Digital Commons Network^™

Testing Predictability Of Disease Outbreaks With A Simple Model Of Pathogen Biogeography, Tad A. Dallas, Colin J. Carlson, Timothée Poisot

Faculty Publications

© 2019 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. Predicting disease emergence and outbreak events is a critical task for public health professionals and epidemiologists. Advances in global disease surveillance are increasingly generating datasets that are worth more than their component parts for prediction-oriented work. Here, we use a trait-free approach which leverages information on the global community of human infectious diseases to predict the biogeography of pathogens through time. Our approach takes pairwise dissimilarities between countries’ pathogen …

Avian Ecological Succession In The Amazon: A Long-Term Case Study Following Experimental Deforestation, Cameron L. Rutt, Vitek Jirinec

Faculty Publications

Approximately 20% of the Brazilian Amazon has now been deforested, and the Amazon is currently experiencing the highest rates of deforestation in a decade, leading to large-scale land-use changes. Roads have consistently been implicated as drivers of ongoing Amazon deforestation and may act as corridors to facilitate species invasions. Long-term data, however, are necessary to determine how ecological succession alters avian communities following deforestation and whether established roads lead to a constant influx of new species. We used data across nearly 40 years from a large-scale deforestation experiment in the central Amazon to examine the avian colonization process in a …

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 …

Current Understanding Of West Nile Virus Clinical Manifestations, Immune Responses, Neuroinvasion, And Immunotherapeutic Implications, Fengwei Bai, E. Ashley Thompson, Parminder J.S. Vig, A. Arturo Leis

Faculty Publications

West Nile virus (WNV) is the most common mosquito-borne virus in North America. WNV-associated neuroinvasive disease affects all ages, although elderly and immunocompromised individuals are particularly at risk. WNV neuroinvasive disease has killed over 2300 Americans since WNV entered into the United States in the New York City outbreak of 1999. Despite 20 years of intensive laboratory and clinical research, there are still no approved vaccines or antivirals available for human use. However, rapid progress has been made in both understanding the pathogenesis of WNV and treatment in clinical practices. This review summarizes our current understanding of WNV infection in …

Environmentally Persistent Free Radicals: Linking Air Pollution And Poor Respiratory Health?, Peter D. Sly, Stephania A. Cormier, Slawomir Lomnicki, Jeffrey N. Harding, Keith Grimwood, Griffith University

Faculty Publications

No abstract provided.

Detecting Parasite Associations Within Multi-Species Host And Parasite Communities, Tad A. Dallas, Anna Liisa Laine, Otso Ovaskainen

Faculty Publications

© 2019 The Author(s) Published by the Royal Society. All rights reserved. Understanding the role of biotic interactions in shaping natural communities is a long-standing challenge in ecology. It is particularly pertinent to parasite communities sharing the same host communities and individuals, as the interactions among parasites—both competition and facilitation—may have far-reaching implications for parasite transmission and evolution. Aggregated parasite burdens may suggest that infected host individuals are either more prone to infection, or that infection by a parasite species facilitates another, leading to a positive parasite–parasite interaction. However, parasite species may also compete for host resources, leading to the …

Penicillin Allergy Assessment And Skin Testing In The Outpatient Setting, Wesley D. Kufel, Julie Ann Justo, P. Brandon Bookstaver, Lisa M. Avery

Faculty Publications

Penicillin allergies are among of the most commonly reported allergies, yet only 10% of these patients are truly allergic. This leads to potential inadvertent negative consequences for patients and makes treatment decisions challenging for clinicians. Thus, allergy assessment and penicillin skin testing (PST) are important management strategies to reconcile and clarify labeled penicillin allergies. While PST is more common in the inpatient setting where the results will immediately impact antibiotic management, this process is becoming of increasing importance in the outpatient setting. PST in the outpatient setting allows clinicians to proactively de-label and educate patients accordingly so beta-lactam antibiotics may …

The Kaposi’S Sarcoma-Associated Herpesvirus Orf34 Protein Interacts And Stabilizes Hif-2 Via Binding To The Hif-2 Bhlh And Pas Domains, Muzammel Haque, K. G. Kousoulas

Faculty Publications

© 2019 American Society for Microbiology. All Rights Reserved. Hypoxia and hypoxia inducible factors (HIFs) play important roles in the Kaposi’s sarcoma-associated herpesvirus (KSHV) life cycle. KSHV is the causative agent of Kaposi’s sarcoma (KS) and other AIDS-related malignancies. Kaposi’s sarcoma is a highly vascular tumor, which preferentially develops in the lower extremities of the body where blood vessels are often poorly oxygenated. The main cellular responses to hypoxia are mediated mainly by two isoforms of HIF, HIF-1 and HIF-2. HIF-1 and HIF-2 have common as well as distinct functions, although they are similar in structure and function. Previously, we …

Direct Measurement Of Performance: A New Era In Antimicrobial Stewardship, Majdi N. Al-Hasan, Hana Rac Winders, P. Brandon Bookstaver, Julie Ann Justo

Faculty Publications

Penicillin allergies are among of the most commonly reported allergies, yet only 10% of these patients are truly allergic. This leads to potential inadvertent negative consequences for patients and makes treatment decisions challenging for clinicians. Thus, allergy assessment and penicillin skin testing (PST) are important management strategies to reconcile and clarify labeled penicillin allergies. While PST is more common in the inpatient setting where the results will immediately impact antibiotic management, this process is becoming of increasing importance in the outpatient setting. PST in the outpatient setting allows clinicians to proactively de-label and educate patients accordingly so beta-lactam antibiotics may …

Penicillin Allergy Skin Testing In The Inpatient Setting, Julie Ann Justo, Wesley D. Kufel, Lisa Avery, P. Brandon Bookstaver

Faculty Publications

The consequences of a documented penicillin allergy in the medical record are especially troublesome in acutely ill, hospitalized patients. A penicillin allergy label may lead to alternative or second line therapies resulting in adverse drug events, negative clinical outcomes and increased costs. Reconciling penicillin allergies is a necessity to facilitate early, optimal therapy and is a shared responsibility among the healthcare team. Penicillin skin testing (PST) has been utilized successfully in hospitalized patients to de-label erroneous penicillin allergies and optimize antibiotic therapy. This targeted review aims to discuss the practical development and implementation of PST in the inpatient setting. This …

Tumor Microbiome Diversity And Composition Influence Pancreatic Cancer Outcomes, E. Riquelme, Yu Zhang, Liangliang Zhang, M. Montiel, Michelle Zoltan, W. Dong, Pompeyo Quesada, I. Sahin, V. Chandra, Anthony San Lucas, Paul Scheet, Hanwen Xu, Samir M. Hanash, Lei Feng, Jared K. Burks, Kim Anh Do, Christine B. Peterson, Deborah Nejman, Ching Wei D. Tzeng, Michael P. Kim, Cynthia L. Sears

Faculty Publications

Most patients diagnosed with resected pancreatic adenocarcinoma (PDAC) survive less than 5 years, but a minor subset survives longer. Here, we dissect the role of the tumor microbiota and the immune system in influencing long-term survival. Using 16S rRNA gene sequencing, we analyzed the tumor microbiome composition in PDAC patients with short-term survival (STS) and long-term survival (LTS). We found higher alpha-diversity in the tumor microbiome of LTS patients and identified an intra-tumoral microbiome signature (Pseudoxanthomonas-Streptomyces-Saccharopolyspora-Bacillus clausii) highly predictive of long-term survivorship in both discovery and validation cohorts. Through human-into-mice fecal microbiota transplantation (FMT) experiments from STS, LTS, or control …

Amphibious Entrepreneurs And The Origins Of Invention, Kurt Sandholtz, Walter W. Powell

Faculty Publications

In this chapter, we examine entrepreneurs who carry ideas, technologies, values, and assumptions between previously unrelated spheres of economic or cultural activity, and in the process, change the existing order of things. We label such individuals amphibious entrepreneurs and explore their characteristics via four case studies. Their stories suggest a distinct species within the genus of entrepreneur: more pragmatic than heroic, and as likely to invent by not knowing any better as by calculative creation. We discuss their role in creating interstitial spaces, contrast them to other boundary-spanning actors, and identify directions for future research at the intersection of social …

Migration And Mental Health In The Aftermath Of Disaster: Evidence From Mt. Merapi, Indonesia, Jonathan A. Muir, Michael R. Cope, Leslie R. Angeningsih, Jorden E. Jackson, Ralph B. Brown

Faculty Publications

Migration is a standard survival strategy in the context of disasters. While prior studies have examined factors associated with return migration following disasters, an area that remains relatively underexplored is whether moving home to one’s original community results in improved health and well-being compared to other options such as deciding to move on. In the present study, our objective is to explore whether return migration, compared to other migration options, results in superior improvements to mental health. We draw upon data from a cross-sectional pilot study conducted 16 months after a series of volcanic eruptions in Merapi, Indonesia. Using ordinal …

Equine Arteritis Virus Long-Term Persistence Is Orchestrated By Cd8+ T Lymphocyte Transcription Factors, Inhibitory Receptors, And The Cxcl16/Cxcr6 Axis, Mariano Carossino, Nikolaus Osterrieder, Pouya Dini, Theodore S. Kalbfleisch, Alan T. Loynachan, Igor F. Canisso, R. Frank Cook, Peter J. Timoney, Udeni B. R. Balasuriya

Faculty Publications

No abstract provided.

Intervention Design Elements Are Associated With Frontline Health Workers' Performance To Deliver Infant And Young Child Nutrition Services In Bangladesh And Vietnam, Phuong Hong Nguyen, Sunny S. Kim, Lan Mai Tran, Purnima Menon, Edward A. Frongillo

Faculty Publications

Background: Frontline health workers (FLWs) are needed for delivering interventions at scale to reduce maternal and child undernutrition, but low- and middle-income countries often face inadequate FLW performance.

Objectives: We examined whether and how intervention design elements such as training, supervision, and mass media improved FLW performance in delivering nutrition services.

Methods: Survey data were collected in 2010 and 2014 as part of impact evaluations of Alive & Thrive (A&T) interventions to improve infant and young child feeding (IYCF) practices in Bangladesh and Vietnam. FLWs in A&T intensive (A&T-I) areas received specialized IYCF training, job aids, and regular supportive supervision. …

Entomology In The 21st Century: Tackling Insect Invasions, Promoting Advancements In Technology, And Using Effective Science Communication - 2018 Student Debates, Casey Parker, Lina Bernaola, Benjamin W. Lee, Dane Elmquist, Abigail Cohen, Adrian Marshall, James Hepler, Adrian Pekarcik, Emily Justus, Kendall King, Tae Young Lee, Carlos Esquivel, Kayleigh Hauri, Christopher Mccullough, Whitney Hadden, Max Ragozzino, Morgan Roth, James Villegas, Emily Kraus, Michael Becker, Megan Mulcahy, Rui Chen, Priyanka Mittapelly, C. Scott Clem, Rachel Skinner, Tanya Josek, Daniel Pearlstein, Jonathan Tetlie, Anh Tran, Anthony Auletta, Edwin Benkert, Dylan Tussey

Faculty Publications

The 2018 student debates of the Entomological Society of America were held at the Joint Annual Meeting for the Entomological Societies of America, Canada, and British Columbia in Vancouver, BC. Three unbiased introductory speakers and six debate teams discussed and debated topics under the theme aEntomology in the 21st Century: Tackling Insect Invasions, Promoting Advancements in Technology, and Using Effective Science Communication'. This year's debate topics included: 1) What is the most harmful invasive insect species in the world? 2) How can scientists diffuse the stigma or scare factor surrounding issues that become controversial such as genetically modified organisms, agricultural …

Maternal Childhood And Lifetime Traumatic Life Events And Infant Bronchiolitis, Margaret A. Adgent, Omar Elsayed-Ali, Tebeb Gebretsadik, Frances A. Tylavsky, Mehmet Kocak, Stephania A. Cormier, Rosalind J. Wright, Kecia N. Carroll

Faculty Publications

© 2019 John Wiley & Sons Ltd Background: Viral bronchiolitis is a common respiratory infection that often affects term, otherwise healthy infants. A small literature suggests maternal stress during pregnancy is associated with bronchiolitis. However, the association between maternal exposure to lifetime traumatic stress, including traumatic events occurring in childhood or throughout the life course, and bronchiolitis has not been studied previously. Objectives: To investigate the association between maternal exposure to total lifetime and childhood traumatic stress events and infant bronchiolitis. Methods: We studied mother-infant dyads enrolled in a prospective prenatal cohort, recruited 2006-2011, and Tennessee Medicaid. During pregnancy, we …

Repurposing Of Glycine-Rich Proteins In Abiotic And Biotic Stresses In The Lone-Star Tick (Amblyomma Americanum), Rebekah Bullard, Surendra Raj Sharma, Pradipta Kumar Das, Sarah E. Morgan, Shahid Karim

Faculty Publications

Tick feeding requires the secretion of a huge number of pharmacologically dynamic proteins and other molecules which are vital for the formation of the cement cone, the establishment of the blood pool and to counter against the host immune response. Glycine-rich proteins (GRP) are found in many organisms and can function in a variety of cellular processes and structures. The functional characterization of the GRPs in the tick salivary glands has not been elucidated. GRPs have been found to play a role in the formation of the cement cone; however, new evidence suggests repurposing of GRPs in the tick physiology. …

Cardiovascular Factors Moderate The Association Of Infection Burden With Cognitive Function In Young To Middle-Aged U.S. Adults, Bruce L. Brown, Shawn D. Gale, Lance D. Erickson, Dawson W. Hedges, Andrew N. Berrett, Evan L. Thacker

Faculty Publications

Background: Infectious diseases might affect cognitive aging and dementia risk, possibly via neuroinflammation. Similarly, risk factors for cardiovascular and cerebrovascular diseases are associated with cognitive function and dementia. We hypothesized that cardiovascular risk factors moderate the association of exposure to infectious diseases with cognitive function.

Methods: We studied 5662 participants aged 20 to 59 years from the third National Health and Nutrition Examination Survey (1988–1994) in the United States. We used linear regression to investigate whether the Framingham general cardiovascular risk index moderated the association of infection burden based on exposure to eight different infectious diseases with cognitive functioning as …

Torsades De Pointes And Qt Prolongation Associations With Antibiotics: A Pharmacovigilance Study Of The Fda Adverse Event Reporting System, Chengwen Teng Pharm.D., Ph.D., Elizabeth A. Walter, Daryl Kevin S. Gaspar, Obiageri O. Obodozie-Ofoegbu, Christopher R. Frei

Faculty Publications

Introduction: Macrolides, linezolid, imipenem-cilastatin, fluoroquinolones, penicillin combinations, and ceftriaxone are known to be associated with Torsades de pointes/QT prolongation (TdP/QTP). Other antibiotics may also lead to TdP/QTP, but no study has systemically compared TdP/QTP associations for many available antibiotics.

Objectives: The objective of this study was to evaluate the association between TdP/QTP and many available antibiotics using the FDA Adverse Event Report System (FAERS).

Methods: FAERS reports from January 1, 2015 to December 31, 2017 were analyzed. The Medical Dictionary for Regulatory Activities (MedDRA) was used to identify TdP/QTP cases. We calculated the Reporting Odds Ratios (RORs) …

How Health Care Providers Can Use Digital Health Technologies To Inform Human Papillomavirus (Hpv) Decision Making And Promote The Hpv Vaccine Uptake Among Adolescents And Young Adults, Versie Johnson-Mallard, Gabrielle Darville, Rebeccah Mercado, Charkarra Anderson-Lewis, Jann Macinnes

Faculty Publications

High-risk stains of human papillomavirus (HPV) is linked to causing cancer, is highly prevalent, and has increased incidence among adolescents and young adults. However, vaccination rates are low. Health care provider recommendation is the biggest influencer toward vaccine uptake. Since more health care providers are using digital health technologies in their medical practices, this study investigated the feasibility of technology to increase informed decision making. A convenience sample of 210 students completed an online survey. Participants were 18–25 years of age (88%), female (85%), Caucasian (60%), and never been diagnosed with HPV (92.9%). Overwhelmingly, participants owned a smartphone (98.9%) and …

Is Selenoprotein K Required For Borrelia Burgdorferi Infection Within The Tick Vector Ixodes Scapularis?, Deepak Kumar, Monica Embers, Thomas N. Mather, Shahid Karim

Faculty Publications

Background: Tick selenoproteins are involved in regulating oxidative and endoplasmic reticulum stress during prolonged tick feeding on mammalian hosts. How selenoproteins are activated upon tick-borne pathogen infection is yet to be defined.

Methods: To examine the functional role of selenoprotein K in Borrelia burgdorferi infection within the tick host Ixodes scapularis, RNA interference (RNAi)-based gene silencing was performed.

Results: Selenoprotein K is an endoplasmic reticulum (ER)-resident protein and a component of the ERAD complex involved in ER homeostasis. A qRT-PCR assay revealed the significant upregulation of selenogene K (selenoK) expression in B. burgdorferi-infected …

Using Big Data Analytics To Improve Hiv Medical Care Utilisation In South Carolina: A Study Protocol, Bankole Olatosi, Jiajia Zhang, Sharon Weissman, Jianjun Hu, Mohammad Rifat Haider, Xiaoming Li

Faculty Publications

Introduction Linkage and retention in HIV medical care remains problematic in the USA. Extensive health utilisation data collection through electronic health records (EHR) and claims data represent new opportunities for scientific discovery. Big data science (BDS) is a powerful tool for investigating HIV care utilisation patterns. The South Carolina (SC) office of Revenue and Fiscal Affairs (RFA) data warehouse captures individual-level longitudinal health utilisation data for persons living with HIV (PLWH). The data warehouse includes EHR, claims and data from private institutions, housing, prisons, mental health, Medicare, Medicaid, State Health Plan and the department of health and human services. The …

Contrasting Latitudinal Gradients Of Body Size In Helminth Parasites And Their Hosts, Tad Dallas, Alyssa Lois M. Gehman, A. Alonso Aguirre, Sarah A. Budischak, John M. Drake, Maxwell J. Farrell, Ria Ghai, Shan Huang, Ignacio Morales-Castilla

Faculty Publications

© 2019 John Wiley & Sons Ltd Aim: We examined body size scaling relationships for two developmental life stages of parasitic helminths (egg and adult) separately in relationship to latitude (i.e. Bergmann's rule), temperature and temperature seasonality. Given that helminth eggs experience environmental conditions more directly, whereas adults live inside infected host individuals, we predict stronger environmentally driven gradients of body size for eggs than for adults. Location: Global. Time period: Present day. Major taxa studied: Parasitic helminths. Methods: We compiled egg size and adult body size data (both minimum and maximum) for 265 parasitic helminth species from the literature, …

Morphological And Physiological Characteristics Of Endornavirus-Infected And Endornavirus-Free Near-Isogenic Lines Of Bell Pepper (Capsicum Annuum), C. Escalante, R. A. Valverde

Faculty Publications

Plant endornaviruses are persistent viruses that infect plants without causing symptoms. Although endornaviruses have been reported in many economically important plant species, little is known about the effect they have on their hosts. Bell pepper endornavirus (BPEV) has been reported in cultivated peppers (Capsicum spp.). In commercial cultivars of bell pepper (C. annuum) grown in the United States, this virus is found at prevalence rates of 100%. Two bell pepper near-isogenic lines (NILs), one BPEV-infected and the other BPEV-free, were generated and used to investigate the type of symbiotic relationship between BPEV and bell pepper. Selected morphological and physiological characteristics …

Clostridium Difficile Infection Risk With Important Antibiotic Classes: An Analysis Of The Fda Adverse Event Reporting System, Chengwen Teng Pharm.D., Ph.D., Kelly R. Reveles, Obiageri O. Obodozie-Ofoegbu, Christopher R. Frei

Faculty Publications

Introduction: Antibiotic use is an important risk factor for Clostridium difficile infection (CDI). Prior meta-analyses have identified antibiotics and antibiotic classes that pose the greatest risk for CDI; however, CDI epidemiology is constantly changing and contemporary analyses are needed.

Objectives: The objective of this study was to evaluate the association between CDI and important antibiotic classes in recent years using the FDA Adverse Event Report System (FAERS).

Methods: FAERS reports from January 1, 2015 to December 31, 2017 were analyzed. The Medical Dictionary for Regulatory Activities (MedDRA) was used to identify CDI cases. We computed the Reporting Odds Ratios (RORs) …

Comparison Of Methods Used To Estimate The Global Burden Of Disease Related To Undernutrition And Suboptimal Breastfeeding, Alexander C. Mclain, Edward A. Frongillo Jr., Sonja Y. Hess, Ellen G. Piwoz

Faculty Publications

The Global Burden of Disease study (GBD) is an ambitious effort to estimate the disease burden attributable to various risk factors. The results from the GBD are used around the world to monitor the UN established Sustainable Development Goals, set health policies and research strategies, among others. The GBD along with other studies, such as those from the Maternal Child Epidemiology Estimation Group and the Lancet Breastfeeding Series Group, produce estimates of the nutrition-related global burden of disease that exhibit considerable differences. These differences are difficult to reconcile due to the estimation methods, which in recent years have substantially increased …

Perspective: Challenges In Use Of Adolescent Anthropometry For Understanding The Burden Of Malnutrition, Alison Tumilowicz, Ty Beal, Lynnette M. Neufeld, Edward A. Frongillo Jr.

Faculty Publications

Improving nutritional status during adolescence is an opportunity to improve the lives of this generation and the next. Estimating the burden of malnutrition at a population level is fundamental to targeting interventions and measuring progress over time, and for adolescents, we usually depend on survey data and the 2007 WHO Growth Reference to do so. There is substantial risk of misguided conclusions regarding adolescent prevalence estimates, however, when underlying methodological limitations of the indicators and reference are not adequately considered. We use national prevalence estimates among girls and young women 10-22 y of age from the 2014 State of Food …

The Modeling Assessment Of World Vision’S Water, Sanitation, And Hygiene Program In Southern Africa Countries, Malawi, Mozambique, And Zambia: Analyses Using Lives Saved Tool, Chulwoo Park, Armen Martirosyan, Seble Frehywot, Erin Jones, Ashley Labat, Yvonne Tam, Emmanuel Opong

Faculty Publications

Background: Since 2010, the humanitarian aid organization World Vision has implemented a community-based water, sanitation, and hygiene (WASH) program in 76 area development programs (ADPs) for a total target population of 2,831,535 in three Southern Africa countries: Malawi, Mozambique, and Zambia.

Methods: This study was conducted using the Lives Saved Tool (LiST) to analyze the isolated impact of World Vision WASH interventions on child morbidity and mortality during the four-year implementation period from 2010 to 2014. The combined effects of WASH interventions – improved water source, home water connection, improved sanitation, handwashing with soap, hygienic disposal of children’s stools – …

Access Before Evidence And The Price Of The Fda's New Drug Authorities, Erika Lietzan

Faculty Publications

Sometimes drug innovation seems to happen in reverse. Patients enjoy a treatment for years even though the treatment has not been approved by the FDA or proven safe and effective to the FDA's standards. (Sometimes this happens because the FDA has declined to take enforcement action.) The agency encourages companies to perform the work necessary to satisfy the United States "gold standard" for new drug approval, however, by promising exclusivity in the marketplace. When a company does this work, at considerable expense, the results are predictable. The new drug is expensive, and patients and payers (and sometimes policymakers) are outraged. …