Pathology Commons^™

T-Cell-Rich Hodgkin Lymphoma With Features Of Classic Hodgkin Lymphoma And Nodular Lymphocyte-Predominant Hodgkin Lymphoma: A Borderline Category With Overlapping Morphologic And Immunophenotypic Features, Siba El Hussein, Hong Fang, Fatima Zahra Jelloul, Wei Wang, Sanam Loghavi, Roberto N Miranda, Jonathan W Friedberg, W Richard Burack, Andrew G Evans, Jie Xu, L Jeffrey Medeiros

Faculty, Staff and Student Publications

Context.—: It is known that a subset of cases of classic Hodgkin lymphoma (CHL) with B-cell-rich nodules (lymphocyte-rich CHL) exhibits morphologic and immunophenotypic features that overlap with nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL), raising diagnostic difficulties that can be resolved in most cases by performing an adequate battery of immunohistochemical studies.

Objective.—: To fully characterize cases of T-cell-rich Hodgkin lymphoma where a specific diagnosis of NLPHL (ie, pattern D) or CHL could not be made even after complete immunophenotypic investigation.

Design.—: The clinical, immunomorphologic, and molecular (when applicable) presentation of 3 cases of T-cell-rich Hodgkin lymphoma was thoroughly investigated.

Results.—: These …

Promoting Resilience In Stress Management For Adolescents With Type 1 Diabetes: A Randomized Clinical Trial, Joyce P Yi-Frazier, Marisa E Hilliard, Maeve B O'Donnell, Chuan Zhou, Britney M Ellisor, Samantha Garcia Perez, Brenda Duran, Yuliana Rojas, Faisal S Malik, Daniel J Desalvo, Catherine Pihoker, Miranda C Bradford, Samantha Scott, Sridevi Devaraj, Abby R Rosenberg

Faculty, Staff and Students Publications

IMPORTANCE: Type 1 diabetes (T1D) requires demanding self-management health behaviors, and adolescents with T1D are at risk for poor psychosocial and medical outcomes. Developing resilience skills may help adolescents with T1D and elevated distress navigate common stressors and achieve positive outcomes.

OBJECTIVE: To test the efficacy of the Promoting Resilience in Stress Management (PRISM) intervention on levels of hemoglobin A1c (HbA1c), diabetes distress, self-management behaviors, resilience, and quality of life among adolescents.

DESIGN, SETTING, AND PARTICIPANTS: This phase 3, parallel, 1:1 randomized clinical trial that followed up 172 participants for 12 months was conducted from January 1, 2020, to November …

Challenges Of Insulin-Like Growth Factor-1 Testing, Rongrong Huang, Junyan Shi, Ruhan Wei, Jieli Li

Faculty, Staff and Students Publications

Insulin-like growth factor 1 (IGF-1), primarily synthesized in the liver, was initially discovered due to its capacity to replicate the metabolic effects of insulin. Subsequently, it emerged as a key regulator of the actions of growth hormone (GH), managing critical processes like cell proliferation, differentiation, and apoptosis. Notably, IGF-1 displays a longer half-life compared to GH, making it less susceptible to factors that may affect GH concentrations. Consequently, the measurement of IGF-1 proves to be more specific and sensitive when diagnosing conditions such as acromegaly or GH deficiency. The recognition of the existence of IGFBPs and their potential to interfere …

Developing The Openflexure Microscope Towards Medical Use: Technical And Social Challenges Of Developing Globally Accessible Hardware For Healthcare, Joe Knapper, Freya Whiteford, Daniel Rosen, William Wadsworth, Julian Stirling, Catherine Mkindi, Joram Mduda, Valerian L Sanga, Paul T Nyakyi, Thomas Hervé Mboa Nkoudou, Elisée Jafsia, Stephane Fadanka, Kelsey Hummel, Sharmila Anandasabapathy, Richard Bowman

Faculty, Staff and Students Publications

The OpenFlexure Microscope is an accessible, three-dimensional-printed robotic microscope, with sufficient image quality to resolve diagnostic features including parasites and cancerous cells. As access to lab-grade microscopes is a major challenge in global healthcare, the OpenFlexure Microscope has been developed to be manufactured, maintained and used in remote environments, supporting point-of-care diagnosis. The steps taken in transforming the hardware and software from an academic prototype towards an accepted medical device include addressing technical and social challenges, and are key for any innovation targeting improved effectiveness in low-resource healthcare. This article is part of the Theo Murphy meeting issue 'Open, reproducible …

Utility Of Cystatin C-Based Equation For The Estimation Of Glomerular Filtration Rate In A Pediatric Population, Ridwan B Ibrahim, Poyyapakkam Srivaths, Estella Tam, Sridevi Devaraj

Faculty, Staff and Students Publications

Background: The accurate assessment of kidney function is vital for the early detection of kidney damage. The estimated glomerular filtration rate GFR (eGFR) from serum cystatin C (CysC) and creatinine-based equations are commonly used in clinical practice as an alternative to the invasive measured glomerular filtration rate (mGFR), which is the usually accepted overall best index of kidney function in health and disease. Recently the CKiD under 25 (CkiD U25) equations have been shown to perform well in children and young adults with chronic kidney disease (CKD). In this focused report, we evaluated the performance of the CkiD U25 equations …

Implementation, Evolution, And Laboratory Performance Of Methods-Based Proficiency Testing For Next-Generation Sequencing Detection Of Germline Sequence Variants, Karen D Tsuchiya, Birgit Funke, Madhuri Hegde, Avni Santani, Rhona J Souers, Szabolcs Szelinger, Jaimie Halley, Qin Zhao, Nicole Mot, Angshumoy Roy, Vanessa L Smith, Bing M Zhang, Karl Voelkerding, Ann M Moyer

Faculty, Staff and Students Publications

Context.—: Next-generation sequencing (NGS)-based assays are used for diagnosis of diverse inherited disorders. Limited data are available pertaining to interlaboratory analytical performance of these assays.

Objective.—: To report on the College of American Pathologists (CAP) NGS Germline Program, which is methods based, and explore the evolution in laboratory testing practices.

Design.—: Results from the NGS Germline Program from 2016-2020 were analyzed for interlaboratory analytical performance. Self-reported laboratory testing practices were also evaluated.

Results.—: From 2016-2020, a total of 297 laboratories participated in at least 1 program mailing. Of the 289 laboratories that provided information on tests offered, 138 (47.8%) offered …

Anticoagulant Medications: The Pediatric Extracorporeal Membrane Oxygenation Anticoagulation Collaborative Consensus Conference, Katherine Cashen, Arun Saini, Leonardo R Brandão, Jennifer Le, Paul Monagle, Katie M Moynihan, Lindsay M Ryerson, Alison Gehred, Elizabeth Lyman, Jennifer A Muszynski, Peta M A Alexander, Heidi J Dalton

Faculty, Staff and Students Publications

OBJECTIVES: To derive systematic-review informed, modified Delphi consensus regarding the medications used for anticoagulation for pediatric extracorporeal membrane oxygenation (ECMO) for the Pediatric ECMO Anticoagulation CollaborativE (PEACE).

DATA SOURCES: A structured literature search was performed using PubMed, EMBASE, and Cochrane Library (CENTRAL) databases from January 1988 to May 2021.

STUDY SELECTION: Included studies assessed anticoagulation used in pediatric ECMO.

DATA EXTRACTION: Two authors reviewed all citations independently, with a third reviewer adjudicating any conflicts. Eighteen references were used for data extraction as well as for creation of recommendations. Evidence tables were constructed using a standardized data extraction form.

DATA SYNTHESIS: …

Management Of Extracorporeal Membrane Oxygenation Anticoagulation In The Perioperative Period: The Pediatric Extracorporeal Membrane Oxygenation Anticoagulation Collaborative Consensus Conference, Ariane Willems, Marc M Anders, Alejandro V Garcia, Adam M Vogel, Andrew R Yates, Jennifer A Muszynski, Peta M A Alexander, Katherine Steffen, Sitaram Emani, Alison Gehred, Elizabeth Lyman, Lakshmi Raman

Faculty, Staff and Students Publications

OBJECTIVES: To derive systematic review-informed, modified Delphi consensus regarding the management of children on extracorporeal membrane oxygenation (ECMO) undergoing invasive procedures or interventions developed by the Pediatric Anticoagulation on ECMO CollaborativE (PEACE) Consensus Conference.

DATA SOURCES: A structured literature search was performed using PubMed, EMBASE, and Cochrane Library (CENTRAL) databases from January 1988 to May 2021.

STUDY SELECTION: ECMO anticoagulation and hemostasis management in the perioperative period and during procedures.

DATA EXTRACTION: Two authors reviewed all citations independently, with a third independent reviewer resolving any conflicts. Seventeen references were used for data extraction and informed recommendations. Evidence tables were constructed …

Priorities For Clinical Research In Pediatric Extracorporeal Membrane Oxygenation Anticoagulation From The Pediatric Extracorporeal Membrane Oxygenation Anticoagulation Collaborative Consensus Conference, Jennifer A Muszynski, Melania M Bembea, Alison Gehred, Elizabeth Lyman, Katherine Cashen, Ira M Cheifetz, Heidi J Dalton, Adam S Himebauch, Oliver Karam, Katie M Moynihan, Marianne E Nellis, Caroline Ozment, Lakshmi Raman, Natalie E Rintoul, Ahmed Said, Arun Saini, Marie E Steiner, Ravi R Thiagarajan, Kevin Watt, Ariane Willems, Nicole D Zantek, Ryan P Barbaro, Katherine Steffen, Adam M Vogel, Peta M A Alexander

Faculty, Staff and Students Publications

OBJECTIVES: To identify and prioritize research questions for anticoagulation and hemostasis management of neonates and children supported with extracorporeal membrane oxygenation (ECMO) from the Pediatric ECMO Anticoagulation CollaborativE (PEACE) consensus.

DATA SOURCES: Systematic review was performed using PubMed, EMBASE, and Cochrane Library (CENTRAL) databases from January 1988 to May 2021, followed by serial consensus conferences of international, interprofessional experts in the management of ECMO for critically ill neonates and children.

STUDY SELECTION: The management of ECMO anticoagulation for critically ill neonates and children.

DATA EXTRACTION: Within each of the eight subgroups, two authors reviewed all citations independently, with a third …

Executive Summary: The Pediatric Extracorporeal Membrane Oxygenation Anticoagulation Collaborative (Peace) Consensus Conference, Peta M A Alexander, Melania M Bembea, Katherine Cashen, Ira M Cheifetz, Heidi J Dalton, Adam S Himebauch, Oliver Karam, Katie M Moynihan, Marianne E Nellis, Caroline Ozment, Lakshmi Raman, Natalie E Rintoul, Ahmed S Said, Arun Saini, Marie E Steiner, Ravi R Thiagarajan, Kevin Watt, Ariane Willems, Nicole D Zantek, Ryan P Barbaro, Katherine Steffen, Adam M Vogel, Christopher Almond, Marc M Anders, Gail M Annich, Leonardo R Brandão, Wayne Chandler, Megan Delaney, Robert Digeronimo, Sitaram Emani, Samir K Gadepalli, Alejandro V Garcia, Bereketeab Haileselassie, Robert Hyslop, Martin C J Kneyber, Lisa Baumann Kreuziger, Jennifer Le, Laura Loftis, Ali B V Mcmichael, D Michael Mcmullan, Paul Monagle, Kathleen Nicol, Matthew L Paden, Jason Patregnani, John Priest, Leslie Raffini, Lindsay M Ryerson, Steven R Sloan, Jun Teruya, Andrew R Yates, Alison Gehred, Elizabeth Lyman, Jennifer A Muszynski

Faculty, Staff and Students Publications

OBJECTIVES: To present recommendations and consensus statements with supporting literature for the clinical management of neonates and children supported with extracorporeal membrane oxygenation (ECMO) from the Pediatric ECMO Anticoagulation CollaborativE (PEACE) consensus conference.

DATA SOURCES: Systematic review was performed using PubMed, Embase, and Cochrane Library (CENTRAL) databases from January 1988 to May 2021, followed by serial meetings of international, interprofessional experts in the management ECMO for critically ill children.

STUDY SELECTION: The management of ECMO anticoagulation for critically ill children.

DATA EXTRACTION: Within each of eight subgroup, two authors reviewed all citations independently, with a third independent reviewer resolving any …

Individual Disruption Of 12 Testis-Enriched Genes Via The Crispr/Cas9 System Does Not Affect The Fertility Of Male Mice, Akira Suzuki, Norikazu Yabuta, Keisuke Shimada, Daisuke Mashiko, Keizo Tokuhiro, Yuki Oyama, Haruhiko Miyata, Thomas X Garcia, Martin M Matzuk, Masahito Ikawa

Faculty, Staff and Students Publications

More than 1200 genes have been shown in the database to be expressed predominantly in the mouse testes. Advances in genome editing technologies such as the CRISPR/Cas9 system have made it possible to create genetically engineered mice more rapidly and efficiently than with conventional methods, which can be utilized to screen genes essential for male fertility by knocking out testis-enriched genes. Finding such genes related to male fertility would not only help us understand the etiology of human infertility but also lead to the development of male contraceptives. In this study, we generated knockout mice for 12 genes (Acrv1, Adgrf3, …

Comparison Of Cefiderocol In-Vitro Susceptibility Testing Modalities, Nicholas S Teran, Linh Vuong, Kady Phe, Todd M Lasco, William R Miller, Vincent H Tam

Faculty, Staff and Students Publications

No abstract provided.

Reversible Male Contraception By Targeted Inhibition Of Serine/Threonine Kinase 33, Angela F Ku, Kiran L Sharma, Hai Minh Ta, Courtney M Sutton, Kurt M Bohren, Yong Wang, Srinivas Chamakuri, Ruihong Chen, John M Hakenjos, Ravikumar Jimmidi, Katarzyna Kent, Feng Li, Jian-Yuan Li, Lang Ma, Chandrashekhar Madasu, Murugesan Palaniappan, Stephen S Palmer, Xuan Qin, Matthew B Robers, Banumathi Sankaran, Zhi Tan, Yasmin M Vasquez, Jian Wang, Jennifer Wilkinson, Zhifeng Yu, Qiuji Ye, Damian W Young, Mingxing Teng, Choel Kim, Martin M Matzuk

Faculty, Staff and Students Publications

Men or mice with homozygous serine/threonine kinase 33 (STK33) mutations are sterile owing to defective sperm morphology and motility. To chemically evaluate STK33 for male contraception with STK33-specific inhibitors, we screened our multibillion-compound collection of DNA-encoded chemical libraries, uncovered potent STK33-specific inhibitors, determined the STK33 kinase domain structure bound with a truncated hit CDD-2211, and generated an optimized hit CDD-2807 that demonstrates nanomolar cellular potency (half-maximal inhibitory concentration = 9.2 nanomolar) and favorable metabolic stability. In mice, CDD-2807 exhibited no toxicity, efficiently crossed the blood-testis barrier, did not accumulate in brain, and induced a reversible contraceptive effect that …

Seasonality, Clinical Characteristics, And Outcomes Of Respiratory Syncytial Virus Disease By Subtype Among Children Aged <5 Years: New Vaccine Surveillance Network, United States, 2016-2020., Ariana P. Toepfer, Justin Z. Amarin, Andrew J. Spieker, Laura S. Stewart, Mary Allen Staat, Elizabeth P. Schlaudecker, Geoffrey A. Weinberg, Peter G. Szilagyi, Janet A. Englund, Eileen J. Klein, Marian G. Michaels, John V. Williams, Rangaraj Selvarangan, Christopher J. Harrison, Joana Y. Lively, Pedro A. Piedra, Vasanthi Avadhanula, Brian Rha, James Chappell, Meredith Mcmorrow, Heidi Moline, Natasha B. Halasa

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Respiratory syncytial virus (RSV) is a leading cause of acute respiratory illnesses in children. RSV can be broadly categorized into 2 major subtypes: A and B. RSV subtypes have been known to cocirculate with variability in different regions of the world. Clinical associations with viral subtype have been studied among children with conflicting findings such that no conclusive relationships between RSV subtype and severity have been established.

METHODS: During 2016-2020, children aged/guardian interviews, chart reviews, and collection of midturbinate nasal plus/minus throat swabs for RSV (RSV-A, RSV-B, and untyped) using reverse transcription polymerase chain reaction.

RESULTS: Among 6398 RSV-positive …

Rna Sequencing For Solid Tumor Fusion Gene Detection: Proficiency Testing Practice And Performance Comparison, Julia A Bridge, Kevin C Halling, Joel T Moncur, Rhona J Souers, Meera R Hameed, Helen Fernandes, Angshumoy Roy, Lea Surrey, Laura J Tafe, Patricia Vasalos, Dolores H Lopez-Terrada

Faculty, Staff and Students Publications

Context: Next-generation sequencing-based approaches using RNA have increasingly been used by clinical laboratories for the detection of fusion genes, intragenic rearrangements, and exon-skipping events. Correspondingly, the College of American Pathologists (CAP) has advanced RNA sequencing proficiency testing (PT) to ensure optimal performance of these assays.

Objective: To report on laboratory performance and practices of RNA sequencing for the detection of fusion genes, intragenic rearrangements, and exon-skipping events using CAP PT data from 8 mailings (2018-A through 2021-B).

Design: CAP PT RNA sequencing program results from 153 laboratories across 24 proficiency test specimens, interrogating 22 distinct engineered fusion transcripts, were analyzed …

Diffuse Hemispheric Glioma With H3 P.K28m (K27m) Mutation: Unusual Non-Midline Presentation Of Diffuse Midline Glioma, H3 K27m-Altered?, Kliment Donev, Vanitha Sundararajan, Derek Johnson, Jagadheshwar Balan, Meagan Chambers, Vera A Paulson, Kathryn P Scherpelz, Zied Abdullaev, Martha Quezado, Patrick J Cimino, Drew Pratt, Ediel Valerio, João Vıctor Alves De Castro, Dirce Maria Carraro, Giovana Tardin Torrezan, Beatriz Martins Wolff, Leslie Domenici Kulikowski, Felipe D'Almeida Costa, Kenneth Aldape, Cristiane M Ida

Neuroscience Articles

Diffuse midline glioma, H3 K27-altered (DMG-H3 K27) is an aggressive group of diffuse gliomas that predominantly occurs in pediatric patients, involves midline structures, and displays loss of H3 p.K28me3 (K27me3) expression by immunohistochemistry and characteristic genetic/epigenetic profile. Rare examples of a diffuse glioma with an H3 p.K28M (K27M) mutation and without involvement of the midline structures, so-called "diffuse hemispheric glioma with H3 p.K28M (K27M) mutation" (DHG-H3 K27), have been reported. Herein, we describe 2 additional cases of radiologically confirmed DHG-H3 K27 and summarize previously reported cases. We performed histological, immunohistochemical, molecular, and DNA methylation analysis and provided clinical follow-up in …

The Dementia Care Study (D-Care): Recruitment Strategies And Demographic Characteristics Of Participants In A Pragmatic Randomized Trial Of Dementia Care, Mia Yang, Rafael Samper-Ternent, Elena Volpi, Aval-Na'ree Green, Maya Lichtenstein, Katy Araujo, Pamela Borek, Peter Charpentier, James Dziura, Thomas M Gill, Rebecca Galloway, Erich J Greene, Kristin Lenoir, Peter Peduzzi, Can Meng, Jordan Reese, Amy Shelton, Eleni A Skokos, Jenny Summapund, Erin Unger, David B Reuben, Jeff D Williamson, Alan B Stevens

Faculty, Staff and Student Publications

INTRODUCTION: Pragmatic research studies that include diverse dyads of persons living with dementia (PLWD) and their family caregivers are rare.

METHODS: Community-dwelling dyads were recruited for a pragmatic clinical trial evaluating three approaches to dementia care. Four clinical trial sites used shared and site-specific recruitment strategies to enroll health system patients.

RESULTS: Electronic health record (EHR) queries of patients with a diagnosis of dementia and engagement of their clinicians were the main recruitment strategies. A total of 2176 dyads were enrolled, with 80% recruited after the onset of the pandemic. PLWD had a mean age of 80.6 years (SD 8.5), …

Bringing Proteomics To Bear On Male Fertility: Key Lessons, Rachel Parkes, Thomas X Garcia

Faculty, Staff and Students Publications

Introduction: Male infertility is a major public health concern globally. Proteomics has revolutionized our comprehension of male fertility by identifying potential infertility biomarkers and reproductive defects. Studies comparing sperm proteome with other male reproductive tissues have the potential to refine fertility diagnostics and guide infertility treatment development.

Areas covered: This review encapsulates literature using proteomic approaches to progress male reproductive biology. Our search methodology included systematic searches of databases such as PubMed, Scopus, and Web of Science for articles up to 2023. Keywords used included 'male fertility proteomics,' 'spermatozoa proteome,' 'testis proteomics,' 'epididymal proteomics,' and 'non-hormonal male contraception.' Inclusion criteria …

Accuracy Of Influenza Icd-10 Diagnosis Codes In Identifying Influenza Illness In Children., James W. Antoon, Tess Stopczynski, Justin Z. Amarin, Laura S. Stewart, Julie A. Boom, Leila C. Sahni, Marian G. Michaels, John V. Williams, Janet A. Englund, Eileen J. Klein, Mary A. Staat, Elizabeth P. Schlaudecker, Rangaraj Selvarangan, Jennifer E. Schuster, Geoffrey A. Weinberg, Peter G. Szilagyi, Ariana Perez, Heidi L. Moline, Andrew J. Spieker, Carlos G. Grijalva, Samantha M. Olson, Natasha B. Halasa

Manuscripts, Articles, Book Chapters and Other Papers

IMPORTANCE: Studies of influenza in children commonly rely on coded diagnoses, yet the ability of International Classification of Diseases, Ninth Revision codes to identify influenza in the emergency department (ED) and hospital is highly variable. The accuracy of newer International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10) codes to identify influenza in children is unknown.

OBJECTIVE: To determine the accuracy of ICD-10 influenza discharge diagnosis codes in the pediatric ED and inpatient settings.

DESIGN, SETTING, AND PARTICIPANTS: Children younger than 18 years presenting to the ED or inpatient settings with fever and/or respiratory symptoms at 7 …

Affinity-Tagged Smad1 And Smad5 Mouse Lines Reveal Transcriptional Reprogramming Mechanisms During Early Pregnancy, Zian Liao, Suni Tang, Kaori Nozawa, Keisuke Shimada, Masahito Ikawa, Diana Monsivais, Martin Matzuk

Faculty, Staff and Students Publications

Endometrial decidualization, a prerequisite for successful pregnancies, relies on transcriptional reprogramming driven by progesterone receptor (PR) and bone morphogenetic protein (BMP)-SMAD1/SMAD5 signaling pathways. Despite their critical roles in early pregnancy, how these pathways intersect in reprogramming the endometrium into a receptive state remains unclear. To define how SMAD1 and/or SMAD5 integrate BMP signaling in the uterus during early pregnancy, we generated two novel transgenic mouse lines with affinity tags inserted into the endogenous SMAD1 and SMAD5 loci (Smad1^HA/HA and Smad5^PA/PA). By profiling the genome-wide distribution of SMAD1, SMAD5, and PR in the mouse uterus, we demonstrated …

Case Of Nocturnal Emesis, Weight Loss, And Aspiration Pneumonia, Roman Babayev, Sharonda Taylor, Elizabeth V Franklin

Faculty, Staff and Students Publications

No abstract provided.

Genomic Data In The All Of Us Research Program, All Of Us Research Program Genomics Investigators

Faculty, Staff and Students Publications

Comprehensively mapping the genetic basis of human disease across diverse individuals is a long-standing goal for the field of human genetics1–4. The All of Us Research Program is a longitudinal cohort study aiming to enrol a diverse group of at least one million individuals across the USA to accelerate biomedical research and improve human health5,6. Here we describe the programme’s genomics data release of 245,388 clinical-grade genome sequences. This resource is unique in its diversity as 77% of participants are from communities that are historically under-represented in biomedical research and 46% are …

Fine-Needle Aspiration Of Amyloidoma: A Critical Analysis, Nisha S Ramani, Bhuvaneswari Krishnan

Faculty, Staff and Students Publications

Background: Amyloid, presenting as a mass, is termed amyloidoma. Among the reported cases, fine-needle aspiration (FNA) of amyloid is often misinterpreted as acellular nondiagnostic material.

Methods: A computer search of all FNAs was performed and cases diagnosed as amyloidoma were identified.

Results: Among 11,956 cases and 20,634 FNAs, there were six cases and 12 FNAs of amyloidoma. One case with mucin/myxoid matrix was misinterpreted as amyloid, which on our review was Congo red negative. All five other cases of amyloidoma were adequate for evaluation. The smears showed most of the aspirated contents in the middle of the slide and it …

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. …

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 …

Notes From The Field: Reemergence Of Mycoplasma Pneumoniae Infections In Children And Adolescents After The Covid-19 Pandemic, United States, 2018-2024., Chris Edens, Benjamin R. Clopper, Jourdan Devies, Alvaro Benitez, Erin R. Mckeever, Dylan Johns, Bernard Wolff, Rangaraj Selvarangan, Jennifer E. Schuster, Geoffrey A. Weinberg, Peter G. Szilagyi, Fatimah S. Dawood, Lakshmi Radhakrishnan, Christina Quigley, Leila C. Sahni, Natasha Halasa, Laura S. Stewart, Meredith L. Mcmorrow, Brett Whitaker, Danielle M. Zerr, Vasanthi Avadhanula, John V. Williams, Marian G. Michaels, Aaron Kite-Powell, Janet A. Englund, Mary Allen Staat, Kathleen Hartnett, Heidi L. Moline, Adam L. Cohen, Maureen Diaz

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.

New Sepsis Diagnostics And Their Impacts On Clinical Decision-Making And Treatment Protocols, Allison B Chambliss, Sridevi Devaraj, Jeremiah S Hinson, Sophie E Katz, Russell B Kerbel, Nathan A Ledeboer

Faculty, Staff and Students Publications

No abstract provided.

Sox11+ Large B-Cell Neoplasms: Cyclin D1-Negative Blastoid/Pleomorphic Mantle Cell Lymphoma Or Large B-Cell Lymphoma?, Shaoying Li, Guilin Tang, Preetesh Jain, Pei Lin, Jie Xu, Roberto N Miranda, Joanne Cheng, C Cameron Yin, M James You, Michael L Wang, L Jeffrey Medeiros

Faculty, Staff and Student Publications

Large or blastoid B-cell neoplasms that are SOX11+ are a diagnostic dilemma and raise a differential diagnosis of cyclin D1-negative blastoid/pleomorphic mantle cell lymphoma (MCL) versus diffuse large B-cell lymphoma (DLBCL) or blastoid high-grade B-cell lymphoma (HGBL) with aberrant SOX11 expression. Here we report a study cohort of 13 SOX11+ large/blastoid B-cell neoplasms. Fluorescence in situ hybridization analysis was negative for CCND1 rearrangement in all 13 cases; 1 of 8 (12.5%) cases tested showed CCND2 rearrangement and 2 (25%) cases had extracopies of CCND2. Gene expression profiling showed that the study group had a gene expression signature similar to cyclin …

Invasive Group A Streptococcus In Infants Less Than 1-Year Of Age From 2012 To 2022: A Single-Center Experience, Taylor Nack, Jesus G Vallejo, James Dunn, Anthony R Flores, J Chase Mcneil

Faculty, Staff and Students Publications

The incidence of invasive Group A Streptococcus (iGAS) has varied throughout the COVID-19 pandemic. We reviewed iGAS infections in infants ≤1 year from 2012 to 2022. Twenty-five percent of cases occurred in the last quarter of 2022. Pneumonia (21.8%) was the most common presentation. Twenty-one patients (65.6%) were successfully transitioned to oral antibiotics.

Genetics And Pathologic Landscape Of Lineage Switch Of Acute Leukemia During Therapy, Ting Zhou, Choladda V Curry, Mahsa Khanlari, Min Shi, Wei Cui, Deniz Peker, Weina Chen, Endi Wang, Juehua Gao, Qi Shen, Wei Xie, Fatima Z Jelloul, Rebecca L King, Ji Yuan, Xiaoqiong Wang, Chen Zhao, Ifeyinwa E Obiorah, Elizabeth L Courville, Eric Nomura, Sindhu Cherian, Mina L Xu, W Richard Burack, Hong-Xing Liu, Elias J Jabbour, Koichi Takahashi, Wei Wang, Sa A Wang, Joseph D Khoury, L Jeffrey Medeiros, Shimin Hu

Faculty, Staff and Students Publications

No abstract provided.