Digital Commons Network^™

Sex Differences In Becoming A Current Electronic Cigarette User, Current Smoker And Current Dual User Of Both Products: A Longitudinal Study Among Mexican Adolescents, Rosibel Rodríguez-Bolaños, Edna Arillo-Santillán, Inti Barrientos-Gutiérrez, Luis Zavala-Arciniega, Charity A. Ntansah, Jim Thrasher

Faculty Publications

This study aimed to assess sex differences in predictors for becoming a current exclusive electronic cigarette (e-cigarette) user, current exclusive smoker, or current dual user (concurrent smoking and e-cigarette use). This longitudinal study included 2399 females and 2177 males who had tried neither cigarettes nor e-cigarettes at baseline and attended 57 middle schools in the three largest cities in Mexico. We estimated multinomial logistic models stratified by sex. At follow-up, the prevalence of current exclusive e-cigarette use was 6.4% for males and 5.5% for females; current exclusive smoking was similar among males (3.6%) and females (3.5%); dual use was 2.4% …

Small Molecules That Inhibit Tnf Signalling By Stabilising An Asymmetric Form Of The Trimer, James O'Connell, John Porter, Boris Kroeplien, Tim Norman, Stephen Rapecki, Rachel E. Davis, David Mcmillan, Tracy Arakaki, Alex Burgin, David Fox Iii, Tom Ceska, Fabien Lecomte, Alison Maloney, Alex Vugler, Bruce Carrington, Benjamin P. Cossins, Tim Bourne, Alastair Lawson

Faculty Publications

Tumour necrosis factor (TNF) is a cytokine belonging to a family of trimeric proteins; it has been shown to be a key mediator in autoimmune diseases such as rheumatoid arthritis and Crohn's disease. While TNF is the target of several successful biologic drugs, attempts to design small molecule therapies directed to this cytokine have not led to approved products. Here we report the discovery of potent small molecule inhibitors of TNF that stabilise an asymmetrical form of the soluble TNF trimer, compromising signalling and inhibiting the functions of TNF in vitro and in vivo. This discovery paves the way for …

Different Combinations Of Behavior Change Interventions And Frequencies Of Interpersonal Contacts Are Associated With Infant And Young Child Feeding Practices In Bangladesh, Ethiopia, And Vietnam, Sunny S. Kim, Phuong Hong Nguyen, Lan Mai Tran, Silvia Alayon, Purnima Menon, Edward A. Frongillo Jr.

Faculty Publications

Background: Social and behavior change communication interventions are integral to improving dietary and care practices, but evidence on the impact of the combination and intensity of these interventions in different contexts is scarce. Objectives: We examined the extent of and factors associated with intervention exposure: interpersonal communication (IPC) alone or with other interventions (i.e., mass media, community mobilization, or nutrition-sensitive agricultural activities), number of and factors associated with IPC contacts, and combinations of intervention components and number of contacts associated with infant and young child feeding (IYCF) practices. Methods: We used endline survey data from impact evaluations in Bangladesh, Ethiopia, …

Why Acute Ischemic Stroke Patients In The United States Use Or Do Not Use Emergency Medical Services Transport? Findings Of An Inpatient Survey, Sudha Xirasagar, Meng-Han Tsai, Khosrow Heidari, James W. Hardin, Yuqi Wu, Robert Wronski, Dana Hurley, Edward C. Jauch, Souvik Sen

Faculty Publications

Background: Patients with acute ischemic stroke (AIS) who use emergency medical services (EMS) receive quicker reperfusion treatment which, in turn, mitigates post-stroke disability. However, nationally only 59% use EMS. We examined why AIS patients use or do not use EMS.

Methods: During 2016–2018, a convenience sample of AIS patients admitted to a primary stroke center in South Carolina were surveyed during hospitalization if they were medically fit, available for survey when contacted, and consented to participate. The survey was programed into EpiInfo with skip patterns to minimize survey burden and self-administered on a touchscreen computer. Survey questions covered symptom characteristics, …

Why Acute Ischemic Stroke Patients In The United States Use Or Do Not Use Emergency Medical Services Transport? Findings Of An Inpatient Survey, Sudha Xirasagar

Faculty Publications

Background Patients with acute ischemic stroke (AIS) who use emergency medical services (EMS) receive quicker reperfusion treatment which, in turn, mitigates post-stroke disability. However, nationally only 59% use EMS. We examined why AIS patients use or do not use EMS.

Methods During 2016–2018, a convenience sample of AIS patients admitted to a primary stroke center in South Carolina were surveyed during hospitalization if they were medically fit, available for survey when contacted, and consented to participate. The survey was programed into EpiInfo with skip patterns to minimize survey burden and self-administered on a touchscreen computer. Survey questions covered symptom characteristics, …

7-Epi-Clusianone, A Multi-Targeting Natural Product With Potential Chemotherapeutic, Immune-Modulating, And Anti-Angiogenic Properties, Wesley F. Taylor, Maria Yanez, Sara E. Moghadam, Mahdi Moridi Farimani, Sara Soroury, Samad N. Ebrahimi, Marzieh Tabefam, Ehsan Jabbarzadeh

Faculty Publications

Targeted therapies have changed the treatment of cancer, giving new hope to many patients in recent years. The shortcomings of targeted therapies including acquired resistance, limited susceptible patients, high cost, and high toxicities, have led to the necessity of combining these therapies with other targeted or chemotherapeutic treatments. Natural products are uniquely capable of synergizing with targeted and non-targeted anticancer regimens due to their ability to affect multiple cellular pathways simultaneously. Compounds which provide an additive effect to the often combined immune therapies and cytotoxic chemotherapies, are exceedingly rare. These compounds would however provide a strengthening bridge between the two …

Multilevel Analysis In Rural Cancer Control: A Conceptual Framework And Methodological Implications, Whitney Zahnd, Sara L. Mclafferty, Jan M. Eberth

Faculty Publications

Rural populations experience a myriad of cancer disparities ranging from lower screening rates to higher cancer mortality rates. These disparities are due in part to individual-level characteristics like age and insurance status, but the physical and social context of rural residence also plays a role. Our objective was two-fold: 1) to develop a multilevel conceptual framework describing how rural residence and relevant micro, macro, and supra-macro factors can be considered in evaluating disparities across the cancer control continuum and 2) to outline the unique considerations of multilevel statistical modeling in rural cancer research. We drew upon several formative frameworks that …

Systemic Toxicity Reported For Cdk8/19 Inhibitors Cct251921 And Msc2530818 Is Not Due To Target Inhibition, Mengqian Chen, Jing Li, Jiaxin Liang, Zanshé S. Thompson, Katie Kathrein, Eugenia Broude, Igor Roninson

Faculty Publications

CDK8/19 kinases, which mediate transcriptional reprogramming, have become an active target for cancer drug discovery. Several small-molecule CDK8/19 inhibitors showed in vivo efficacy and two have entered clinical trials, with no significant toxicities reported. However, Clarke et al. (eLife 2016; 5; e20722) found severe systemic toxicity associated with two potent CDK8/19 inhibitors, Cmpd3 (CCT251921) and Cmpd4 (MSC2530818), and suggested that their toxicity was due to on-target effects. Here, we compared five CDK8/19 inhibitors: Cmpd3, Cmpd4, Senexin B, 16-didehydro-cortistatin A (dCA) and 15w, in different assays. Only Cmpd4 showed striking toxicity in developing zebrafish. In cell-based assays for CDK8 and CDK19 …

The Role Of Ict In Antiretroviral Therapy-Related Knowledge Seeking Among Older Chinese Living With Hiv, Yao Zhang, Xiaoming Li Ph.D., Shan Qiao Ph.D., Yuejiao Zhou, Zhiyong Shen

Faculty Publications

Antiretroviral therapy (ART) enables HIV patients to reduce disease progression. ART adherence is closely related to patients’ knowledge about the medical treatment. This study investigated the role of information and communication technologies (ICTs) in supporting ART-related knowledge seeking among older Chinese with HIV, using cross-sectional data collected from 2012 to 2013 in Guangxi, China. Of the 2987 HIV patients, 688 were 45 years or older and going through ART. We used an 11-item scale (α=0.69), which was developed based on existing literature, to assess ART-related knowledge to obtain a composite score (0-11). Less than 5% of the participants sought HIV-related …

Inflammation And Acute Traffic-Related Air Pollution Exposures Among A Cohort Of Youth With Type 1 Diabetes, Robin C. Puett, Jeff D. Yanosky, Murray A. Mittleman, Jessica Montresor-Lopez, Ronny A. Bell, Tessa L. Crumee, Dana Dabeleae, Lawrence M. Dolan, Ralph B. D'Agostino Jr, Santica M. Marcovina, Catherine Pihokeri, Kristi Reynolds, Elaine Urbina, Angela D. Liese

Faculty Publications

Background: Evidence remains equivocal regarding the association of inflammation, a precursor to cardiovascular disease, and acute exposures to ambient air pollution from traffic-related particulate matter. Though youth with type 1 diabetes are at higher risk for cardiovascular disease, the relationship of inflammation and ambient air pollution exposures in this population has received little attention.

Objectives: Using five geographically diverse US sites from the racially- and ethnically-diverse SEARCH for Diabetes in Youth Cohort, we examined the relationship of acute exposures to PM2.5 mass, Atmospheric Dispersion Modeling System (ADMS)-Roads traffic-related PM concentrations near roadways, and elemental carbon (EC) with biomarkers of inflammation …

Prospective Analysis Of Food Consumption And Nutritional Status And The Impact On The Dietary Inflammatory Index In Women With Breast Cancer During Chemotherapy, Isis Danyelle Dias Custódio, Fernanda De Paula Franco, Eduarda Da Costa Marinho, Taísa Sabrina Silva Pereira, Mariana Tavares Miranda Lima, Maria Del Carmen Bisi Molina, Nitin Shivappa, James R. Hébert, Carlos Eduardo Paiva, Yara Cristina De Paiva Maia

Faculty Publications

Considering the implications of adverse effects of chemotherapy (CT) and the potential impact of diet on patients’ recovery, this study aimed to prospectively evaluate the association between the consumption of food groups, patients’ Dietary Inflammatory Index (DII®) scores, and their nutritional status. Anthropometric and dietary assessments of 55 women with breast cancer (BC) were performed at three time points. T0 is the time point after the first CT cycle, T1 is the time point after the intermediate CT cycle, and T2 is the time point after the last CT cycle. We identified a significant increase in weight, body mass index, …

Development And Psychometric Properties Of A Prostate Cancer Knowledge Scale For African American Men, Otis L. Owens, Abbas S. Tavakoli, Theda Rose, Nikki R. Wooten

Faculty Publications

African American men have the highest prostate cancer-related mortality nationally. In response to this disparity, targeted interventions are emerging to enhance African American men's prostate cancer (PrCA) knowledge to ensure they are equipped to make informed decisions about PrCA screening with health-care providers. African American men's PrCA knowledge has been measured inconsistently over time with limited psychometric evidence. The factor structure of this construct in African American men is relatively unknown. This study describes the development and psychometric evaluation of an 18-item Prostate Cancer Knowledge Scale among 352 African American men. Exploratory factor analysis (EFA) was conducted using weighted least …

The Empower Action Model: A Framework For Preventing Adverse Childhood Experiences By Promoting Health, Equity, And Well-Being Across The Life Span, Aditi Srivastav, Melissa Strompolis, Amy Moseley, Kelsay Shania Daniels

Faculty Publications

The empower action model addresses childhood adversity as a root cause of disease by building resilience across multiple levels of influence to promote health, equity, and well-being. The model builds on the current evidence around adverse childhood experiences and merges important frameworks within key areas of public health—the socio-ecological model, protective factors, race equity and inclusion, and the life course perspective. The socio-ecological model is used as the foundation for this model to highlight the multilevel approach needed for improvement in public health. Five key principles that build on the protective factors literature are developed to be applied at each …

Development And Psychometric Properties Of A Prostate Cancer Knowledge Scale For African American Men, Otis L. Owens, Abbas Tavakoli Drph, Theda Rose, Nikki R. Wooten

Faculty Publications

African American men have the highest prostate cancer-related mortality nationally. In response to this disparity, targeted interventions are emerging to enhance African American men's prostate cancer (PrCA) knowledge to ensure they are equipped to make informed decisions about PrCA screening with health-care providers. African American men's PrCA knowledge has been measured inconsistently over time with limited psychometric evidence. The factor structure of this construct in African American men is relatively unknown. This study describes the development and psychometric evaluation of an 18-item Prostate Cancer Knowledge Scale among 352 African American men. Exploratory factor analysis (EFA) was conducted using weighted least …

A Baker's Dozen Of Top Antimicrobial Stewardship Intervention Publications In 2018, Elias B. Chahine, Spencer H. Durham, Krutika N. Mediwala, Daniel B. Chastain, Timothy P. Gauthier, Brandon K. Hill, Bruce M. Jones, Jamie J. Kisgen, Ashley H. Marx, Kayla R. Stover, Marylee V. Worley, Christopher M. Bland, P Brandon Bookstaver

Faculty Publications

With an increasing number of antimicrobial stewardship-related articles published each year, attempting to stay current is challenging. The Southeastern Research Group Endeavor (SERGE-45) identified antimicrobial stewardship-related peer-reviewed literature that detailed an actionable intervention for 2018. The top 13 publications were selected using a modified Delphi technique. These manuscripts were reviewed to highlight the actionable intervention used by antimicrobial stewardship programs to provide key stewardship literature for teaching and training as well as to identify potential intervention opportunities within one's institution.

The Association Between Dietary Inflammatory Index (Dii) And Cancer Risk In Korea: A Prospective Cohort Study Within The Koges-Hexa Study, Injeong Ryu, Minji Kwon, Cheongmin Sohn, Nitin Shivappa, James R. Hébert, Woori Na, Mi Kyung Kim

Faculty Publications

Several epidemiological studies have shown that there are consistently positive associations between dietary inflammatory index (DII (R)) scores and cancer incidence in Western populations. However, few DII-cancer studies have been conducted in East Asian populations. In a large cohort representative of the general Korean population, we investigated whether the DII is associated with overall cancer risk. A total of 163,660 participants (56,781 males and 106,879 females) had evaluable data for analyses. This follow-up study was carried out over the course of 7.9 years. DII scores were calculated based on Semi-Quantitative Food-Frequency Questionnaire (SQ-FFQ) data for 106 food items. Cancers were …

Understanding And Use Of Food Labeling Systems Among Whites And Latinos In The United States And Among Mexicans: Results From The International Food Policy Study, 2017, Claudia Nieto, Alejandra Jauregui, Alejandra Contreras-Manzano, Edna Arillo-Santillan, Simon Barquera, Christine M. White, David Hammond, Jim Thrasher

Faculty Publications

Background Obesity and chronic diseases could be prevented through improved diet. Most governments require at least one type of food labeling system on packaged foods to communicate nutrition information and promote healthy eating. This study evaluated adult consumer understanding and use of nutrition labeling systems in the US and Mexico, the most obese countries in the world.

Methods Adults from online consumer panels in the US (Whites n = 2959; Latinos n = 667) and in Mexico (n = 3533) were shown five food labeling systems: 1. Nutrition Facts Table (NFT) that shows nutrients of concern per serving; 2. Guideline …

Reliability Of The American Community Survey Estimates Of Risk-Adjusted Readmission Rankings For Hospitals Before And After Peer Group Stratification, Nathaniel Bell, Ana Lòpez-De Fede, Bo Cai

Faculty Publications

Importance Since the transition to the American Community Survey, data uncertainty has complicated its use for policy making and research, despite the ongoing need to identify disparities in health care outcomes. The US Centers for Medicare & Medicaid Services’ new, stratified payment adjustment method for its Hospital Readmissions Reduction Program may be able to reduce the reliance on data linkages to socioeconomic survey estimates.

Objective To determine whether there are differences in the reliability of socioeconomically risk-adjusted hospital readmission rates among hospitals that serve a disproportionate share of low-income populations after stratifying hospitals into peer group–based classification groups.

Design, Setting, …

Characterizing Cdk8/19 Inhibitors Through A Nfκb-Dependent Cell-Based Assay, Jng Li, Donald C. Porter, Eugenia Broude, Igor Roninson, Mengqian Chen

Faculty Publications

Cell-based assays for CDK8/19 inhibition are not easily defined, since there are no known cellular functions unique to these kinases. To solve this problem, we generated derivatives of 293 cells with CRISPR knockout of one or both of CDK8 and CDK19. Double knockout (dKO) of CDK8 and CDK19 together (but not individually) decreased the induction of transcription by NFκB (a CDK8/19-potentiated transcription factor) and abrogated the effect of CDK8/19 inhibitors on such induction. We generated wild type (WT) and dKO cell lines expressing luciferase from an NFκB-dependent promoter. Inhibitors selective for CDK8/19 over other CDKs decreased TNFα-induced luciferase expression in …

Analysis Of Hpv16 Variants In The Carolina Women’S Care Study And A Comparison Of Gene Expression Profiles Of Exfoliated Cervical Cells From Women Who Either Clear Or Do Not Clear An Hpv16 Infection, Erica Shirlene Green

Theses and Dissertations

Human papillomavirus (HPV) is the etiologic agent for cervical cancer with HPV type 16 (HPV16) being found in about 50% of cervical cancers worldwide. HPVs vary in genomic (DNA) sequence not only between types, but also within types, known as variants. Variants of a particular HPV type may differ by up to 2% in nucleotide sequence in the coding region and up to 5% in the noncoding region. Variants within HPV16 have been identified and grouped into six distinct phylogenetic branches, which segregate geographically: European (E), Asian-American (As.A), African-1 (Af-1), African-2 (Af- 2), Asian (As), and North American (NA). However, …

Did Medicaid Expansion Under The Affordable Care Act Reduce The Likelihood That People Report Employment Status Changes Due To Health, U.S., 2009-2017, Songyuan Deng

Theses and Dissertations

Medicaid expansion of Affordable Care Act (ACA) extended coverage to low-income working adults. While Medicaid expansion led to increased healthcare use and national healthcare expenditures, current studies do not examine the effects of Medicaid expansion on health status from the perspective of social roles, for example, changes in employment status. This study use data from the Current Population Survey to examine the association between Medicaid expansion and the probability to attribute part-time work or not-in-labor- force to health issues among people with family annual income no more than 138 of Federal Poverty Level, with a difference-in-differences study design. We found …

Examining Women’S Perceptions Of Maternity Care In Public And Private Sectors Of National Guard Hospitals In Saudi Arabia: A Qualitative Study, Hanin M. Almahmoud

Theses and Dissertations

Every second, a baby is born. The process of birth is a complex one – biologically, medically, and emotionally. In particular, women in labor need both physical and emotional care. They need to be heard, to be comforted, and to be safe.

Women’s satisfaction can be used as a legitimate way to measure the quality of maternity care. Moreover, when health systems practice patient-centered care and listen to women’s concerns and what they want out of their care, it can lead to improvements in their satisfaction. Hospitals in Saudi Arabia are considered to be among the best and most technologically …

The Intergenerational Effects Of Adverse Childhood Experiences On Children’S Emergency Department Utilization And Depression And Anxiety In South Carolina, Eboni E. Haynes

Theses and Dissertations

Adult exposure to adverse childhood experiences (ACEs) is common in the U.S., with over half of adults reporting exposure to at least one ACE. Childhood trauma is associated with risk factors for premature death, disability, poor physical and mental health, and lower quality of life in adults. Traumatic experiences also influence parenting behaviors later in life, placing offspring at an increased risk of ACE exposure. Few studies have explored the intergenerational effects of ACEs on the health and well-being of offspring. This study sought to identify whether associations existed between caregiver ACE exposures and emergency department (ED) utilization for sick …

Dietary Advanced Glycation End-Products (Ages) And Breast Cancer Risk And Survival, Omonefe Opeyemi Omofuma

Theses and Dissertations

Introduction: Advanced glycation end-products (AGEs) are implicated in the pathogenesis of chronic diseases including cancer. AGEs are produced endogenously and are also consumed from foods. High amounts of AGEs are found in animal products and processed foods, and AGE formation is accelerated during cooking at high temperatures. Using data from the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial (PLCO), we assigned and quantified NƐ-carboxymethyl-lysine (CML)-AGE content in food and investigated the association between dietary AGE intake and breast cancer (BrCa) risk. We assessed whether the risk was modified by race/ethnicity, obesity status, fruit and vegetable intake, BrCa invasiveness …

The Association Of Health Insurance And Prescription Drug Coverage On Cost-Related Non-Adherence And Hospitalization Across Age-Related Groups Of Individuals With Copd, Shamika Martin Walls

Theses and Dissertations

Background: COPD patients have poor adherence to prescribed treatment. Individuals with COPD have higher out-of-pocket treatment cost than individuals without COPD. The significant out of pocket COPD related treatment cost can lead to prescription drug non-adherence especially for individuals without health insurance or prescription drug coverage.

Significance: Since the implementation of Medicare Part D on January 1, 2006, there are no studies that have used national data to evaluate the association of health insurance and prescription drug coverage on cost related non-adherence and hospitalization among individuals 50-64 years old with COPD compared to individuals 65 years and older …

Clinically Integrated Networks: The ‘Magic Pill’ For Improving The Quality Of Health Care?, Kaitlyn Ann Crosby

Theses and Dissertations

The Patient Protection and Affordable Care Act (ACA) served as a paradigm shift to reimburse physicians based on health outcomes or quality of care patients receive in relation to and conscious of the cost to provide care, rather than the traditional fee-for- service (FFS) system. To implement value-based care under the ACA, value-based care models (VBCM), such as patient-centered medical homes (PCMH) and accountable care organizations (ACO), were formed with the ultimate goal to advance quality of care. Among commercially insured populations, clinically integrated networks (CIN) have emerged as another type of VBCM.

Since CINs are the newest type of …

The Relationship Between The Electronic Health Record Patient Portal And Shared Decision Making, Gloria Esoimeme

Theses and Dissertations

Shared decision making (SDM) is a collaborative decision-making style where the patient and the physician are involved in the clinical decision-making process. The goal of this dissertation project was to examine the relationship between the patient portal of an electronic health record (EHR) and SDM.

The SDM process has three main components: information sharing, deliberation and decision making. Patients participate in SDM at varying levels: some patients may prefer to share information and deliberate but leave the final decision making to the provider while others prefer to participate in all the three components of SDM. The patient portal of an …

The Association Of Reimbursement Methods With The Tendency Of Primary Care Physicians To Apply The American Diabetic Association’S Recommendations And Make Referrals To Specialists Among Ambulatory Care Patients In Us Outpatient Settings., Abdullah Alharbi

Theses and Dissertations

We report on a study of the comparison of two reimbursement methods, capitation (CAP) and fee for service (FFS), as well as mixed payment, with respect to the implementation of the ADA recommendations for Diabetes Type 2 (DM2) management and referral rates for specialist health care in the outpatient setting of the United States.

Our purpose in examining these specific topics is to determine whether there is any difference in the implementation of the ADA recommendations or the frequency of referral between visits paid under CAP vs under FFS because both quality and cost of healthcare is affected by these …

Women’S Socio-Economic Empowerment And Uptake Of Hiv Testing In Ethiopia, Dawit Alemu

Theses and Dissertations

Introduction: Sub-Sahran Africa constitute two-thirds of all people living with HIV in the world. HIV infection rate is high in the continent with women comprising 56% of new HIV infections among adults 15 and older. Women 15 to 24 are the most affected constituting 66 % of new infections occurring among this age group. The purpose of this study was to examine how gender power relations between men and women affect health seeking behavior, particularly HIV testing, among Ethiopian women age15 to 49.

Methods: The Ethiopian Demographic and Health Survey (EDHS) from 2016 served as the data source for …

Hiv Care Location: An Evaluation Of Single Versus Multi Facility Utilization Of Hiv/Aids Care Services And Patient Health Outcomes And Clinical Indicators In South Carolina, Melanie Gwynn

Theses and Dissertations

Background: On the HIV/AIDS care continuum, the “retention in care” metric does not distinguish between single-facility (SF) or multi-clinic utilization (MC), also described as HIV care location (or type). SF utilization is vital as it has been linked optimal clinical outcomes among People Living with HIV/AIDS (PLWH). Published research detailing the prevalence of HIV care type and its association with health outcomes/clinical indicators, has been studied only in limited urban settings. Additionally, coinfections such as sexually transmitted infections (STIs), have yet to be evaluated as potential predictive factors for HIV care type.

Methods: A cross-sectional design was used …