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2023

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Autonomic Function Recovery And Physical Activity Levels In Post-Covid-19 Young Adults After Immunization: An Observational Follow-Up Case-Control Study, Ana Paula Coelho Figueira Freire, Shaan Amin, Fabio Santos Lira, Ana Elisa Von Ah Morano, Telmo Pereira, Manuel-João Coelho-E-Silva, Armando Caseiro, Diego Giulliano Destro Christofaro, Vanessa Ribeiro Dos Santos, Osmar Marchioto Júnior, Ricardo Aurino Pinho, Bruna Spolador De Alencar Silva Jan 2023

Autonomic Function Recovery And Physical Activity Levels In Post-Covid-19 Young Adults After Immunization: An Observational Follow-Up Case-Control Study, Ana Paula Coelho Figueira Freire, Shaan Amin, Fabio Santos Lira, Ana Elisa Von Ah Morano, Telmo Pereira, Manuel-João Coelho-E-Silva, Armando Caseiro, Diego Giulliano Destro Christofaro, Vanessa Ribeiro Dos Santos, Osmar Marchioto Júnior, Ricardo Aurino Pinho, Bruna Spolador De Alencar Silva

All Faculty Scholarship for the College of Education and Professional Studies

Coronavirus disease 2019 (COVID-19) has detrimental multi-system consequences. Symptoms may appear during the acute phase of infection, but the literature on long-term recovery of young adults after mild to moderate infection is lacking. Heart rate variability (HRV) allows for the observation of autonomic nervous system (ANS) modulation post-SARS-CoV-2 infection. Since physical activity (PA) can help improve ANS modulation, investigating factors that can influence HRV outcomes after COVID-19 is essential to advancements in care and intervention strategies. Clinicians may use this research to aid in the development of non-medication interventions. At baseline, 18 control (CT) and 20 post-COVID-19 (PCOV) participants were …


Implementation Of Mrsa Nasal Swabs As An Antimicrobial Stewardship Intervention To Decrease Anti-Mrsa Therapy In Covid-19 Infection, Alaina Dekerlegand, Emily Johnston, Britney Mellor, Melanie Rae Schrack, Catherine O’Neal Jan 2023

Implementation Of Mrsa Nasal Swabs As An Antimicrobial Stewardship Intervention To Decrease Anti-Mrsa Therapy In Covid-19 Infection, Alaina Dekerlegand, Emily Johnston, Britney Mellor, Melanie Rae Schrack, Catherine O’Neal

School of Medicine Faculty Publications

In the early stages of treating patients with SARS-CoV-2, limited information was available to guide antimicrobial stewardship interventions. The COVID-19 Task Force and Antimicrobial Stewardship Committee, at a 988-bed academic medical center, implemented the use of methicillin-resistant Staphylococcus aureus (MRSA) nasal swab polymerase chain reaction (PCR) testing to assist with the de-escalation of anti-MRSA therapy in patients with suspected superimposed bacterial pneumonia in COVID-19. A retrospective study was conducted to evaluate the impact of MRSA nasal swab PCR testing on the rate of anti-MRSA therapy between 13 April 2020 and 26 July 2020. A total of 122 patients were included …


Displaying And Delivering Viral Membrane Antigens Via Ww Domain–Activated Extracellular Vesicles, Sengjin Choi, Zhiping Yang, Qiyu Wang, Zhi Qiao, Maoyun Sun, Joshua Wiggins, Shi-Hua Xiang, Quan Lu Jan 2023

Displaying And Delivering Viral Membrane Antigens Via Ww Domain–Activated Extracellular Vesicles, Sengjin Choi, Zhiping Yang, Qiyu Wang, Zhi Qiao, Maoyun Sun, Joshua Wiggins, Shi-Hua Xiang, Quan Lu

Nebraska Center for Virology: Faculty Publications

Membrane proteins expressed on the surface of enveloped viruses are conformational antigens readily recognized by B cells of the immune system. An effective vaccine would require the synthesis and delivery of these native conformational antigens in lipid membranes that preserve specific epitope structures. We have created an extracellular vesicle–based technology that allows viral membrane antigens to be selectively recruited onto the surface of WW domain–activated extracellular vesicles (WAEVs). Budding of WAEVs requires secretory carrier-associated membrane protein 3, which through its proline-proline-alanine-tyrosine motif interacts with WW domains to recruit fused viral membrane antigens onto WAEVs. Immunization with influenza and HIV viral …


Displaying And Delivering Viral Membrane Antigens Via Ww Domain–Activated Extracellular Vesicles, Sengjin Choi, Zhiping Yang, Qiyu Wang, Zhi Qiao, Maoyun Sun, Joshua Wiggins, Shi-Hua Xiang, Quan Lu Jan 2023

Displaying And Delivering Viral Membrane Antigens Via Ww Domain–Activated Extracellular Vesicles, Sengjin Choi, Zhiping Yang, Qiyu Wang, Zhi Qiao, Maoyun Sun, Joshua Wiggins, Shi-Hua Xiang, Quan Lu

Nebraska Center for Virology: Faculty Publications

Membrane proteins expressed on the surface of enveloped viruses are conformational antigens readily recognized by B cells of the immune system. An effective vaccine would require the synthesis and delivery of these native conformational antigens in lipid membranes that preserve specific epitope structures. We have created an extracellular vesicle–based technology that allows viral membrane antigens to be selectively recruited onto the surface of WW domain–activated extracellular vesicles (WAEVs). Budding of WAEVs requires secretory carrier-associated membrane protein 3, which through its proline-proline-alanine-tyrosine motif interacts with WW domains to recruit fused viral membrane antigens onto WAEVs. Immunization with influenza and HIV viral …


Displaying And Delivering Viral Membrane Antigens Via Ww Domain–Activated Extracellular Vesicles, Sengjin Choi, Zhiping Yang, Qiyu Wang, Zhi Qiao, Maoyun Sun, Joshua Wiggins, Shi-Hua Xiang, Quan Lu Jan 2023

Displaying And Delivering Viral Membrane Antigens Via Ww Domain–Activated Extracellular Vesicles, Sengjin Choi, Zhiping Yang, Qiyu Wang, Zhi Qiao, Maoyun Sun, Joshua Wiggins, Shi-Hua Xiang, Quan Lu

School of Veterinary and Biomedical Sciences: Faculty Publications

Membrane proteins expressed on the surface of enveloped viruses are conformational antigens readily recognized by B cells of the immune system. An effective vaccine would require the synthesis and delivery of these native conformational antigens in lipid membranes that preserve specific epitope structures. We have created an extracellular vesicle–based technology that allows viral membrane antigens to be selectively recruited onto the surface of WW domain–activated extracellular vesicles (WAEVs). Budding of WAEVs requires secretory carrier-associated membrane protein 3, which through its proline-proline-alanine-tyrosine motif interacts with WW domains to recruit fused viral membrane antigens onto WAEVs. Immunization with influenza and HIV viral …


Vaccines Against Group B Coxsackieviruses And Their Importance, Kiruthiga Mone, Ninaad Lasrado, Meghna Sur, Jay Reddy Jan 2023

Vaccines Against Group B Coxsackieviruses And Their Importance, Kiruthiga Mone, Ninaad Lasrado, Meghna Sur, Jay Reddy

School of Veterinary and Biomedical Sciences: Faculty Publications

The group B coxsackieviruses (CVBs) exist in six serotypes (CVB1 to CVB6). Disease associations have been reported for most serotypes, and multiple serotypes can cause similar diseases. For example, CVB1, CVB3, and CVB5 are generally implicated in the causation of myocarditis, whereas CVB1 and CVB4 could accelerate the development of type 1 diabetes (T1D). Yet, no vaccines against these viruses are currently available. In this review, we have analyzed the attributes of experimentally tested vaccines and discussed their merits and demerits or limitations, as well as their impact in preventing infections, most importantly myocarditis and T1D.


Self-Management By Adolescents And Young Adults Following A Stem Cell Transplant, Caroline F. Morrison Jan 2023

Self-Management By Adolescents And Young Adults Following A Stem Cell Transplant, Caroline F. Morrison

Dissertations

A grounded theory study was conducted to better understand the process AYA use to manage their care following a SCT. Specific aims included: 1) to explore self-management facilitators, barriers, processes and behaviors within individual, family, community and healthcare system domains using the pediatric self-management framework to develop initial interview guides; 2) to describe how AYA manage their care regimen post HSCT; and 3) to describe rates of oral medication adherence for AYA post HSCT and how they relate to patterns of self-management.


Harmful Speech And The Covid-19 Penumbra, Kenneth Grad, Amanda Turnbull Jan 2023

Harmful Speech And The Covid-19 Penumbra, Kenneth Grad, Amanda Turnbull

Canadian Journal of Law and Technology

We make two central claims in this essay. First, the themes of malinformation have remained remarkably consistent across pandemics. What has changed is only the manner of their spread through evolving technologies and globalization. Thus, as with pandemic preparedness more generally, our failure to take proactive measures reflects a failure to heed the lessons of the past. Second, we argue that the COVID-19 pandemic presents a unique opportunity to tackle online falsehoods and mitigate their impact in the future.

We proceed in three parts. Part one addresses the harmful speech that inevitably follows in pandemic’s wake. We illustrate this through …


Digital Surveillance Of Covid-19: Privacy And Equity Considerations, Elaine Gibson, Cal Dewolfe, Ilana Luther Jan 2023

Digital Surveillance Of Covid-19: Privacy And Equity Considerations, Elaine Gibson, Cal Dewolfe, Ilana Luther

Canadian Journal of Law and Technology

In this paper, we examine the potentially deleterious effects of surveillance on vulnerable Canadians. A wide range of digital surveillance technologies have either been deployed or considered for deployment both in Canada and around the world in response to the international emergency created by the COVID-19 pandemic. Some of these technologies are highly effective in predicting or identifying individual cases and/or outbreaks; others assist in tracing contacts or enforcing compliance with quarantine and isolation measures. However, there are necessarily risks associated with their deployment. First are the infringements on privacy rights of citizens and groups. Second, these technologies run the …


A Survey With Interventional Components Delivered On Tablet Devices Versus Usual Care To Increase Pre-Exposure Prophylaxis Uptake Among Cisgender Black Women: A Pilot Randomized Controlled Trial, Mandy J Hill, Angela M Heads, Robert Suchting, Angela L Stotts Jan 2023

A Survey With Interventional Components Delivered On Tablet Devices Versus Usual Care To Increase Pre-Exposure Prophylaxis Uptake Among Cisgender Black Women: A Pilot Randomized Controlled Trial, Mandy J Hill, Angela M Heads, Robert Suchting, Angela L Stotts

Faculty, Staff and Student Publications

BACKGROUND: Cisgender (cis) Black women in the USA are more likely to become HIV positive during their lifetime than other women. We developed and implemented a behavioral intervention, Increasing PrEP (iPrEP), the first pilot randomized controlled trial (RCT) aimed at motivating cis Black women to be willing to use PrEP for HIV prevention and attend an initial PrEP clinic visit following an emergency department visit.

METHODS: Eligible participants were Black cisgender women ages 18-55 years who acknowledged recent condomless sex and substance use. Participants were randomized to iPrEP or usual care (UC). iPrEP is a survey-based intervention designed to raise …


Covid-19 Policies & Their Impact On Housing And Health Outcomes In The City Of Chicago, Khushbu Patel Jan 2023

Covid-19 Policies & Their Impact On Housing And Health Outcomes In The City Of Chicago, Khushbu Patel

DePaul Journal of Health Care Law

The COVID-19 mandates and policies that were implemented by both the state of Illinois and the City of Chicago, such as the eviction moratorium, dramatically improved health outcomes by alleviating the financial stress of many households. Discussing social determinants of health and evaluating the impact that each social determinant had on housing and health outcomes allows for an in-depth look at the overall concept of housing in Chicago and the health outcomes of low-income individuals. Comparing the housing laws in place before COVID-19 at the federal, state, and local levels allows for analyzing the impact of the COVID-19 policies and …


Diel Activity Patterns Of Vector Mosquito Species In The Urban Environment: Implications For Vector Control Strategies, André Barretto B. Wilke, Adequate Mhlanga, Allisandra G. Kummer, Chalmers Vasquez, Maday Moreno, William D. Petrie, Art Rodriguez, Christopher Vitek, Gabriel L. Hamer, John-Paul Mutebi, Marco Ajelli Jan 2023

Diel Activity Patterns Of Vector Mosquito Species In The Urban Environment: Implications For Vector Control Strategies, André Barretto B. Wilke, Adequate Mhlanga, Allisandra G. Kummer, Chalmers Vasquez, Maday Moreno, William D. Petrie, Art Rodriguez, Christopher Vitek, Gabriel L. Hamer, John-Paul Mutebi, Marco Ajelli

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Mathematical models have been widely used to study the population dynamics of mosquitoes as well as to test and validate the effectiveness of arbovirus outbreak responses and mosquito control strategies. The objective of this study is to assess the diel activity of mosquitoes in Miami-Dade, Florida, and Brownsville, Texas, the most affected areas during the Zika outbreak in 2016–2017, and to evaluate the effectiveness of simulated adulticide treatments on local mosquito populations. To assess variations in the diel activity patterns, mosquitoes were collected hourly for 96 hours once a month from May through November 2019 in Miami-Dade County, Florida, and …


Beyond The Usual Suspects: Emerging Uropathogens In The Microbiome Age, Robert B. Moreland, Brian I. Choi, Wilson Geaman, Caroline Gonzalez, Baylie R. Hochstedler-Kramer, Jerrin John, Jacob Kaindl, Nikita Kesav, Jyoti Lamichhane, Luke Lucio, Malika Saxena, Aditi Sharma, Lana Tinawi, Michael E. Vanek, Catherine Putonti, Linda Brubaker, Alan J. Wolfe Jan 2023

Beyond The Usual Suspects: Emerging Uropathogens In The Microbiome Age, Robert B. Moreland, Brian I. Choi, Wilson Geaman, Caroline Gonzalez, Baylie R. Hochstedler-Kramer, Jerrin John, Jacob Kaindl, Nikita Kesav, Jyoti Lamichhane, Luke Lucio, Malika Saxena, Aditi Sharma, Lana Tinawi, Michael E. Vanek, Catherine Putonti, Linda Brubaker, Alan J. Wolfe

Biology: Faculty Publications and Other Works

The advent of sensitive enhanced culture (metaculturomic) and culture-independent DNA-based (metagenomic) methods has revealed a rich collection of microbial species that inhabit the human urinary tract. Known as the urinary microbiome, this community of microbes consists of hundreds of distinct species that range across the entire phylogenetic spectrum. This new knowledge clashes with standard clinical microbiology laboratory methods, established more than 60 years ago, that focus attention on a relatively small subset of universally acknowledged uropathogens. Increasing reports support the hypothesis that this focus is too narrow. Single uropathogen reports are common in women with recurrent urinary tract infection (UTI), …


Gut Microbiota And Microbiota-Derived Metabolites Promotes Endometriosis, Sangappa B Chadchan, Sumanta K Naik, Pooja Popli, Chandni Talwar, Satwikreddy Putluri, Chandrasekhar R Ambati, Michael A Lint, Andrew L Kau, Christina L Stallings, Ramakrishna Kommagani Jan 2023

Gut Microbiota And Microbiota-Derived Metabolites Promotes Endometriosis, Sangappa B Chadchan, Sumanta K Naik, Pooja Popli, Chandni Talwar, Satwikreddy Putluri, Chandrasekhar R Ambati, Michael A Lint, Andrew L Kau, Christina L Stallings, Ramakrishna Kommagani

Faculty, Staff and Students Publications

Endometriosis is a pathological condition of the female reproductive tract characterized by the existence of endometrium-like tissue at ectopic sites, affecting 10% of women between the age 15 and 49 in the USA. However, currently there is no reliable non-invasive method to detect the presence of endometriosis without surgery and many women find hormonal therapy and surgery as ineffective in avoiding the recurrences. There is a lack of knowledge on the etiology and the factors that contribute to the development of endometriosis. A growing body of recent evidence suggests an association between gut microbiota and endometriosis pathophysiology. However, the direct …


Gut Microbiota And Microbiota-Derived Metabolites Promotes Endometriosis, Sangappa B Chadchan, Sumanta K Naik, Pooja Popli, Chandni Talwar, Satwikreddy Putluri, Chandrasekhar R Ambati, Michael A Lint, Andrew L Kau, Christina L Stallings, Ramakrishna Kommagani Jan 2023

Gut Microbiota And Microbiota-Derived Metabolites Promotes Endometriosis, Sangappa B Chadchan, Sumanta K Naik, Pooja Popli, Chandni Talwar, Satwikreddy Putluri, Chandrasekhar R Ambati, Michael A Lint, Andrew L Kau, Christina L Stallings, Ramakrishna Kommagani

Faculty, Staff and Students Publications

Endometriosis is a pathological condition of the female reproductive tract characterized by the existence of endometrium-like tissue at ectopic sites, affecting 10% of women between the age 15 and 49 in the USA. However, currently there is no reliable non-invasive method to detect the presence of endometriosis without surgery and many women find hormonal therapy and surgery as ineffective in avoiding the recurrences. There is a lack of knowledge on the etiology and the factors that contribute to the development of endometriosis. A growing body of recent evidence suggests an association between gut microbiota and endometriosis pathophysiology. However, the direct …


Gut Microbiota And Microbiota-Derived Metabolites Promotes Endometriosis, Sangappa B Chadchan, Sumanta K Naik, Pooja Popli, Chandni Talwar, Satwikreddy Putluri, Chandrasekhar R Ambati, Michael A Lint, Andrew L Kau, Christina L Stallings, Ramakrishna Kommagani Jan 2023

Gut Microbiota And Microbiota-Derived Metabolites Promotes Endometriosis, Sangappa B Chadchan, Sumanta K Naik, Pooja Popli, Chandni Talwar, Satwikreddy Putluri, Chandrasekhar R Ambati, Michael A Lint, Andrew L Kau, Christina L Stallings, Ramakrishna Kommagani

2020-Current year OA Pubs

Endometriosis is a pathological condition of the female reproductive tract characterized by the existence of endometrium-like tissue at ectopic sites, affecting 10% of women between the age 15 and 49 in the USA. However, currently there is no reliable non-invasive method to detect the presence of endometriosis without surgery and many women find hormonal therapy and surgery as ineffective in avoiding the recurrences. There is a lack of knowledge on the etiology and the factors that contribute to the development of endometriosis. A growing body of recent evidence suggests an association between gut microbiota and endometriosis pathophysiology. However, the direct …


Proceedings Of The 22nd International Conference Of Public Health Sciences Jan 2023

Proceedings Of The 22nd International Conference Of Public Health Sciences

Journal of Health Research

Chulalongkorn University has its own vision to be a world-class national university that generates the knowledge and innovation necessary for the creative and sustainable transformation of Thai society. In order to accomplish this vision, Chulalongkorn University has been supporting every Faculties, Institutes, Colleges and etc. within the university to conduct academic activities including in-class teaching, research, and conferences as we have today. The College of Public Health Sciences is the academic entity that emphasizes the teaching-learning on graduate level in the field of public health and public health sciences. It utilizes a mechanism to combine research both in public health …


2023-01-24_Michiganoverview_Covidsymptoms, Michigan Department Of Health & Human Services Jan 2023

2023-01-24_Michiganoverview_Covidsymptoms, Michigan Department Of Health & Human Services

Michigan COVID-19 Syndromic Surveillance System Data

The Syndromic Surveillance System Data report was obtained from Michigan's COVID-19 dashboard, from under the link "​Coronavirus Symptoms": https://www.michigan.gov/coronavirus/stats/coronavirus-symptoms. Data was compiled by the Michigan Department of Health and Human Services (MDHHS). The information was updated twice a week on Mondays and Thursdays.

Syndromic Surveillance System data is obtained from approximately 216 facilities participating in syndromic surveillance (139 Emergency Departments (ED), 77 Urgent Cares) across the State of Michigan. The reporting is based on individuals who present at EDs and may not be representative of the overall population. The coronavirus-like symptoms query searches visit free-text (chief complaint, triage notes, …


Ancient Pathogens Provide A Window Into Health And Well-Being, Cecil M. Lewis Jr., Mercy Y. Akinyi, Sharon Dewitte, Anne C. Stone Jan 2023

Ancient Pathogens Provide A Window Into Health And Well-Being, Cecil M. Lewis Jr., Mercy Y. Akinyi, Sharon Dewitte, Anne C. Stone

Faculty Publications

This perspective draws on the record of ancient pathogen genomes and microbiomes illuminating patterns of infectious disease over the course of the Holocene in order to address the following question. How did major changes in living circumstances involving the transition to and intensification of farming alter pathogens and their distributions? Answers to this question via ancient DNA research provide a rapidly expanding picture of pathogen evolution and in concert with archaeological and historical data, give a temporal and behavioral context for heath in the past that is relevant for challenges facing the world today, including the rise of novel pathogens.


The Human Gut Microbiome, Tammy J. Ladue Jan 2023

The Human Gut Microbiome, Tammy J. Ladue

InterProfessional Education Research and Scholarship

Although the gut microbiome has been known for many years, it wasn’t until the mid-1970’s that a relationship was hypothesized in medical journals. With the advent of the Human Genome Project in 2001 (Adak & Khan, 2019) further investigation into the types and relationship of the microbes in the GI tract were seriously studied.

Utilizing DNA & RNA tracking and culture techniques found during the Genome Project, more information was found on the Gut Microbiome. It was as of 2017 that the knowledge on the Microbiome began to show promise. It has been speculated that the GI tract has approximately …


Covid-19 Vaccination Up-Take In Three Districts Of Nepal, Tara Nath Pokhrel, Kshitij Karki, Bhim Singh Tinkari, Shyam Raj Upreti, Shikha Upadhyaya Khatiwada, Rakchya Amatya, John Zervos, Linda M. Kaljee, Kate Zenlea, Tyler Prentiss, Gina Maki, Anita B. Shallal, Seema Joshi, Marcus J. Zervos, Katie Latack, Bidushi Pokhrel, Alina Upreti, Bibek Kumar Lal, Sagar Dahal, Jhalak Sharma Gautam, Dipendra Raman Singh, Deepak C. Bajracharya Jan 2023

Covid-19 Vaccination Up-Take In Three Districts Of Nepal, Tara Nath Pokhrel, Kshitij Karki, Bhim Singh Tinkari, Shyam Raj Upreti, Shikha Upadhyaya Khatiwada, Rakchya Amatya, John Zervos, Linda M. Kaljee, Kate Zenlea, Tyler Prentiss, Gina Maki, Anita B. Shallal, Seema Joshi, Marcus J. Zervos, Katie Latack, Bidushi Pokhrel, Alina Upreti, Bibek Kumar Lal, Sagar Dahal, Jhalak Sharma Gautam, Dipendra Raman Singh, Deepak C. Bajracharya

Infectious Diseases Articles

Vaccine hesitancy during the COVID-19 pandemic continues to be an issue in terms of global efforts to decrease transmission rates. Despite high demand for the vaccines in Nepal, the country still contends with challenges related to vaccine accessibility, equitable vaccine distribution, and vaccine hesitancy. Study objectives were to identify: 1) up-take and intention for use of COVID-19 vaccines, 2) factors associated with vaccine up-take, and 3) trusted communication strategies about COVID-19 and the vaccines. A quantitative survey was implemented in August and September 2021 through an initiative at the Nepali Ministry of Health and Population Department of Health Services, Family …


Covid-19 Newsletter (Vol. 153), Center For Disaster Medicine, New York Medical College Jan 2023

Covid-19 Newsletter (Vol. 153), Center For Disaster Medicine, New York Medical College

COVID-19 Newsletter

No abstract provided.


Multisite Detection Of Tn1549-Mediated Vanb Vancomycin Resistance In Multidrug-Resistant Enterococcus Faecalis St6 In Texas And Florida, Shelby R Simar, Truc T Tran, Kirsten B Rydell, Diana Panesso, German A Contreras, Jose M Munita, Renzo O Cifuentes, Lilian M Abbo, Pranoti Sahasrabhojane, An Q Dinh, Dierdre B Axell-House, Tor Savidge, Samuel A Shelburne, Blake M Hanson, Cesar A Arias Jan 2023

Multisite Detection Of Tn1549-Mediated Vanb Vancomycin Resistance In Multidrug-Resistant Enterococcus Faecalis St6 In Texas And Florida, Shelby R Simar, Truc T Tran, Kirsten B Rydell, Diana Panesso, German A Contreras, Jose M Munita, Renzo O Cifuentes, Lilian M Abbo, Pranoti Sahasrabhojane, An Q Dinh, Dierdre B Axell-House, Tor Savidge, Samuel A Shelburne, Blake M Hanson, Cesar A Arias

Faculty, Staff and Student Publications

In the United States, vanB-mediated resistance in enterococci is rare. We characterized three sequence type (ST) 6, vancomycin-resistant Enterococcus faecalis isolates causing bacteremia in unique patients in spatiotemporally distinct settings. Isolates were recovered between 2018 and 2020 in two cities in the United States (Houston, TX; Miami, FL). The isolates harbored the vanB operon on a chromosomally located Tn1549 transposon, and epidemiological data suggested multiple introductions of the vanB gene cluster into ST6 E. faecalis.


A Novel Defined Tlr3 Agonist As An Effective Vaccine Adjuvant, Kwang Hyun Ko, Seung Bin Cha, Seung-Hwan Lee, Hyun Shik Bae, Chul Soo Ham, Min-Gyu Lee, Dong-Ho Kim, Seung Hyun Han Jan 2023

A Novel Defined Tlr3 Agonist As An Effective Vaccine Adjuvant, Kwang Hyun Ko, Seung Bin Cha, Seung-Hwan Lee, Hyun Shik Bae, Chul Soo Ham, Min-Gyu Lee, Dong-Ho Kim, Seung Hyun Han

Faculty, Staff and Student Publications

Synthetic double-stranded RNA analogs recognized by Toll-like receptor 3 (TLR3) are an attractive adjuvant candidate for vaccines, especially against intracellular pathogens or tumors, because of their ability to enhance T cell and antibody responses. Although poly(I:C) is a representative dsRNA with potent adjuvanticity, its clinical application has been limited due to heterogeneous molecular size, inconsistent activity, poor stability, and toxicity. To overcome these limitations, we developed a novel dsRNA-based TLR3 agonist named NexaVant (NVT) by using PCR-coupled bidirectional in vitro transcription. Agarose gel electrophoresis and reverse phase-HPLC analysis demonstrated that NVT is a single 275-kDa homogeneous molecule. NVT appears to …


Going Back In Time: Increasing Penicillin Susceptibility Among Methicillin-Susceptible Staphylococcus Aureus Osteoarticular Infections In Children, J Chase Mcneil, Lauren M Sommer, Jesus G Vallejo, Mary Boyle, Kristina G Hulten, Sheldon L Kaplan, Stephanie A Fritz Jan 2023

Going Back In Time: Increasing Penicillin Susceptibility Among Methicillin-Susceptible Staphylococcus Aureus Osteoarticular Infections In Children, J Chase Mcneil, Lauren M Sommer, Jesus G Vallejo, Mary Boyle, Kristina G Hulten, Sheldon L Kaplan, Stephanie A Fritz

Faculty, Staff and Students Publications

In the late 1940s to 1950s, Staphylococcus aureus isolates first-gained resistance to penicillin. Recently, some centers have described an increase in the proportion of methicillin susceptible S. aureus (MSSA) which are also susceptible to penicillin (PSSA). There are little data on the frequency of PSSA infections in children. We investigated the prevalence of penicillin susceptibility among pediatric MSSA acute hematogenous osteoarticular infection (OAI) isolates. MSSA OAI isolates were obtained through surveillance studies at Texas Children’s and St. Louis Children’s Hospitals from January 2011 to December 2019. All isolates underwent PCR for blaZ β-lactamase, PVL genes and agr group. All blaZ …


E. Coli Catheter-Associated Urinary Tract Infections Are Associated With Distinctive Virulence And Biofilm Gene Determinants, Zongsen Zou, Robert F. Potter, William H. Mccoy, John A. Wildenthal, George L. Katumba, Peter J. Mucha, Gautam Dantas, Jeffrey P. Henderson Jan 2023

E. Coli Catheter-Associated Urinary Tract Infections Are Associated With Distinctive Virulence And Biofilm Gene Determinants, Zongsen Zou, Robert F. Potter, William H. Mccoy, John A. Wildenthal, George L. Katumba, Peter J. Mucha, Gautam Dantas, Jeffrey P. Henderson

2020-Current year OA Pubs

Urinary catheterization facilitates urinary tract colonization by E. coli and increases infection risk. Here, we aimed to identify strain-specific characteristics associated with the transition from colonization to infection in catheterized patients. In a single-site study population, we compared E. coli isolates from patients with catheter-associated asymptomatic bacteriuria (CAASB) to those with catheter-associated urinary tract infection (CAUTI). CAUTI isolates were dominated by a phylotype B2 subclade containing the multidrug-resistant ST131 lineage relative to CAASB isolates, which were phylogenetically more diverse. A distinctive combination of virulence-associated genes was present in the CAUTI-associated B2 subclade. Catheter-associated biofilm formation was widespread among isolates and …


Defining Variability In Evaluation And Management Of Children With Chronic Osteomyelitis, Ganga S. Moorthy, Angelique E. Boutzoukas, Daniel K. Benjamin, Philip M. Polgreen, Susan E. Beekmann, John S. Bradley, Walter Dehority Jan 2023

Defining Variability In Evaluation And Management Of Children With Chronic Osteomyelitis, Ganga S. Moorthy, Angelique E. Boutzoukas, Daniel K. Benjamin, Philip M. Polgreen, Susan E. Beekmann, John S. Bradley, Walter Dehority

Pediatrics Research and Scholarship

Pediatric chronic osteomyelitis is a rare, debilitating condition lacking management guidelines. In a national survey of 162 pediatric infectious disease physicians through the Emerging Infections Network, tremendous variability in diagnostic approaches and management were noted, highlighting a need for prospective study to better define the spectrum of pathogens and disease.


Impact Of High-Fidelity Simulation On Confidence Level Of Nursing Students In The Care Of Covid-19 Patients, Faith A. Paine Jan 2023

Impact Of High-Fidelity Simulation On Confidence Level Of Nursing Students In The Care Of Covid-19 Patients, Faith A. Paine

Dissertations

The COVID-19 pandemic impacted the education of nursing students across the world. Nursing students were unable to care for patients with COVID-19 at the beginning and potentially throughout nursing school depending on the facility and nursing school restrictions. It was not known how the participation in a high-fidelity simulation will impact the confidence level of nursing students in the care of patients with COVID-19. A mixed methods phenomenological qualitative and survey design was utilized to determine the confidence level of nursing students after participation in a high-fidelity simulation of a patient diagnosed with COVID-19.


The Impacts Of Immune Challenges On Fish Behavior And Physiology, Teisha King Jan 2023

The Impacts Of Immune Challenges On Fish Behavior And Physiology, Teisha King

LSU Doctoral Dissertations

For species living in dominance hierarchies, social rank dictates access to resources and often contributes to reproductive success. To ensure survival, individuals constantly evaluate trade- offs between crucial biological systems, like the reproductive and immune systems, depending on their social rank and physiological state. Little is known about how social species balance interactions between immune system function, fluctuations in social status and reproductive fitness, and the performance of behaviors necessary for maintaining social status when sick, particularly in fishes, the largest and most diverse group of vertebrates. My dissertation research uses a whole animal approach to examine how physiological profiles …


Experiences Of Covid-19 Recovered Patients: A Qualitative Case Study From A Hotspot In Saudi Arabia, Abdulrahman Alhajjaji Alhajjaji, Ahmad Kurdi, Sultan Faqeh, Safwan Alansari, Akrm Abdulaziz, Moayad Allihyani, Omar Almaghamsi, Ejaz Cheema, Majid Ali Jan 2023

Experiences Of Covid-19 Recovered Patients: A Qualitative Case Study From A Hotspot In Saudi Arabia, Abdulrahman Alhajjaji Alhajjaji, Ahmad Kurdi, Sultan Faqeh, Safwan Alansari, Akrm Abdulaziz, Moayad Allihyani, Omar Almaghamsi, Ejaz Cheema, Majid Ali

The Qualitative Report

It is difficult to maintain social distancing in highly populated areas where people live in proximity. This study aimed to qualitatively explore experiences of COVID-19 recovered patients residing in one such area. We employed semi-structured face-to-face interviews. An interview guide was developed, validated, piloted, and minor changes were made. People living in this area, above 18 years of age, and recovered from COVID-19 were approached for the interviews, 11 of them were recruited to be interviewed, and their verbal informed consent was audio recorded. The interviews were conducted in the Arabic language in a semi-private area of the community center, …