Digital Commons Network^™

Amyloid-Β Predominant Alzheimer’S Disease Neuropathologic Change, Gabor G. Kovacs, Yuriko Katsumata, Xian Wu, Khine Zin Aung, David Fardo, Shelley L. Forrest, Peter T. Nelson

Neurology Faculty Publications

Different subsets of Alzheimer’s disease neuropathologic change (ADNC), including the intriguing set of individuals with severe/widespread amyloid-β (Aβ) plaques but no/mild tau tangles [Aβ-predominant (AP)-ADNC], may have distinct genetic and clinical features. Analysing National Alzheimer’s Coordinating Center data, we stratified 1187 participants into AP-ADNC (n = 95), low Braak primary age-related tauopathy (PART; n = 185), typical-ADNC (n = 832) and high-Braak PART (n = 75). AP-ADNC differed in some clinical features and genetic polymorphisms in the APOE, SNX1, WNT3/MAPT and IGH genes. We conclude that AP-ADNC differs from classical ADNC with implications for in vivo studies.

Forgotten Victims: Exploring The Right To Family Integrity As A Form Of Redress For Children Of Wrongfully Convicted Parents, Emily Byers Olson

Minnesota Law Review Vols. 106:2 onward (2021-present)

Almost five million children in the United States have had a parent incarcerated at some point in their lives. Children who grow up with an incarcerated parent face immense challenges, including mental health issues, problems at school, economic hardship, and the propensity to participate in criminal activity themselves. When it turns out that the child’s parent was wrongfully convicted and incarcerated for a crime they did not commit, the challenges faced by the child are even more devastating. One way that a child may be able to obtain a remedy in these instances is through their due process right to …

Understanding Women Leaders’ Perceptions Of Compassion In Higher Education, Elle (Kelleen H.) Griffin

Doctor of Education (EdD)

This qualitative research study was conducted to better understand women leaders’ perceptions of compassion in higher education. Specifically, what are the types of distressing events and the settings wherein a compassionate response was offered; what are the compassionate actions experienced or offered, and what might enhance or inhibit the process of compassion. The study was also conducted to examine if and how compassion enhances or influences learning (Knowles, 2011), growing and healing (Rogers, 1967), and thriving at work (McGregor, 1960). Kanov et al.’s (2017) process theory of compassion was used as the theoretical framework to gain insight into compassion in …

Enhancing Elementary Students Conceptual Understandings Of Scientific Phenomena: The Impact Of Steam-First And Stem-First Approaches, Michael W. Corrigan, Joseph T. Wong, Doug Grove, Sage Anderson, Bradley S. Hughes

Elementary & Secondary Education Faculty Research

This study delves into the realm of student conceptual change, examining shifting understandings as important steppingstones on the path to sensemaking and canonical understanding in science education. It explores the potential of a STEAM (Science, Technology, Engineering, Arts, and Math) curriculum, aiming to provide equitable learning opportunities, especially for emerging bilingual (EB) student populations. To achieve this, elementary school educators from randomly assigned schools received professional development training to implement a novel curriculum encompassing both STEM and STEAM (STEM + Arts) approaches to life science instruction. These approaches comprised: (1) an NGSS-aligned STEM unit employing inquiry-based science instruction; (2) an …

Climate Change And Sexual And Reproductive Health, Population Council

Climate and Environmental Changes

The Council's Population, Environmental Risks, and the Climate Crisis (PERCC) Initiative tracks direct and indirect links between climate hazards to sexual and reproductive health outcomes, with a focus on extreme heat and salinity. In this brief, we highlight evidence and solutions on sexual and reproductive health and rights (SRHR) in disaster settings; SRHR linkages with arsenic and highly saline drinking water, fertility and drought; and demographic shifts following disasters.

“We Don’T Have To Take Things So Seriously”: Humor, Queer Livability, And Homonormativity For A Rural English Language Arts Teacher, Brandon Haskey-Valerius, Ryan Schey

The Rural Educator

Extending and challenging existing research about LGBTQIA+ life in rural educational contexts, this ethnographically informed qualitative study describes how Lulu—a white, cisgender, queer secondary English language arts teacher in a rural, public school in the Midwest—discursively constructed the functions of her humor with respect to teaching, queerness, and their interrelations. Drawing on social theorizations of humor, particularly queer theorizations of humor, this article argues that Lulu described her humor as having three functions: building relationships, facilitating learning, and opening possibilities for queerness. These findings illustrate tensions in that Lulu leveraged humor to build a livable, joyous career in which she …

Life Among The Sand Grains, Will M. Ballentine, N. G. Roberts, M. K. Yap-Chiongco, K. M. Halanych, K. M. Kocot

Biology Faculty Works

Have you ever played with sand at the beach? Did you know you were also playing with thousands of tiny animals? The sand in the ocean is home to many small creatures called meiofauna, but you can only see them under a magnifying glass or microscope. Meiofauna are so tiny that sand grains seem like boulders to them. Meiofauna are too small to move these boulders, so they wriggle through spaces between them. Living in such tight spaces has led them to evolve long, skinny body shapes like worms. They also have special body parts to grip sand grains and …

Conformation And Membrane Topology Of The N-Terminal Ectodomain Of Influenza A M2 Protein, Kyra C. Roepke , '24, Kathleen P. Howard

Chemistry & Biochemistry Faculty Works

The N-terminal ectodomain of the influenza A M2 protein is a target for universal influenza vaccine development and novel antiviral strategies. Despite the significance of this domain, it is poorly understood and most structural studies of the M2 protein have disregarded the N-terminal ectodomain in their analyses. Here, we report conformational properties and describe insights into the membrane topology of sites along the N-terminal ectodomain. Full-length M2 protein is embedded in lipid bilayer nanodiscs and studied using site-directed spin labeling electron paramagnetic resonance spectroscopy. Results are consistent with a turn in the middle of the ectodomain that changes in proximity …

Laina Farhat-Holzman: Distinguished Iscsc Author, Incisive Thinker, Fearless Commentator, Innovative Leader, Joseph Drew

Comparative Civilizations Review

It is a sad duty to report that a luminary who was long associated with this journal and with the leadership of the International Society for the Comparative Study of Civilizations, Dr. Laina Farhat-Holzman, has died.

Professor Christopher Berard And The Knights Of The Seminar Table, Michael Hagan

Arthurian Epistolary Project (HUM 270-001)

From https://news.providence.edu/king-arthur-course/

A new course offered by Christopher Berard, Ph.D. ’07, adjunct professor of humanities, introduced students to selections in translation from the massive Lancelot-Grail Cycle of Old French prose Arthurian romances (c. 1210–30), the most comprehensive and canonical version of the Arthurian legend ever written.

The 1.5-credit course, King Arthur: Monarch of the Medieval Imagination, culminated in a creative writing project in which students composed a mock letter according to the formal conventions of medieval epistolary documents such as public acts and private letters. Each student assumed the persona of one Arthurian character, addressed the document to another …

Arginine Metabolism Is A Biomarker Of Red Blood Cell And Human Aging., Julie A Reisz, Eric J Earley, Travis Nemkov, Alicia Key, Daniel Stephenson, Gregory R Keele, Monika Dzieciatkowska, Steven L Spitalnik, Eldad A Hod, Steven Kleinman, Nareg H Roubinian, Mark T Gladwin, Kirk C Hansen, Philip J Norris, Michael P Busch, James C Zimring, Gary Churchill, Grier P Page, Angelo D'Alessandro

Faculty Research 2025

Increasing global life expectancy motivates investigations of molecular mechanisms of aging and age-related diseases. This study examines age-associated changes in red blood cells (RBCs), the most numerous host cell in humans. Four cohorts, including healthy individuals and patients with sickle cell disease, were analyzed to define age-dependent changes in RBC metabolism. Over 15,700 specimens from 13,757 humans were examined, a major expansion over previous studies of RBCs in aging. Multi-omics approaches identified chronological age-related alterations in the arginine pathway with increased arginine utilization in RBCs from older individuals. These changes were consistent across healthy and sickle cell disease cohorts and …

Polyploid Superficial Uroepithelial Bladder Barrier Cells Express Features Of Cellular Senescence Across The Lifespan And Are Insensitive To Senolytics., Iman M Al-Naggar, Maria Antony, Dylan Baker, Lichao Wang, Lucas Da Cunha Godoy, Chia-Ling Kuo, Matthew O Fraser, Phillip P Smith, Ming Xu, George A Kuchel

Faculty Research 2025

Lower urinary tract dysfunction (LUTD) increases with aging. Ensuing symptoms including incontinence greatly impact quality of life, isolation, depression, and nursing home admission. The aging bladder is hypothesized to be central to this decline, however, it remains difficult to pinpoint a singular strong driver of aging-related bladder dysfunction. Many molecular and cellular changes occur with aging, contributing to decreased resilience to internal and external stressors, affecting urinary control and exacerbating LUTD. In this study, we examined whether cellular senescence, a cell fate involved in the etiology of most aging diseases, contributes to LUTD. We found that umbrella cells (UCs), luminal …

Intrinsic-Dimension Analysis For Guiding Dimensionality Reduction And Data Fusion In Multi-Omics Data Processing., Jessica Gliozzo, Mauricio Soto-Gomez, Valentina Guarino, Arturo Bonometti, Alberto Cabri, Emanuele Cavalleri, Justin Reese, Peter N Robinson, Marco Mesiti, Giorgio Valentini, Elena Casiraghi

Faculty Research 2025

Multi-omics data have revolutionized biomedical research by providing a comprehensive understanding of biological systems and the molecular mechanisms of disease development. However, analyzing multi-omics data is challenging due to high dimensionality and limited sample sizes, necessitating proper data-reduction pipelines to ensure reliable analyses. Additionally, its multimodal nature requires effective data-integration pipelines. While several dimensionality reduction and data fusion algorithms have been proposed, crucial aspects are often overlooked. Specifically, the choice of projection space dimension is typically heuristic and uniformly applied across all omics, neglecting the unique high dimension small sample size challenges faced by individual omics. This paper introduces a …

Genomic Reanalysis Of A Pan-European Rare-Disease Resource Yields New Diagnoses., Steven Laurie, Wouter Steyaert, Elke De Boer, Kiran Polavarapu, Nika Schuermans, Anna K Sommer, German Demidov, Kornelia Ellwanger, Ida Paramonov, Coline Thomas, Stefan Aretz, Jonathan Baets, Elisa Benetti, Gemma Bullich, Patrick F Chinnery, Jill Clayton-Smith, Enzo Cohen, Daniel Danis, Jean-Madeleine De Sainte Agathe, Anne-Sophie Denommé-Pichon, Jordi Diaz-Manera, Stephanie Efthymiou, Laurence Faivre, Marcos Fernandez-Callejo, Mallory Freeberg, José Garcia-Pelaez, Lena Guillot-Noel, Tobias B Haack, Mike Hanna, Holger Hengel, Rita Horvath, Henry Houlden, Adam Jackson, Lennart Johansson, Mridul Johari, Erik-Jan Kamsteeg, Melanie Kellner, Tjitske Kleefstra, Didier Lacombe, Hanns Lochmüller, Estrella López-Martín, Alfons Macaya, Anna Marcé-Grau, Aleš Maver, Heba Morsy, Francesco Muntoni, Francesco Musacchia, Isabelle Nelson, Vincenzo Nigro, Catarina Olimpio, Carla Oliveira, Jaroslava Paulasová Schwabová, Martje G Pauly, Borut Peterlin, Sophia Peters, Rolph Pfundt, Giulio Piluso, Davide Piscia, Manuel Posada, Selina Reich, Alessandra Renieri, Lukas Ryba, Karolis Šablauskas, Marco Savarese, Ludger Schöls, Leon Schütz, Verena Steinke-Lange, Giovanni Stevanin, Volker Straub, Marc Sturm, Morris A Swertz, Marco Tartaglia, Iris B A W Te Paske, Rachel Thompson, Annalaura Torella, Christina Trainor, Bjarne Udd, Liedewei Van De Vondel, Bart Van De Warrenburg, Jeroen Van Reeuwijk, Jana Vandrovcova, Antonio Vitobello, Janet Vos, Emílie Vyhnálková, Robin Wijngaard, Carlo Wilke, Doreen William, Jishu Xu, Burcu Yaldiz, Luca Zalatnai, Birte Zurek, Solve-Rd Ditf-Genturis, Solve-Rd Ditf-Ithaca, Solve-Rd Ditf-Euro-Nmd, Solve-Rd Ditf-Rnd, Solve-Rd Consortium, Anthony J Brookes, Teresinha Evangelista, Christian Gilissen, Holm Graessner, Nicoline Hoogerbrugge, Stephan Ossowski, Olaf Riess, Rebecca Schüle, Matthis Synofzik, Alain Verloes, Leslie Matalonga, Han G Brunner, Katja Lohmann, Richarda M De Voer, Ana Töpf, Lisenka E L M Vissers, Sergi Beltran, Alexander Hoischen

Faculty Research 2025

Genetic diagnosis of rare diseases requires accurate identification and interpretation of genomic variants. Clinical and molecular scientists from 37 expert centers across Europe created the Solve-Rare Diseases Consortium (Solve-RD) resource, encompassing clinical, pedigree and genomic rare-disease data (94.5% exomes, 5.5% genomes), and performed systematic reanalysis for 6,447 individuals (3,592 male, 2,855 female) with previously undiagnosed rare diseases from 6,004 families. We established a collaborative, two-level expert review infrastructure that allowed a genetic diagnosis in 506 (8.4%) families. Of 552 disease-causing variants identified, 464 (84.1%) were single-nucleotide variants or short insertions/deletions. These variants were either located in recently published novel disease …

Prediction Of Lacosamide Concentrations To Support Dose Optimization During Pregnancy, Jessica M. Barry, Sílvia M. Illamola, Page B. Pennell, Catherine M.T. Sherwin, Kimford J. Meador, Angela K. Birnbaum

Pediatrics Faculty Publications

Objective: We aimed to quantify and predict lacosamide exposure during pregnancy by developing a pregnancy physiologically-based pharmacokinetic model, allowing the prediction of potential dose increases to support maintaining a patient's preconception lacosamide concentrations. Methods: Models for nonpregnant adults and pregnant female patients were constructed using physiochemical and pharmacological parameters identified from literature review. Evaluation of plasma concentration data from human males was digitized froM.T.he literature. Concentration data in nonpregnant and pregnant human females were available froM.T.he Maternal Outcomes and Neurodevelopmental Effects of Antiepileptic Drugs (MONEAD) study, a longitudinal observational study which followed 11 nonpregnant and 16 pregnant women receiving lacosamide. …

Himmelfarb Headlines - February/March 2025, The George Washington University, Himmelfarb Health Sciences Library

Himmelfarb Headlines (2009 - present)

News, information, and resources relating to Himmelfarb Library that is of interest to patrons.

Campus Chronicle, Lara Jones, Katie Hirth, Jayden Park, Kiofwe Kapepula, Joyanna Huang, Jaedyn Henry, Isaiah Cardines, Samantha Russell, Derek Jensen, Andy Langager

Campus Chronicle

No abstract provided.

Males Differ More Between Developmental Stages Than Females, And Plasticity To Light Is Stage-Dependent In The Tropical Plant Marchantia Inflexa, Jonathan D. Moore, D. Nicholas Mcletchie

Biology Faculty Publications

Plants have evolved strategies to maintain photosynthesis and mitigate tissue-damaging high light. In some dioecious seed plants, these strategies are sexually dimorphic and are linked to spatial segregation of the sexes (SSS) along light gradients. In vascular tissue-free plants (bryophytes) with separate sexes, SSS is common, but how light gradients, sexual dimorphisms, and SSS correlate is not well understood. To test if sexual dimorphisms in vegetative or sexual stages lead to light-associated SSS in bryophytes, we used Marchantia inflexa whose males occupy a wider range of light conditions, including higher light conditions, than females. We also tested if changes in …

Ear Pinna Growth And Differentiation Is Conserved In Murids And Requires Bmp Signaling For Chondrocyte Proliferation, Robyn S. Allen, Shishir K. Biswas, Ashley W. Seifert

Biology Faculty Publications

Despite being a major target of reconstructive surgery, development of the ear pinna remains poorly studied. Here, we provide a cellular characterization of late gestational and postnatal ear pinna development in two rodents and investigate the role of BMP5 in expansion and differentiation of auricular elastic cartilage. We find that ear pinna development is largely conserved between Mus musculus and the highly regenerative Acomys dimidiatus. The pattern of pre-cartilaginous cells is established early in development. These cells are specified into chondroblasts before ear unfolding and then undergo extensive proliferation before maturation. The elastic cartilage, connective tissue fibroblasts, dermal papilla and …

Uav-Based Phytoforensics: Hyperspectral Image Analysis To Remotely Detect Explosives Using Maize (Zea Mays), Paul V. Manley, Stephen M. Via, Joel G. Burken

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Remnant explosive devices are a deadly nuisance to both military personnel and civilians. Traditional mine detection and clearing is dangerous, time-consuming, and expensive. And routine production and testing of explosives can create groundwater contamination issues. Remote detection methods could be rapidly deployed in vegetated areas containing explosives as they are known to cause stress in vegetation that is detectable with hyperspectral sensors. Hyperspectral imagery was employed in a mesocosm study comparing stress from a natural source (drought) to that of plants exposed to two different concentrations of Royal Demolition Explosive (RDX; 250 mg kg−1, 500 mg kg−1). Classification was accomplished …

Empowering Citizens Through The Development And Deployment Of A Community-Based Environmental Health Reporting Tool, Willow Sauermilch, Jennifer Irving, Margaret Reams, Chuqi Guo, Stephania Cormier, Jennifer Richmond-Bryant

Division of Basic Science Faculty Publications

Community-based participatory research provides communities with an avenue to actively collaborate with environmental researchers. The research aims to gain insight into critical problems of concern to community members while maintaining community autonomy over the research and its outcomes. This article describes the development and implementation of an environmental health communication tool designed to meet the needs of residents of Colfax, Louisiana, a rural community with limited technological access, which is engaging in advocacy with federal and state regulatory agencies to prohibit open burning and open detonation of military and Superfund wastes at a nearby thermal treatment site. We discuss how …

A Data-Driven Approach To Enhance The Prediction Of Bacteria–Metabolite Interactions In The Human Gut Microbiome Using Enzyme Encodings And Metabolite Structural Embeddings, Gopal Srivastava, Michal Brylinski

Faculty Publications

Background: The human gut microbiome is critical for host health by facilitating essential metabolic processes. Our study presents a data-driven analysis across 312 bacterial species and 154 unique metabolites to enhance the understanding of underlying metabolic processes in gut bacteria. The focus of the study was to create a strategy to generate a theoretical (negative) set for binary classification models to predict the consumption and production of metabolites in the human gut microbiome. Results: Our models achieved median balanced accuracies of 0.74 for consumption predictions and 0.95 for production predictions, highlighting the effectiveness of this approach in generating reliable negative …

Interactive Effects Of Co2, Temperature, And Nitrate Limitation On The Growth And Physiology Of Strain Ccmp 1334 Of The Marine Cyanobacterium Synechococcus (Cyanophyceae), Alyssa K. Sharbaugh, Edward A. Laws

Faculty Publications

The marine cyanobacterium Synecococcus sp. (CCMP 1334) was grown in a continuous culture system on a 12:12 h light:dark cycle at all combinations of low and high pCO2 (400 and 1000 ppmv, respectively), nutrient availability (nitrate-limited and nutrient-replete conditions), and temperatures of 21, 24, 28, 32, and 35°C. The maximum nutrient-replete growth rate was ~1.15 day⁻¹ at 32–35°C. Median nutrient-replete growth rates were higher at 1000 ppmv than at 400 ppmv pCO2 at all temperatures. Carbon:nitrogen ratios were independent of pCO2 at a fixed relative growth rate (i.e., growth rate ÷ nutrient-replete growth rate) but decreased with increasing temperature. …

Butterfly Species Vary In Sex-Specific Sodium Accumulation From Larval Diets, Luis Y. Santiago-Rosario, Alexander M. Shephard, Emilie Snell-Rood, Achim D. Herrmann, Kyle E. Harms

Faculty Publications

Sodium is essential for animals, and its heterogeneous distribution can cause a range of phenomena, from sodium-seeking behaviours to impacting their performance. Although sodium content in soils and plants is relatively well documented, data for higher trophic levels are limited. Knowledge of the variation in sodium in lower trophic levels could have implications for understanding the behaviour and physiology of species at higher levels. We investigated the variation in tissue sodium concentration between males and females of four butterfly species. Puddling behaviour of Lepidoptera suggests sodium needs of males are generally greater than females, thus, we predicted males would accumulate …

Increased Expression Of The Small Lysosomal Gene Svip In The Drosophila Gut Suppresses Pathophysiological Features Associated With A High-Fat Diet, Brennan M. Mercola, Tatiana V. Villalobos, Jocelyn E. Wood, Ankita Basu, Alyssa E. Johnson

Faculty Publications

Lysosomes are digestive organelles that are crucial for nutrient sensing and metabolism. Lysosome impairment is linked to a broad spectrum of metabolic disorders, underscoring their importance to human health. Thus, lysosomes are an attractive target for metabolic disease therapies. In previous work, we discovered a novel class of tubular lysosomes that are morphologically and functionally distinct from traditionally described vesicular lysosomes. Tubular lysosomes are present in multiple tissues, are broadly conserved from invertebrates to mammals, are more proficient at degrading autophagic cargo than vesicular lysosomes, and delay signs of tissue aging when induced ectopically. Thus, triggering tubular lysosome formation presents …

Triarchic Traits As Risk Versus Protective Factors For Adhd Symptomatology: A Prospective Longitudinal Investigation, Elizabeth S.M. Chan, Emily R. Perkins, Bridget M. Bertoldi, Kelsey L. Lowman, Elia F. Soto, Catherine Tuvblad, Sofi Oskarsson, Laura A. Baker, Christopher J. Patrick

Department of Psychology Faculty Scholarship and Creative Works

Attention-deficit/hyperactivity disorder (ADHD) symptoms are associated with myriad adverse outcomes, including interpersonal difficulties, but factors that moderate the developmental course and functional impact of ADHD over time are not well understood. The present study evaluated developmental contributions of the triarchic neurobehavioral traits (boldness, meanness, and disinhibition) to ADHD symptomatology and its subdimensions from adolescence to young adulthood. Participants were twins and triplets assessed at ages 14, 17, and 19 (initial N = 1,185, 51.2% female). Path analyses using negative binomial regression revealed that boldness at age 14 was associated with more ADHD symptoms cross-sectionally (especially hyperactivity/impulsivity), but fewer symptoms (especially …

Exploring Adolescents' Mental Health In Kampala, Uganda In The Context Of Covid-19: A Mixed Methods Study, Gideon Mbithi, Ahmed Sarki, Adam Mabrouk, Rachel Odhiambo, Mary Namuguzi, Joseph Atukwatse, Margaret Kabue, Stephen Mulupi, Amina Abubakar

Institute for Human Development, East Africa

Background: Urban areas, particularly in developing nations like Uganda, face heightened risks due to poverty, unemployment, and environmental challenges, intensifying the vulnerability of urban youth to poor mental health. This study aims to determine the psychological well-being of adolescents and to assess the risks and associated factors of mental health problems among adolescents in the context of COVID-19 pandemic in Kampala City, Uganda.

Methods: We conducted a cross-sectional survey of 500 adolescents aged 13–19 years residing within the five divisions of Kampala City, Uganda. We utilized standardized psychological assessment tools including the Patient Health Questionnaire, Generalized Anxiety Scale, …

Unl Emeriti And Retirees Association Newsletter, February 2025

UNL Emeriti and Retirees Association: Newsletters and Other Materials

University of Nebraska-Lincoln Emeriti and Retirees Association Newsletter, February 2025

Welcome from ERA President Pam Edwards

New members

ERA Board members

Award-winning ERA members

Wake up your social well-being, Connie Boehm

Book review, The Brothers:John Foster Dulles, Allen Dulles and Their Secret World War

Funding opportunities

Glow BIG RED

A look ahead at programming

Recapping past programming

Memory moments

Special announcements

Post-Term Births As A Risk Factor For Small For Gestational Age Births And Infant Mortality In Brazil, Mexico, And Palestinian Refugees: An Analysis Of Electronic Birth Records, Zeina Jamaluddine, Lorena Suarez Idueta, Enny S. Paixao, Julia M. Pescarini, Hala Ghattas Ph.D., Miho Sato, Akihiro Seita, Luis A. Martinez-Juarez, Mauricio L. Barreto, Eric O. Ohuma, Louise T. Day, Oona M.R. Campbell, Hannah Blencowe

Faculty Publications

Background:

Post-term pregnancy, defined as reaching or exceeding 42 + 0 weeks of gestation, is known to be associated with unfavourable birth outcomes. High-income countries have responded to this risk by widely adopting labour induction protocols in late-term, but many low- and middle-income countries have not. However, understanding underlying mechanisms linking post-term births to adverse newborn and infant outcomes remains limited.

Objective:

To investigate the (a) prevalence of post-term, (b) the risk factors associated with post-term (c) the association between post-term births and the risk of small-for-gestational-age (SGA) neonates and of infant mortality in middle-income settings.

Methods:

We used existing …

Ivy Proteins As Guardians Of Bacterial Cell Wall Integrity: Regulation Of Lytic Transglycosylases Explored, Aamna Aijaz, Trinity E. Alamutu, Vy T. Dao, Nathaniel R. Davis, Michael D. Landers, Nykolas K. Mackevicius, Liliana Ortiz, Irina F. Padilla-Montoya, Kacy J. Smith, Maria L. Snyder, Anthony J. Stefanie, Blaise M. Williams, Thomas C. Leeper

The Kennesaw Journal of Undergraduate Research

Lytic transglycosylases (LTs) are bacterial enzymes involved in biosynthesis and maintenance of the peptidoglycan cell wall. LTs are reported to be regulated by two paralogs of Inhibitor of Vertebrate Lysozymes: Ivyp1 and Ivyp2. This study investigated the regulatory dynamics between the soluble LT (SltB1), and Ivy paralogs as putative regulators in Pseudomonas aeruginosa (PA). The secondary objective was to delineate the critical roles played by a glutamic acid at position 135 in SltB1 and a histidine at position 62 in Ivyp1 in governing their molecular interaction through site directed mutagenesis. Isolated SltB1 shows no lytic activity in our assay, in …