Digital Commons Network^™

Harnessing Activin A Adjuvanticity To Promote Antibody Responses To Bg505 Hiv Envelope Trimers, Diane G Carnathan, Kirti Kaushik, Ali H Ellebedy, Chiamaka A Enemuo, Etse H Gebru, Pallavi Dhadvai, Mohammed Ata Ur Rasheed, Matthias G Pauthner, Gabriel Ozorowski, Rafi Ahmed, Dennis R Burton, Andrew B Ward, Guido Silvestri, Shane Crotty, Michela Locci

Open Access Publications

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Formation Of Lung Inducible Bronchus Associated Lymphoid Tissue Is Regulated By Mycobacterium Tuberculosis Expressed Determinants, Micah D Dunlap, Oliver A Prince, Javier Rangel-Moreno, Kimberly A Thomas, Julia M Scordo, Jordi B Torrelles, Jeffery Cox, Adrie J C Steyn, Joaquín Zúñiga, Deepak Kaushal, Shabaana A Khader

Open Access Publications

No abstract provided.

Experiences From The Missouri Antimicrobial Stewardship Collaborative: A Mixed Methods Study, Sena J Sayood, Chinmayi Venkatram, Jason G Newland, Hilary M Babcock, David K Warren, George Turabelidze, Virginia R Mckay, Erin C Rachmiel, Kate Peacock, Tracey Habrock-Bach, Kevin Hsueh, Michael J Durkin

Open Access Publications

We performed a mixed-methods study to evaluate antimicrobial stewardship program (ASP) uptake and to assess variability of program implementation in Missouri hospitals. Despite increasing uptake of ASPs in Missouri, there is wide variability in both the scope and sophistication of these programs.

The Current State Of Antifungal Stewardship Among Pediatric Antimicrobial Stewardship Programs, Lourdes Eguiguren, Jason G Newland, Matthew P Kronman, Adam L Hersh, Jeffrey S Gerber, Grace M Lee, Hayden T Schwenk

Open Access Publications

OBJECTIVE: To characterize the current state of antifungal stewardship practices and perceptions of antifungal use among pediatric antimicrobial stewardship programs (ASPs).

DESIGN: We developed and distributed an electronic survey, which included 17 closed-ended questions about institutional antifungal stewardship practices and perceptions, among pediatric ASPs.

PARTICIPANTS: ASP physicians and pharmacists of 74 hospitals participating in the multicenter Sharing Antimicrobial Reports for Pediatric Stewardship (SHARPS) Collaborative.

RESULTS: We sent surveys to 74 hospitals and received 68 unique responses, for a response rate of 92%. Overall, 63 of 68 the respondent ASPs (93%) reported that they conduct 1 or more antifungal stewardship activities. …

Postdischarge Antibiotic Use For Prophylaxis Following Spinal Fusion, David K Warren, Katelin B Nickel, Jennifer H Han, Pam Tolomeo, Christopher J Hostler, Katherine Foy, Ian R Banks, Victoria J Fraser, Margaret A Olsen, Cdc Prevention Epicenter Program

Open Access Publications

OBJECTIVE: Despite recommendations to discontinue prophylactic antibiotics after incision closure or <24 hours after surgery, prophylactic antibiotics are continued after discharge by some clinicians. The objective of this study was to determine the prevalence and factors associated with postdischarge prophylactic antibiotic use after spinal fusion.

DESIGN: Multicenter retrospective cohort study.

PATIENTS: This study included patients aged ≥18 years undergoing spinal fusion or refusion between July 2011 and June 2015 at 3 sites. Patients with an infection during the surgical admission were excluded.

METHODS: Prophylactic antibiotics were identified at discharge. Factors associated with postdischarge prophylactic antibiotic use were identified using hierarchical generalized linear models.

RESULTS: In total, 8,652 spinal fusion admissions were included. Antibiotics were prescribed at discharge in 289 admissions (3.3%). The most commonly prescribed antibiotics were trimethoprim/sulfamethoxazole (22.1%), cephalexin (18.8%), and ciprofloxacin (17.1%). …

Policies And Practices Of Shea Research Network Hospitals During The Covid-19 Pandemic, Michael S Calderwood, Valerie M Deloney, Deverick J Anderson, Vincent Chi-Chung Cheng, Shruti Gohil, Jennie H Kwon, Lona Mody, Elizabeth Monsees, Valerie M Vaughn, Timothy L Wiemken, Matthew J Ziegler, Eric Lofgren

Open Access Publications

To understand hospital policies and practices as the COVID-19 pandemic accelerated, the Society for Healthcare Epidemiology of America (SHEA) conducted a survey through the SHEA Research Network (SRN). The survey assessed policies and practices around the optimization of personal protection equipment (PPE), testing, healthcare personnel policies, visitors of COVID-19 patients in relation to procedures, and types of patients. Overall, 69 individual healthcare facilities responded in the United States and internationally, for a 73% response rate.

Exposure To Covid-19 Patients Increases Physician Trainee Stress And Burnout, Thomas G. Kannampallil, Charles W. Goss, Bradley A. Evanoff, Jaime R. Strickland, Rebecca P. Mcalister, Jennifer Duncan

Open Access Publications

The coronavirus disease 2019 (COVID-19) pandemic has put considerable physical and emotional strain on frontline healthcare workers. Among frontline healthcare workers, physician trainees represent a unique group-functioning simultaneously as both learners and caregivers and experiencing considerable challenges during the pandemic. However, we have a limited understanding regarding the emotional effects and vulnerability experienced by trainees during the pandemic. We investigated the effects of trainee exposure to patients being tested for COVID-19 on their depression, anxiety, stress, burnout and professional fulfillment. All physician trainees at an academic medical center (n = 1375) were invited to participate in an online survey. We …

Hpv‑Em: An Accurate Hpv Detection And Genotyping Em Algorithm, Matthew J. Inkman, Kay Jayachandran, Thomas M. Ellis, Fiona Ruiz, Michael D. Mclellan, Christopher A. Miller, Yufeng Wu, Akinyemi I. Ojesina, Julie K. Schwarz, Jin Zhang

Open Access Publications

No abstract provided.

Knowledge Base And Perceptions Of Inpatient Providers And Parents About Influenza Vaccination In Hospitalized Children, Shakila Mathew, Mythili Srinivasan

Open Access Publications

No abstract provided.

Cancer In Youth Living With Hiv (Ylwhiv): A Narrative Review Of The Access To Oncological Services Among Ylwhiv And The Role Of Economic Strengthening In Child Health, Ruth G N Katumba, Ozge Sensoy Bahar, Kimberly J Johnson, Fred M Ssewamala

Open Access Publications

Youth Living with HIV/AIDS (YLWHIV) have a higher risk of developing immunodeficiency related illnesses including certain cancers than their general population counterparts of the same age. This narrative review of current available literature describes factors associated with pediatric access to oncological services, and the role economic strengthening could play in improving health outcomes for this vulnerable population. Findings suggest that both HIV-infected and -uninfected children living in low and middle-income countries struggle with access and adherence to cancer treatment and care. Cost of treatment is a major barrier to access and adherence. Asset-building savings programs may increase financial security and …

Impact Of Cytogenetic Abnormalities On Outcomes Of Adult Philadelphia-Negative Acute Lymphoblastic Leukemia After Allogeneic Hematopoietic Stem Cell Transplantation: A Study By The Acute Leukemia Working Committee Of The Center For International Blood And Marrow Transplant Research, Aleksandr Lazaryan, Ravi Vij, Et Al.

Open Access Publications

No abstract provided.

Impact Of Preoperative Chlorhexidine Gluconate (Chg) Application Methods On Preoperative Chg Skin Concentration, Bobby G Warren, Alicia Nelson, David K Warren, Meghan A Baker, Candace Miller, Tracey Habrock, Jahnavi Bongu, Abinav Gowda, Jacob Johnson, Deverick J Anderson, Cdc Prevention Epicenters Program

Open Access Publications

Elective surgical patients routinely bathe with chlorhexidine gluconate (CHG) at home days prior to their procedures. However, the impact of home CHG bathing on surgical site CHG concentration is unclear. We examined 3 different methods of applying CHG and hypothesized that different application methods would impact resulting CHG skin concentration.

Discovery Of A Novel Simian Pegivirus In Common Marmosets (Callithrix Jacchus) With Lymphocytic Enterocolitis, Anna S. Heffron, Michael Lauck, Elizabeth D. Somsen, Elizabeth C. Townsend, Adam L. Bailey, Megan Sosa, Jens Eickhoff, Saverio Capuano Iii, Christina M. Newman, Jens H. Kuhn, Andres Mejia, Heather A. Simmons, David H. O'Connor

Open Access Publications

No abstract provided.

Generation Of Light-Producing Somatic-Transgenic Mice Using Adeno-Associated Virus Vectors, Rajvinder Karda, Jonathan D. Cooper, Et Al.

Open Access Publications

No abstract provided.

Improved Small Blob Detection In 3d Images Using Jointly Constrained Deep Learning And Hessian Analysis, Yanzhe Xu, Teresa Wu, Fei Gao, Jennifer R. Charlton, Kevin M. Bennett

Open Access Publications

No abstract provided.

A Single-Nucleotide Polymorphism In A Plasmodium Berghei Apiap2 Transcription Factor Alters The Development Of Host Immunity, Munir Akkaya, Patrick W Sheehan, Et Al

Open Access Publications

The acquisition of malaria immunity is both remarkably slow and unpredictable. At present, we know little about the malaria parasite genes that influence the host's ability to mount a protective immune response. Here, we show that a single-nucleotide polymorphism (SNP) resulting in a single amino acid change (S to F) in an ApiAP2 transcription factor in the rodent malaria parasite

When Sting Meets Viruses: Sensing, Trafficking And Response, Zhaohe Li, Siqi Cai, Yutong Sun, Li Li, Siyuan Ding, Xin Wang

Open Access Publications

To effectively defend against microbial pathogens, the host cells mount antiviral innate immune responses by producing interferons (IFNs), and hundreds of IFN-stimulated genes (ISGs). Upon recognition of cytoplasmic viral or bacterial DNAs and abnormal endogenous DNAs, the DNA sensor cGAS synthesizes 2',3'-cGAMP that induces STING (stimulator of interferon genes) undergoing conformational changes, cellular trafficking, and the activation of downstream factors. Therefore, STING plays a pivotal role in preventing microbial pathogen infection by sensing DNAs during pathogen invasion. This review is dedicated to the recent advances in the dynamic regulations of STING activation, intracellular trafficking, and post-translational modifications (PTMs) by the …

Myd88-Dependent Influx Of Monocytes And Neutrophils Impairs Lymph Node B Cell Responses To Chikungunya Virus Infection Via Irf5, Nos2 And Nox2, Mary K. Mccarthy, Glennys V. Reynoso, Emma S. Winkler, Matthias Mack, Michael S. Diamond, Heather D. Hickman, Thomas E. Morrison

Open Access Publications

Humoral immune responses initiate in the lymph node draining the site of viral infection (dLN). Some viruses subvert LN B cell activation; however, our knowledge of viral hindrance of B cell responses of important human pathogens is lacking. Here, we define mechanisms whereby chikungunya virus (CHIKV), a mosquito-transmitted RNA virus that causes outbreaks of acute and chronic arthritis in humans, hinders dLN antiviral B cell responses. Infection of WT mice with pathogenic, but not acutely cleared CHIKV, induced MyD88-dependent recruitment of monocytes and neutrophils to the dLN. Blocking this influx improved lymphocyte accumulation, dLN organization, and CHIKV-specific B cell responses. …

To “Heed The Call” Amidst The Covid-19 Pandemic, Andrew W. Kuhn, Francesca R. Coxe, Kyle N. Kunze, David N. Bernstein

Open Access Publications

No abstract provided.

Lung Secretoglobin Scgb1a1 Influences Alveolar Macrophage-Mediated Inflammation And Immunity, Min Xu, Wei Yang, Xuanchuan Wang, Deepak Kumar Nayak

Open Access Publications

Alveolar macrophage (AM) is a mononuclear phagocyte key to the defense against respiratory infections. To understand AM's role in airway disease development, we examined the influence of Secretoglobin family 1a member 1 (SCGB1A1), a pulmonary surfactant protein, on AM development and function. In a murine model, high-throughput RNA-sequencing and gene expression analyses were performed on purified AMs isolated from mice lacking in

Campylobacter Colonization, Environmental Enteric Dysfunction, Stunting, And Associated Risk Factors Among Young Children In Rural Ethiopia: A Cross-Sectional Study From The Campylobacter Genomics And Environmental Enteric Dysfunction (Caged) Project, Dehao Chen, Mark J Manary, Et Al

Open Access Publications

Livestock farming provides a possible mechanism by which smallholder farmers can meet their household need for animal source foods (ASF), which may reduce the risk of stunting. However, direct/indirect contacts with domestic animals may increase colonization by

Mental Distress And Human Rights Violations During Covid-19: A Rapid Review Of The Evidence Informing Rights, Mental Health Needs, And Public Policy Around Vulnerable Populations, Muhammad Rahman, Rabab Ahmed, Ross Brownson, Mary Mckay, Et Al

Open Access Publications

No abstract provided.

Ige And T Cell Reactivity To A Comprehensive Panel Of Cockroach Allergens In Relation To Disease, Anna Pomés, Véronique Schulten, Jill Glesner, Ricardo Da Silva Antunes, Aaron Sutherland, Leonard B Bacharier, Avraham Beigelman, Paula Busse, April Frazier, Alessandro Sette

Open Access Publications

IgE sensitization to cockroach allergens is associated with development of allergic diseases, such as asthma. To understand the relevance of different cockroach allergens for diagnosis and immunotherapy, a comprehensive analysis of IgE antibody levels and T cell reactivity to an expanded set of cockroach allergens and their relationship to disease was performed in a cohort of USA cockroach sensitized patients. IgE antibody levels to recombinant chitinase and hemocyanin were measured for 23 subjects by custom-made ImmunoCAPs and compared with IgE levels to eight cockroach allergens we previously reported for the same cohort.

The Impact Of Sars-Cov-2 In Dementia Across Latin America: A Call For An Urgent Regional Plan And Coordinated Response, Agustin Ibanez, Jorge Llibre-Guerra, Et Al

Open Access Publications

The SARS-CoV-2 global pandemic will disproportionately impact countries with weak economies and vulnerable populations including people with dementia. Latin American and Caribbean countries (LACs) are burdened with unstable economic development, fragile health systems, massive economic disparities, and a high prevalence of dementia. Here, we underscore the selective impact of SARS-CoV-2 on dementia among LACs, the specific strain on health systems devoted to dementia, and the subsequent effect of increasing inequalities among those with dementia in the region. Implementation of best practices for mitigation and containment faces particularly steep challenges in LACs. Based upon our consideration of these issues, we urgently …

Context Is Key: Delineating The Unique Functions Of Ifnα And Ifnβ In Disease, Lindsey E Fox, Marissa C Locke, Deborah J Lenschow

Open Access Publications

Type I interferons (IFNs) are critical effector cytokines of the immune system and were originally known for their important role in protecting against viral infections; however, they have more recently been shown to play protective or detrimental roles in many disease states. Type I IFNs consist of IFNα, IFNβ, IFNϵ, IFNκ, IFNω, and a few others, and they all signal through a shared receptor to exert a wide range of biological activities, including antiviral, antiproliferative, proapoptotic, and immunomodulatory effects. Though the individual type I IFN subtypes possess overlapping functions, there is growing appreciation that they also have unique properties. In …

The Complex Interactions Between Rotavirus And The Gut Microbiota, Andrew Hyoungjin Kim, Michael P Hogarty, Vanessa C Harris, Megan T Baldridge

Open Access Publications

Human rotavirus (HRV) is the leading worldwide cause of acute diarrhea-related death in children under the age of five. RV infects the small intestine, an important site of colonization by the microbiota, and studies over the past decade have begun to reveal a complex set of interactions between RV and the gut microbiota. RV infection can temporarily alter the composition of the gut microbiota and probiotic administration alleviates some symptoms of infection

Blood Biomarkers For Detection Of Brain Injury In Covid-19 Patients, Steven T. Dekosky, Lawrence Lewis, Stacey House, Et Al.

Open Access Publications

No abstract provided.

Consumptive Coagulopathy Of Severe Yellow Fever Occurs Independently Of Hepatocellular Tropism And Massive Hepatic Injury, Adam L. Bailey, Liang-I Kang, Luiz Gonzaga Francisco De Assis Barros D'Elia Zanella, Cássia G. T. Silveira, Yeh-Li Ho, Lander Foquet, Greg Bial, Broc T. Mccune, Amaro Nunes Duarte-Neto, Archana Thomas, Hans-Peter Raué, Kathleen Byrnes, Esper G. Kallas, Mark K. Slifka, Michael S. Diamond

Open Access Publications

No abstract provided.

Prevalence Of Cryptococcal Antigen And Outcomes In People With Human Immunodeficiency Virus In Honduras: A Cohort Study, Julio C. Zuniga-Moya, Jane A. O'Halloran, Andrej Spec, Et Al

Open Access Publications

Background: Cryptococcal meningitis is a major cause of death among people with human immunodeficiency virus (PWH). Cryptococcal antigen (CrAg) testing of asymptomatic patients is an important public health measure to reduce mortality in high-incidence areas. However, limited data exist on CrAg prevalence in Central America.

Methods: We conducted a prospective cohort study at the 2 largest human immunodeficiency virus (HIV) clinics and hospitals in Honduras. Cryptococcal antigen in serum and cerebrospinal fluid was performed in individuals with HIV who had CD4 ≤100 cells/mm

Results: A total of 220 PWH were tested for CrAg, 12.7% (n = 28) of which tested …

Analysis Of Changes In Genes That Lead To Antibiotic Resistance In Klebsiella Pneumoniae 43816, Jasmine R. Anderson

UNF Graduate Theses and Dissertations

Klebsiella pneumoniae is a Gram-negative bacterium responsible for nosocomial infections such as blood stream infections, meningitis, and septicemia. Clinical isolates confirm K. pneumoniae is increasingly antibiotic resistant (AR) making treatment more difficult. While bacterial exposure to antimicrobial substances is a known cause of the AR phenotype, there still exists gaps in knowledge about the genetic changes responsible for this fitness change. The laboratory Klebsiella pneumoniae 43816 (ATCC 43816) was exposed to sublethal concentrations of Cephalothin for a 14-day period. At the end of the experimental treatment, the adapted population acquired clinical antibiotic resistance along with phenotypic and morphological changes. The …