Medical Specialties Commons^™

Structured Textbook Review And Individualized Learning Plans Successfully Remediate Underperforming Residents And Improve General Surgery Program Performance On The Absite, Aaron Pinnola, Christoph Kaufmann

HCA Healthcare Journal of Medicine

Background

We endeavored to create an evidence-based curriculum to improve general surgery resident fund of knowledge. Global and resident-specific interventions were employed to this end. These interventions were monitored via multiple choice question results on a weekly basis and American Board of Surgery In-Training Examination (ABSITE) performance.

Methods

This study was performed in a prospective manner over a 2-year period. A structured textbook review with testing was implemented for all residents. A focused textbook question-writing assignment and a Surgical Council on Resident Education (SCORE)-based individualized learning plan (ILP) were implemented for residents scoring below the 35th percentile on the ABSITE. …

Presentations Of Cutaneous Disease In Various Skin Pigmentations: Acne Vulgaris - Comedonal Acne, Christopher M. Wong, Christina Guo, Christian J. Scheufele, Daniel A. Nguyen, Jean Elizze M. Charles, Michael Carletti, Stephen E. Weis

HCA Healthcare Journal of Medicine

Acne vulgaris is a common inflammatory skin condition of the pilosebaceous unit in adolescents and young adults and is primarily characterized by the presence of open and closed comedones. In patients of various skin pigmentations, skin-colored comedones may be difficult to appreciate and lead to incorrect or delayed diagnosis of acne. To aid in the identification of acne vulgaris in patients of various skin pigmentations, we present comedonal acne in different skin types and commonly encountered differential diagnoses. With its significant volume and burden of disease, acne vulgaris should be correctly identified in various skin pigmentations by primary care clinicians …

Percutaneous Endoscopic Gastrostomy: A Possible Trigger For Dieulafoy's Lesion, Ali Tariq Alvi, Elsa Tchouambou, Murali Shankar

HCA Healthcare Journal of Medicine

Introduction

Upper gastrointestinal (GI) bleeding is a medical condition commonly seen in clinical practice due to variable etiologies and a multitude of presentations. The patients can present with hematemesis, melena, or hematochezia in case of severe bleeding. The initial evaluation should involve assessing the hemodynamic status with adequate resuscitation followed by diagnostic tests to identify the source and potentially treat it. Dieulafoy's lesion, sometimes referred to as Dieulafoy's disease, is a rare cause of upper GI bleeding with no clear risk factors, which makes it a diagnostic conundrum. Here we describe an unusual case of Dieulafoy's lesion developing following percutaneous …

Primary Mucinous Carcinoma Of The Thyroid: A Case Report, Literature Review, And Immunohistochemistry Summary, Martin T. Halicek, Caleb Scott, Terence Zimmermann, Brian Watson

HCA Healthcare Journal of Medicine

Introduction

Primary mucinous carcinoma of the thyroid is an exceedingly rare malignancy that is histologically similar to mucinous carcinoma of other sites. Accurate diagnosis is a challenging yet crucial component of clinical management for both patients and our understanding of this rare disease.

Case Presentation

We report the case of a 69-year-old male patient with primary mucinous carcinoma of the thyroid. Microscopic examination of a biopsy specimen showed fibrous tissue, which was extensively and irregularly infiltrated by a cytologically malignant epithelial neoplasm showing glandular differentiation with mucin production. Immunohistochemistry demonstrated that tumor cells were positive for TTF1, thyroglobulin, CK7, and …

An Unusual Case Of Microcystic Serous Cystadenoma In A 19-Year-Old Male Patient, Jamie Lee Aldakkour, Alvin Boyd Newman-Caro, Ashley Henning

HCA Healthcare Journal of Medicine

Introduction

Microcystic serous cystadenomas are uncommon, benign neoplasms rarely known to progress to malignancy. They are typically asymptomatic and inadvertently discovered during imaging for another unrelated condition. When discovered, they are commonly found in females over 60 years of age.

Case Presentation

In this case report, we examine a unique presentation of a serous cystadenoma discovered when a 19-year-old male presented with symptoms of abdominal pain, nausea, and vomiting.

Conclusion

Previous studies on serous cystadenomas in a younger male demographic are rare. Therefore, this study will provide additional insight into the signs, symptoms, diagnosis, and management of cystadenomas in young …

Bowel-Associated Dermatosis-Arthritis Syndrome: A Case Report, Christian J. Scheufele, Leisa Hodges, Aya Hasan, Ashleigh E. Workman, Peter Malouf, Stephen E. Weis

HCA Healthcare Journal of Medicine

Introduction

Gastric bypass surgery is an effective surgical intervention for morbid obesity. However, it is not without risk. Gastric bypass surgery may produce malabsorptive or surgical complications, which can result in nutritional deficiencies as well as syndromes related to bacterial overgrowth in the blind loops of the bowel.

Case Presentation

Severe nutritional deficiencies may occur due to patient noncompliance with the prescribed regimen, or arise secondary to malabsorptive or mechanical surgical complications. We describe a case of a 37-year-old female who underwent gastric bypass surgery and experienced a recalcitrant eczematous eruption with sporadic subcutaneous, purulent nodules which completely resolved after …

Characteristics And Hospital Outcomes Of 1403 Patients Hospitalized At Community Hospitals With Ankylosing Spondylitis, Se Won Lee, Carol Elsakr, Jonathan Holt, Napatkamon Ayutyanont

HCA Healthcare Journal of Medicine

Background

In this study, we aimed to assess the hospital course, outcomes after hospitalization, and predictors of outcomes in patients with ankylosing spondylitis (AS).

Methods

We included 1403 patients with AS between 2016 and 2021 who were identified using International Classification of Disease (ICD) codes from a large for-profit healthcare system database. Demographics and clinical characteristics were compared between those who had a favorable outcome, defined as being discharged to home without readmission within 3 months of discharge, versus those who had an unfavorable outcome. A stepwise logistic regression was used to identify demographic and clinical characteristics associated with home …

Variation In Transcript Reports Among Residency Applicants: An Anesthesia Program’S Perspective, Alex M. Hendon, Imani Thornton

HCA Healthcare Journal of Medicine

Background

With recent changes made to move USMLE Step 1 and COMLEX Level 1 scores to Pass/Fail, it becomes necessary to find other metrics to evaluate residency candidates. One conserved metric included in all residency applications is medical school transcripts. This study aims to highlight the highly varied transcript reporting in a new era of holistic applicant review.

Methods

Medical school transcripts were extracted from the Electronic Residency Application Service applications to our anesthesiology residency program for the 2021-2022 application cycle. All personally identifiable information was removed. Results were categorized and tallied by 2 independent reviewers. Overall, we assessed transcript …

Granulocytic Myeloid-Derived Suppressor Cell Activity During Biofilm Infection Is Regulated By A Glycolysis/Hif1a Axis, Christopher M. Horn, Prabhakar Arumugam, Zachary Van Roy, Cortney E. Heim, Rachel W. Fallet, Blake P. Bertrand, Dhananjay Shinde, Vinai Chittezham Thomas, Svetlana Romanova, Tatiana K. Bronich, Curtis Hartman, Kevin Garvin, Tammy Kielian

Journal Articles: Pathology and Microbiology

Staphylococcus aureus is a leading cause of biofilm-associated prosthetic joint infection (PJI). A primary contributor to infection chronicity is an expansion of granulocytic myeloid-derived suppressor cells (G-MDSCs), which are critical for orchestrating the antiinflammatory biofilm milieu. Single-cell sequencing and bioinformatic metabolic algorithms were used to explore the link between G-MDSC metabolism and S. aureus PJI outcome. Glycolysis and the hypoxia response through HIF1a were significantly enriched in G-MDSCs. Interfering with both pathways in vivo, using a 2-deoxyglucose nanopreparation and granulocyte-targeted Hif1a conditional KO mice, respectively, attenuated G-MDSC-mediated immunosuppression and reduced bacterial burden in a mouse model of S. aureus PJI. …

Use Of Technology In Training Periop 101 Students, John Carroll, Bsn, Rn. Cnor. Tcrn, Rnfa, Annamarie R. Vrobel, Bsn, Rv, Cpt, Sarah Germanovich, Msn, Rn, Cnor, Tcrn

Jefferson Hospital Staff Papers and Presentations

Presented at the 2024 Association of periOperative Registered Nurses (AORN) Global Surgical Conference & Expo.

Biological Insights From Plasma Proteomics Of Non-Small Cell Lung Cancer Patients Treated With Immunotherapy, Jair Bar, Raya Leibowitz, Niels Reinmuth, Astrid Ammendola, Eyal Jacob, Mor Moskovitz, Adva Levy-Barda, Michal Lotem, Rivka Katsenelson, Abed Agbarya, Mahmoud Abu-Amna, Maya Gottfried, Tatiana Harkovsky, Ido Wolf, Ella Tepper, Gil Loewenthal, Ben Yellin, Yehuda Brody, Nili Dahan, Maya Yanko, Coren Lahav, Michal Harel, Shani Raveh Shoval, Yehonatan Elon, Itamar Sela, Adam Dicker, Yuval Shaked

Department of Radiation Oncology Faculty Papers

INTRODUCTION: Immune checkpoint inhibitors have made a paradigm shift in the treatment of non-small cell lung cancer (NSCLC). However, clinical response varies widely and robust predictive biomarkers for patient stratification are lacking. Here, we characterize early on-treatment proteomic changes in blood plasma to gain a better understanding of treatment response and resistance.

METHODS: Pre-treatment (T0) and on-treatment (T1) plasma samples were collected from 225 NSCLC patients receiving PD-1/PD-L1 inhibitor-based regimens. Plasma was profiled using aptamer-based technology to quantify approximately 7000 plasma proteins per sample. Proteins displaying significant fold changes (T1:T0) were analyzed further to identify associations with clinical outcomes using …

Efficient Gene Editing For Heart Disease Via Elip-Based Crispr Delivery System, Xing Yin, Romain Harmancey, Brion Frierson, Jean G Wu, Melanie R Moody, David D Mcpherson, Shao-Ling Huang

Faculty, Staff and Student Publications

Liposomes as carriers for CRISPR/Cas9 complexes represent an attractive approach for cardiovascular gene therapy. A critical barrier to this approach remains the efficient delivery of CRISPR-based genetic materials into cardiomyocytes. Echogenic liposomes (ELIP) containing a fluorescein isothiocyanate-labeled decoy oligodeoxynucleotide against nuclear factor kappa B (ELIP-NF-κB-FITC) were used both in vitro on mouse neonatal ventricular myocytes and in vivo on rat hearts to assess gene delivery efficacy with or without ultrasound. In vitro analysis was then repeated with ELIP containing Cas9-sg-IL1RL1 (interleukin 1 receptor-like 1) RNA to determine the efficiency of gene knockdown. ELIP-NF-κB-FITC without ultrasound showed limited gene delivery in …

Integrating Primary Care, Shared Decision Making, And Community Engagement To Facilitate Equitable Access To Multi-Cancer Early Detection Clinical Trials, Cheryl L. Thompson, Adam H. Buchanan, Ronald E. Myers, David S. Weinberg

Department of Medical Oncology Faculty Papers

Effective implementation of cancer screening programs can reduce disease-specific incidence and mortality. Screening is currently recommended for breast, cervical, colorectal and lung cancer. However, initial and repeat adherence to screening tests in accordance with current guidelines is sub-optimal, with the lowest rates observed in historically underserved groups. If used in concert with recommended cancer screening tests, new biospecimen-based multi-cancer early detection (MCED) tests could help to identify more cancers that may be amendable to effective treatment. Clinical trials designed to assess the safety and efficacy of MCED tests to assess their potential for reducing cancer mortality are needed and many …

Mechanisms Of Sleep Disturbances In Long-Term Cancer Survivors: A Childhood Cancer Survivor Study Report, Lauren C Daniel, Huiqi Wang, Tara M Brinkman, Kathy Ruble, Eric S Zhou, Oxana Palesh, Robyn Stremler, Rebecca Howell, Daniel A Mulrooney, Valerie M Crabtree, Sogol Mostoufi-Moab, Kevin Oeffinger, Joseph Neglia, Yutaka Yasui, Gregory T Armstrong, Kevin Krull

Faculty, Staff and Student Publications

Background: Sleep problems following childhood cancer treatment may persist into adulthood, exacerbating cancer-related late effects and putting survivors at risk for poor physical and psychosocial functioning. This study examines sleep in long-term survivors and their siblings to identify risk factors and disease correlates.

Methods: Childhood cancer survivors (≥5 years from diagnosis; n = 12 340; 51.5% female; mean [SD] age = 39.4 [9.6] years) and siblings (n = 2395; 57.1% female; age = 44.6 [10.5] years) participating in the Childhood Cancer Survivor Study completed the Pittsburgh Sleep Quality Index (PSQI). Multivariable Poisson-error generalized estimating equation compared prevalence of binary sleep …

The Emerging Importance Of Skull-Brain Interactions In Traumatic Brain Injury, Peixi Zhao, Rui Jin, Bin Zhao, Le Han, Wenjuan Chen, Nina Hao, Yi Cui, Ankit Madan, Joy Awosika, Shane Lloyd, Yili Zhang

Faculty, Staff and Student Publications

Background and Objective

Immune checkpoint inhibitors (ICIs) have been widely applied and studied in the treatment of gastrointestinal (GI) cancers, and have achieved good results. However, in clinical practice, it has been observed that only some patients respond well to ICIs, and some patients may experience various degrees of adverse reactions during the treatment. Timely evaluation of the potential therapeutic effects and adverse reactions of ICIs for patients has important clinical significance. This review aimed to summarize recent progress regarding efficacy-associated biomarkers for ICIs in GI cancer.

Methods

The literature on ICI treatment in GI cancers was searched in the …

The Combined Immunohistochemical Expression Of Ambra1 And Sqstm1 Identifies Patients With Poorly Differentiated Cutaneous Squamous Cell Carcinoma At Risk Of Metastasis: A Proof Of Concept Study, Michael H. Alexander, William J. Cousins, Tom Ewen, Andrew P. South, Penny Lovat, Niki Stefanos

Department of Dermatology and Cutaneous Biology Faculty Papers

BACKGROUND: Cutaneous squamous cell carcinoma (cSCC) incidence continues to increase globally with, as of yet, an unmet need for reliable prognostic biomarkers to identify patients at increased risk of metastasis. The aim of the present study was to test the prognostic potential of the combined immunohistochemical expression of the autophagy regulatory biomarkers, AMBRA1 and SQSTM1, to identify high-risk patient subsets.

METHODS: A retrospective cohort of 68 formalin-fixed paraffin-embedded primary cSCCs with known 5-year metastatic outcomes were subjected to automated immunohistochemical staining for AMBRA1 and SQSTM1. Digital images of stained slides were annotated to define four regions of interest: the normal …

Pan-Cancer Proteogenomics Characterization Of Tumor Immunity, Francesca Petralia, Weiping Ma, Tomer M Yaron, Francesca Pia Caruso, Nicole Tignor, Joshua M Wang, Daniel Charytonowicz, Jared L Johnson, Emily M Huntsman, Giacomo B Marino, Anna Calinawan, John Erol Evangelista, Myvizhi Esai Selvan, Shrabanti Chowdhury, Dmitry Rykunov, Azra Krek, Xiaoyu Song, Berk Turhan, Karen E Christianson, David A Lewis, Eden Z Deng, Daniel J B Clarke, Jeffrey R Whiteaker, Jacob J Kennedy, Lei Zhao, Rossana Lazcano Segura, Harsh Batra, Maria Gabriela Raso, Edwin Roger Parra, Rama Soundararajan, Ximing Tang, Yize Li, Xinpei Yi, Shankha Satpathy, Ying Wang, Maciej Wiznerowicz, Tania J González-Robles, Antonio Iavarone, Sara J C Gosline, Boris Reva, Ana I Robles, Alexey I Nesvizhskii, D R Mani, Michael A Gillette, Robert J Klein, Marcin Cieslik, Bing Zhang, Amanda G Paulovich, Robert Sebra, Zeynep H Gümüş, Galen Hostetter, David Fenyö, Gilbert S Omenn, Lewis C Cantley, Avi Ma'ayan, Alexander J Lazar, Michele Ceccarelli, Pei Wang, Clinical Proteomic Tumor Analysis Consortium

Faculty, Staff and Student Publications

Despite the successes of immunotherapy in cancer treatment over recent decades, less than <10%-20% cancer cases have demonstrated durable responses from immune checkpoint blockade. To enhance the efficacy of immunotherapies, combination therapies suppressing multiple immune evasion mechanisms are increasingly contemplated. To better understand immune cell surveillance and diverse immune evasion responses in tumor tissues, we comprehensively characterized the immune landscape of more than 1,000 tumors across ten different cancers using CPTAC pan-cancer proteogenomic data. We identified seven distinct immune subtypes based on integrative learning of cell type compositions and pathway activities. We then thoroughly categorized unique genomic, epigenetic, transcriptomic, and proteomic changes associated with each subtype. Further leveraging the deep phosphoproteomic data, we studied kinase activities in different immune subtypes, which revealed potential subtype-specific therapeutic targets. Insights from this work will facilitate the development of future immunotherapy strategies and enhance precision targeting with existing agents.

The Card8 Inflammasome Dictates Hiv/Siv Pathogenesis And Disease Progression, Qiankun Wang, Kolin M Clark, Ritudhwaj Tiwari, Nagarajan Raju, Gregory K Tharp, Jeffrey Rogers, R Alan Harris, Muthuswamy Raveendran, Steven E Bosinger, Tricia H Burdo, Guido Silvestri, Liang Shan

Faculty, Staff and Students Publications

While CD4+ T-cell depletion is key to disease progression in people living with HIV and SIV-infected macaques, the mechanisms underlying this depletion remain incompletely understood, with most cell death involving uninfected cells. In contrast, SIV infection of “natural” hosts such as sooty mangabeys do not cause CD4+ depletion and AIDS despite high-level viremia. Here, we report that the CARD8 inflammasome is activated immediately after HIV entry by the viral protease encapsulated in incoming virions. Sensing of HIV protease activity by CARD8 leads to rapid pyroptosis of quiescent cells without productive infection, while T-cell activation abolishes CARD8 function and increases permissiveness …

Interim Estimates Of 2023-24 Seasonal Influenza Vaccine Effectiveness - United States, Aaron M Frutos, Ashley M Price, Elizabeth Harker, Emily L Reeves, Haris M Ahmad, Vel Murugan, Emily T Martin, Stacey House, Elie A Saade, Richard K Zimmerman, Manjusha Gaglani, Karen J Wernli, Emmanuel B Walter, Marian G Michaels, Mary A Staat, Geoffrey A Weinberg, Rangaraj Selvarangan, Julie A Boom, Eileen J Klein, Natasha B Halasa, Adit A Ginde, Kevin W Gibbs, Yuwei Zhu, Wesley H Self, Sara Y Tartof, Nicola P Klein, Kristin Dascomb, Malini B Desilva, Zachary A Weber, Duck-Hye Yang, Sarah W Ball, Diya Surie, Jennifer Decuir, Fatimah S Dawood, Heidi L Moline, Ariana P Toepfer, Benjamin R Clopper, Ruth Link-Gelles, Amanda B Payne, Jessie R Chung, Brendan Flannery, Nathaniel M Lewis, Samantha M Olson, Katherine Adams, Mark W Tenforde, Shikha Garg, Lisa A Grohskopf, Carrie Reed, Sascha Ellington, Cdc Influenza Vaccine Effectiveness Collaborators

Faculty, Staff and Students Publications

In the United States, annual influenza vaccination is recommended for all persons aged ≥6 months. Using data from four vaccine effectiveness (VE) networks during the 2023-24 influenza season, interim influenza VE was estimated among patients aged ≥6 months with acute respiratory illness-associated medical encounters using a test-negative case-control study design. Among children and adolescents aged 6 months-17 years, VE against influenza-associated outpatient visits ranged from 59% to 67% and against influenza-associated hospitalization ranged from 52% to 61%. Among adults aged ≥18 years, VE against influenza-associated outpatient visits ranged from 33% to 49% and against hospitalization from 41% to 44%. VE …

Postoperative Atrial Fibrillation (Poaf) After Cardiac Surgery: Clinical Practice Review, Orlando R Suero, Ahmed K Ali, Lauren R Barron, Matthew W Segar, Marc R Moon, Subhasis Chatterjee

Faculty, Staff and Students Publications

Postoperative atrial fibrillation (POAF) after cardiac surgery is associated with elevated morbidity and mortality. Although current prediction models have limited efficacy, several perioperative interventions can reduce patients' risk of POAF. These begin with preoperative medications, including beta-blockers and amiodarone. Moreover, patients should be screened for preexisting atrial fibrillation (AF) so that concomitant surgical ablation and left atrial appendage occlusion can be performed in appropriate candidates. Intraoperative interventions such as posterior pericardiectomy can reduce mediastinal fluid accumulation, which is a trigger for POAF. Furthermore, many preventive strategies for POAF are implemented in the immediate postoperative period. Initiating beta-blockers, amiodarone, or both …

Covid-19 Infection Increases The Development Of Stevens-Johnson Syndrome And Toxic Epidermal Necrolysis: A Retrospective Cohort Analysis, Kristen K. Curtis, Meghan M. Dillan, Timmie R. Sharma, Joseph Piktel

Student Scholarship

To the Editor: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) represent a spectrum of severe mucocutaneous reactions characterized by extensive epidermal detachment, most commonly due to medications.1 Some viruses, such as the human immunodeficiency virus, have been found to be an independent risk factor for the development of SJS and TEN, though the mechanism is not completely understood.2 Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel coronavirus identified in late 2019, is most commonly associated with mild respiratory illness. However, cutaneous manifestations, including SJS and TEN, have been increasingly reported during and after COVID-19 infection.3 Therefore, the objective …

Scurvy: A Rare Disease Or A Rare Diagnosis?, David F. Gaieski

Department of Emergency Medicine Faculty Papers

Introduction:

Scurvy, the disease state caused by ascorbic acid deficiency, was once an extremely common disease but is now thought to be a rare disease in postmodern societies. Physicians are not trained to consider scurvy as a possible diagnosis in patients at risk; rather, it is considered a rare diagnosis to add to a differential for completeness’s sake.

Methods:

We sought to describe the scorbutic patients seen by one physician during a busy academic emergency medicine career. Case series of patients seen by one physician between 1993 and 2023 at five academic teaching hospitals with Emergency Departments (EDs) in the …

Contemporary Report Of Surgical Outcomes After Single-Stage Total Pancreatectomy: A 10-Year Experience, Nitzan Zohar, Luke Kowal, David Moskal, Francesca Ponzini, George Sun, Ryan J. Lamm, John Williamson, Avinoam Nevler, Harish Lavu, Warren R. Maley, Charles J. Yeo, Wilbur B. Bowne

Department of Surgery Faculty Papers

BACKGROUND: Surgeons rarely perform elective total pancreatectomy (TP). Our study seeks to report surgical outcomes in a contemporary series of single-stage (SS) TP patients.

METHODS: Between the years 2013 to 2023 we conducted a retrospective review of 60 consecutive patients who underwent SSTP. Demographics, pathology, treatment-related variables, and survival were recorded and analyzed.

RESULTS: SSTP consisted of 3% (60/1859) of elective pancreas resections conducted. Patient median age was 68 years. Ninety percent of these patients (n = 54) underwent SSTP for pancreatic ductal adenocarcinoma (PDAC). Conversion from a planned partial pancreatectomy to TP occurred intraoperatively in 31 (52%) patients. Fifty-nine …

Impact Of Electronic Cigarettes On Pediatric, Adolescent And Young Adult Leukemia Patients, Sanila Sarkar, Lea M Stitzlein, Joya Chandra

Faculty, Staff and Student Publications

Electronic cigarettes, which deliver an aerosolized, nicotine-containing product upon inhalation, are a public health issue that continue to gain popularity among adolescents and young adults in the United States. Use of electronic cigarettes is wide, and extends to pediatric patients with multiple comorbidities, including childhood cancer, leaving them vulnerable to further negative health outcomes. Acute leukemias are the most common type of cancer in pediatric populations, and treatment outcomes for these patients are improving; consequently, there is an increased emphasis on the effect of behavioral lifestyle factors on quality of life in survivorship. The rate of electronic cigarette use is …

Paired Single-B-Cell Transcriptomics And Receptor Sequencing Reveal Activation States And Clonal Signatures That Characterize B Cells In Acute Myeloid Leukemia, Shengnan Guo, Gopi S Mohan, Bofei Wang, Tianhao Li, Naval Daver, Yuting Zhao, Patrick K Reville, Dapeng Hao, Hussein A Abbas

Faculty, Staff and Student Publications

BACKGROUND: Acute myeloid leukemia (AML) is associated with a dismal prognosis. Immune checkpoint blockade (ICB) to induce antitumor activity in AML patients has yielded mixed results. Despite the pivotal role of B cells in antitumor immunity, a comprehensive assessment of B lymphocytes within AML's immunological microenvironment along with their interaction with ICB remains rather constrained.

METHODS: We performed an extensive analysis that involved paired single-cell RNA and B-cell receptor (BCR) sequencing on 52 bone marrow aspirate samples. These samples included 6 from healthy bone marrow donors (normal), 24 from newly diagnosed AML patients (NewlyDx), and 22 from 8 relapsed or …

Bactericidal Efficacy Of The Combination Of Maresin-Like Proresolving Mediators And Carbenicillin Action On Biofilm-Forming Burn Trauma Infection-Related Bacteria, Anbu Mozhi Thamizhchelvan, Abdul Razak Masoud, Shanchun Su, Yan Lu, Hongying Peng, Yuichi Kobayashi, Yu Wang, Nathan K. Archer, Song Hong

School of Medicine Faculty Publications

Biofilm-associated bacterial infections are the major reason for treatment failure in many diseases including burn trauma infections. Uncontrolled inflammation induced by bacteria leads to materiality, tissue damage, and chronic diseases. Specialized proresolving mediators (SPMs), including maresin-like lipid mediators (MarLs), are enzymatically biosynthesized from omega-3 essential long-chain polyunsaturated fatty acids, especially docosahexaenoic acid (DHA), by macrophages and other leukocytes. SPMs exhibit strong inflammation-resolving activities, especially inflammation provoked by bacterial infection. In this study, we explored the potential direct inhibitory activities of three MarLs on Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa and Escherichia coli) bacteria in their biofilms that are leading …

Amiodarone And Dronedarone Causes Liver Injury With Distinctly Different Clinical Presentations, Alexander Pop, Dina Halegoua-De Marzio, Huiman Barnhart, David Kleiner, Mark Avigan, Jiezhun Gu, Naga Chalasani, Jawad Ahmad, Robert J. Fontana, William Lee, A. Sidney Barritt, Francisco Durazo, Paul H. Hayashi, Victor J. Navarro

Einstein Health Papers

OBJECTIVE: To describe hepatotoxicity due to amiodarone and dronedarone from the DILIN and the US FDA's surveillance database.

METHODS: Hepatotoxicity due to amiodarone and dronedarone enrolled in the U.S. Drug Induced Liver Injury Network (DILIN) from 2004 to 2020 are described. Dronedarone hepatotoxicity cases associated with liver biopsy results were obtained from the FDA Adverse Event Reporting System (FAERS) from 2009 to 2020.

RESULTS: Among DILIN's 10 amiodarone and 3 dronedarone DILIN cases, the latency for amiodarone was longer than with dronedarone (388 vs 119 days, p = 0.50) and the median ALT at DILI onset was significantly lower with …

Androgen Drives Melanoma Invasiveness And Metastatic Spread By Inducing Tumorigenic Fucosylation, Qian Liu

USF Tampa Graduate Theses and Dissertations

Melanoma incidence and mortality rates are historically higher for men than women, with an estimated ~47% more new cases and twice the lethality in men in the US in 2023. Consistent with these discrepancies, emerging studies have highlighted the tumorigenic role of the male sex hormone androgen and its receptor (AR) in promoting melanoma aggressiveness. However, underlying cellular and molecular mechanisms and their precise pathological contributions are not well-defined. We recently discovered a sex-associated disparity in melanoma fucosylation, the post-translational modification of proteins with the dietary sugar L-fucose. Fucosylation, the conjugation of fucose moieties onto different glycan linkages on target …

Potential Value Of A Rapid Syndromic Multiplex Pcr For The Diagnosis Of Native And Prosthetic Joint Infections: A Real-World Evidence Study, Stéphanie Pascual, Brooklyn Noble, Nusreen Ahmad-Saeed, Catherine Aldridge, Simone Ambretti, Sharon Amit, Rachel Annett, Shaan Ashk O'Shea, Anna Maria Barbui, Gavin Barlow, Lucinda Barrett, Mario Berth, Alessandro Bondi, Nicola Boran, Sara E Boyd, Catarina Chaves, Martin Clauss, Peter Davies, Ileana T Dianzo-Delgado, Jaime Esteban, Stefan Fuchs, Lennart Friis-Hansen, Daniel Goldenberger, Andrej Golle, Juha O Groonroos, Ines Hoffmann, Tomer Hoffmann, Harriet Hughes, Marina Ivanova, Peter Jezek, Gwennan Jones, Zeynep Ceren Karahan, Cornelia Lass-Flörl, Frédéric Laurent, Laura Leach, Matilde Lee Horsbøll Pedersen, Caroline Loiez, Maureen Lynch, Robert J Maloney, Martin Marsh, Olivia Milburn, Shanine Mitchell, Luke S P Moore, Lynn Moffat, Marianna Murdjeva, Michael E Murphy, Deepa Nayar, Giacomo Nigrisoli, Fionnuala O'Sullivan, Büşra Öz, Teresa Peach, Christina Petridou, Mojgan Prinz, Mitja Rak, Niamh Reidy, Gian Maria Rossolini, Anne-Laure Roux, Patricia Ruiz-Garbajosa, Kordo Saeed, Llanos Salar-Vidal, Carlos Salas Venero, Mathyruban Selvaratnam, Eric Senneville, Peter Starzengruber, Ben Talbot, Vanessa Taylor, Rihard Trebše, Deborah Wearmouth, Birgit Willinger, Marjan Wouthuyzen-Bakker, Brianne Couturier, Florence Allantaz

Faculty, Staff and Student Publications

Introduction: The BIOFIRE Joint Infection (JI) Panel is a diagnostic tool that uses multiplex-PCR testing to detect microorganisms in synovial fluid specimens from patients suspected of having septic arthritis (SA) on native joints or prosthetic joint infections (PJIs). Methods: A study was conducted across 34 clinical sites in 19 European and Middle Eastern countries from March 2021 to June 2022 to assess the effectiveness of the BIOFIRE JI Panel. Results: A total of 1527 samples were collected from patients suspected of SA or PJI, with an overall agreement of 88.4 % and 85 % respectively between the …

Epigenome-Wide Association Study Identifies Neonatal Dna Methylation Associated With Two-Year Attention Problems In Children Born Very Preterm., Marie Camerota, Barry M. Lester, Francisco Xavier Castellanos, Brian S. Carter, Jennifer Check, Jennifer Helderman, Julie A. Hofheimer, Elisabeth C. Mcgowan, Charles R. Neal, Steven L. Pastyrnak, Lynne M. Smith, Thomas Michael O'Shea, Carmen J. Marsit, Todd M. Everson

Manuscripts, Articles, Book Chapters and Other Papers

Prior research has identified epigenetic predictors of attention problems in school-aged children but has not yet investigated these in young children, or children at elevated risk of attention problems due to preterm birth. The current study evaluated epigenome-wide associations between neonatal DNA methylation and attention problems at age 2 years in children born very preterm. Participants included 441 children from the Neonatal Neurobehavior and Outcomes in Very Preterm Infants (NOVI) Study, a multi-site study of infants born < 30 weeks gestational age. DNA methylation was measured from buccal swabs collected at NICU discharge using the Illumina MethylationEPIC Bead Array. Attention problems were assessed at 2 years of adjusted age using the attention problems subscale of the Child Behavior Checklist (CBCL). After adjustment for multiple testing, DNA methylation at 33 CpG sites was associated with child attention problems. Differentially methylated CpG sites were located in genes previously linked to physical and mental health, including several genes associated with ADHD in prior epigenome-wide and genome-wide association studies. Several CpG sites were located in genes previously linked to exposure to prenatal risk factors in the NOVI sample. Neonatal epigenetics measured at NICU discharge could be useful in identifying preterm children at risk for long-term attention problems and related psychiatric disorders, who could benefit from early prevention and intervention efforts.