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Articles 91 - 120 of 7957
Full-Text Articles in Entire DC Network
Environmental Mercury Alters Immune Pathways Linked To Autoimmune Risk In Mice Mirroring Humans, Maurgan Lee, Paul Stemmer, Randall Gill, Allen Rosenspire, Anil Aranha, Heather Gibson
Environmental Mercury Alters Immune Pathways Linked To Autoimmune Risk In Mice Mirroring Humans, Maurgan Lee, Paul Stemmer, Randall Gill, Allen Rosenspire, Anil Aranha, Heather Gibson
Medical Student Research Symposium
Background and Purpose: Mercury is a pervasive environmental contaminant, and human epidemiologic studies have linked chronic low-level exposure to increased autoimmune disease-risk. Dysregulated lymphocyte activation and impaired signaling tolerance are central mechanisms in human autoimmunity. Protein phosphorylation governs lymphocyte differentiation and function, alterations in phosphoproteomic networks may represent a signature of immune disruption. This study evaluates how low dose mercury exposure modifies B and T cell abundance and intracellular signaling patterns in BALB/c and Diversity Outbred (DO) mice.
Methods: BALB/c and DO mice were exposed to low dose HgCl2 in their water for two weeks or provided standard water controls. …
In-Use Stability And Device Compatibility Define Clinically Actionable Handling Limits For A Gmp-Produced Attenuated Listeria Monocytogenes Vaccine Expressing Gucy2c, Jagmohan Singh, Taranjot Johar, Vannessa Scully, Scott A. Waldman, Babar Bashir, Adam E. Snook
In-Use Stability And Device Compatibility Define Clinically Actionable Handling Limits For A Gmp-Produced Attenuated Listeria Monocytogenes Vaccine Expressing Gucy2c, Jagmohan Singh, Taranjot Johar, Vannessa Scully, Scott A. Waldman, Babar Bashir, Adam E. Snook
Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers
Background: Live-attenuated Listeria monocytogenes (Lm) vectors are a clinically validated cancer immunotherapy platform, but translation requires reproducible, clinically realistic workflows for dose preparation and infusion. For live bacterial products, in-use stability and device compatibility can drive dose variability through adsorption, settling, and device losses. Methods: We developed and GMP-manufactured an attenuated Lm vaccine expressing human GUCY2C (Lm-GUCY2C) and performed translational characterization, including construct verification and immunogenicity readouts, and defined the administration-focused in-use stability and device compatibility. Post-thaw stability was assessed in primary cryovials and during preparation and delivery from 250 mL saline infusion bags using standard clinical devices (syringes/needles, filter-free …
Circulating Metabolites Associated With Protection Against Mycobacterium Tuberculosis Infection And Inhibition Of Mycobacterial Growth, Todia P Setiabudiawan, Lika Apriani, Julian Avila-Pacheco, Edwin Ardiansyah, Vinod Kumar, Bachti Alisjahbana, Ayesha J Verrall, Andrew R Dinardo, Agnes R Indrati, Vera P Mourits, L Charlotte J De Bree, Simone J C F M Moorlag, Clary B Clish, Leo A B Joosten, Arjan Van Laarhoven, Krista E Van Meijgaarden, Mihai G Netea, Simone A Joosten, Valerie A C M Koeken, Philip C Hill, Reinout Van Crevel
Circulating Metabolites Associated With Protection Against Mycobacterium Tuberculosis Infection And Inhibition Of Mycobacterial Growth, Todia P Setiabudiawan, Lika Apriani, Julian Avila-Pacheco, Edwin Ardiansyah, Vinod Kumar, Bachti Alisjahbana, Ayesha J Verrall, Andrew R Dinardo, Agnes R Indrati, Vera P Mourits, L Charlotte J De Bree, Simone J C F M Moorlag, Clary B Clish, Leo A B Joosten, Arjan Van Laarhoven, Krista E Van Meijgaarden, Mihai G Netea, Simone A Joosten, Valerie A C M Koeken, Philip C Hill, Reinout Van Crevel
Faculty, Staff and Students Publications
A significant proportion of individuals who are heavily exposed to infectious tuberculosis patients do not acquire Mycobacterium tuberculosis (Mtb) infection, as detected by an interferon gamma release assay (IGRA). We examined circulating metabolite profiles and metabolic genotypes in 199 heavily exposed IGRA-negative tuberculosis household contacts in Indonesia. Based on differentially abundant metabolites, activity of several pathways including arachidonic acid, arginine and proline, glutathione, and tryptophan metabolism, correlated with a negative IGRA at three months. SNPs near PRODH (involved in arginine and proline metabolism) were associated with circulating proline concentrations and persistently negative IGRA results, while SNPstudys near AFMID (involved in …
Pneumomlpred: Innovating Pneumonia Management With Guideline Adherence Review And Explainable Machine Learning-Based Mortality Prediction - A Single-Centre Retrospective Study, Kamel A. Samara, Hiba Jawdat Barqawi, Saryia Adra, Batool Aldaher, Drishti D. Kampani, Enad Haddad, Hebah Soudan, Islam Ibrahim Anwar, Mohamad Besher Adi, Omar Hamadi, Yumna Almour, Mohamed Nassef, Zaher Al Aghbari, Eman Abu-Gharbieh
Pneumomlpred: Innovating Pneumonia Management With Guideline Adherence Review And Explainable Machine Learning-Based Mortality Prediction - A Single-Centre Retrospective Study, Kamel A. Samara, Hiba Jawdat Barqawi, Saryia Adra, Batool Aldaher, Drishti D. Kampani, Enad Haddad, Hebah Soudan, Islam Ibrahim Anwar, Mohamad Besher Adi, Omar Hamadi, Yumna Almour, Mohamed Nassef, Zaher Al Aghbari, Eman Abu-Gharbieh
Abington Jefferson Health Papers
Introduction: Community-acquired pneumonia (CAP) is one of the leading causes of death globally. Changing antibiotic resistance profiles, paucity of reliable CAP mortality prediction models, and ageing populations will increase its burden. This study aims to evaluate adherence to CAP management guidelines as well as develop an ML-based mortality prediction model.
Methods: This retrospective, chart review included all CAP cases between 2016 and 2021. Variables collected included patients' demographics, comorbidities, vitals, laboratory, imaging, and culture findings, as well as initial and targeted antibiotic regimens. Data was pre-processed and analysed in python-3. Adherence to the American thoracic society/infectious diseases society of America …
Quality Improvement (Qi) Project Aimed At Reducing Unnecessary Antibiotic Usage Among Older Adult Patients By Addressing Inappropriate Antibiotic Prescribing In Primary And Long-Term Care Settings, Pamela M. Thomas
Seton Hall University Dissertations and Theses (ETDs)
Antibiotic overuse among older adults remains a significant patient safety and public health concern. Recent national data indicate that approximately 30%–50% of outpatient antibiotic prescriptions may be unnecessary, particularly for viral or self-limiting conditions (Chua et al., 2021). Antimicrobial resistance has been associated with more than 1.27 million deaths globally (Murray et al., 2022). This quality improvement project evaluated a multifaceted antimicrobial stewardship intervention in primary and long-term care settings. Baseline review of 167 antibiotic cases revealed 37.1% were inappropriate or questionable, and 28.7% lacked adequate diagnostic documentation. The intervention incorporated provider education, electronic health record decision-support tools, audit and …
Discharge Rates From Pediatric Emergency Departments Against Medical Advice Can Be Reduced By Improving Service Quality, Sounira Mehri, Josef Finsterer
Discharge Rates From Pediatric Emergency Departments Against Medical Advice Can Be Reduced By Improving Service Quality, Sounira Mehri, Josef Finsterer
Saudi Medical Journal
No abstract provided.
Covid-19–Associated Rhabdomyolysis In Hospitalized Patients: Retrospective Cohort Study, Paula Esquerdo-Serrano, Silvia Otero-Rodriguez, Hector Pinargote-Celorio, Sergio Reus, Esperanza Merino, José-Manuel Ramos-Rincón
Covid-19–Associated Rhabdomyolysis In Hospitalized Patients: Retrospective Cohort Study, Paula Esquerdo-Serrano, Silvia Otero-Rodriguez, Hector Pinargote-Celorio, Sergio Reus, Esperanza Merino, José-Manuel Ramos-Rincón
Saudi Medical Journal
Objectives: To determine the frequency of rhabdomyolysis in patients hospitalized with COVID-19 and to characterize their clinical features and outcomes. Methods: All adults admitted to the hospital were included in this single-center retrospective cohort study with COVID-19 at a tertiary care institution in Alicante, Spain, between March 2020 and March 2024. A creatine kinase (CK) threshold of 1000 U/L or higher was used to define rhabdomyolysis. Demographic, clinical, laboratory, treatment, and outcome data were collected. Patients with and without rhabdomyolysis were compared, and factors associated with in-hospital mortality (IHM) were analyzed. Results: Among 7,590 hospitalized COVID-19 patients, 20 developed rhabdomyolyses …
Seroprevalence Of Hepatitis B And Hepatitis C In Patients Hospitalized In Palliative Care Service, Meryem Betos Koçak, Burcu Güler
Seroprevalence Of Hepatitis B And Hepatitis C In Patients Hospitalized In Palliative Care Service, Meryem Betos Koçak, Burcu Güler
Saudi Medical Journal
Objectives: Patients receiving palliative care often have complex comorbidities and frequent healthcare exposure, which may place them at risk for blood-borne infections such as hepatitis B virus (HBV) and hepatitis C virus (HCV). However, data on the seroprevalence and prognostic impact of these infections in palliative populations remain limited. This study aimed to determine the seroprevalence of HBV and HCV markers in patients hospitalized in a palliative care unit and to assess their association with mortality. Methods: This retrospective study conducted on 545 adult patients a tertiary palliative care unit between 2018 and 2024. Demographic characteristics, comorbidities, nutritional support, mobility, …
Artificial Intelligence In Dialysis Therapies: Applications In Hemodialysis And Peritoneal Dialysis For Managing Infectious Diseases And Complications, Waleed H. Mahallawi
Artificial Intelligence In Dialysis Therapies: Applications In Hemodialysis And Peritoneal Dialysis For Managing Infectious Diseases And Complications, Waleed H. Mahallawi
Saudi Medical Journal
This narrative review synthesizes evidence from a systematic literature search (2019–2025) on artificial intelligence (AI) applications in hemodialysis and peritoneal dialysis for managing infections and complications. Dialysis patients face infection rates 100-fold higher than the general population and sepsis mortality exceeding 35%. The AI, utilizing machine learning algorithms such as XGBoost, deep neural networks, and explainable AI tools, revolutionizes care through precise diagnostics, prognostics, and therapeutics. Key models demonstrate high accuracy in predicting bloodstream infections (area under the curve [AUC] 0.914), classifying peritonitis (F1 0.93), detecting SARS-CoV-2 (AUROC 0.82), and forecasting mortality (AUC 0.979). Therapeutically, AI guides antibiotic stewardship, reducing …
Contribution Of Interleukin-6 (Il-6) To Body Defense And Healing In Pulmonary Tuberculosis, Hasrah Junaidi, Annis C. Adi, Soedarsono Soedarsono, Soetjipto Soetjipto, Chatarina U. Wahyuni, Fariani Syahrul, Mahmudah Mahmudah, Zakiyuddin Zakiyuddin, Iskandar Arfan, Abdullah A. Mamun, Rubia Sari
Contribution Of Interleukin-6 (Il-6) To Body Defense And Healing In Pulmonary Tuberculosis, Hasrah Junaidi, Annis C. Adi, Soedarsono Soedarsono, Soetjipto Soetjipto, Chatarina U. Wahyuni, Fariani Syahrul, Mahmudah Mahmudah, Zakiyuddin Zakiyuddin, Iskandar Arfan, Abdullah A. Mamun, Rubia Sari
Saudi Medical Journal
Objective: To examine the contribution of IL-6 to host defense and healing in pulmonary tuberculosis (TB). Pulmonary tuberculosis continues to pose a significant global health challenge, with disease outcomes determined by complex host–pathogen interactions. Interleukin-6 (IL-6), a multifunctional cytokine, has been implicated in immune regulation and tissue recovery during TB, but its specific role is not fully established. This review aimed to examine the contribution of IL-6 to host defense and healing in pulmonary TB. Methods: A comprehensive literature search was performed across PubMed, Scopus, Web of Science, ScienceDirect, and Medline following PRISMA guidelines, covering publications from 2015 to 2025. …
Evaluating The Impact Of A Standardized Intimate Partner Violence Screening Tool In A Clinical Setting, Dylan Bogucki
Evaluating The Impact Of A Standardized Intimate Partner Violence Screening Tool In A Clinical Setting, Dylan Bogucki
Evidence-Based Practice Project Reports
Intimate partner violence (IPV) is defined as any act of violence, including physical, sexual, stalking, or psychological aggression by an intimate partner, former or current. Despite being preventable, IPV remains a leading nonobstetric cause of morbidity and mortality among women, which highlights the need for systematic screening in clinical settings. The purpose of this quality improvement project is to identify women who have previously experienced or are currently experiencing IPV and to connect them with appropriate resources. Twenty-one studies were identified, all demonstrating moderate to high methodological quality and supporting the need for routine IPV screening in women’s health settings. …
Development And Psychometric Analysis Of An Instrument To Assess Social Stigma Associated With Parkinson's Disease, Ana Lourdes Guerra-Anzaldo, Arturo Emmanuel Espinosa-Picos, Karen Itzel Sánchez-Ramírez, Ana Jimena Hernández-Medrano, Amin Cervantes-Arriaga, Ariadna Domínguez-García, Mayela Rodríguez-Violante
Development And Psychometric Analysis Of An Instrument To Assess Social Stigma Associated With Parkinson's Disease, Ana Lourdes Guerra-Anzaldo, Arturo Emmanuel Espinosa-Picos, Karen Itzel Sánchez-Ramírez, Ana Jimena Hernández-Medrano, Amin Cervantes-Arriaga, Ariadna Domínguez-García, Mayela Rodríguez-Violante
Journal of Patient-Centered Research and Reviews
Purpose: To develop and report the psychometric properties of a comprehensive scale designed to measure stereotypes and attitudes of the general population towards people with Parkinson’s disease (PwP).
Methods: The development and analysis of the Parkinson's Disease Stigma Perception scale (PDSP) included four phases: 1) literature review, 2) item development, 3) tests of validity and reliability, and 4) dissemination of a preliminary version. Internal consistency was assessed using Cronbach's alpha, exploratory factor analysis (EFA) to explore underlying structures, and confirmatory factor analysis to test the model's fit.
Results: Six (2%) of the 294 survey respondents were disqualified because of incomplete …
Developing Antibodies Against Galectin-3 And Galectin-9 To Target Endometriosis, Ashleigh Burger, Noah Farnsworth, Jared J. Reisnouer, Cheyenne Vue
Developing Antibodies Against Galectin-3 And Galectin-9 To Target Endometriosis, Ashleigh Burger, Noah Farnsworth, Jared J. Reisnouer, Cheyenne Vue
2026 Symposium
Endometriosis is a disease characterized by pelvic pain and the formation of endometrial-like tissue on the outside of the uterine lining. This condition affects nearly 10% of women across the globe and confirming whether someone has endometriosis requires visualization in surgery. While the specific causes of this disease remain unclear, the over-expression of the Galectins 3 and 9 in ectopic endometrial tissues suggests a role in the development and maintenance of the condition. Monoclonal antibodies (mAbs) are highly specific proteins with potential as diagnostic or treatment tools. The goal of this study is to generate antibodies against Gal3 and Gal9. …
Bacteriophage Therapy Vs. Standard Antibiotics: A Review Of Treatment Efficacy For Recurrent Pediatric S. Pyogenes (Gas) Infections, Kartik Kannan Oms-I, Karina Malhotra Oms-I, Gabrielle Coccio Oms-I, Janhavi Belwalkar Oms-I, Jason Rienzo Oms-I, Samay Shukla Oms-I, Valerie J. Carabetta Phd
Bacteriophage Therapy Vs. Standard Antibiotics: A Review Of Treatment Efficacy For Recurrent Pediatric S. Pyogenes (Gas) Infections, Kartik Kannan Oms-I, Karina Malhotra Oms-I, Gabrielle Coccio Oms-I, Janhavi Belwalkar Oms-I, Jason Rienzo Oms-I, Samay Shukla Oms-I, Valerie J. Carabetta Phd
Rowan-Virtua Research Day
Background: Antibiotic resistance poses a growing threat to pediatric infectious disease management, particularly in the treatment of Streptococcus pyogenes (GAS) infections.1 While β-lactam antibiotics remain the first-line standard of care, their utility is limited by allergy prevalence and rising resistance among alternative antibiotic agents, such as macrolides, lincosamides, and tetracycline.2,3 Given these trends, bacteriophage therapy has emerged as a promising adjunctive treatment modality, offering targeted bacterial lysis while sparing commensal microbiota.4
Methods: A systematic literature search was conducted across PubMed and Embase (2000–2025) using terms related to antibiotic resistance, Streptococcus pyogenes, bacteriophage therapy, and pediatric populations. …
Comparison Of Ecg Features, Cardiac Biomarkers, And Clinical Outcomes In Three Waves Of Hospitalized Covid-19 Pneumonia Patients With Cardiovascular Events, Yuchen Han, Jahnavi Sunkara, Tshura S Ali, Harideep Samanapally, Vidyulata Salunkhe, Fnu Deepti, Emma C. Huang, Justin J. Huang, Maiying Kong, Jiapeng Huang
Comparison Of Ecg Features, Cardiac Biomarkers, And Clinical Outcomes In Three Waves Of Hospitalized Covid-19 Pneumonia Patients With Cardiovascular Events, Yuchen Han, Jahnavi Sunkara, Tshura S Ali, Harideep Samanapally, Vidyulata Salunkhe, Fnu Deepti, Emma C. Huang, Justin J. Huang, Maiying Kong, Jiapeng Huang
The University of Louisville Journal of Respiratory Infections
Background
Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) is a rapidly evolving virus that can severely impact the cardiovascular system. With new variants, it is important to characterize wave-specific (defined by dominant circulating variants) clinical changes.
Methods
A multi-center retrospective cohort study of patients hospitalized with SARS-CoV-2 community acquired pneumonia at eight adult acute-care hospitals in the city of Louisville, KY was conducted. Patients hospitalized with Coronavirus Disease 2019 (COVID-19) community acquired pneumonia who experienced a cardiovascular event between March 2020 and July 2022 were included in this analysis. Variant assignment was based on temporal prevalence rather than genomic confirmation, and …
Late Hepatitis B Reactivation After Hsct And B-Cell Depleting Therapy: Case Vignettes Challenging Fixed-Duration Prophylaxis, Ariana Cho, Harrison Moses, Muaz Alchirazi, Vishakh Keri, Lea Monday
Late Hepatitis B Reactivation After Hsct And B-Cell Depleting Therapy: Case Vignettes Challenging Fixed-Duration Prophylaxis, Ariana Cho, Harrison Moses, Muaz Alchirazi, Vishakh Keri, Lea Monday
Conference Presentation Abstracts
Hepatitis B virus (HBV) reactivation remains a critical concern in immunosuppressed oncology and hematopoietic stem cell transplant (HSCT) patients, yet the optimal duration of antiviral prophylaxis is unresolved. Current guidelines recommend 12–18 months of prophylaxis after HSCT or B-cell depleting therapy for patients who are isolated anti-HBc positive, based on documented cases of late reactivation beyond the traditional 12-month threshold. However, these recommendations largely derive from studies in HBsAg-positive patients or those receiving rituximab-containing regimens, with limited data addressing the broader range of high-risk scenarios encountered in practice. We present two vignettes highlighting this gap. Patient 1 is a 60-year-old …
Mycobacterium Chimaera In A Young Patient Without Underlying Cardiac Surgery History, Kate A. Szczesniak, Rakesh Shah, Malitha Hettiarachchi
Mycobacterium Chimaera In A Young Patient Without Underlying Cardiac Surgery History, Kate A. Szczesniak, Rakesh Shah, Malitha Hettiarachchi
Conference Presentation Abstracts
Introduction/Objective Mycobacterium chimaera (M. chimaera), within the Mycobacterium Avium Complex (MAC), is a slow-growing nontuberculous mycobacterium (NTM) species that is most often characterized by nonspecific symptoms of night sweats, fever, and fatigue. Due to the nonspecific symptoms of M. chimaera and the rarity of this infection, delayed or misdiagnosis occurs in these patients. Risk factors of contaminated heater-cooler units used in cardiac surgery have been reported; however, cases without this exposure, such as this case, have been cited less commonly. This case of M. chimaera will present a young patient initially presenting with dyspnea who was found to have a …
Promises, Pitfalls, And Paths Forward For The Pediatric Research Equity Act., Alexa L. Pagano, Danielle J. Green, Jennifer Goldman, Anjali Deshmukh
Promises, Pitfalls, And Paths Forward For The Pediatric Research Equity Act., Alexa L. Pagano, Danielle J. Green, Jennifer Goldman, Anjali Deshmukh
Manuscripts, Articles, Book Chapters and Other Papers
IMPORTANCE: Since its enactment in 2003, the Pediatric Research Equity Act (PREA) has significantly increased the number of pediatric drug studies performed and expanded pediatric drug labeling. Despite these advancements, many drugs used in children still lack pediatric-specific US Food and Drug Administration (FDA) labeling, even when pediatric studies are required by law. Recent legislative changes strengthened the FDA's enforcement authority over PREA. As these changes are implemented, persistent gaps in pediatric drug development warrant examination. Addressing these gaps may help ensure that children are systematically included in clinical research and that medications used in children are supported by rigorous …
Natural Maternal Immunity Protects Neonates From Escherichia Coli Sepsis., Raymond E. Diep, Ujjwal Adhikari, Kubra Gokce Tezel, Giang Pham, Allison R. Burrell, Mary A. Staat, Nguyen Thi Khanh Nhu, Minh-Duy Phan, Kate M. Peters, Mark A. Schembri, Scott H. Saunders, David B. Haslam, John J. Erickson, Susana Chavez-Bueno, Sing Sing Way
Natural Maternal Immunity Protects Neonates From Escherichia Coli Sepsis., Raymond E. Diep, Ujjwal Adhikari, Kubra Gokce Tezel, Giang Pham, Allison R. Burrell, Mary A. Staat, Nguyen Thi Khanh Nhu, Minh-Duy Phan, Kate M. Peters, Mark A. Schembri, Scott H. Saunders, David B. Haslam, John J. Erickson, Susana Chavez-Bueno, Sing Sing Way
Manuscripts, Articles, Book Chapters and Other Papers
Escherichia coli is a leading cause of neonatal sepsis, with infection occurring in approximately one in every 1,000 live births. However, with E. coli colonization beginning soon after birth and defects in neonatal host defence maturation, an alternative consideration is why infection does not occur even more frequently. Here we show that newborn babies with E. coli sepsis have selectively reduced vertically transferred natural antibodies that recognize E. coli, mechanistically explaining their susceptibility to infection. Complementary preclinical studies show that preconceptual intestinal colonization with probiotic E. coli Nissle 1917 (EcN) primes anti-E. coli immunoglobulin G (IgG) antibodies with broad cross-reactivity …
Clinical Characteristics, Antibiotic Resistance Trends, And Associated Molecular Epidemiology Traits In Escherichia Coli Isolates Producing Neonatal Bacteremia, Keerti Ivaturi, Christine Symes, Mina Farahbakhsh, Sanjula Bhuri, Joshua L Wheatley, Rangaraj Selvarangan, Daniel P. Heruth, Susana Chavez-Bueno
Clinical Characteristics, Antibiotic Resistance Trends, And Associated Molecular Epidemiology Traits In Escherichia Coli Isolates Producing Neonatal Bacteremia, Keerti Ivaturi, Christine Symes, Mina Farahbakhsh, Sanjula Bhuri, Joshua L Wheatley, Rangaraj Selvarangan, Daniel P. Heruth, Susana Chavez-Bueno
Manuscripts, Articles, Book Chapters and Other Papers
BACKGROUND: Escherichia coli is a leading cause of neonatal sepsis. This study's objective was to investigate the clinical characteristics of newborns with E. coli bacteremia, and recent antibiotic resistance trends and molecular epidemiologic features of these invasive strains.
METHODS: Clinical data and blood E. coli isolates collected from 54 neonates with bacteremia were studied. E. coli antibiotic susceptibility trends over time, and whole-genome sequencing data relevant to the genomic relatedness and capsule genotype of the isolates were analyzed.
RESULTS: Thirty percent of bacteremic newborns were preterm. Mortality was 19% in preterm versus 5% in term infants. Cerebrospinal fluid was collected …
Validation Of A Real-Time Pcr Laboratory Developed Test For The Detection Of Pneumocystis Jirovecii In Bronchoalveolar Lavage Samples, Caitlyn Moon
Honors Scholar Theses
Pneumocystis jirovecii is an opportunistic, host-obligate fungal pathogen responsible for causing P. jirovecii pneumonia (PJP) in humans. PJP is treated with trimethoprim-sulfamethoxazole (TMP-SMX), a strong broad-spectrum antibiotic that carries risk of renal and hepatotoxicity. Therefore, rapid diagnosis or exclusion of PJP is crucial to ensure PJP-positive patients receive effective treatment and PJP-negative patients avoid unnecessary antibiotics. Unlike most microorganisms, P. jirovecii cannot be cultured, presenting complications for the typical methods of diagnosing fungal pathogens. Historically, the gold standard for diagnosis was direct microscopic examination with stains such as methenamine silver and calcofluor white, but this diagnostic technique requires highly skilled …
Prevalence And Determinants Of Fully Vaccinated Status For Covid-19 Among Pregnant Women In Brazil, Ghana, Kenya, And Pakistan, Vaishnavi Mathur, Jessica Schue, Berhaun Fesshaye, Prachi Singh, Emily Miller, Caroline Badzi, Emefa Modey, Marleen Temmerman, Ferdinand Okwaro, Renato Souza
Prevalence And Determinants Of Fully Vaccinated Status For Covid-19 Among Pregnant Women In Brazil, Ghana, Kenya, And Pakistan, Vaishnavi Mathur, Jessica Schue, Berhaun Fesshaye, Prachi Singh, Emily Miller, Caroline Badzi, Emefa Modey, Marleen Temmerman, Ferdinand Okwaro, Renato Souza
Centre of Excellence in Women and Child Health
Maternal immunization provides essential maternal and fetal protection for several infectious diseases. The variability in vaccination guidelines for pregnant women across countries and through the course of the COVID-19 pandemic influenced the perception of both the general public and broader health care systems towards COVID-19 vaccination in pregnancy and moreover shaped the accessibility and decision-making trajectory of pregnant women to become fully vaccinated. As part of a larger multi-country, mixed-methods study, the purpose of this cross-sectional analysis is to assess what factors are associated with pregnant women being fully vaccinated for COVID-19 in Brazil, Ghana, Kenya, and Pakistan. In each …
Pertussis, Children's Mercy Kansas City
Determining Zap-70 Signaling Pathways Mediated By Ccr7 In Tcr T Cell Activation, Vivian Torres
Determining Zap-70 Signaling Pathways Mediated By Ccr7 In Tcr T Cell Activation, Vivian Torres
Open Access Theses & Dissertations
Activation of T lymphocytes is the main event that occurs in the adaptive immune response after engagement of the T cell receptor (TCR) with the peptide of the major histocompatibility complex (pMHC) molecules that are demonstrated by antigen presenting cells [1]. A key step in this process is the recruitment and activation of the zeta chain associated protein of 70 kDa (ZAP-70). ZAP-70 couples TCR engagement to downstream intracellular signaling pathways through phosphorylation of tyrosine residues within intracellular tyrosine activation motifs (ITAMs) [2]. Although there have been extensive studies on the signaling response through TCR activation, the regulatory influence of …
Low-Abundance And Fragmentary Helicobacter Pylori Dna Detected In Phenotypically Negative Gastric Biopsies Using Targeted Sequencing, Fabien Mbaya-Tshibangu, Alain Cimuanga-Mukanya, Evariste Tshibangu-Kabamba, Nadine Kayiba-Kalenda, Tressy Kalenga-Ngomba, Patrick Ngoma-Kisoko, Gunturu Revathi, Junko Akada, Benoît Mbiya-Mukinayi, Augustin Tshibaka Kabongo
Low-Abundance And Fragmentary Helicobacter Pylori Dna Detected In Phenotypically Negative Gastric Biopsies Using Targeted Sequencing, Fabien Mbaya-Tshibangu, Alain Cimuanga-Mukanya, Evariste Tshibangu-Kabamba, Nadine Kayiba-Kalenda, Tressy Kalenga-Ngomba, Patrick Ngoma-Kisoko, Gunturu Revathi, Junko Akada, Benoît Mbiya-Mukinayi, Augustin Tshibaka Kabongo
Pathology, East Africa
Accurate detection and monitoring of antimicrobial resistance (AMR) in Helicobacter pylori mainly rely on phenotypic methods and culture, which can sometimes fail when bacterial load is low or after recent treatment. We investigated whether gastric biopsies classified as H. pylori-negative by standard diagnostic techniques still contain detectable bacterial DNA, including regions linked to AMR, and assessed whether selected DNA fragments can mediate allelic exchange in vitro. Gastric biopsies from 46 dyspeptic patients in the Democratic Republic of the Congo (including 23 phenotypically positive and 23 phenotypically negative individuals) were analyzed using long-read amplicon sequencing of seven resistance-associated loci, selective whole-genome …
Optimized Ultrasound Imaging Of Phase-Change Nanodroplets, Charles R Dyall, Dmitry Nevozhay, Andy Liu, Trevor M Mitcham, George J Lu, Konstantin V Sokolov, Richard R Bouchard
Optimized Ultrasound Imaging Of Phase-Change Nanodroplets, Charles R Dyall, Dmitry Nevozhay, Andy Liu, Trevor M Mitcham, George J Lu, Konstantin V Sokolov, Richard R Bouchard
Faculty, Staff and Student Publications
Phase-change nanodroplets (PCNDs) continue to generate significant research interest due to their potential to extravasate into tissue, to be targeted for molecular imaging and drug delivery, and to undergo an induced phase-change to "activated" microbubbles (MBs) for ultrasound (US) imaging. To accurately quantify molecular markers, however, one assumes a consistent proportion of PCNDs in a region of interest (ROI) are stably activated and imaged. Herein we present a framework for developing a diagnostic sequence that is optimized for PCND activation uniformity, contrast, and acquisition time. To develop this framework, activation was examined at three scales of increasing complexity: single, adjacent, …
Potential Impact Of Parasites In The Transmission Of Chronic Wasting Disease, Paulina Soto, Rodrigo Morales
Potential Impact Of Parasites In The Transmission Of Chronic Wasting Disease, Paulina Soto, Rodrigo Morales
Faculty, Staff and Student Publications
No abstract provided.
Optical Coherence Tomography As An Emerging Technique For Identifying Pediatric Middle Ear Effusion, Roger Neuberger, Jeffrey Carter, Adriana Dives, Ana Sofia C Ibarrola, Maritsa Ixba, Elton Lambert, Yi-Chun Liu, Anna H Messner
Optical Coherence Tomography As An Emerging Technique For Identifying Pediatric Middle Ear Effusion, Roger Neuberger, Jeffrey Carter, Adriana Dives, Ana Sofia C Ibarrola, Maritsa Ixba, Elton Lambert, Yi-Chun Liu, Anna H Messner
Faculty, Staff and Students Publications
Objective: Acute otitis media (AOM) and otitis media with effusion (OME) rely on accurate characterization of middle ear effusion (MEE). Optical coherence tomography (OCT) is a potential modality for noninvasive analysis of MEE, thereby assisting with otitis media diagnosis. This study aims to compare the diagnostic performance of OCT with otoscopy and tympanometry in pediatric patients.
Methods: A prospective convenience sample of 164 pediatric patients aged 6 months to 12 years was recruited from two tertiary care pediatric otolaryngology clinics. During their visit, each child underwent otoscopy, tympanometry, and OCT evaluation. Scans were reviewed by both a fellowship-trained pediatric otolaryngologist …
Derivation And Validation Of The Pediatric Community-Acquired Pneumonia Severity (Pedcaps) Score: A Prospective Cohort Study, Todd A Florin, Ron Reeder, Lilliam Ambroggio, Richard M Ruddy, Samir S Shah, Allison Cator, Matthew J Lipshaw, Geoffrey A Capraro, Laura F Sartori, Amy Y Cheng, Leah Tzimenatos, Patrick S Walsh, Claudia R Morris, Chris A Rees, Son H Mclaren, Tamar R Lubell, Chari D Larsen, Justin Moher, Eileen J Klein, Shubhada Hooli, Nathan Kuppermann
Derivation And Validation Of The Pediatric Community-Acquired Pneumonia Severity (Pedcaps) Score: A Prospective Cohort Study, Todd A Florin, Ron Reeder, Lilliam Ambroggio, Richard M Ruddy, Samir S Shah, Allison Cator, Matthew J Lipshaw, Geoffrey A Capraro, Laura F Sartori, Amy Y Cheng, Leah Tzimenatos, Patrick S Walsh, Claudia R Morris, Chris A Rees, Son H Mclaren, Tamar R Lubell, Chari D Larsen, Justin Moher, Eileen J Klein, Shubhada Hooli, Nathan Kuppermann
Faculty, Staff and Students Publications
Introduction: Community-acquired pneumonia (CAP) is a frequent and costly cause of pediatric emergency department (ED) visits and hospitalizations. Previous prognostic tools for CAP are limited by small samples, single-center or retrospective designs, lack of generalizability to ED settings, lack of biomarkers, or limited objective data. To overcome these limitations, we will derive and externally validate a prediction rule for pediatric CAP severity in a large, multicenter prospective cohort.
Methods: This is a prospective cohort study of children 3 months to 18 years old with CAP who present to EDs within the Pediatric Emergency Care Applied Research Network. Enrollment began 8/2023 …
Antibiotics Aren’T Enough, Andrew R Dinardo, Christoph Lange
Antibiotics Aren’T Enough, Andrew R Dinardo, Christoph Lange
Faculty, Staff and Students Publications
No abstract provided.