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Identification Of Fentanyl And Fentanyl Analogs Found In Human Urine Using Gas Chromatography-Mass Spectrometry, Adam M. Fisher Jan 2025

Identification Of Fentanyl And Fentanyl Analogs Found In Human Urine Using Gas Chromatography-Mass Spectrometry, Adam M. Fisher

Electronic Theses & Dissertations (2024 - present)

Identification of fentanyl and its analogs in unknown samples is a frequent practice completed in forensic crime labs, as the fentanyl epidemic continues. With the continued increase in illicit drug use, crime labs are not able to keep up with the flooding of new fentanyl analogs being developed, resulting in new analogs slipping past the crime labs’ authority. This research is to start to develop a database of commonly found fentanyl analogs in New York State. Gas Chromatography-Mass Spectrometry (GC-MS) is a widely used method for the detection and identification of illicit drugs in forensic crime labs. A database that …


Interfacing Neural Models: Biocompatibility And Fabrication Of A Flexible, Self-Folding Microelectrode Array, Fernando A. Pesantez Torres Jan 2025

Interfacing Neural Models: Biocompatibility And Fabrication Of A Flexible, Self-Folding Microelectrode Array, Fernando A. Pesantez Torres

Electronic Theses & Dissertations (2024 - present)

Neurodegenerative diseases pose a formidable challenge in modern medicine, necessitating the development of advanced research tools that can elucidate their complex pathophysiology. Recent advancements in neurodegenerative disease research have led to the development of three-dimensional (3D) neurodegenerative organoids using human induced pluripotent stem cells (hiPSCs). These organoids closely mimic human brain architecture and functionality, providing a valuable tool for understanding complex diseases. Additionally, the ability to generate and study brain organoids consistently and in large quantities holds potential for a controlled in vitro setting and high-throughput drug screening. However, these models are complex systems requiring specialized maintenance, analysis, and manipulation …


I Get It From My Momma: Exploring The Process Of Transgenerational Resiliency Among Two Generations Of Single Black Mothers, Destiny A. Bender Jan 2025

I Get It From My Momma: Exploring The Process Of Transgenerational Resiliency Among Two Generations Of Single Black Mothers, Destiny A. Bender

Electronic Theses & Dissertations (2024 - present)

Abstract

Aim: This dissertation examines how resilience is transmitted across two generations of Black women (18 to 70 years of age). It aims to enhance our knowledge of the meaning of resilience in the context of single motherhood and how beliefs, values, faith-based approaches to coping, and culturally driven approaches to mothering influence outcomes for the next generation. Knowledge gaps regarding theoretical formulations of resilience and single Black mothers are discussed. Methodology: The researcher conducted in-depth interviews with ten women (five mother-daughter dyads). A phenomenological inquiry was conducted to explore the meaning-making process of resilience for mothers; human development, ecological …


The Treatment Naïve Microbiome Of Pediatric Ulcerative Colitis And Microbial Therapeutics: A Humbling Challenge, Richard Kellermayer Jan 2025

The Treatment Naïve Microbiome Of Pediatric Ulcerative Colitis And Microbial Therapeutics: A Humbling Challenge, Richard Kellermayer

Faculty, Staff and Students Publications

No abstract provided.


Glutamatergic Lateral Habenula Neurons Modulate Consolidation Of Associative Memories, Snigdha Srivastava, I-Ching Wang, Mikhail Y Kochukov, Jessica L Swanson, Mauro Costa-Mattioli, Benjamin R Arenkiel Jan 2025

Glutamatergic Lateral Habenula Neurons Modulate Consolidation Of Associative Memories, Snigdha Srivastava, I-Ching Wang, Mikhail Y Kochukov, Jessica L Swanson, Mauro Costa-Mattioli, Benjamin R Arenkiel

Duncan NRI Faculty and Staff Publications

INTRODUCTION: Despite the rise in psychiatric disorders worldwide, the underlying brain circuits responsible for these devastating conditions remain elusive. The lateral habenula (LHb) has emerged as a key brain structure in depression studies due to its hyperactive state in both patients and animal models. While this aligns with known roles in driving aversive states and regulating serotonin release, it is still unclear how acute and transient activity changes in the LHb can influence higher order cognitive processes such as learning, memory, and behavioral adaptation. Given the importance of these processes to psychiatric conditions, understanding how LHb activity impacts cognitive function …


Investigative Genetic Genealogy Practices Warranting Policy Attention: Results Of A Modified Policy Delphi, Christi J Guerrini, Louiza Kalokairinou, Jill O Robinson, Whitney Bash Brooks, Stephanie M Fullerton, Sara Huston, Jacklyn Dahlquist, Diana Madden, Norah Crossnohere, Nicola Campoamor, John F P Bridges, Amy L Mcguire Jan 2025

Investigative Genetic Genealogy Practices Warranting Policy Attention: Results Of A Modified Policy Delphi, Christi J Guerrini, Louiza Kalokairinou, Jill O Robinson, Whitney Bash Brooks, Stephanie M Fullerton, Sara Huston, Jacklyn Dahlquist, Diana Madden, Norah Crossnohere, Nicola Campoamor, John F P Bridges, Amy L Mcguire

Center for Medical Ethics and Health Policy Staff Publications

A technique known as investigative genetic genealogy (IGG) was first introduced to criminal investigations in 2018, and it has since been used by U.S. law enforcement to help identify hundreds of criminal perpetrators and unidentified human remains. As expertise in IGG grows, policymakers have shown interest in regulating it. To help inform these efforts and to promote coherence in IGG governance as it expands, we recruited experts representing a spectrum of IGG-relevant professions and perspectives to identify and prioritize IGG practices for policy attention and to develop policy options for addressing them. In two rounds of a modified policy Delphi, …


When Families Bridge The Research-Clinical Divide: An Exploration Of Values Regarding Cascade Screening In Genomic Research, Katherine E Bonini, Lauren R Desrosiers-Battu, Ann Katherine M Foreman, Nuriye N Sahin-Hodoglugil, Mary A Majumder, Candice R Finnila, Stephanie A Kraft, Laura M Amendola, Eimear E Kenny, Stephanie M Fullerton, Sara L Ackerman, Benjamin S Wilfond, Amy L Mcguire, Hadley Stevens Smith Jan 2025

When Families Bridge The Research-Clinical Divide: An Exploration Of Values Regarding Cascade Screening In Genomic Research, Katherine E Bonini, Lauren R Desrosiers-Battu, Ann Katherine M Foreman, Nuriye N Sahin-Hodoglugil, Mary A Majumder, Candice R Finnila, Stephanie A Kraft, Laura M Amendola, Eimear E Kenny, Stephanie M Fullerton, Sara L Ackerman, Benjamin S Wilfond, Amy L Mcguire, Hadley Stevens Smith

Center for Medical Ethics and Health Policy Staff Publications

Purpose: Genetic results are important for both patients and their biological relatives. However, cascade screening (CS) uptake is low, especially when testing occurs through research programs and not clinical care. Ethical guidance is needed for CS implementation when individuals receive clinical genetic results through research.

Methods: We conducted focus groups with 3 groups of individuals in the Clinical Sequencing Evidence-Generating Research Consortium: clinicians, patient representatives, and scholars of the ethical, legal, and social implications of genomics. We used inductive thematic and comparative analyses to analyze data within and across the groups.

Results: All participants (n = 27) agreed that …


Uso Da Modelagem Baseada Em Agentes No Estudo De Sistemas Complexos, Eric Araújo Jan 2025

Uso Da Modelagem Baseada Em Agentes No Estudo De Sistemas Complexos, Eric Araújo

University Faculty Publications and Creative Works

A modelagem baseada em agentes (MBA) é uma metodologia poderosa e acessível para explorar sistemas complexos, onde interações simples entre indivíduos podem gerar comportamentos coletivos emergentes. Este artigo apresenta a MBA de maneira didática e fluida, utilizando a interface NetLogo para exemplificar como a metodologia pode ser aplicada em diversas áreas, como ecologia, saúde pública, economia e sociologia. Com uma abordagem prática, mostramos que não é necessário um conhecimento avançado em computação para começar a usar a MBA, mas que sua versatilidade permite investigar questões complexas do mundo real. Ao final, o leitor será capaz de entender os fundamentos da …


Evaluating Impacts Of The Trichloroethylene Metabolite S-(1,2-Dichlorovyinyl)-L-Cysteine On Transcriptomic Responses And Cytokine Release In A Macrophage Model: Implications For Pregnancy Outcomes, Annella Benjamin, Erica Boldenow, Sammy Jaber, Kelly M. Bakulski, John Dou, Justin Colacino, Peter Mancuso, Sean Harris Jan 2025

Evaluating Impacts Of The Trichloroethylene Metabolite S-(1,2-Dichlorovyinyl)-L-Cysteine On Transcriptomic Responses And Cytokine Release In A Macrophage Model: Implications For Pregnancy Outcomes, Annella Benjamin, Erica Boldenow, Sammy Jaber, Kelly M. Bakulski, John Dou, Justin Colacino, Peter Mancuso, Sean Harris

University Faculty Publications and Creative Works

Trichloroethylene (TCE) is a volatile synthetic chemical used in various industrial processes like metal degreasing. Large amounts of TCE have been released into the environment. Exposure to TCE can occur through routes, such as inhalation for workers using TCE or ingestion of drinking water in contaminated areas. Macrophages are key immune cells in virtually all tissues in the human body, including the fetal membranes, making them a plausible target for DCVC-induced immunotoxicity. Macrophages are critical for maintaining anti-microbial defenses during pregnancy, but little data exists on TCE immunotoxicity during pregnancy. We previously showed that the TCE metabolite, S-(1,2-dichlorovinyl)-L-cysteine (DCVC), …


Modeling Functional Connectivity With Learning And Memory In A Mouse Model Of Alzheimer’S Disease, Lindsay Fadel, Elizabeth Hipskind, Steen E Pedersen, Jonathan Romero, Caitlyn Ortiz, Eric Shin, Md Abul Hassan Samee, Robia G Pautler Jan 2025

Modeling Functional Connectivity With Learning And Memory In A Mouse Model Of Alzheimer’S Disease, Lindsay Fadel, Elizabeth Hipskind, Steen E Pedersen, Jonathan Romero, Caitlyn Ortiz, Eric Shin, Md Abul Hassan Samee, Robia G Pautler

Faculty, Staff and Students Publications

Introduction: Functional connectivity (FC) is a metric of how different brain regions interact with each other. Although there have been some studies correlating learning and memory with FC, there have not yet been, to date, studies that use machine learning (ML) to explain how FC changes can be used to explain behavior not only in healthy mice, but also in mouse models of Alzheimer's Disease (AD). Here, we investigated changes in FC and their relationship to learning and memory in a mouse model of AD across disease progression.

Methods: We assessed the APP/PS1 mouse model of AD and wild-type controls …


Providers' Perceptions On Early Alzheimer’S Screening In Patients With Metabolic Syndrome, Sharika James, Brittany Higgins, Kelli Stewart, Bernesha Mclemore, Jessica Koon Jan 2025

Providers' Perceptions On Early Alzheimer’S Screening In Patients With Metabolic Syndrome, Sharika James, Brittany Higgins, Kelli Stewart, Bernesha Mclemore, Jessica Koon

MSN Research Projects

The healthcare system currently lacks a standardized approach for screening and identifying potential links between hormonal fluctuations and Alzheimer’s in younger populations. This gap in guidelines leads to a primarily reactive rather than proactive stance, as screenings like the AD8 tool are often only considered in response to advanced symptoms or at older ages (Tolea & Galvin, 2013). The progression of early Alzheimer's disease is generally considered irreversible. This is due to the neurodegenerative nature of the condition, where damage to brain cells, particularly in areas related to memory and cognition, is progressive and cannot be undone. According to the …


Liberatory Motherhood: A Framework & Praxis For Caring And Scholaring Otherwise In The Neoliberal Academy, Bhavika Sicka Jan 2025

Liberatory Motherhood: A Framework & Praxis For Caring And Scholaring Otherwise In The Neoliberal Academy, Bhavika Sicka

Educational Leadership & Workforce Development Faculty Publications

This article contributes to the emergent literature on motherhood in neoliberal higher education by proposing liberatory motherhood as a theoretical framework and praxis to deconstruct and reconstruct motherhood in the neoliberal academy. The author, an early-career immigrant woman scholar of color, uses feminist autoethnography to critically examine the disempowering, disembodying, and departicularizing effects of neoliberal subjectivation on motheracademics, foregrounding her lived experiences of caregiving in her analysis. She approaches academic motherhood through a prismatic lens of a pluralistic feminist rhetorical analysis that emphasizes interrelationality, tracing her experiences of caring and producing otherwise as a way to signal opportunities to reembody …


Assessing Arbuscular Mycorrhizal Fungal Community Composition And Diversity Across A Land-Use Gradient In Eastern Washington Prairies, Katherine I. Cole Jan 2025

Assessing Arbuscular Mycorrhizal Fungal Community Composition And Diversity Across A Land-Use Gradient In Eastern Washington Prairies, Katherine I. Cole

EWU Masters Thesis Collection

Arbuscular mycorrhizal fungi (AMF) are key to healthy, functioning terrestrial ecosystems worldwide. Associating with over 80% of all extant land plants, they play a pivotal role in nutrient cycling, and contribute to overall plant health. Given their significance to terrestrial ecosystems, AMF have a crucial role to play in the successful restoration of Eastern Washington’s native prairies. However, AMF community composition is significantly altered by the commercial agricultural practices used extensively in this region for over 100 years. The Eastern Washington University (EWU) Prairie Restoration Project aims to restore ~120 acres of farmland to native prairie. This research provides insight …


Identifying Notch-Regulated Genes Using A Specific Notch Signaling Inhibitor, Hammed Gafar Jan 2025

Identifying Notch-Regulated Genes Using A Specific Notch Signaling Inhibitor, Hammed Gafar

EWU Masters Thesis Collection

Bone remodeling is a dynamic process that requires a balance between bone resorption by osteoclasts and bone formation by osteoblasts to maintain skeletal integrity. Disruptions to this equilibrium can lead to pathological conditions such as osteoporosis. Osteoclasts originate from macrophages, and their differentiation is regulated by several signaling pathways, notably the notch signaling pathway. Gamma-secretase, an enzyme crucial for initiating notch signaling, can be inhibited by DAPT. However, DAPT also targets non-Notch substrates, complicating the identification of genes specifically regulated by Notch. To address this limitation, this study employed IMR-1A, a selective Notch pathway inhibitor that disrupts the assembly of …


Bridging Prairie Restoration And Regenerative Agriculture With Compost Tea / The Rocket Incident: Post-Fire Soil Microbe Recovery On The Eastern Washington University Restoration Site, April Hersey Jan 2025

Bridging Prairie Restoration And Regenerative Agriculture With Compost Tea / The Rocket Incident: Post-Fire Soil Microbe Recovery On The Eastern Washington University Restoration Site, April Hersey

EWU Masters Thesis Collection

Inland Pacific Northwest prairie is an endangered ecosystem that has been reduced by conversion to agriculture. There is growing interest in the role of soil microorganisms in prairie ecosystems, which may be crucial for restoration of the plant community through interspecies interactions within the rhizosphere. One method for improving soil microorganism community composition is compost tea: enriched liquid compost extract. Compost tea is used in regenerative agriculture to improve crop yields and protect against pathogens. While research has supported compost tea application in regenerative agriculture, it has not been widely studied in the context of ecosystem restoration. After beginning a …


Self-Efficacy And Stem Education: A Study Of Family And Consumer Science Teachers In Pennsylvania, Charlene Smith, Philip A. Reed Jan 2025

Self-Efficacy And Stem Education: A Study Of Family And Consumer Science Teachers In Pennsylvania, Charlene Smith, Philip A. Reed

Educational Leadership & Workforce Development Faculty Publications

Science, technology, engineering, and mathematics (STEM) education has become widely promoted. Family and Consumer Sciences (FCS) uses science to improve home life while reinforcing technology, engineering, and mathematics principles. However, FCS is not usually recognized as a STEM subject. The purpose of this study was to determine what factors may affect FCS teachers’ level of self-efficacy in teaching STEM to provide supports that improve teaching practices. This quantitative study surveyed secondary FCS teachers in Pennsylvania using the T‐STEM Survey for Elementary Teachers. Results were analyzed using descriptive statistics and simple linear regression analysis was performed to determine the predictive …


Osteoclastogenic Potential Of Cd68-Expressing Osteoclast Precursor Cells, Colton Quinn Jan 2025

Osteoclastogenic Potential Of Cd68-Expressing Osteoclast Precursor Cells, Colton Quinn

EWU Masters Thesis Collection

Bone remodeling is a dynamic process maintained by the balance between osteoblast-mediated bone formation and osteoclast-driven resorption. When this balance is disrupted, pathological bone loss occurs, as seen in osteoporosis, rheumatoid arthritis, and cancer-induced bone disease (Teitelbaum, 2007; Korol & Baumeister, 2023; Ensrud & Crandall, 2017). Osteoclasts, derived from hematopoietic stem cells through a macrophage lineage, play a central role in bone resorption. However, the identity of all proteins of osteoclast precursors remains unclear. CD68, a lysosomal glycoprotein widely expressed in macrophages and monocyte-lineage cells (Holness & Simmons, 1993), has been proposed as a marker of osteoclast precursors. Some studies …


Multi-Objective Bike Routing Problem: A Survey And Comparative Evaluation, Dominic Peter Macisaac Jan 2025

Multi-Objective Bike Routing Problem: A Survey And Comparative Evaluation, Dominic Peter Macisaac

EWU Masters Thesis Collection

Multi-objective routing has been studied for over forty years, yet its application to the bike routing problem is a relatively recent development. The Multi-Objective Bike Routing Problem (MOBRP) seeks to optimize a set of bike routes from a single source to a single destination, given multiple cost criteria. This paper makes two primary contributions. First, it consolidates existing research on the MOBRP, including the criteria chosen and associated cost functions, the search algorithms used, and the testing setups and metrics used for evaluation. Second, it implements the most promising search algorithms and evaluates these approaches through comprehensive cross-testing, a topic …


Cannabinoid-2 Receptor Activation Attenuates Sulfur Mustard Analog 2-Chloroethyl-Ethyl-Sulfide-Induced Acute Lung Injury In Mice, Gregory Nicholson, Nicholas Richards, Janette Lockett, My Boi Ly, Raj V. Nair, Woong-Ki Kim, K. Yaragudri Vinod, Nagaraja Nagre Jan 2025

Cannabinoid-2 Receptor Activation Attenuates Sulfur Mustard Analog 2-Chloroethyl-Ethyl-Sulfide-Induced Acute Lung Injury In Mice, Gregory Nicholson, Nicholas Richards, Janette Lockett, My Boi Ly, Raj V. Nair, Woong-Ki Kim, K. Yaragudri Vinod, Nagaraja Nagre

Department of Biomedical and Translational Sciences Faculty Publications

Background: Exposure to sulfur mustard (SM; 2,2′-dichlorodiethyl sulfide) causes toxicity in the human body, particularly the lungs. The molecular mechanisms of SM-induced lung damage are elusive, and no effective treatments exist. This study explores the anti-inflammatory potential of cannabinoid receptor 2 (CB2R) activation in mitigating acute lung injury (ALI) and inflammation induced by 2-chloroethyl ethyl sulfide (CEES), a structural analog of SM. Methods: C57BL/6J mice were exposed to CEES via intratracheal administration to model ALI. CB2R activation was achieved through the intraperitoneal administration of HU308, a selective synthetic agonist. ALI and inflammation were evaluated at 48 h post-exposure to CEES. …


Interaction Of Cardiac Leiomodin With The Native Cardiac Thin Filament, Madison Little, Cristina M. Risi, Tania M. Larrinaga, Mason D. Summers, Tyler Nguyen, Garry E. Smith Jr., Jennifer Atherton, Carol C. Gregorio, Alla S. Kostyukova, Vitold E. Galkin Jan 2025

Interaction Of Cardiac Leiomodin With The Native Cardiac Thin Filament, Madison Little, Cristina M. Risi, Tania M. Larrinaga, Mason D. Summers, Tyler Nguyen, Garry E. Smith Jr., Jennifer Atherton, Carol C. Gregorio, Alla S. Kostyukova, Vitold E. Galkin

Department of Biomedical and Translational Sciences Faculty Publications

Every heartbeat depends on cyclical contraction-relaxation produced by the interactions between myosin-containing thick and actin-based thin filaments (TFs) arranged into a crystalline-like lattice in the cardiac sarcomere. Therefore, the maintenance of thin filament length is crucial for myocardium function. The thin filament is comprised of an actin backbone, the regulatory troponin complex and tropomyosin that controls interactions between thick and thin filaments. Thin filament length is controlled by the tropomodulin family of proteins; tropomodulin caps pointed ends of thin filaments, and leiomodin (Lmod) promotes elongation of thin filaments by a “leaky-cap” mechanism. The broader distribution of Lmod on the thin …


The Central Role For Troponin C Amino-Terminal ⍺-Helix In Vertebrate Thin Filiment Ca²⁺-Activation, Yun Shi, Lauren A. Blackwell, Ryan K. Schroy, B. Max Cleland, Cristina M. Risi, Michelle S. Parvatiyar, Jose R. Pinto, Vitold E. Galkin, P. Bryant Chase Jan 2025

The Central Role For Troponin C Amino-Terminal ⍺-Helix In Vertebrate Thin Filiment Ca²⁺-Activation, Yun Shi, Lauren A. Blackwell, Ryan K. Schroy, B. Max Cleland, Cristina M. Risi, Michelle S. Parvatiyar, Jose R. Pinto, Vitold E. Galkin, P. Bryant Chase

Department of Biomedical and Translational Sciences Faculty Publications

Troponin C (TnC) is the Ca²⁺-sensing subunit of troponin that is responsible for activating thin filaments in striated muscle, and, in turn, for regulating the systolic and diastolic contractile function of cardiac muscle. The secondary structure of vertebrate TnC is mainly composed of α-helices, with nine helices named sequentially, starting from the amino terminus, from N to A–H. The N-helix is a 12-residue-long α-helix located at the extreme amino terminus of the protein and is the only helical structure that does not participate in forming Ca²⁺-binding EF-hands. Evolutionarily, the N-helix is found only in TnC from mammalian species and most …


Protein Marker-Dependent Drug Discovery Targeting Breast Cancer Stem Cells, Ashley V. Huang, Yali Kong, Kan Wang, Milton L. Brown, David Mu Jan 2025

Protein Marker-Dependent Drug Discovery Targeting Breast Cancer Stem Cells, Ashley V. Huang, Yali Kong, Kan Wang, Milton L. Brown, David Mu

Department of Biomedical and Translational Sciences Faculty Publications

Breast cancer is one of the most common cancers globally. Unfortunately, many patients with breast cancer develop resistance to chemotherapy and tumor recurrence, which is primarily driven by breast cancer stem cells (BCSCs). BCSCs behave like stem cells and can self-renew and differentiate into mature tumor cells, enabling the cancer to regrow and metastasize. Key markers like CD44 and aldehyde dehydrogenase-1 (ALDH1), along with pathways like Wingless-related integration site (Wnt), Notch, and Hedgehog, are critical to regulating this stem-like behavior of BCSCs and, thus, are being investigated as targets for various new therapies. This review summarizes marker-dependent strategies for targeting …


Codon Composition In Human Oocyters Reveals Age-Associated Defects In Mrna Decay, Pavla Brachova, Lane K. Christenson, Nehemiah S. Alvarez Jan 2025

Codon Composition In Human Oocyters Reveals Age-Associated Defects In Mrna Decay, Pavla Brachova, Lane K. Christenson, Nehemiah S. Alvarez

Department of Biomedical and Translational Sciences Faculty Publications

Oocytes from women of advanced reproductive age exhibit diminished developmental potential, but the underlying mechanisms remain incompletely defined. Oocyte maturation depends on translational control of maternal mRNA synthesized during growth. We performed a computational analysis on human oocytes from women < 30 versus ≥40 years and observed that mRNA GC content correlates negatively with half-life in oocytes from young (< 30 yr) but positively with oocytes from aged (>40 yr) women. In young oocytes, longer mRNA half-life is associated with lower protein abundance, whereas in aged oocytes GC content correlates positively with protein abundance. During the GV-to-MII transition, codon composition stratifies stability: codons that support rapid translation (optimal) stabilize mRNA, while slow-translating codons (non-optimal) promote decay. With reproductive aging, GC-containing codons become more optimal and align with increased …


Antibiotic Resistance: The Growing Threats And Potential Solutions, Olisaemeka Zikora Akunne, Blessing Nkechi Emmanuel, Umar Faruk Saidu, Ayobami Sunday Akinnawo, Nasiru Ademola Adeyemi, Livia Chinaza Egoh, Malami Aishatu Muhammad, Olusegun Ayo Ade-Adekunle, Deborah Ahuoyiza Peter, Anne Amina Freitas Jan 2025

Antibiotic Resistance: The Growing Threats And Potential Solutions, Olisaemeka Zikora Akunne, Blessing Nkechi Emmanuel, Umar Faruk Saidu, Ayobami Sunday Akinnawo, Nasiru Ademola Adeyemi, Livia Chinaza Egoh, Malami Aishatu Muhammad, Olusegun Ayo Ade-Adekunle, Deborah Ahuoyiza Peter, Anne Amina Freitas

Department of Biomedical and Translational Sciences Faculty Publications

Antibiotic resistance (AR) has become a critical global health crisis, threatening the efficacy of antibiotics and increasing healthcare costs, morbidity, and mortality. The One Health approach, which emphasizes the interconnectedness of human, animal, and environmental health, is increasingly recognized as an essential framework for addressing the complex drivers of AR. This review explores the mechanisms of resistance, such as genetic mutations, horizontal gene transfer, and biofilm formation, along with contributing factors such as the overuse of antibiotics in healthcare and agriculture. We assess both traditional and emerging strategies to combat AR, including antimicrobial stewardship, the development of new antibiotics, and …


Swinging Lever Mechanism Of Myosin Directly Shown By Time-Resolved Cryo-Em, David P. Klebl, Sean N. Mcmillan, Cristina Risi, Eva Forgacs, Betty Virok, Jennifer L. Atherton, Sarah A. Harris, Michele Stofella, Donald A. Winkelmann, Frank Sobott, Vitold E. Galkin, Peter J. Knight, Stephen P. Muench, Charlotte A. Scarfi, Howard D. White Jan 2025

Swinging Lever Mechanism Of Myosin Directly Shown By Time-Resolved Cryo-Em, David P. Klebl, Sean N. Mcmillan, Cristina Risi, Eva Forgacs, Betty Virok, Jennifer L. Atherton, Sarah A. Harris, Michele Stofella, Donald A. Winkelmann, Frank Sobott, Vitold E. Galkin, Peter J. Knight, Stephen P. Muench, Charlotte A. Scarfi, Howard D. White

Department of Biomedical and Translational Sciences Faculty Publications

Myosins produce force and movement in cells through interactions with F-actin1. Generation of movement is thought to arise through actin-catalysed conversion of myosin from an ATP-generated primed (pre-powerstroke) state to a post-powerstroke state, accompanied by myosin lever swing2,3. However, the initial, primed actomyosin state has never been observed, and the mechanism by which actin catalyses myosin ATPase activity is unclear. Here, to address these issues, we performed time-resolved cryogenic electron microscopy (cryo-EM)4 of a myosin-5 mutant having slow hydrolysis product release5,6. Primed actomyosin was predominantly captured 10 ms after …


Phenotype Specific Nuclear Lamina Remodeling In Hipsc Derived Cardiomyocytes Bearing Tnnt2 Sarcomeric Variants, Isabella Leite Coscarella, Olalekan H. Usman, Lili Wang, Maicon Landim-Vieira, Lillian Wirstiuk, Amber N. Brown, Diego A. R. Zorio, Brian K. Washburn, Cynthia Vied, Bjorn C. Knollmann, Christopher Solís, Vitold E. Galkin, P. Bryant Chase, J. Travis Hinson, Jerome Irianto, Jose Renato Pinto Jan 2025

Phenotype Specific Nuclear Lamina Remodeling In Hipsc Derived Cardiomyocytes Bearing Tnnt2 Sarcomeric Variants, Isabella Leite Coscarella, Olalekan H. Usman, Lili Wang, Maicon Landim-Vieira, Lillian Wirstiuk, Amber N. Brown, Diego A. R. Zorio, Brian K. Washburn, Cynthia Vied, Bjorn C. Knollmann, Christopher Solís, Vitold E. Galkin, P. Bryant Chase, J. Travis Hinson, Jerome Irianto, Jose Renato Pinto

Department of Biomedical and Translational Sciences Faculty Publications

[Summary] Cardiomyocytes endure physical stress from the myocardium environment while generating their own mechanical strains. The force generated by sarcomeres is transmitted both longitudinally to adjacent sarcomeres and laterally to the cytoskeleton via intermediate filaments. This mechanical stimulus impacts other organelles, including the nucleus, thus playing a vital role in sensing and signaling nuclear adaptations. However, there is limited understanding of how changes in cardiac contractility affect nuclear mechanics. Here, we sought to investigate the effects of hyper- and hypo-contractility in nuclei of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) bearing TNNT2 pathogenic variants associated with hypertrophic (HCM) or dilated …


Quiet Resistance: Drawing On Covert Advocacy Research To Understand School Leadership Within The Current Anti-Trans Context, Alexandria Gribble, Erica Simpson, Meagan S. Richard Jan 2025

Quiet Resistance: Drawing On Covert Advocacy Research To Understand School Leadership Within The Current Anti-Trans Context, Alexandria Gribble, Erica Simpson, Meagan S. Richard

Educational Leadership & Workforce Development Faculty Publications

Over the last few years, there has been a surge in anti-LGBTQIA+ and, specifically, anti-transgender, nonbinary, and gender non-conforming legislation. These laws target the rights of LGBTQIA+ students in K–12 schools, leading to policies censoring gender-inclusive curricula, mandating the outing of students, and restricting transgender students’ access to sports and facilities. The rapid emergence of these bills has outpaced research on how leaders—particularly justice-centred leaders—navigate these hostile policy contexts. Existing research taking a broader lens around leaders’ justice work in schools sheds light on how leaders engage in covert advocacy within complex and constraining contexts. However, understanding how leaders resist …


Scrupulosity: A Comprehensive Review Of The Research, Julie M. Painley Jan 2025

Scrupulosity: A Comprehensive Review Of The Research, Julie M. Painley

Antioch University Dissertations & Theses

This dissertation presents a comprehensive analysis of the current research on scrupulosity, a subtype of obsessive–compulsive disorder (OCD) characterized by intrusive thoughts and compulsive behaviors related to religious and moral concerns. The dissertation identifies key similarities and differences from OCD, and directs focus to thematically related yet unsubstantiated theoretical work in psychology that helps elucidate the core features and etiological factors of scrupulosity as differentiated from other OCD subtypes. The study addresses the critical dearth of research on scrupulosity, aiming to fill significant gaps in the literature regarding its historical context, varied presentation and prevalence in different cultural contexts, and …


Unmasking The Nexus Of Race, Ethnicity, And Health: An Intersectional Analysis Of The Epistemology Of Race In Medicine, Medical Curricula, And Health Disparities, Antoinette Leonard-Jean Charles Jan 2025

Unmasking The Nexus Of Race, Ethnicity, And Health: An Intersectional Analysis Of The Epistemology Of Race In Medicine, Medical Curricula, And Health Disparities, Antoinette Leonard-Jean Charles

Antioch University Dissertations & Theses

The persistent health disparities faced by Black, Indigenous, and People of Color (BIPOC) in the United States are deeply rooted in systemic racism embedded within medical education and clinical practice. Historical acceptance of racial supremacy in the United States has shaped both the foundations and continued practices of medical education, leading to entrenched biases that affect healthcare delivery and patient outcomes. This dissertation critically examines the intersection of race, education, and health by analyzing how historical and contemporary understandings of race and ethnicity shape medical curricula, healthcare practices, and patient care. Through the integration of Critical Race Theory (CRT), Social …


Shaping Leadership: An Autoethnographic Exploration Of Inspirational Moments, Sabine Mathilde Maiberger Jan 2025

Shaping Leadership: An Autoethnographic Exploration Of Inspirational Moments, Sabine Mathilde Maiberger

Antioch University Dissertations & Theses

Leadership is a complex construct shaped by the interplay of theoretical knowledge and meaningful personal experiences that define us as people. This autoethnographic exploration investigates the question: How have inspirational moments shaped the leader I am today? Understanding how personal experiences influence leaders’ development is critical to leadership studies. To address this, nine of my pivotal life moments were selected and validated through personal artifacts, such as journals and letters, ensuring analytical depth. These moments were analyzed through servant, justice-oriented, and transformational leadership theoretical lenses. The findings revealed eight key lessons: embracing vulnerability, reflective practice, trust-based leadership, advocacy, curiosity, adaptability, …