Digital Commons Network^™

A Comparison Of Machine Learning Classifiers For Pediatric Epilepsy Using Resting-State Functional Mri Latency Data, Ryan D Nguyen, Matthew D Smyth, Liang Zhu, Ludovic P Pao, Shannon K Swisher, Emmett H Kennady, Anish Mitra, Rajan P Patel, Jeremy E Lankford, Gretchen Von Allmen, Michael W Watkins, Michael E Funke, Manish N Shah

Faculty, Staff and Student Publications

Epilepsy affects 1 in 150 children under the age of 10 and is the most common chronic pediatric neurological condition; poor seizure control can irreversibly disrupt normal brain development. The present study compared the ability of different machine learning algorithms trained with resting-state functional MRI (rfMRI) latency data to detect epilepsy. Preoperative rfMRI and anatomical MRI scans were obtained for 63 patients with epilepsy and 259 healthy controls. The normal distribution of latency z-scores from the epilepsy and healthy control cohorts were analyzed for overlap in 36 seed regions. In these seed regions, overlap between the study cohorts ranged from …

Comparison Of Transcriptional Profiles Of Treponema Pallidum During Experimental Infection Of Rabbits And In Vitro Culture: Highly Similar, Yet Different, Bridget D De Lay, Todd A Cameron, Nicholas R De Lay, Steven J Norris, Diane G Edmondson

Faculty, Staff and Student Publications

Treponema pallidum ssp. pallidum, the causative agent of syphilis, can now be cultured continuously in vitro utilizing a tissue culture system, and the multiplication rates are similar to those obtained in experimental infection of rabbits. In this study, the RNA transcript profiles of the T. pallidum Nichols during in vitro culture and rabbit infection were compared to examine whether gene expression patterns differed in these two environments. To this end, RNA preparations were converted to cDNA and subjected to RNA-seq using high throughput Illumina sequencing; reverse transcriptase quantitative PCR was also performed on selected genes for validation of results. The …

Diabetes Detection And Prevention In Dermatology, Alexandra Ngo, Luise Froessl, John Wesley Mcwhorter, William Brett Perkison, Rajani Katta

Faculty, Staff and Student Publications

We are currently in the midst of an international epidemic of diabetes mellitus (DM) and prediabetes. The prevalence of DM in the United States is estimated at 9.4% of the population across all ages, while an estimated 1 in 3 Americans (33.9%) has prediabetes. According to the WHO, about 60 million people suffer from diabetes in the European Region. Dermatologists may play an important role in tackling this epidemic via efforts to improve early detection of both diabetes and prediabetes. Dermatologists often treat patients with, or at risk of, diabetes. This includes patients who present with cutaneous manifestations such as …

Exome Sequence Association Study Of Levels And Longitudinal Change Of Cardiovascular Risk Factor Phenotypes In European Americans And African Americans From The Atherosclerosis Risk In Communities Study, Elena V Feofanova, Elise Lim, Han Chen, Minjae Lee, Ching-Ti Liu, L Adrienne Cupples, Eric Boerwinkle

Faculty, Staff and Student Publications

Cardiovascular disease (CVD) is responsible for 31% of all deaths worldwide. Among CVD risk factors are age, race, increased systolic blood pressure (BP), and dyslipidemia. Both BP and blood lipids levels change with age, with a dose-dependent relationship between the cumulative exposure to hyperlipidemia and the risk of CVD. We performed an exome sequence association study using longitudinal data with up to 7805 European Americans (EAs) and 3171 African Americans (AAs) from the Atherosclerosis Risk in Communities (ARIC) study. We assessed associations of common (minor allele frequency > 5%) nonsynonymous and splice-site variants and gene-based sets of rare variants with levels …

Extracorporeal Membrane Oxygenation Rescue For Severe Aspiration Pneumonitis In Two Patients After Roux-En-Y Gastric Bypass Procedure, Melissa M Felinski, Daniyal Abbas, Peter A Walker, John A Primomo, Tanyaradzwa M Kajese, Biswajit Kar, Igor D Gregoric, Igor Banjac, Lisa Janowiak, Sriram Nathan, Rahat Hussain, Sheilendra S Mehta, Kulvinder S Bajwa, Shinil K Shah, Bindu Akkanti

Faculty, Staff and Student Publications

Roux-en-y gastric bypass (RYGB) is one of the most common weight loss surgical procedures performed in the United States. Early post-operative small bowel obstruction is a rare but potentially morbid, complication of RYGB. We report two patients who underwent RYGB and required subsequent treatment for a post-operative small bowel obstruction. Their post-operative course was complicated by severe aspiration pneumonitis leading to hypoxemic respiratory failure requiring rescue with femoral veno-venous extracorporeal membrane oxygenation (V-V ECMO). Both patients were successfully extubated, weaned off V-V ECMO support, and discharged to home. These cases highlight the potential role of V-V ECMO for patients who …

Management And Outcomes For Long-Segment Hirschsprung Disease: A Systematic Review From The Apsa Outcomes And Evidence Based Practice Committee, Akemi L Kawaguchi, Yigit S Guner, Stig Sømme, Alexandria C Quesenberry, L Grier Arthur, Juan E Sola, Cynthia D Downard, Rebecca M Rentea, Patricia A Valusek, Caitlin A Smith, Mark B Slidell, Robert L Ricca, Roshni Dasgupta, Elizabeth Renaud, Doug Miniati, Jarod Mcateer, Alana L Beres, Julia Grabowski, Shawn D St Peter, Ankush Gosain, American Pediatric Surgical Association Outcomes And Evidence-Based Practice (Oebp) Committee

Faculty, Staff and Student Publications

OBJECTIVE: Long-Segment Hirschsprung Disease (LSHD) differs clinically from short-segment disease. This review article critically appraises current literature on the definition, management, outcomes, and novel therapies for patients with LSHD.

METHODS: Four questions regarding the definition, management, and outcomes of patients with LSHD were generated. English-language articles published between 1990 and 2018 were compiled by searching PubMed, Scopus, Cochrane Central Register of Controlled Trials, Web of Science, and Google Scholar. A qualitative synthesis was performed.

RESULTS: 66 manuscripts were included in this systematic review. Standardized nomenclature and preoperative evaluation for LSHD are recommended. Insufficient evidence exists to recommend a single method …

Secondary Bacterial Pneumonias And Bloodstream Infections In Patients Hospitalized With Covid-19, Max W Adelman, Divya R Bhamidipati, Alfonso C Hernandez-Romieu, Ahmed Babiker, Michael H Woodworth, Chad Robichaux, David J Murphy, Sara C Auld, Colleen S Kraft, Jesse T Jacob

Faculty, Staff and Student Publications

No abstract provided.

Delirium In Frail Older Adults, Min Ji Kwak

Faculty, Staff and Student Publications

Delirium and frailty are prevalent geriatric syndromes and important public health issues among older adults. The prevalence of delirium among hospitalized older adults ranges from 15% to 75%, while that of frailty ranges from 12% to 24%. The exact pathophysiology of these two conditions has not been clearly identified, although several hypotheses have been proposed. However, these conditions are considered to be multifactorial in etiology and are associated with inflammation related to aging, alterations in vascular systems, genetics, and nutritional deficiency. Furthermore, clinically, they are significantly associated with frailty, which increases the risk of delirium by almost two- to three-fold …

Results Of Covid-19 Surveillance In A Large United States Pediatric Healthcare System Over One Year, Sarah E Messiah, Luyu Xie, Matthew S Mathew, George L Delclos, Harold W Kohl, Jeffrey S Kahn

Faculty, Staff and Student Publications

BACKGROUND: The lack of SARS-CoV-2 antigen surveillance testing in the pediatric population has inhibited accurate infection and hospitalization prevalence estimates. We aim to report the estimated prevalence of and risk factors for COVID-19 infection, hospitalization, and intensive care unit (ICU) admission across the three United States (US) waves in one of the largest pediatric healthcare systems in the nation.

METHODS: Retrospective electronic health record (EHR) review of all COVID-19 surveillance data among children aged 0-19 years seeking healthcare at one pediatric healthcare system that serves predominantly Medicaid-dependent families from 1 March 2020 to 31 March 2021. COVID-19 infection status (Y/N), …

Whole-Genome Association Analyses Of Sleep-Disordered Breathing Phenotypes In The Nhlbi Topmed Program, Brian E Cade, Jiwon Lee, Tamar Sofer, Heming Wang, Man Zhang, Han Chen, Sina A Gharib, Daniel J Gottlieb, Xiuqing Guo, Jacqueline M Lane, Jingjing Liang, Xihong Lin, Hao Mei, Sanjay R Patel, Shaun M Purcell, Richa Saxena, Neomi A Shah, Daniel S Evans, Craig L Hanis, David R Hillman, Sutapa Mukherjee, Lyle J Palmer, Katie L Stone, Gregory J Tranah, Gonçalo R Abecasis, Eric A Boerwinkle, Adolfo Correa, L Adrienne Cupples, Robert C Kaplan, Deborah A Nickerson, Kari E North, Bruce M Psaty, Jerome I Rotter, Stephen S Rich, Russell P Tracy, Ramachandran S Vasan, James G Wilson, Xiaofeng Zhu, Susan Redline

Faculty, Staff and Student Publications

BACKGROUND: Sleep-disordered breathing is a common disorder associated with significant morbidity. The genetic architecture of sleep-disordered breathing remains poorly understood. Through the NHLBI Trans-Omics for Precision Medicine (TOPMed) program, we performed the first whole-genome sequence analysis of sleep-disordered breathing.

METHODS: The study sample was comprised of 7988 individuals of diverse ancestry. Common-variant and pathway analyses included an additional 13,257 individuals. We examined five complementary traits describing different aspects of sleep-disordered breathing: the apnea-hypopnea index, average oxyhemoglobin desaturation per event, average and minimum oxyhemoglobin saturation across the sleep episode, and the percentage of sleep with oxyhemoglobin saturation < 90%. We adjusted for age, sex, BMI, study, and family structure using MMSKAT and EMMAX mixed linear model approaches. Additional bioinformatics analyses were performed with MetaXcan, GIGSEA, and ReMap.

RESULTS: We identified a …

Concentrations Of Lead, Mercury, Arsenic, Cadmium, Manganese, And Aluminum In The Blood Of Pakistani Children With And Without Autism Spectrum Disorder And Their Associated Factors, Mohammad H Rahbar, Shahnaz H Ibrahim, Syed Iqbal Azam, Manouchehr Hessabi, Fatima Karim, Sori Kim, Jing Zhang, Nasreen Gulzar Ali, Katherine A Loveland

Faculty, Staff and Student Publications

BACKGROUND: Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder with early onset in utero or childhood. Environmental exposure to six metals (Pb, Hg, As, Cd, Mn, Al) is believed to be associated with ASD directly or interactively with genes.

METHODS: We enrolled 30 ASD cases, age 2-12 years old, and 30 age- and sex-matched typically developing (TD) controls in Karachi, Pakistan. We assessed associations of ASD status with various factors using Conditional Logistic Regression models. We also used General Linear Models to assess possible interaction of blood Mn and Pb concentrations with the three GST genes in relation to ASD …

An Optimized O9-1/Hydrogel System For Studying Mechanical Signals In Neural Crest Cells, Tram P Le, Xiaolei Zhao, Shannon Erhardt, Jianhua Gu, Huie Wang, Tina O Findley, Jun Wang

Faculty, Staff and Student Publications

Neural crest cells (NCCs) are vertebrate embryonic multipotent cells that can migrate and differentiate into a wide array of cell types that give rise to various organs and tissues. Tissue stiffness produces mechanical force, a physical cue that plays a critical role in NCC differentiation; however, the mechanism remains unclear. The method described here provides detailed information for the optimized generation of polyacrylamide hydrogels of varying stiffness, the accurate measurement of such stiffness, and the evaluation of the impact of mechanical signals in O9-1 cells, a NCC line that mimics in vivo NCCs.

Hydrogel stiffness was measured using atomic force …

Cabotegravir For Hiv Prevention In Cisgender Men And Transgender Women, Raphael J Landovitz, Deborah Donnell, Meredith E Clement, Brett Hanscom, Leslie Cottle, Lara Coelho, Robinson Cabello, Suwat Chariyalertsak, Eileen F Dunne, Ian Frank, Jorge A Gallardo-Cartagena, Aditya H Gaur, Pedro Gonzales, Ha V Tran, Juan C Hinojosa, Esper G Kallas, Colleen F Kelley, Marcelo H Losso, J Valdez Madruga, Keren Middelkoop, Nittaya Phanuphak, Breno Santos, Omar Sued, Javier Valencia Huamaní, Edgar T Overton, Shobha Swaminathan, Carlos Del Rio, Roy M Gulick, Paul Richardson, Philip Sullivan, Estelle Piwowar-Manning, Mark Marzinke, Craig Hendrix, Maoji Li, Zhe Wang, Jeanne Marrazzo, Eric Daar, Aida Asmelash, Todd T Brown, Peter Anderson, Susan H Eshleman, Marcus Bryan, Cheryl Blanchette, Jonathan Lucas, Christina Psaros, Steven Safren, Jeremy Sugarman, Hyman Scott, Joseph J Eron, Sheldon D Fields, Nirupama D Sista, Kailazarid Gomez-Feliciano, Andrea Jennings, Ryan M Kofron, Timothy H Holtz, Katherine Shin, James F Rooney, Kimberly Y Smith, William Spreen, David Margolis, Alex Rinehart, Adeola Adeyeye, Myron S Cohen, Marybeth Mccauley, Beatriz Grinsztejn

Faculty, Staff and Student Publications

BACKGROUND: Safe and effective long-acting injectable agents for preexposure prophylaxis (PrEP) for human immunodeficiency virus (HIV) infection are needed to increase the options for preventing HIV infection.

METHODS: We conducted a randomized, double-blind, double-dummy, noninferiority trial to compare long-acting injectable cabotegravir (CAB-LA, an integrase strand-transfer inhibitor [INSTI]) at a dose of 600 mg, given intramuscularly every 8 weeks, with daily oral tenofovir disoproxil fumarate-emtricitabine (TDF-FTC) for the prevention of HIV infection in at-risk cisgender men who have sex with men (MSM) and in at-risk transgender women who have sex with men. Participants were randomly assigned (1:1) to receive one of …

Leveraging Strategic Foresight To Advance Worker Safety, Health, And Well-Being, Jessica M K Streit, Sarah A Felknor, Nicole T Edwards, John Howard

Faculty, Staff and Student Publications

Attending to the ever-expanding list of factors impacting work, the workplace, and the workforce will require innovative methods and approaches for occupational safety and health (OSH) research and practice. This paper explores strategic foresight as a tool that can enhance OSH capacity to anticipate, and even shape, the future as it pertains to work. Equal parts science and art, strategic foresight includes the development and analysis of plausible alternative futures as inputs to strategic plans and actions. Here, we review several published foresight approaches and examples of work-related futures scenarios. We also present a working foresight framework tailored for OSH …

Census Tract Patterns And Contextual Social Determinants Of Health Associated With Covid-19 In A Hispanic Population From South Texas: A Spatiotemporal Perspective, Cici Bauer, Kehe Zhang, Miryoung Lee, Susan Fisher-Hoch, Esmeralda Guajardo, Joseph Mccormick, Isela De La Cerda, Maria E Fernandez, Belinda Reininger

Faculty, Staff and Student Publications

BACKGROUND: Previous studies have shown that various social determinants of health (SDOH) may have contributed to the disparities in COVID-19 incidence and mortality among minorities and underserved populations at the county or zip code level.

OBJECTIVE: This analysis was carried out at a granular spatial resolution of census tracts to explore the spatial patterns and contextual SDOH associated with COVID-19 incidence from a Hispanic population mostly consisting of a Mexican American population living in Cameron County, Texas on the border of the United States and Mexico. We performed age-stratified analysis to identify different contributing SDOH and quantify their effects by …

The Immunoregulatory Landscape Of Human Tuberculosis Granulomas, Evan Li, Antony Rodriguez, Amber U Luong, David Allen, John Morgan Knight, Farrah Kheradmand, David B Corry

Faculty, Staff and Student Publications

The allergic airway diseases chronic rhinosinusitis (CRS), allergic fungal rhinosinusitis (AFRS), asthma, allergic bronchopulmonary mycosis/aspergillosis (ABPM/A), and cystic fibrosis (CF) share a common immunological signature marked by T H 2 and TH 17 cell predominant immune responses, the production of IgE antibody, and atypical inflammatory cell infiltrate that includes eosinophils and other innate immune effector cells. Severe forms of these disorders have long been recognized as being related to hypersensitivity reactions to environmental fungi. Increasingly however,environmental fungi are assuming a more primary role in the etiology of these disorders, with airway mycosis, a type of non-invasive airway fungal infection,recognized as …

The Association Between Outdoor Artificial Light At Night And Breast Cancer Risk In Black And White Women In The Southern Community Cohort Study, Qian Xiao, Gretchen L Gierach, Cici Bauer, William J Blot, Peter James, Rena R Jones

Faculty, Staff and Student Publications

No abstract provided.

Musculoskeletal Injuries In Us Air Force Security Forces, January 2009 To December 2018, Julia N Sundstrom, Bryant J Webber, George L Delclos, John R Herbold, David Gimeno Ruiz De Porras

Faculty, Staff and Student Publications

OBJECTIVE: to determine the incidence, types, and risk factors of musculoskeletal injuries in a military security forces population.

METHODS: Demographic and diagnostic data were retrieved on enlisted US Air Force security forces personnel who served on active duty between January 2009 and December 2018. Incidence rates and ratios were calculated using Poisson regression.

RESULTS: During 251,787 person-years of exposure, 62,489 personnel served on active duty. Of these, 40,771 (65.2%) were diagnosed with at least one musculoskeletal injury. The majority (60.1%) of the 164,078 unique musculoskeletal injuries were inflammation and pain secondary to overuse. After adjusting for other factors, women had …

Hypertrophic Cardiomyopathy Associated E22k Mutation In Myosin Regulatory Light Chain Decreases Calcium-Activated Tension And Stiffness And Reduces Myofilament Ca2+ Sensitivity, Jiajia Zhang, Li Wang, Katarzyna Kazmierczak, Hang Yun, Danuta Szczesna-Cordary, Masataka Kawai

Faculty, Staff and Student Publications

We investigated the mechanisms associated with E22K mutation in myosin regulatory light chain (RLC), found to cause hypertrophic cardiomyopathy (HCM) in humans and mice. Specifically, we characterized the mechanical profiles of papillary muscle fibers from transgenic mice expressing human ventricular RLC wild-type (Tg-WT) or E22K mutation (Tg-E22K). Because the two mouse models expressed different amounts of transgene, the B6SJL mouse line (NTg) was used as an additional control. Mechanical experiments were carried out on Ca

SUB-DISCIPLINE: Bioenergetics.

DATABASE: The data that support the findings of this study are available from the corresponding authors upon reasonable request.

ANIMAL PROTOCOL: BK20150353 (Soochow …

Genome-Wide Association Study Of Serum Metabolites In The African American Study Of Kidney Disease And Hypertension, Shengyuan Luo, Elena V Feofanova, Adrienne Tin, Sarah Tung, Eugene P Rhee, Josef Coresh, Dan E Arking, Aditya Surapaneni, Pascal Schlosser, Yong Li, Anna Köttgen, Bing Yu, Morgan E Grams

Faculty, Staff and Student Publications

The genome-wide association study (GWAS) is a powerful means to study genetic determinants of disease traits and generate insights into disease pathophysiology. to date, few GWAS of circulating metabolite levels have been performed in African Americans with chronic kidney disease. Hypothesizing that novel genetic-metabolite associations may be identified in a unique population of African Americans with a lower glomerular filtration rate (GFR), we conducted a GWAS of 652 serum metabolites in 619 participants (mean measured glomerular filtration rate 45 mL/min/1.73m

The Design And Rationale Of A Multicenter Real-World Trial: The Southeastern Collaboration To Improve Blood Pressure Control In The Us Black Belt – Addressing The Triple Threat, Tina O Findley, Hope Northrup

Faculty, Staff and Student Publications

The incidence of congenital heart defect (CHD) has increased over the past fifty years, partly attributed to routine fetal anatomical examination by sonography during obstetric care and improvements in ultrasound technology and technique. Fetal findings on ultrasound in addition to maternal biomarkers are the backbone of first- and second-trimester screening for common genetic conditions, namely aneuploidy. Since the introduction of non-invasive prenatal testing (NIPT) using next-generation sequencing to sequence cell-free fetal DNA, the detection rate of common trisomies as well as sex chromosomal aneuploidies have markedly increased. As the use of NIPT continues to broaden, the best means of incorporating …

Double-Blind Randomized Proof-Of-Concept Trial Of Canakinumab In Patients With Covid-19 Associated Cardiac Injury And Heightened Inflammation, Paul C Cremer, Calvin C Sheng, Debasis Sahoo, Siddharth Dugar, Robier Aguillon Prada, Tom Kai Ming Wang, Ossama K Abou Hassan, Jamie Hernandez-Montfort, David A Wolinsky, Daniel A Culver, Prabalini Rajendram, Abhijit Duggal, Danielle M Brennan, Katherine E Wolski, A Michael Lincoff, Steven E Nissen, Venu Menon

Faculty, Staff and Student Publications

AIMS: In coronavirus disease 2019 (COVID-19), myocardial injury is associated with systemic inflammation and higher mortality. Our aim was to perform a proof of concept trial with canakinumab, a monoclonal antibody to interleukin-1β, in patients with COVID-19, myocardial injury, and heightened inflammation.

METHODS AND RESULTS: This trial required hospitalization due to COVID-19, elevated troponin, and a C-reactive protein concentration more than 50 mg/L. The primary endpoint was time to clinical improvement at Day 14, defined as either an improvement of two points on a seven-category ordinal scale or discharge from the hospital. The secondary endpoint was mortality at Day 28. …

Associations Between Physiological Biomarkers And Psychosocial Measures Of Pregnancy-Specific Anxiety And Depression With Support Intervention, Karen L Weis, Tony T Yuan, Katherine C Walker, Thomas F Gibbons, Wenyaw Chan

Faculty, Staff and Student Publications

Stress and anxiety significantly impact the hypothalamic-pituitary axis, and in pregnancy, the subsequent maternal-fetal response can lead to poor outcomes. The objective of this study was to assess the association between psychosocial measures of pregnancy-specific anxiety and physiologic inflammatory responses. Specifically, to determine the effectiveness of the Mentors Offering Maternal Support (M-O-M-S

Oral Factors That Impact The Oral Microbiota In Parkinson's Disease, Natalia S Rozas, Gena D Tribble, Cameron B Jeter

Faculty, Staff and Student Publications

Patients with Parkinson's disease (PD) are at increased risk of aspiration pneumonia, their primary cause of death. Their oral microbiota differs from healthy controls, exacerbating this risk. Our goal was to explore if poor oral health, poor oral hygiene, and dysphagia status affect the oral microbiota composition of these patients. In this cross-sectional case-control study, the oral microbiota from hard and soft tissues of patients with PD (n = 30) and age-, gender-, and education-matched healthy controls (n = 30) was compared using 16S rRNA gene sequencing for bacterial identification. Study participants completed dietary, oral hygiene, drooling, and …

Integrated Single-Cell Atlas Of Endothelial Cells Of The Human Lung, Jonas C Schupp, Taylor S Adams, Carlos Cosme, Micha Sam Brickman Raredon, Yifan Yuan, Norihito Omote, Sergio Poli, Maurizio Chioccioli, Kadi-Ann Rose, Edward P Manning, Maor Sauler, Giuseppe Deiuliis, Farida Ahangari, Nir Neumark, Arun C Habermann, Austin J Gutierrez, Linh T Bui, Robert Lafyatis, Richard W Pierce, Kerstin B Meyer, Martijn C Nawijn, Sarah A Teichmann, Nicholas E Banovich, Jonathan A Kropski, Laura E Niklason, Dana Pe'er, Xiting Yan, Robert J Homer, Ivan O Rosas, Naftali Kaminski

Faculty, Staff and Student Publications

BACKGROUND: Cellular diversity of the lung endothelium has not been systematically characterized in humans. We provide a reference atlas of human lung endothelial cells (ECs) to facilitate a better understanding of the phenotypic diversity and composition of cells comprising the lung endothelium.

METHODS: We reprocessed human control single-cell RNA sequencing (scRNAseq) data from 6 datasets. EC populations were characterized through iterative clustering with subsequent differential expression analysis. Marker genes were validated by fluorescent microscopy and in situ hybridization. scRNAseq of primary lung ECs cultured in vitro was performed. The signaling network between different lung cell types was studied. For cross-species …

White Matter Disruption In Pediatric Traumatic Brain Injury: Results From Enigma Pediatric Moderate To Severe Traumatic Brain Injury, Emily L Dennis, Karen Caeyenberghs, Kristen R Hoskinson, Tricia L Merkley, Stacy J Suskauer, Robert F Asarnow, Talin Babikian, Brenda Bartnik-Olson, Kevin Bickart, Erin D Bigler, Linda Ewing-Cobbs, Anthony Figaji, Christopher C Giza, Naomi J Goodrich-Hunsaker, Cooper B Hodges, Elizabeth S Hovenden, Andrei Irimia, Marsh Königs, Harvey S Levin, Hannah M Lindsey, Jeffrey E Max, Mary R Newsome, Alexander Olsen, Nicholas P Ryan, Adam T Schmidt, Matthew S Spruiell, Benjamin S C Wade, Ashley L Ware, Christopher G Watson, Anne L Wheeler, Keith Owen Yeates, Brandon A Zielinski, Peter Kochunov, Neda Jahanshad, Paul M Thompson, David F Tate, Elisabeth A Wilde

Faculty, Staff and Student Publications

OBJECTIVE: Our study addressed aims (1) to test the hypothesis that moderate-severe traumatic brain injury (TBI) in pediatric patients is associated with widespread white matter (WM) disruption, (2) to test the hypothesis that age and sex affect WM organization after injury, and (3) to examine associations between WM organization and neurobehavioral outcomes.

METHODS: Data from 10 previously enrolled, existing cohorts recruited from local hospitals and clinics were shared with the Enhancing NeuroImaging Genetics Through Meta-Analysis (ENIGMA) Pediatric Moderate/Severe TBI (msTBI) working group. We conducted a coordinated analysis of diffusion MRI (dMRI) data using the ENIGMA dMRI processing pipeline.

RESULTS: Five …

Therapeutic Efficacy Of A Potent Anti-Venezuelan Equine Encephalitis Virus Antibody Is Contingent On Fc Effector Function, Vanja Krneta-Stankic, Mark E Corkins, Adriana Paulucci-Holthauzen, Malgorzata Kloc, Andrew B Gladden, Rachel K Miller

Faculty, Staff and Student Publications

E-cadherin junctions facilitate assembly and disassembly of cell contacts that drive development and homeostasis of epithelial tissues. In this study, using Xenopus embryonic kidney and Madin-Darby canine kidney (MDCK) cells, we investigate the role of the Wnt/planar cell polarity (PCP) formin Daam1 (Dishevelled-associated activator of morphogenesis 1) in regulating E-cadherin-based intercellular adhesion. Using live imaging, we show that Daam1 localizes to newly formed cell contacts in the developing nephron. Furthermore, analyses of junctional filamentous actin (F-actin) upon Daam1 depletion indicate decreased microfilament localization and slowed turnover. We also show that Daam1 is necessary for efficient and timely localization of junctional …

Monitoring Self-Perceived Occupational Health Inequities In Central America, 2011 And 2018, Michael Silva-Peñaherrera, David Gimeno Ruiz De Porras, George L Delclos, Marianela Rojas Garbanzo, Pamela Merino-Salazar, Maria Lopez-Ruiz, Fernando G Benavides

Faculty, Staff and Student Publications

Objectives. to analyze changes in occupational health inequity between 2011 and 2018 among workers in Central America. Methods. Data were collected by face-to-face interviews at the workers' homes for the 2 Central America Working Conditions Surveys (n = 12 024 in 2011 and n = 9030 in 2018). We estimated health inequity gaps by means of absolute and relative population attributable risks and the weighted Keppel index. We stratified all analyses by gender. Results. Between 2011 and 2018, the proportion of workers reporting poor self-perceived health decreased both in women (from 32% to 29%) and men (from 33% to 30%). …

Research Hotspots And Trends Of Microrna In Periodontology And Dental Implantology: A Bibliometric Analysis, Kang Gao, Yiping Dou, Menghao Lv, Yihui Zhu, Sitong Hu, Pan Ma

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BACKGROUND: Periodontal disease is a leading cause of tooth loss, and microRNA (miRNA) has been shown to regulate various biological processes. This study aimed to quantitatively analyze the literature related to miRNA in periodontology and dental implantology and summarize the research hotspots and trends in this field.

METHODS: Literature records from 1985 to 2020 were obtained from the Web of Science Core Collection database. After manual selection, the data was used for cooperative network analysis, keyword co-occurrence analysis, and reference co-citation analysis and visualized by CiteSpace.

RESULTS: A total of 287 papers were analyzed between 2007 and 2020, and more …

Trends In Race/Ethnicity Of Pediatric Residents And Fellows: 2007-2019, Kimberly Montez, Emma A Omoruyi, Kenya Mcneal-Trice, Wendy J Mack, Lahia Yemane, Alissa R Darden, Christopher J Russell

Faculty, Staff and Student Publications

BACKGROUND AND OBJECTIVES: A diverse pediatric workforce reflecting the racial/ethnic representation of the US population is an important factor in eliminating health inequities. Studies reveal minimal improvements over time in the proportions of underrepresented in medicine (URiM) physicians; however, studies assessing trends in pediatric URiM trainee representation are limited. Our objective was to evaluate longitudinal trends in racial/ethnic representation among a cross-section of US pediatric trainees and to compare it to the US population.

METHODS: Repeated cross-sectional study of graduate medical education census data on self-reported race/ethnicity of pediatric residents and subspecialty fellows from 2007 to 2019. To evaluate trends …