Medicine and Health Sciences Commons^™

Impacts Of A Workplace-Based Weight-Control Intervention On Objective And Perceived Physical Activity Among A Subgroup Of Workers, Rachel Tabak, Ryan Colvin, Jaime R Strickland, Ann Marie Dale, Maura Kepper, Tara Ruggeri, Bradley Evanoff

2020-Current year OA Pubs

Physical activity (PA) has many benefits; however, groups facing barriers to health-promoting behaviors are less likely to be physically active. This may be addressed through workplace interventions. The current study employs objective (accelerometry) and perceived (International Physical Activity Questionnaire [IPAQ]) measures of PA among a subset of participants from the "Working for You" study, which tests a multi-level (work group and individual) workplace intervention targeted at workers with low-incomes. Linear mixed and hierarchical logistic regression models are used to determine the intervention's impact on moderate- to vigorous-PA (MVPA) and achieving the PA Guideline for Americans (≥150 minutes MVPA/week), respectively from …

Heavy Metals In Breast Implant Capsules And Breast Tissue: Findings From The Systemic Symptoms In Women-Biospecimen Analysis Study: Part 2, Roger Wixtrom, Caroline Glicksman, Marshall Kadin, Marisa Lawrence, Melinda Haws, Sarah Ferenz, James Sung, Patricia Mcguire

2020-Current year OA Pubs

BACKGROUND: Breast Implant Illness (BII), as described in recent medical literature and by social media, describes a range of symptoms in patients with breast implants for which there are no physical findings or laboratory results that explain their symptoms.

OBJECTIVES: Part 2 of this study aims to determine whether heavy metals are present in the capsules around saline and silicone implants and if there are statistical differences in the type or level of these metals between women with or without symptoms. Demographic data was collected to investigate potential alternate sources of metals: inhaled, absorbed, or ingested.

METHODS: A prospective, blinded …

Perioperative Mental Health Intervention Bundle For Older Surgical Patients: Protocol For An Intervention Development And Feasibility Study, Joanna Abraham, Katherine J Holzer, Emily M Lenard, Kenneth E Freedland, Bethany R Tellor Pennington, Rachel C Wolfe, Theresa A Cordner, Ana A Baumann, Mary Politi, Michael Simon Avidan, Eric Lenze

2020-Current year OA Pubs

INTRODUCTION: The perioperative period is high risk for older adults. Depression and anxiety are common perioperative problems, frequently coexisting with cognitive impairment. Older patients with these conditions are more likely than younger patients to experience postoperative delirium, long hospital stays, poor quality of life and rehospitalisation. These experiences can, in turn, exacerbate anxiety and depressive symptoms. Despite these risks, little is known about how to treat perioperative anxiety and depression among older adults.

METHODS AND ANALYSIS: We designed a feasibility study of a perioperative mental health intervention bundle to improve perioperative mental health, specifically depression and anxiety. The overarching goals …

C10pred: A First Machine Learning Based Tool To Predict C10 Family Cysteine Peptidases Using Sequence-Derived Features, Adeel Malik, Nitin Mahajan, Tanveer Ali Dar, Chang-Bae Kim

2020-Current year OA Pubs

No abstract provided.

Layer-Specific Developmentally Precise Axon Targeting Of Transient Suppressed-By-Contrast Retinal Ganglion Cells (Tsbc Rgcs), Nai-Wen Tien, Carmela Vitale, Tudor C Badea, Daniel Kerschensteiner

2020-Current year OA Pubs

The mouse retina encodes diverse visual features in the spike trains of >40 retinal ganglion cell (RGC) types. Each RGC type innervates a specific subset of the >50 retinorecipient brain areas. Our catalog of RGC types and feature representations is nearing completion. Yet, we know little about where specific RGC types send their information. Furthermore, the developmental strategies by which RGC axons choose their targets and pattern their terminal arbors remain obscure. Here, we identify a genetic intersection (

High-Resolution Imaging Of Protein Secretion At The Single-Cell Level Using Plasmon-Enhanced Fluorodot Assay, Anushree Seth, Ekansh Mittal, Jingyi Luan, Samhitha Kolla, Monty B Mazer, Hemant Joshi, Rohit Gupta, Priya Rathi, Zheyu Wang, Jeremiah J Morrissey, Joel D Ernst, Cynthia Portal-Celhay, Sharon Celeste Morley, Jennifer A Philips, Srikanth Singamaneni

2020-Current year OA Pubs

Secreted proteins mediate essential physiological processes. With conventional assays, it is challenging to map the spatial distribution of proteins secreted by single cells, to study cell-to-cell heterogeneity in secretion, or to detect proteins of low abundance or incipient secretion. Here, we introduce the "FluoroDOT assay," which uses an ultrabright nanoparticle plasmonic-fluor that enables high-resolution imaging of protein secretion. We find that plasmonic-fluors are 16,000-fold brighter, with nearly 30-fold higher signal-to-noise compared with conventional fluorescence labels. We demonstrate high-resolution imaging of different secreted cytokines in the single-plexed and spectrally multiplexed FluoroDOT assay that revealed cellular heterogeneity in secretion of multiple proteins …

Association Between Antidepressant Use And Ed Or Hospital Visits In Outpatients With Sars-Cov-2, Bradley A Fritz, Nicolas Hoertel, Eric J Lenze, Farid Jalali, Angela M Reiersen

2020-Current year OA Pubs

Antidepressants have previously been associated with better outcomes in patients hospitalized with COVID-19, but their effect on clinical deterioration among ambulatory patients has not been fully explored. The objective of this study was to assess whether antidepressant exposure was associated with reduced emergency department (ED) or hospital visits among ambulatory patients with SARS-CoV-2 infection. This retrospective cohort study included adult patients (N = 25 034) with a positive SARS-CoV-2 test performed in a non-hospital setting. Logistic regression analyses tested associations between home use of antidepressant medications and a composite outcome of ED visitation or hospital admission within 30 days. Secondary …

Mutational Analyses Of The Cysteine-Rich Domain Of Yvh1, A Protein Required For Translational Competency In Yeast, Hannah Zang, Robert Shackelford, Alice Bewley, Alexander E Beeser

2020-Current year OA Pubs

Ribosome assembly is a complex biological process facilitated by >200

The Feel Of Inclusivity, Kristen M Patti, Gary J Patti

2020-Current year OA Pubs

Collaboration between diverse groups with different perspectives promotes scientific discovery. To enhance these partnerships and facilitate communication, innovative advances in universal design are essential.

Human Total, Basal And Activity Energy Expenditures Are Independent Of Ambient Environmental Temperature, Xueying Zhang, Susan B Racette, Et Al.

2020-Current year OA Pubs

Lower ambient temperature (T

A User-Friendly Tool For Cloud-Based Whole Slide Image Segmentation With Examples From Renal Histopathology, Brendon Lutnick, Sanjay Jain, Et Al

2020-Current year OA Pubs

Background: Image-based machine learning tools hold great promise for clinical applications in pathology research. However, the ideal end-users of these computational tools (e.g., pathologists and biological scientists) often lack the programming experience required for the setup and use of these tools which often rely on the use of command line interfaces.

Methods: We have developed

Results: By segmenting glomeruli, interstitial fibrosis and tubular atrophy, and vascular structures from renal and non-renal WSIs, we demonstrate the scalability, best practices for transfer learning, and effects of dataset variability. Finally, we demonstrate an application for animal model research, analyzing glomerular features in three …

Natural Locus Coeruleus Dynamics During Feeding, Natale R Sciolino, Alexxai V Kravitz, Et Al

2020-Current year OA Pubs

Recent data demonstrate that noradrenergic neurons of the locus coeruleus (LC-NE) are required for fear-induced suppression of feeding, but the role of endogenous LC-NE activity in natural, homeostatic feeding remains unclear. Here, we found that LC-NE activity was suppressed during food consumption, and the magnitude of this neural response was attenuated as mice consumed more pellets throughout the session, suggesting that LC responses to food are modulated by satiety state. Visual-evoked LC-NE activity was also attenuated in sated mice, suggesting that satiety state modulates LC-NE encoding of multiple behavioral states. We also found that food intake could be attenuated by …

Cochlear Ribbon Synapse Maturation Requires Nlgn1 And Nlgn3, Miguel A Ramirez, Yuzuru Ninoyu, Cayla Miller, Leonardo R Andrade, Seby Edassery, Ewa Bomba-Warczak, Briana Ortega, Uri Manor, Mark A Rutherford, Rick A Friedman, Jeffrey N Savas

2020-Current year OA Pubs

Hearing depends on precise synaptic transmission between cochlear inner hair cells and spiral ganglion neurons through afferent ribbon synapses. Neuroligins (Nlgns) facilitate synapse maturation in the brain, but they have gone unstudied in the cochlea. We report

Examining The Complementarity Between The Eric Compilation Of Implementation Strategies And The Behaviour Change Technique Taxonomy: A Qualitative Analysis, Sheena Mchugh, Justin Presseau, Courtney T Luecking, Byron J Powell

2020-Current year OA Pubs

BACKGROUND: Efforts to generate evidence for implementation strategies are frustrated by insufficient description. The Expert Recommendations for Implementing Change (ERIC) compilation names and defines implementation strategies; however, further work is needed to describe the actions involved. One potentially complementary taxonomy is the behaviour change techniques (BCT) taxonomy. We aimed to examine the extent and nature of the overlap between these taxonomies.

METHODS: Definitions and descriptions of 73 strategies in the ERIC compilation were analysed. First, each description was deductively coded using the BCT taxonomy. Second, a typology was developed to categorise the extent of overlap between ERIC strategies and BCTs. …

Human Induced Pluripotent Stem Cell Engineering Establishes A Humanized Mouse Platform For Pediatric Low-Grade Glioma Modeling, Corina Anastasaki, Jit Chatterjee, Olivia Cobb, Shilpa Sanapala, Suzanne M Scheaffer, Amanda De Andrade Costa, Anna F Wilson, Chloe M Kernan, Ameera H Zafar, Xia Ge, Joel R Garbow, Fausto J Rodriguez, David H Gutmann

2020-Current year OA Pubs

A major obstacle to identifying improved treatments for pediatric low-grade brain tumors (gliomas) is the inability to reproducibly generate human xenografts. To surmount this barrier, we leveraged human induced pluripotent stem cell (hiPSC) engineering to generate low-grade gliomas (LGGs) harboring the two most common pediatric pilocytic astrocytoma-associated molecular alterations, NF1 loss and KIAA1549:BRAF fusion. Herein, we identified that hiPSC-derived neuroglial progenitor populations (neural progenitors, glial restricted progenitors and oligodendrocyte progenitors), but not terminally differentiated astrocytes, give rise to tumors retaining LGG histologic features for at least 6 months in vivo. Additionally, we demonstrated that hiPSC-LGG xenograft formation requires the absence …

Engineering Rotating Apical-Out Airway Organoid For Assessing Respiratory Cilia Motility, Piyumi Wijesekara, Prakarsh Yadav, Lydia A. Perkins, Donna B. Stolz, Jonathan M. Franks, Simon C. Watkins, Emily Reinoso Jacome, Steven L. Brody, Amjad Horani, Jian Xu, Amir Barati Farimani, Xi Ren

2020-Current year OA Pubs

Motile cilia project from the airway apical surface and directly interface with inhaled external environment. Owing to cilia's nanoscale dimension and high beating frequency, quantitative assessment of their motility remains a sophisticated task. Here we described a robust approach for reproducible engineering of apical-out airway organoid (AOAO) from a defined number of cells. Propelled by exterior-facing cilia beating, the mature AOAO exhibited stable rotational motion when surrounded by Matrigel. We developed a computational framework leveraging computer vision algorithms to quantify AOAO rotation and correlated it with the direct measurement of cilia motility. We further established the feasibility of using AOAO …

Integrating De Novo And Inherited Variants In 42,607 Autism Cases Identifies Mutations In New Moderate-Risk Genes, Xueya Zhou, Tychele N. Turner, Et Al

2020-Current year OA Pubs

No abstract provided.

Localization Of Epigenetic Markers In Leishmania Chromatin, Jacquelyn R Mcdonald, Bryan C Jensen, Aakash Sur, Iris L K Wong, Stephen M Beverley, Peter J Myler

2020-Current year OA Pubs

Eukaryotes use histone variants and post-translation modifications (PTMs), as well as DNA base modifications, to regulate DNA replication/repair, chromosome condensation, and gene expression. Despite the unusual organization of their protein-coding genes into large polycistronic transcription units (PTUs), trypanosomatid parasites also employ a "histone code" to control these processes, but the details of this epigenetic code are poorly understood. Here, we present the results of experiments designed to elucidate the distribution of histone variants and PTMs over the chromatin landscape of

Automated Diagnosing Primary Open-Angle Glaucoma From Fundus Image By Simulating Human's Grading With Deep Learning, Mingquan Lin, Bojian Hou, Lei Liu, Mae Gordon, Michael Kass, Fei Wang, Sarah H Van Tassel, Yifan Peng

2020-Current year OA Pubs

Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness worldwide. Although deep learning methods have been proposed to diagnose POAG, it remains challenging to develop a robust and explainable algorithm to automatically facilitate the downstream diagnostic tasks. In this study, we present an automated classification algorithm, GlaucomaNet, to identify POAG using variable fundus photographs from different populations and settings. GlaucomaNet consists of two convolutional neural networks to simulate the human grading process: learning the discriminative features and fusing the features for grading. We evaluated GlaucomaNet on two datasets: Ocular Hypertension Treatment Study (OHTS) participants and the Large-scale Attention-based …

Employment Loss And Food Insecurity - Race And Sex Disparities In The Context Of Covid-19, Jacquelyn V Coats, Sarah Humble, Kimberly J Johnson, Havisha Pedamallu, Bettina F Drake, Elvin Geng, Charles W Goss, Kia L Davis

2020-Current year OA Pubs

INTRODUCTION: Applying an intersectional framework, we examined sex and racial inequality in COVID-19-related employment loss (ie, job furlough, layoff, and reduced pay) and food insecurity (ie, quality and quantity of food eaten, food worry, and receipt of free meals or groceries) among residents in Saint Louis County, Missouri.

METHODS: We used cross-sectional data from adults aged 18 or older (N = 2,146), surveyed by using landlines or cellular phones between August 12, 2020, and October 27, 2020. We calculated survey-weighted prevalence of employment loss and food insecurity for each group (Black female, Black male, White female, White male). Odds ratios …

Defining Hierarchical Protein Interaction Networks From Spectral Analysis Of Bacterial Proteomes, Mark A Zaydman, Alexander S Little, Fidel Haro, Valeryia Aksianiuk, William J Buchser, Aaron Diantonio, Jeffrey I Gordon, Jeffrey Milbrandt, Arjun S Raman

2020-Current year OA Pubs

Cellular behaviors emerge from layers of molecular interactions: proteins interact to form complexes, pathways, and phenotypes. We show that hierarchical networks of protein interactions can be defined from the statistical pattern of proteome variation measured across thousands of diverse bacteria and that these networks reflect the emergence of complex bacterial phenotypes. Our results are validated through gene-set enrichment analysis and comparison to existing experimentally derived databases. We demonstrate the biological utility of our approach by creating a model of motility in

Pediatric Open Long-Bone Fracture And Subsequent Deep Infection Risk: The Importance Of Early Hospital Care, Andrew W Kuhn, Stockton C Troyer, Jeffrey E Martus

2020-Current year OA Pubs

The purpose of the current study was to identify risk factors for deep infection after an open long-bone fracture in pediatric patients. Systematic billing queries were utilized to identify pediatric patients who presented to a level I trauma center from 1998 to 2019 with open long-bone fractures. There were 303 open long-bone fractures, and 24 (7.9%) of these became infected. Fractures of the tibia/fibula (

Sars-Cov-2 Productively Infects Primary Human Immune System Cells In Vitro And In Covid-19 Patients, Marjorie C Pontelli, Sean P J Whelan, Et Al.

2020-Current year OA Pubs

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is associated with a hyperinflammatory state and lymphocytopenia, a hallmark that appears as both signature and prognosis of disease severity outcome. Although cytokine storm and a sustained inflammatory state are commonly associated with immune cell depletion, it is still unclear whether direct SARS-CoV-2 infection of immune cells could also play a role in this scenario by harboring viral replication. We found that monocytes, as well as both B and T lymphocytes, were susceptible to SARS-CoV-2 infection in vitro, accumulating double-stranded RNA consistent with viral RNA replication and ultimately leading to expressive …

A Central Alarm System That Gates Multi-Sensory Innate Threat Cues To The Amygdala, Sukjae J Kang, Shijia Liu, Mao Ye, Dong-Il Kim, Gerald M Pao, Bryan A Copits, Benjamin Z Roberts, Kuo-Fen Lee, Michael R Bruchas, Sung Han

2020-Current year OA Pubs

Perception of threats is essential for survival. Previous findings suggest that parallel pathways independently relay innate threat signals from different sensory modalities to multiple brain areas, such as the midbrain and hypothalamus, for immediate avoidance. Yet little is known about whether and how multi-sensory innate threat cues are integrated and conveyed from each sensory modality to the amygdala, a critical brain area for threat perception and learning. Here, we report that neurons expressing calcitonin gene-related peptide (CGRP) in the parvocellular subparafascicular nucleus in the thalamus and external lateral parabrachial nucleus in the brainstem respond to multi-sensory threat cues from various …

Oropouche Orthobunyavirus Infection Is Mediated By The Cellular Host Factor Lrp1, Madeline M Schwarz, David A Price, Safder S Ganaie, Annie Feng, Nawneet Mishra, Ryan M Hoehl, Farheen Fatma, Sarah H Stubbs, Sean P J Whelan, Xiaoxia Cui, Takeshi Egawa, Daisy W Leung, Gaya K Amarasinghe, Amy L Hartman

2020-Current year OA Pubs

Oropouche orthobunyavirus (OROV;

Malic Enzyme 1 Absence In Synovial Sarcoma Shifts Antioxidant System Dependence And Increases Sensitivity To Ferroptosis Induction With Acxt-3102, Caitlyn B Brashears, Bethany C Prudner, Richa Rathore, Katharine E Caldwell, Sara E S Lange, Jennifer K Sehn, Dirk Spitzer, Regis O'Keefe, Jason M Held, William Hawkins, Brian A Van Tine, Carina A. Dehner, Et Al

2020-Current year OA Pubs

PURPOSE: To investigate the metabolism of synovial sarcoma (SS) and elucidate the effect of malic enzyme 1 absence on SS redox homeostasis.

EXPERIMENTAL DESIGN: ME1 expression was measured in SS clinical samples, SS cell lines, and tumors from an SS mouse model. The effect of ME1 absence on glucose metabolism was evaluated utilizing Seahorse assays, metabolomics, and C13 tracings. The impact of ME1 absence on SS redox homeostasis was evaluated by metabolomics, cell death assays with inhibitors of antioxidant systems, and measurements of intracellular reactive oxygen species (ROS). The susceptibility of ME1-null SS to ferroptosis induction was interrogated in vitro …

Normal Aging In Mice Is Associated With A Global Reduction In Cortical Spectral Power And Network-Specific Declines In Functional Connectivity, Asher J Albertson, Eric C Landsness, Michelle J Tang, Ping Yan, Hanyang Miao, Zachary P Rosenthal, Byungchan Kim, Joseph C Culver, Adam Q Bauer, Jin-Moo Lee

2020-Current year OA Pubs

Normal aging is associated with a variety of neurologic changes including declines in cognition, memory, and motor activity. These declines correlate with neuronal changes in synaptic structure and function. Degradation of brain network activity and connectivity represents a likely mediator of age-related functional deterioration resulting from these neuronal changes. Human studies have demonstrated both general decreases in spontaneous cortical activity and disruption of cortical networks with aging. Current techniques used to study cerebral network activity are hampered either by limited spatial resolution (e.g. electroencephalography, EEG) or limited temporal resolution (e.g., functional magnetic resonance imaging, fMRI). Here we utilize mesoscale imaging …

Visualizing Molecular Interactions That Determine Assembly Of A Bullet-Shaped Vesicular Stomatitis Virus Particle, Simon Jenni, Joshua A Horwitz, Louis-Marie Bloyet, Sean P J Whelan, Stephen C Harrison

2020-Current year OA Pubs

Vesicular stomatitis virus (VSV) is a negative-strand RNA virus with a non-segmented genome, closely related to rabies virus. Both have characteristic bullet-like shapes. We report the structure of intact, infectious VSV particles determined by cryogenic electron microscopy. By compensating for polymorphism among viral particles with computational classification, we obtained a reconstruction of the shaft ("trunk") at 3.5 Å resolution, with lower resolution for the rounded tip. The ribonucleoprotein (RNP), genomic RNA complexed with nucleoprotein (N), curls into a dome-like structure with about eight gradually expanding turns before transitioning into the regular helical trunk. Two layers of matrix (M) protein link …

Precision Dynamical Mapping Using Topological Data Analysis Reveals A Hub-Like Transition State At Rest, Manish Saggar, James M Shine, Raphaël Liégeois, Nico U F Dosenbach, Damien Fair

2020-Current year OA Pubs

In the absence of external stimuli, neural activity continuously evolves from one configuration to another. Whether these transitions or explorations follow some underlying arrangement or lack a predictable ordered plan remains to be determined. Here, using fMRI data from highly sampled individuals (~5 hours of resting-state data per individual), we aimed to reveal the rules that govern transitions in brain activity at rest. Our Topological Data Analysis based Mapper approach characterized a highly visited transition state of the brain that acts as a switch between different neural configurations to organize the spontaneous brain activity. Further, while the transition state was …

Implementing Screening For Hypertension In Archetypal Hiv Primary Care: A Mixed-Methods Assessment, Lydia Buzaalirwa, Lydia Nambala, Grace Banturaki, Penninah Iutung Amor, Anne Katahoire, Elvin Geng, Aggrey Semeere

2020-Current year OA Pubs

BACKGROUND: High prevalence of HIV and hypertension in sub-Saharan Africa puts adults living with HIV (ALWH) at high risk of end-organ complications. Both World Health Organization (WHO) and national guidelines recommend screening and treatment of hypertension among ALWH on antiretroviral therapy (ART). We evaluated the implementation of hypertension screening among adults on ART at three Uganda Cares Primary care facilities.

METHODS: Using a sequential explanatory mixed-methods approach, we reviewed patient records, and interviewed both patients and providers during 2018 and 2019. We obtained demographics, clinical and blood pressure (BP) measurements via records review. We estimate the period prevalence of screening …