Epidemiology Commons^™

Uncovering The Binding Mechanism Of Mutated Omicron Variants Via Computational Strategies, Sajjad Haider, Nadeem Ahmad, Muhammad Shafiq, Ali Raza Siddiqui, Mohammad Nur-E-Alam, Aftab Ahmed, Zaheer Ul-Haq

Pharmacy Faculty Articles and Research

The COVID-19 pandemic, triggered by the SARS-CoV-2 virus, has resulted in nearly 630 million cases and 6.60 million fatalities globally, as of November 2022. SARS-CoV-2, a species of the Coronaviridae family, has a single-stranded positive-sense RNA genome as well as four main structural proteins (S, E, M, and N) required for viral entrance into target cells. The spike protein (S) influences this entry through interactions with human angiotensin-converting enzyme 2 (hACE2) receptor. The World Health Organization (WHO) recognized numerous variants of concern (VOCs) that involve Alpha, Beta, Gamma, Delta, and Omicron, having multiple mutations within the spike protein, altering infection …

Dissecting The Binding Affinity Of Anti-Sars-Cov-2 Compounds To Human Transmembrane Protease, Serine 2: A Computational Study, Yue-Hui Shi, Jian-Xin Shen, Yan Tao, Yuan-Ling Xia, Zhi-Bi Zhang, Yun-Xin Fu, Ke-Qin Zhang, Shu-Qun Liu

Faculty, Staff and Student Publications

The human transmembrane protease, serine 2 (TMPRSS2), essential for SARS-CoV-2 entry, is a key antiviral target. Here, we computationally profiled the TMPRSS2-binding affinities of 15 antiviral compounds. Molecular dynamics (MD) simulations for the docked complexes revealed that three compounds exited the substrate-binding cavity (SBC), suggesting noncompetitive inhibition. Of the remaining compounds, five charged ones exhibited reduced binding stability due to competing electrostatic interactions and increased solvent exposure, while seven neutral compounds showed stronger binding affinity driven by van der Waals (vdW) interactions compensating for unfavorable electrostatic effects (including electrostatic interactions and desolvation penalties). Positive and negative hotspot residues were identified …

Temporal Trends And Patterns For Early- And Late-Onset Adult Liver Cancer Incidence Vary By Race/Ethnicity, Subsite, And Histologic Type In The United States From 2000 To 2019, Mei-Chin Hsieh, Kendra L. Ratnapradipa, Laura Rozek, Shengdi Wen, Yu Wen Chiu, Edward S. Peters

School of Public Health Faculty Publications

Purpose: To examine incidence trends and patterns for early- and late-onset liver cancer. Methods: Liver and intrahepatic bile duct (IBD) cancers diagnosed between 2000 and 2019 were acquired from 22 SEER registries. Variables included early-onset (20–49) vs. late-onset (50+), anatomic subsite, histologic type (hepatocellular carcinoma [HCC] and IBD cholangiocarcinoma [ICC]), sex, and race/ethnicity. Age-standardized incidence rates were calculated using SEER*Stat. Jointpoint regression analysis was employed to estimate the annual percent change (APC) and the average APC (AAPC) with pairwise comparisons for trend by sex and by race/ethnicity stratified by age and subsite. Results: Liver cancer incidence decreased among early-onset (AAPC …

Temporal Trends And Patterns For Early- And Late-Onset Adult Liver Cancer Incidence Vary By Race/Ethnicity, Subsite, And Histologic Type In The United States From 2000 To 2019, Mei-Chin Hsieh, Kendra L. Ratnapradipa, Laura Rozek, Shengdi Wen, Yu-Wen Chiu, Edward S. Peters

Journal Articles: Epidemiology

PURPOSE: To examine incidence trends and patterns for early- and late-onset liver cancer.

METHODS: Liver and intrahepatic bile duct (IBD) cancers diagnosed between 2000 and 2019 were acquired from 22 SEER registries. Variables included early-onset (20-49) vs. late-onset (50+), anatomic subsite, histologic type (hepatocellular carcinoma [HCC] and IBD cholangiocarcinoma [ICC]), sex, and race/ethnicity. Age-standardized incidence rates were calculated using SEER*Stat. Jointpoint regression analysis was employed to estimate the annual percent change (APC) and the average APC (AAPC) with pairwise comparisons for trend by sex and by race/ethnicity stratified by age and subsite.

RESULTS: Liver cancer incidence decreased among early-onset (AAPC …

Effect Of Praziquantel Treatment On The Nutritional Status Of Children Infected With Schistosoma Haematobium, Louis Fok, Hongying Dai, David Brett-Major, Abebe Animut, Berhanu Erko, John Linville, Yohannes Negash, Abraham Degarege

Journal Articles: Epidemiology

This quasi-experimental trial examined the relationship between Schistosoma haematobium infection and nutritional status, and the impact of single dose praziquantel (PZQ) therapy on undernutrition. A total of 353 children were examined, 112 of which were infected with S. haematobium and treated with PZQ. Children's heights, weights, and mid-upper arm circumferences (MUAC) were measured at baseline and one month post-treatment. Infected children had significantly smaller mean BMI-for-age z-scores (BAZ) (-1.16 vs. 0.11, p < 0.01) and weight-for-age z-scores (WAZ) (-0.61 vs. -0.31, p = 0.03) than the uninfected ones at baseline. S. haematobium infection was associated with underweight (adjusted OR: 1.76, 95% CI: 1.63-1.90). One month after treatment, BAZ, WAZ, …

Transportation Barriers To Healthcare Access: A Scoping Review Of Measurement Approaches And Associated Health Outcomes, Josiane Kabayundo, Muskan Ahuja, Snehal Jadhav, Lisa C. Smith, Farzana A. Bithi, Shamim Shahi, George Johnson, Siddhi Munde, Kendra L. Ratnapradipa

Journal Articles: Epidemiology

Background

Objectives

Methods

A Scoping Review Of Population Diversity In The Common Genomic Aberrations Of Clear Cell Renal Cell Carcinoma, Sean S. Kumar, Ninad Khandekar, Komal Dani, Saina R. Bhatt, Vinay Duddalwar, Anishka D' Souza

Department of Medicine Faculty Publications

Introduction: Previous literature has shown that clear cell renal cell carcinoma (ccRCC) is becoming a more prevalent diagnosis and that the incidence and mortality differ both regionally and racially. While the molecular profiles for ccRCC are studied regionally through biopsy and sequencing techniques, the genomic landscape and ccRCC diversity data are not well studied. We conducted a review of the known genomic data on 6 of the most clinically relevant DNA biomarkers in ccRCC: von Hippel-Lindau (vHL), Polybromo-1 (PBRM1), Breast Cancer Gene 1-Associated Protein 1 (BAP1), Histone-Lysine N-Methyltransferase Domain-Containing 2 (SETD2), Mammalian Target of Rapamycin (mTOR), and Lysine-Specific Demethylase 5C …

Performance Of Urine Reagent Test Strips In Detecting Schistosoma Haematobium Infection In Individual And Pooled Urine Samples, Abraham Degarege, Berhanu Erko, David Brett-Major, Bruno Levecke, Abebe Animut, Yohannes Negash, M. Jana Broadhurst, Tzeyu L. Michaud, Christopher R. Bilder

Journal Articles: Epidemiology

This study evaluated the performance of urine reagent strips (URSs) in detecting Schistosoma haematobium infection in individual and pooled urine samples. Between June 2022 and April 2023, 2634 urine samples (10 mL each) from school-age children (5-15 years) in 15 villages across Ethiopia's Afar, Benishangul-Gumuz, and Gambella regions were tested using urine filtration microscopy (UFM) and URSs for blood, a marker of S. haematobium eggs. Pooled samples from 5, 10, 20, and 40 individuals (one positive, others negative) were examined with both methods. UFM results were used to calculate URSs' sensitivity, specificity, and predictive values for detecting infection. A total …

Lower Electronic Health Record Adoption And Interoperability In Rural Versus Urban Physician Participants: A Cross-Sectional Analysis From The Cms Quality Payment Program, Alfred J. Anzalone, Carol R. Geary, Ran Dai, Shinobu Watanabe-Galloway, James C. Mcclay, James Campbell

Journal Articles: Epidemiology

BACKGROUND: The Health Information Technology for Economic and Clinical Health Act of 2009 introduced the Meaningful Use program to incentivize the adoption of electronic health records (EHRs) in the U.S. This study investigates the disparities in EHR adoption and interoperability between rural and urban physicians in the context of federal programs like the Medicare Access and CHIP Reauthorization Act of 2015 and the 21st Century Cures Act.

METHODS: A cross-sectional analysis was conducted using the 2021 Quality Payment Program Experience Report Public Use File to compare EHR adoption and Promoting Interoperability scores (PISs) between urban and rural physician participants. Data …

Occupational Exposures To Chemicals In Dentistry: A Scoping Review, Geneviève Picard, Tisha Prakash, France Labrèche, Sabrina Gravel

Revues de littérature, synthèses de connaissances

The dental workforce comprises a variety of professions, most of which are predominantly occupied by women. Dental workers can be exposed to numerous toxic chemicals such as mercury, methacrylate polymers, and silica. This scoping review aims to synthesize the scientific literature on quantified chemical exposures and to identify research gaps in occupational chemical hazards faced by dental professionals. This review followed the Joanna Briggs Institute approach and PRISMA-ScR guidelines, using three concepts to search PubMed, Embase, and Web of Science: workers, dental care, and chemicals. Studies from high-income countries, published in French or English between 2000 and 2024 and reporting …

Expertise Or Experience: Comparing Discussion Of Drought Between Audiences And Agencies In Nebraska, Kansas, Iowa, And Missouri, Cory L. Armstrong, Sharon E. Baldinelli, Kelly Helm Smith, Sharon J. Medcalf

Journal Articles: Epidemiology

Significant portions of the states in FEMA region 7 (Kansas, Nebraska, Missouri, and Iowa) were in drought in 2022–23. Culling data gathered from a prominent social media platform and from focus group discussions, this research examines how drought information was communicated between the public officials and the general public. Through the lens of the two-step flow of communication theory, the central research question explored the differences between public conversations about drought among individuals experiencing it and the viewpoints of experts who work on drought-related issues. Results from social media conversations were examined, along with insights from focus group discussions involving …

Ambient Air Pollution And Survival Among Black Women With Epithelial Ovarian Cancer Across Diverse Geographical Regions Of The United States, Ekaterina Chirikova, Courtney E. Johnson, Anke Huels, Pushkar P. Inamdar, Elisa V. Bandera, Lawrence H. Kushi, Jennifer A. Doherty, Joellen M. Schildkraut, Hari S. Iyer, Melissa Bondy, Edward S. Peters, Kendra L. Ratnapradipa, Jeffrey Marks, Christopher Pierson, Theresa Hastert, Kristin Haller, Grace Christensen, Salma Shariff-Marco, Scarlett L. Gomez, Andrew Lawson

Journal Articles: Epidemiology

Background: Ovarian cancer is a leading cause of gynecologic cancer mortality, with Black women experiencing 5-year survival rates of only 41%. Disproportionate air pollution exposure may impact survival. We evaluated associations of fine particulate matter (PM_2.5) and nitrogen dioxide (NO₂) exposure with survival among Black women with epithelial ovarian cancer using data from the California Cancer Registry (CCR, n = 540) and the multi-state African American Cancer Epidemiology Study (AACES, n = 766).

Methods: Annual PM_2.5 and NO₂ levels were estimated at a 1 km resolution using well-validated ensemble-based prediction models derived from the …

Systemic Therapy Targeting Psoriatic Inflammation Is Associated With Decreased Incidence Of Dementia: An Observational Retrospective Cohort Study, Madison P. Olexson, Ana Ormaza Vera, Chunghwan Ro, Clinton W. Enos

Department Dermatology Faculty Publications

[Introduction] To the Editor: Psoriasis, an immune-mediated chronic inflammatory skin disorder, has been implicated in cognitive impairment and dementia.1, 2, 3 Emerging evidence suggests that systemic inflammation contributes to neuroinflammation and resultant cytokine-driven neurodegeneration, although findings remain inconclusive.1, 2, 3 While systemic therapies such as biologics and conventional disease-modifying antirheumatic drugs are routinely used in psoriasis management, their role in modulating dementia in this population remains underexplored, with research yielding mixed results.1, 2, 3 We conducted a large-scale, retrospective cohort study to investigate the relationship between psoriasis and dementia and whether systemic treatments for psoriasis impact this association.

Resilience And Reality: Exploring The Lived Experiences Of People Living With Hiv In Texas During The Covid-19 Pandemic – A Qualitative Study., Ahmed F. Alanazi

Social Work Dissertations - Archive

This study investigated the lived experiences of individuals living with HIV (PLWH) in the Dallas-Fort Worth (DFW) area of Texas during the COVID-19 pandemic, using an Interpretative Phenomenological Analysis (IPA) framework. The research examined the intersection of health, social dynamics, and psychological resilience among PLWH, who faced compounded vulnerabilities due to systemic inequities and the dual public health crises of HIV and COVID-19. Through semi-structured interviews with ten participants from diverse backgrounds, the study captured the profound impacts of disrupted healthcare systems, heightened stigma, and social isolation on this marginalized population. The findings reveal that the pandemic exacerbated existing inequities …

Psychometric Evaluation Of A Novel Measure Of Trauma-Related Cannabis Use To Cope, Sage E. Hawn, Terrell A. Hicks, Christopher Latourrette, Anita Thomas, Daniela Chaname, Sarah Ehlke, Abigail Powers Lott

Psychology Faculty Publications

Background: Posttraumatic stress disorder (PTSD) and cannabis use disorder (CUD) are commonly comorbid and are associated with many negative public health outcomes. One plausible explanation for this comorbidity comes from a self-medication framework, which suggests people use cannabis to cope with PTSD symptoms. Despite theoretical and empirical evidence for PTSD-related cannabis use to cope, no measure of this construct exists.

Objective: We sought to address this gap by developing and validating a novel measure of PTSD-specific cannabis self-medication, which we have termed the Trauma-Related Cannabis Use to Cope (TRCU) questionnaire.

Method: The psychometric properties of the TRCU and how it …

Generation Z’S Perception Of Skin Cancer And How It Relates To Climate Change, Piercen Bogolea

Honors Undergraduate Theses

Skin cancer is the most common cancer worldwide, and climate change has been identified as a significant contributor. Preventative action early on can help reduce occurrence, but it is unknown if Generation Z is aware of this and is taking the necessary action now to protect themselves. This research aims to gauge the perception of Generation Z on the severity of skin cancer, the relationship between climate change and skin cancer, and the prevalence of preventative measures being taken. A survey was distributed to students aged 18 to 27 enrolled at the University of Central Florida through mixed sampling. The …

The Sky’S The Limit: Improving Satellite Imagery Data Literacy To Address Noncommunicable Diseases, M. Courtney Hughes, Elizabeth J. Folkmann

Faculty Articles, Papers, and Other Scholarship

Low-and middle-income countries experience 77% of the world’s premature deaths caused by non- communicable diseases, and their underlying health determinant data are often scarce and inaccurate. Im- proving satellite imagery data literacy worldwide is an integral step toward using the vast amount of publicly available data collected via satellites, such as air pollution, green space and light at night—all determinants of non-communicable diseases. Existing machine learning–based algorithms enable automated analysis of satel- lite imagery data, but health officials and scientists must know where to find and how to apply these algorithms to measure risk and target interventions.

Academic Proficiency In Ugandan Children With Sickle Cell Anemia: A Cross-Sectional Study, Robert Opoka, Shubaya Kasule Naggayi, Paul Bangirana, Simple Ouma, Betty Nyangoma, Annet Birabwa, Grace Nambatya, Maxencia Kabatabaazi, Ann Jacqueline Nakitende, Dennis Kalibbala

Paediatrics and Child Health, East Africa

Introduction: Academic proficiency is crucial for advancing learning goals, school advancement, and future economic security. Children with sickle cell anemia (SCA) in sub-Saharan Africa (SSA) may be at risk of disease-associated learning difficulties. Limited data exist on this topic among school-age children in the region. We aimed to assess academic proficiency in a sample of children with SCA in Uganda compared with unaffected controls.

Methods: This cross-sectional study was conducted in Kampala, Uganda. Participants were school-going children with SCA, aged 6–12 years, attending Mulago Hospital SCA Clinic, and age-matched sibling controls without SCA. Academic proficiency was assessed by the Wide …

Temporal Network Analysis Of Comorbidities Among People With Hiv In South Carolina, Yunqing Ma, Matthew Lohman Ph.D., Monique J. Brown Ph.D., Mph, Yichen Li, Xiaoming Li Ph.D., Bankole Olatosi Ph.D., Jiajia Zhang Ph.D.

Faculty Publications

Introduction: People with HIV experience a high rate of comorbidities that can complicate their health outcomes. Understanding the prevalence, interrelationships and temporal development of these comorbidities is crucial for improving health management and quality of life for people with HIV. Methods: We used a population-based cohort extracted from statewide electronic health record (EHR) data in South Carolina (SC), including 18 649 people with HIV who survived at least 1 year after HIV diagnosis between January 1, 2005, and December 31, 2020. Comorbidities and organ systems were classified using ICD-10 codes. Network analysis was performed to assess the closeness centrality among …

High-Resolution Geospatial Database: National Criteria-Air-Pollutant Concentrations In The Contiguous U.S., 2016–2020, Tianjun Lu, Sun-Young Kim, Julian D. Marshall

Epidemiology and Environmental Health Faculty Publications

Concentration estimates for ambient air pollution are used widely in fields such as environmental epidemiology, health impact assessment, urban planning, environmental equity and sustainability. This study builds on previous efforts by developing an updated high-resolution geospatial database of population-weighted annual-average concentrations for six criteria air pollutants (PM_2.5, PM₁₀, CO, NO₂, SO₂, O₃) across the contiguous U.S. during a five-year period (2016–2020). We developed Land Use Regression (LUR) models within a partial-least-squares–universal kriging framework by incorporating several land use, geospatial and satellite–based predictor variables. The LUR models were validated using conventional …