Digital Commons Network^™

Stareg: Statistical Replicability Analysis Of High Throughput Experiments With Applications To Spatial Transcriptomic Studies, Yan Li, Xiang Zhou, Rui Chen, Xianyang Zhang, Hongyuan Cao

Faculty, Staff and Students Publications

Replicable signals from different yet conceptually related studies provide stronger scientific evidence and more powerful inference. We introduce STAREG, a statistical method for replicability analysis of high throughput experiments, and apply it to analyze spatial transcriptomic studies. STAREG uses summary statistics from multiple studies of high throughput experiments and models the the joint distribution of p-values accounting for the heterogeneity of different studies. It effectively controls the false discovery rate (FDR) and has higher power by information borrowing. Moreover, it provides different rankings of important genes. With the EM algorithm in combination with pool-adjacent-violator-algorithm (PAVA), STAREG is scalable to datasets …

Evaluating The Interaction Between Hemorrhagic Transformation And Cerebral Edema On Functional Outcome After Ischemic Stroke, Amrit Avula, Quoc Bui, Atul Kumar, Yasheng Chen, Ali Hamzehloo, Julien Cifarelli, Laura Heitsch, Agnieszka Slowik, Daniel Strbian, Jin-Moo Lee, Rajat Dhar

2020-Current year OA Pubs

BACKGROUND: Hemorrhagic transformation (HT) and cerebral edema (CED) are both major complications following ischemic stroke, but few studies have evaluated their overlap. We evaluated the frequency and predictors of CED/HT overlap and whether their co-occurrence impacts functional outcome more than each in isolation.

METHODS: 892 stroke patients enrolled in a prospective study had follow-up CT imaging evaluated for HT and CED; the latter was quantified using the ratio of hemispheric CSF volumes (with hemispheric CSF ratio < 0.90 used as the CED threshold). The interaction between HT and CED on functional outcome (using modified Rankin Scale at 3 months) was compared to that for each condition separately.

RESULTS: Among the 275 (31%) who developed HT, 233 (85%) manifested hemispheric CSF ratio < 0.9 (CED/HT), with this overlap group representing half of the 475 with measurable CED. Higher baseline NIHSS scores and larger infarct volumes were observed in the CED/HT group compared with those with CED or HT alone. Functional outcome was worse in those with CED/HT [median mRS 3 (IQR 2-5)] than those with CED [median 2 (IQR 1-4)] or HT alone [median 1 (IQR 0-2), p < 0.0001]. Overlap of CED/HT independently predicted worse outcome [OR 1.89 (95% CI: 1.12-3.18), p = 0.02] while HT did not; however, CED/HT was no longer associated with worse outcome after adjusting for severity of CED [adjusted OR 0.35 (95% CI: 0.23, 0.51) per 0.21 lower hemispheric CSF ratio, p < 0.001].

CONCLUSIONS: Most stroke patients with HT also have measurable CED. …

Unraveling The Link: Seizure Characteristics And Ammonia Levels In Urea Cycle Disorder During Hyperammonemic Crises, Mongkol Chanvanichtrakool, John M Schreiber, Wei-Liang Chen, John Barber, Anqing Zhang, Nicholas Ah Mew, Andreas Schulze, Greta Wilkening, Sandesh C S Nagamani, Andrea Gropman, Urea Cycle Disease Consortium

Faculty, Staff and Students Publications

Background: This retrospective clinical study performed at a single clinical center aimed to identify the prevalence of seizures in individuals with urea cycle disorders (UCDs) with and without hyperammonemic (HA) crises. In addition, we sought to correlate the utility of biochemical markers and electroencephalography (EEG) in detecting subclinical seizures during HA.

Methods: Medical records of individuals with UCDs enrolled in Urea Cycle Disorders Consortium Longitudinal Study (UCDC-LS) (NCT00237315) at Children's National Hospital between 2006 and 2022 were reviewed for evidence of clinical and subclinical seizuress during HA crises, and initial biochemical levels concurrently.

Results: Eighty-five individuals with UCD …

Contemporary Epidemiology Of Hepatocellular Carcinoma: Understanding Risk Factors And Surveillance Strategies, Fouad Jaber, George Cholankeril, Hashem B El-Serag

Faculty, Staff and Students Publications

The contemporary epidemiology of hepatocellular carcinoma (HCC) shows a shift in the main etiological risk factors from less common but highly virulent (eg, hepatitis C and B) to more common but weak risk factors (eg, alcohol and metabolic syndrome). Therefore, we are in a seemingly paradoxical state of declining overall incidence rates of HCC-related to improved prevention and treatment of viral hepatitis but burgeoning number of people at an elevated risk of HCC. Several geographic regions have reported an increase in HCC attributable to alcoholic liver disease and metabolic dysfunction associated with steatotic liver disease (MASLD). The importance of risk …

Inhaled Corticosteroids Attenuate The Association Of Fine Particulate Matter And Acute Asthma Events, Kristen A Staggers, Paula Sierra, Drew A Helmer, Charles Minard, Meredith C Mccormack, Tianshi David Wu

Faculty, Staff and Students Publications

No abstract provided.

Evaluating Progress And Accountability For Achieving Cop26 Health Programme International Ambitions For Sustainable, Low-Carbon, Resilient Health-Care Systems, Iris Martine Blom, Fawzia N Rasheed, Hardeep Singh, Matthew J Eckelman, Meghnath Dhimal, Martin Hensher, Renzo R Guinto, Alice Mcgushin, Xuejuan Ning, Poornima Prabhakaran, Marina Romanello, Dana Van Alphen, Nick Watts, Jessica C Yu, Carol Zavaleta-Cortijo, Andrea J Macneill, Jodi D Sherman

Faculty, Staff and Students Publications

A global initiative to develop low-carbon, resilient health systems-the COP26 Health Programme-launched at the UN Framework Convention on Climate Change 26th Conference of the Parties (COP26) in 2021. As of May, 2024, 83 nations have committed to participate in this initiative. This analysis evaluates the effectiveness of existing and proposed indicators towards public monitoring and accountability to these commitments. Our findings reveal substantial gaps in data availability and indicator relevance, with many countries reporting process indicators that do not reflect actual progress towards achieving sustainable health-care systems. We found a dearth of suitable indicators and an urgent need to develop …

Dysarthria And Weakness In A Patient With Cirrhosis, Jodie Mogensen, Kim N Du, Kimberly Hein, Lee Bach Lu

Faculty, Staff and Students Publications

No abstract provided.

Larp1 Haploinsufficiency Is Associated With An Autosomal Dominant Neurodevelopmental Disorder, James Chettle, Raymond J. Louie, Olivia Larner, Robert Best, Kevin Chen, Josephine Morris, Zinaida Dedeic, Roberta Sierra, Lori Berry, Kent Carter

School of Medicine Publications

Autism spectrum disorder (ASD) is a neurodevelopmental disorder (NDD) that affects approximately 4% of males and 1% of females in the United States. While causes of ASD are multi-factorial, single rare genetic variants contribute to around 20% of cases. Here we report a case series of seven unrelated probands (6 males, 1 female) with ASD or another variable NDD phenotype attributed to de novo heterozygous loss of function or missense variants in the gene LARP1. LARP1 encodes an RNA binding protein that post-transcriptionally regulates the stability and translation of thousands of mRNAs, including those regulating cellular metabolism and metabolic plasticity. …

Considerations For Reporting Variants In Novel Candidate Genes Identified During Clinical Genomic Testing, Jessica X Chong, Seth I Berger, Samantha Baxter, Erica Smith, Changrui Xiao, Daniel G Calame, Megan H Hawley, E Andres Rivera-Munoz, Stephanie Ditroia, Genomics Research To Elucidate The Genetics Of Rare Diseases (Gregor) Consortium, Michael J Bamshad, Heidi L Rehm

Faculty, Staff and Students Publications

Since the first novel gene discovery for a Mendelian condition was made via exome sequencing, the rapid increase in the number of genes known to underlie Mendelian conditions coupled with the adoption of exome (and more recently, genome) sequencing by diagnostic testing labs has changed the landscape of genomic testing for rare diseases. Specifically, many individuals suspected to have a Mendelian condition are now routinely offered clinical ES. This commonly results in a precise genetic diagnosis but frequently overlooks the identification of novel candidate genes. Such candidates are also less likely to be identified in the absence of large-scale gene …

A Portable Photoacoustic Microscopy And Ultrasound System For Rectal Cancer Imaging, Sitai Kou, Sanskar Thakur, Ahmed Eltahir, Haolin Nie, Yitian Zhang, Andrew Song, Steven R Hunt, Matthew G Mutch, William C Chapman Jr, Quing Zhu

2020-Current year OA Pubs

Photoacoustic microscopy offers functional information regarding tissue vasculature while ultrasound characterizes tissue structure. Combining these two modalities provides novel clinical applications including response assessment among rectal cancer patients undergoing therapy. We have previously demonstrated the capabilities of a co-registered photoacoustic and ultrasound device

The Undiagnosed Diseases Network: Characteristics Of Solvable Applicants And Diagnostic Suggestions For Nonaccepted Ones, John J Mulvihill, Laura Findley, Weihong Ni, Janet S Sinsheimer, F Session Cole, Cecilia Esteves, Jonathan A Bernstein, John H Newman, Matthew T Wheeler, Jill R Mokry, Undiagnosed Diseases Network

Faculty, Staff and Students Publications

Purpose: Can certain characteristics identify as solvable some undiagnosed patients who seek extensive evaluation and thorough record review, such as by the Undiagnosed Diseases Network (UDN)?

Methods: The UDN is a national research resource to solve medical mysteries through team science. Applicants provide informed consent to access to their medical records. After review, expert panels assess if applicants meet inclusion and exclusion criteria to select participants. When not accepting applicants, UDN experts may offer suggestions for diagnostic efforts. Using minimal information from initial applications, we compare features in applicants who are not accepted with those who are accepted and either …

Metabolic Dependencies Of Acute Myeloid Leukemia Stem Cells, Xiangguo Shi, Mengdie Feng, Daisuke Nakada

Faculty, Staff and Students Publications

Acute myeloid leukemia (AML) is a heterogeneous hematologic malignancy primarily driven by an immature population of AML cells termed leukemia stem cells (LSCs) that are implicated in AML development, chemoresistance, and relapse. An emerging area of research in AML focuses on identifying and targeting the aberrant metabolism in LSCs. Dysregulated metabolism is involved in sustaining functional properties of LSCs, impeding myeloid differentiation, and evading programmed cell death, both in the process of leukemogenesis and in response to chemotherapy. This review discusses recent discoveries regarding the aberrant metabolic processes of AML LSCs that have begun to change the therapeutic landscape of …

Characterization And Visualization Of Tandem Repeats At Genome Scale, Egor Dolzhenko, Adam English, Harriet Dashnow, Guilherme De Sena Brandine, Tom Mokveld, William J Rowell, Caitlin Karniski, Zev Kronenberg, Matt C Danzi, Warren A Cheung, Chengpeng Bi, Emily Farrow, Aaron Wenger, Khi Pin Chua, Verónica Martínez-Cerdeño, Trevor D Bartley, Peng Jin, David L Nelson, Stephan Zuchner, Tomi Pastinen, Aaron R Quinlan, Fritz J Sedlazeck, Michael A Eberle

Faculty, Staff and Students Publications

Tandem repeat (TR) variation is associated with gene expression changes and numerous rare monogenic diseases. Although long-read sequencing provides accurate full-length sequences and methylation of TRs, there is still a need for computational methods to profile TRs across the genome. Here we introduce the Tandem Repeat Genotyping Tool (TRGT) and an accompanying TR database. TRGT determines the consensus sequences and methylation levels of specified TRs from PacBio HiFi sequencing data. It also reports reads that support each repeat allele. These reads can be subsequently visualized with a companion TR visualization tool. Assessing 937,122 TRs, TRGT showed a Mendelian concordance of …

Cancer Drug-Tolerant Persister Cells: From Biological Questions To Clinical Opportunities, Mariangela Russo, Mengnuo Chen, Elisa Mariella, Haoning Peng, Sumaiyah K Rehman, Elena Sancho, Alberto Sogari, Tzen S Toh, Nathalie Q Balaban, Eduard Batlle, Rene Bernards, Mathew J Garnett, Matthew Hangauer, Eleonora Leucci, Jean-Christophe Marine, Catherine A O'Brien, Yaara Oren, E Elizabeth Patton, Caroline Robert, Susan M Rosenberg, Shensi Shen, Alberto Bardelli

Faculty, Staff and Students Publications

The emergence of drug resistance is the most substantial challenge to the effectiveness of anticancer therapies. Orthogonal approaches have revealed that a subset of cells, known as drug-tolerant 'persister' (DTP) cells, have a prominent role in drug resistance. Although long recognized in bacterial populations which have acquired resistance to antibiotics, the presence of DTPs in various cancer types has come to light only in the past two decades, yet several aspects of their biology remain enigmatic. Here, we delve into the biological characteristics of DTPs and explore potential strategies for tracking and targeting them. Recent findings suggest that DTPs exhibit …

Evaluation Of Forces Applied To Tissues During Robotic-Assisted Surgical Tasks Using A Novel Force Feedback Technology, Michael M Awad, Mathew C Raynor, Mika Padmanabhan-Kabana, Lana Y Schumacher, Jeffrey A Blatnik

2020-Current year OA Pubs

BACKGROUND: The absence of force feedback (FFB) is considered a technical limitation in robotic-assisted surgery (RAS). This pre-clinical study aims to evaluate the forces applied to tissues using a novel integrated FFB technology, which allows surgeons to sense forces exerted at the instrument tips.

METHODS: Twenty-eight surgeons with varying experience levels employed FFB instruments to perform three robotic-assisted surgical tasks, including retraction, dissection, and suturing, on inanimate or ex-vivo models, while the instrument sensors recorded and conveyed the applied forces to the surgeon hand controllers of the robotic system. Generalized Estimating Equations (GEE) models were used to analyze the mean …

Evolution Of White Matter Hyperintensity Segmentation Methods And Implementation Over The Past Two Decades; An Incomplete Shift Towards Deep Learning, Maryam Rahmani, Donna Dierker, Lauren Yaeger, Patrick H Luckett, Andrei G Vlassenko, Christopher Owens, Hussain Jafri, Kyle Womack, Tammie L S Benzinger, Jin-Moo Lee, John C Morris, Manu S Goyal, Jeremy F Strain, Et Al.

2020-Current year OA Pubs

This systematic review examines the prevalence, underlying mechanisms, cohort characteristics, evaluation criteria, and cohort types in white matter hyperintensity (WMH) pipeline and implementation literature spanning the last two decades. Following Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, we categorized WMH segmentation tools based on their methodologies from January 1, 2000, to November 18, 2022. Inclusion criteria involved articles using openly available techniques with detailed descriptions, focusing on WMH as a primary outcome. Our analysis identified 1007 visual rating scales, 118 pipeline development articles, and 509 implementation articles. These studies predominantly explored aging, dementia, psychiatric disorders, and small …

On The Power Of Constructive Criticism, Anna Devor, Androu Abdalmalak, Taner Akkin, Yeka Aponte, George J. Augustine, Sabrina Brigadoi, Erin M. Buckley, Robert E. Campbell, Stefan A. Carp, Jean-Yves Chatton, Jerry L. Chen, Ji-Xin Cheng, Tomáš Cižmár, Robert J. Cooper, Ippeita Dan, Patrick J. Drew, Turgut Durduran, Valentina Emiliani, Tommaso Fellin, Amanda J. Foust, Ling Fu, Amir Gandjbakhche, Judit Gervain, Ariel Gilad, Edgar Guevara Codina, Xue Han, Elizabeth M. Hillman, Ute Hochgeschwender, Song Hu, Na Ji, Prakash Kara, Beop-Min Kim, Tiffany S. Ko, Duygu Kuzum, Jérôme Lecoq, Rickson C. Mesquita, Timothy H. Murphy, U. Valentin Nägerl, Nozomi Nishimura, Yumie Ono, Nisan Ozana, Francesco S. Pavone, Darcy S. Peterka, Ferruccio Pisanello, Anna Wang Roe, Andy Y. Shih, Shy Shoham, François St-Pierre, Sungho Tak, Lin Tian, Kai Wang, Martin Wolf, Ji Yi, Ofer Yizhar, Meryem A. Yucel

Faculty, Staff and Students Publications

The editorial discusses the practice of peer review for SPIE Neurophotonics.

Feature Extraction For Generative Medical Imaging Evaluation: New Evidence Against An Evolving Trend, Mckell Woodland, Austin Castelo, Mais Al Taie, Jessica Albuquerque Marques Silva, Mohamed Eltaher, Frank Mohn, Alexander Shieh, Suprateek Kundu, Joshua P Yung, Ankit B Patel, Kristy K Brock

Faculty, Staff and Students Publications

Fréchet Inception Distance (FID) is a widely used metric for assessing synthetic image quality. It relies on an ImageNet-based feature extractor, making its applicability to medical imaging unclear. A recent trend is to adapt FID to medical imaging through feature extractors trained on medical images. Our study challenges this practice by demonstrating that ImageNet-based extractors are more consistent and aligned with human judgment than their RadImageNet counterparts. We evaluated sixteen StyleGAN2 networks across four medical imaging modalities and four data augmentation techniques with Fréchet distances (FDs) computed using eleven ImageNet or RadImageNet-trained feature extractors. Comparison with human judgment via visual …

Extraordinary Variance In Meta-Analysis Of Venom Toxicity Of 160 Most Lethal Ophidians And Guidelines For Estimating Human Lethal Dose Range, Brian P. Hanley, Gustavo Gross

School of Medicine Publications

Background: This is the first meta-analysis to characterize intra-ophidian-species variation in whole venom. Being the largest possible meta-analysis at this time, it encompasses all known records of animal lethality studies over the past 100 years. These results were not artifacts of resistant test-animal species and showed orders of magnitude beyond the 1.6 logs (40-fold change) range of lethal dose documented in the literature between amphibians, lizards, and mice.

Methods: A total of 1003 lethal dose study results for 160 of the most lethal venomous ophidian species in the world were analyzed.

Results: LDLo was not different from LD50 across studies, …

Influenza C Virus In Us Children With Acute Respiratory Infection 2016–2019, Bethany K Sederdahl, Geoffrey A Weinberg, Angela P Campbell, Rangaraj Selvarangan, Jennifer E Schuster, Joana Y Lively, Samantha M Olson, Julie A Boom, Pedro A Piedra, Natasha B Halasa, Laura Stewart, Peter G Szilagyi, G K Balasubramani, Theresa Sax, Judith M Martin, Robert W Hickey, Marian G Michaels, John V Williams, New Vaccine Surveillance Network

Faculty, Staff and Students Publications

Influenza C virus (ICV) is an orthomyxovirus related to influenza A and B, yet due to few commercial assays, epidemiologic studies may underestimate incidence of ICV infection and disease. We describe the epidemiology and characteristics of ICV within the New Vaccine Surveillance Network (NVSN), a Centers for Disease Control and Prevention (CDC)-led network that conducts population-based surveillance for pediatric acute respiratory illness (ARI). Nasal or/combined throat swabs were collected from emergency department (ED) or inpatient ARI cases, or healthy controls, between 12/05/2016-10/31/2019 and tested by molecular assays for ICV and other respiratory viruses. Parent surveys and chart review were used …

Rotavirus Vaccine Effectiveness Against Severe Acute Gastroenteritis: 2009-2022, Alpha Oumar Diallo, Mary E Wikswo, Iddrisu Sulemana, Leila C Sahni, Julie A Boom, Sasirekha Ramani, Rangaraj Selvarangan, Mary E Moffatt, Christopher J Harrison, Natasha Halasa, James Chappell, Laura Stewart, Mary Allen Staat, Elizabeth Schlaudecker, Christina Quigley, Eileen J Klein, Janet A Englund, Danielle M Zerr, Geoffrey A Weinberg, Peter G Szilagyi, Christina Albertin, Samantha H Johnston, John V Williams, Marian G Michaels, Robert W Hickey, Aaron T Curns, Michelle Honeywood, Slavica Mijatovic-Rustempasic, Mathew D Esona, Michael D Bowen, Umesh D Parashar, Rashi Gautam, Sara A Mirza, Jacqueline E Tate

Faculty, Staff and Students Publications

Background: Rotavirus was the leading cause of acute gastroenteritis among US children until vaccine introduction in 2006, after which, substantial declines in severe rotavirus disease occurred. We evaluated rotavirus vaccine effectiveness (VE) over 13 years (2009-2022).

Methods: We analyzed data from the New Vaccine Surveillance Network using a test-negative case-control design to estimate rotavirus VE against laboratory-confirmed rotavirus infections among children seeking care for acute gastroenteritis (≥3 diarrhea or ≥1 vomiting episodes within 24 hours) in the emergency department (ED) or hospital. Case-patients and control-patients were children whose stool specimens tested rotavirus positive or negative, respectively, by enzyme immunoassay or …

Perineuronal Nets’ Role In Metabolism, Nan Zhang, Beite Song, Peng Bai, Li Du, Lulu Chen, Yong Xu, Tianshu Zeng

Faculty, Staff and Students Publications

Perineuronal nets (PNNs), specialized extracellular matrix (ECM) structures that envelop neurons, have recently been recognized as key players in the regulation of metabolism. This review explores the growing body of knowledge concerning PNNs and their role in metabolic control, drawing insights from recent research and relevant studies. The pivotal role of PNNs in the context of energy balance and whole body blood glucose is examined. This review also highlights novel findings, including the effects of astroglia, microglia, sex and gonadal hormones, nutritional regulation, circadian rhythms, and age on PNNs dynamics. These findings illuminate the complex and multifaceted role of PNNs …

Correspondence Re Essam El-Sayed Felaya Et Al, Kiyeun Nam, Dongho Lee, Seokjoon Hwang, Minsu Seo, Taeheon Lee, Yonghoon Lee, Michael Y Lee

Faculty, Staff and Students Publications

No abstract provided.

Intimate Partner Violence-Related Brain Injury: Unmasking And Addressing The Gaps, Carrie Esopenko, Divya Jain, Shambhu Prasad Adhikari, Kristen Dams-O'Connor, Michael Ellis, Halina Lin Haag, Elizabeth S Hovenden, Finian Keleher, Inga K Koerte, Hannah M Lindsey, Amy D Marshall, Karen Mason, J Scott Mcnally, Deleene S Menefee, Tricia L Merkley, Emma N Read, Philine Rojcyk, Sandy R Shultz, Mujun Sun, Danielle Toccalino, Eve M Valera, Paul Van Donkelaar, Cheryl Wellington, Elisabeth A Wilde

Faculty, Staff and Students Publications

Intimate partner violence (IPV) is a significant, global public health concern. Women, individuals with historically underrepresented identities, and disabilities are at high risk for IPV and tend to experience severe injuries. There has been growing concern about the risk of exposure to IPV-related head trauma, resulting in IPV-related brain injury (IPV-BI), and its health consequences. Past work suggests that a significant proportion of women exposed to IPV experience IPV-BI, likely representing a distinct phenotype compared with BI of other etiologies. An IPV-BI often co-occurs with psychological trauma and mental health complaints, leading to unique issues related to identifying, prognosticating, and …

Cumulative Radiation Exposure And Lifetime Cancer Risk In Patients With Tetralogy Of Fallot Requiring Early Intervention, Jeannette R Wong-Siegel, Andrew C Glatz, Courtney Mccracken, Choonsik Lee, Cari M Kitahara, Lene H S Veiga, Yun Zhang, Bryan H Goldstein, Christopher J Petit, Athar M Qureshi, George T Nicholson, Mark A Law, Jeffery Meadows, Shabana Shahanavaz, Michael L O'Byrne, Sarosh P Batlivala, Joelle Pettus, Asaad Beshish, Christopher E Mascio, Jennifer C Romano, Kathyrn O Stack, Ivor Asztalos, Tacy E Downing, Jeffrey D Zampi

Faculty, Staff and Students Publications

Background: Neonates with tetralogy of Fallot and symptomatic cyanosis (sTOF) require early intervention, utilizing either a staged repair (SR) or primary repair (PR) approach. They are exposed to several sources of low-dose ionizing radiation, which may contribute to increased cancer risk.

Objectives: The purpose of this study was to compare cumulative radiation exposure and associated lifetime attributable risk (LAR) of cancer between treatment strategies in sTOF.

Methods: Neonates with sTOF who underwent SR or PR from 2012 to 2017 were retrospectively reviewed from the Congenital Cardiac Research Collaborative. Radiation exposure from all radiologic studies prior to 18 months of age …

Reimagining Supportive Approaches At The Intersection Of Mandatory Reporting Policies For The Mother–Infant Dyad Affected By Substance Use, Kelly Mcglothen-Bell, Diana Cartagena, Kathryn J. Malin, Dorothy Vittner, Jacqueline M. Mcgrath, Rebecca Koerner, Ashlee J. Vance, Allison Crawford

College of Nursing Faculty Research and Publications

Background: As rates of substance use during pregnancy persist, the health and optimal development of infants with prenatal substance exposure remain a key priority. Nurses are tasked with identifying and reporting suspected cases of child maltreatment, including abuse and neglect, which is often assumed to be synonymous with substance use during pregnancy. While policies aimed at protecting infants from child abuse and neglect are well intentioned, literature regarding the short- and long-term social and legal implications of mandatory reporting policies is emerging.

Purpose: In this article, we explore the intersections between the condition of substance use in pregnancy and policies …

Using Screen-Based Simulation In Family Nurse Practitioner Education, Angela M. Mcnelis, Kristina Thomas Dreifuerst, Sarah L. Beebe, Majeda El-Banna, Mary S. Dietrich

College of Nursing Faculty Research and Publications

Background

Innovations in nursing education are crucial for developing new learning approaches to ensure quality preparation and an adequate number of nurse practitioners (NPs). This necessity prompts exploration and implementation of alternative clinical educational approaches, such as screen-based simulation (SBS), to address challenges posed by limited clinical sites and preceptors.

Purpose

The study aim was to compare the effectiveness of SBS with that of traditional precepted clinical experiences in students’ attainment of mastery of knowledge in the domains of assessment, diagnosis, treatment, and evaluation across the pediatric, adolescent, adult, and geriatric populations.

Methods

A quasi-experimental, pretest/posttest design was employed. Family …

Multifocal Retinocytoma Associated With Intronic Acceptor Splice Site Variants In The Rb1 Gene, Jennifer Li-Wang, Patricia Chévez-Barrios, Jessica S Thomas, Amy C Schefler

Faculty, Staff and Students Publications

Retinocytomas are benign tumors that arise from mutations in the RB1 gene. Previous research describes the appearance of retinocytomas as that of treated retinoblastoma (Rb) lesions, with characteristics such as chorioretinal atrophy, calcification, and a lack of necrosis or mitotic activity on histopathology. We present the unusual case of an asymptomatic seven-year-old girl with two independent translucent masses in the peripheral retina of the right eye (OD) and extensive intraretinal tumor and vitreous seeds. Initial fundus examination and B-scan ultrasonography documented the two lesions with extensive placoid intraretinal tumor, uncalcified vitreous seeds, and an area of large subhyaloid seed on …

Deletion Of Tissue Factor Pathway Inhibitor Isoform Beta Or Gamma, But Not Alpha, Improves Clotting In Hemophilic Mice, Irem Eldem, Lilian Antunes-Heck, Renumathi Subramanian, Nina M Lasky, Katrina Ashworth, Jorge Di Paola, Thomas J Girard

2020-Current year OA Pubs

BACKGROUND: Tissue factor pathway inhibitor (TFPI) regulates tissue factor-triggered coagulation. Humans and mice express transcripts encoding for multidistributed (endothelial, platelet, and plasma) 3-Kunitz domain TFPIα and endothelial membrane-anchored 2-Kunitz TFPIβ. Mice express a third transcript, γ, that encodes plasma lipoprotein-associated 2-Kunitz TFPI. In humans, proteolysis of α and/or β produces plasma lipoprotein-associated 2-Kunitz TFPI at lower levels. In clinical trials, monoclonal antibodies that target all TFPI isoforms extend coagulation and correct bleeding in hemophilic patients but with some thrombosis risks.

OBJECTIVES: To determine the impact of TFPI isoform-specific deletions on promoting clotting in hemophilic mice.

METHODS: Engineered TFPI isoform-specific, hemophilic …

Addressing Platelet Insecurity – A National Call To Action, Eric A Gehrie, Pampee P Young, Sridhar V Basavaraju, Arthur W Bracey, Andrew P Cap, Liz Culler, Nancy M Dunbar, Mary Homer, Iris Isufi, Rob Macedo, Tanya Petraszko, Glenn Ramsey, Christopher A Tormey, Richard M Kaufman, Edward L Snyder

Faculty, Staff and Students Publications

No abstract provided.