanne E. Curran, John Blangero, Ravi Duggirala, Srinivas Mummidi, Ruben D. Martinez

School of Medicine Publications and Presentations

The Rio Grande Valley (RGV) in South Texas has one of the highest prevalence of obesity and type 2 diabetes (T2D) in the United States (US). We report for the first time the T2D prevalence in persons with HIV (PWH) in the RGV and the interrelationship between T2D, cardiometabolic risk factors, HIV-related indices, and antiretroviral therapies (ART). The PWH in this study received medical care at Valley AIDS Council (VAC) clinic sites located in Harlingen and McAllen, Texas. Henceforth, this cohort will be referred to as Valley AIDS Council Cohort (VACC). Cross-sectional analyses were conducted using retrospective data obtained from …


Intimate Partner Violence Is A Barrier To Antiretroviral Therapy Adherence Among Hiv - Positive Women: Evidence From Government Facilities In Kenya, Bornice C. Biomndo, Alexander Bergmann, Nils Lahmann, Lukoye Atwoli Apr 2021

Intimate Partner Violence Is A Barrier To Antiretroviral Therapy Adherence Among Hiv - Positive Women: Evidence From Government Facilities In Kenya, Bornice C. Biomndo, Alexander Bergmann, Nils Lahmann, Lukoye Atwoli

Internal Medicine, East Africa

Introduction: Intimate Partner Violence (IPV) is linked to low engagement with HIV management services and adverse clinical outcomes, including poor ART adherence. In sub-Saharan Africa, studies on pregnant/postpartum women and transactional sex workers have produced divergent evidence regarding IPV’s association with poor ART adherence. We investigate this association among a broad group of women.

Methods: We sampled 408 HIV-positive women receiving free ART from different types of HIV clinics at government health facilities, assessing for IPV exposure by a current partner, ART adherence rate, and other factors that affect ART adherence (e.g. education, disclosure). ART adherence rates were measured using …


Characterization Of Age-Associated Gut Microbial Dysbiosis And Plasma Metabolite Alterations In People Living With Hiv (Plwh)., R. Sighal, Smita Ghare, Vaughn Bryant, Sabina Gautam, Chanakya Charan Tirumala, Andrea Reyes-Vega, Craig J. Mcclain, Ronald Cohen, Varand Govind, R L. Cook, Shirish Barve Apr 2021

Characterization Of Age-Associated Gut Microbial Dysbiosis And Plasma Metabolite Alterations In People Living With Hiv (Plwh)., R. Sighal, Smita Ghare, Vaughn Bryant, Sabina Gautam, Chanakya Charan Tirumala, Andrea Reyes-Vega, Craig J. Mcclain, Ronald Cohen, Varand Govind, R L. Cook, Shirish Barve

Faculty Scholarship

Background: HIV-1 infection and aging are independently associated with gut microbial dysbiosis and neurocognitive impairment. However, the interactive effects of HIV-infection and aging on the development of specific pathogenic features of gut microbial dysbiosis and consequent metabolic abnormalities associated with neurocognitive dysfunction remain largely undetermined and were examined in the present study


Food Insecurity Is Associated With Nonalcoholic Fatty Liver Disease, Cognitive Impairment, And Immune Activation In People Living With Hiv, Javier A. Tamargo Mar 2021

Food Insecurity Is Associated With Nonalcoholic Fatty Liver Disease, Cognitive Impairment, And Immune Activation In People Living With Hiv, Javier A. Tamargo

FIU Electronic Theses and Dissertations

Food insecurity (FI) is a socioeconomic condition characterized by inadequate access to enough food and nutrition to sustain health and wellbeing. Food insecurity is a risk factor for chronic and age-related conditions, raising concerns for the aging population of people living with HIV (PLWH), in whom food insecurity is disproportionately prevalent. PLWH are at increased risk of nutrition-related complications and chronic co-morbidities, thus food insecurity may exacerbate adverse health outcomes in this population. This study investigated whether food insecurity was associated with nonalcoholic fatty liver disease (NAFLD), cognitive impairment, and immune activation among socioeconomically disadvantaged adults living with and without …