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Dectin-1 Multimerization And Signaling Depends On Fungal Β-Glucan Structure And Exposure, Eduardo U. Anaya, Akram Etemadi Amin, Michael J. Wester, Michael E. Danielson, Kyle S. Michel, Aaron K. Neumann

Pathology Research and Scholarship

Dectin-1A is a C-type lectin innate immunoreceptor that recognizes β-(1,3;1,6)-glucan, a structural component of Candida species cell walls. β-Glucans can adopt solution structures ranging from random coil to insoluble fiber due to tertiary (helical) and quaternary structure. Fungal β-glucans of medium and high molecular weight are highly structured, but low molecular weight glucan is much less structured. Despite similar affinity for Dectin-1, the ability of glucans to induce Dectin-1A-mediated signaling correlates with degree of structure. Glucan denaturation experiments showed that glucan structure determines agonistic potential, but not receptor binding affinity. We explored the impact of glucan structure on molecular aggregation …

Impact Of Low-Level Prenatal Alcohol Exposure And Maternal Stress On Autonomic Regulation, Jessie R. Maxwell, Jared Didomenico, Melissa H. Roberts, Lidia Enriquez Marquez, Rajani Rai, Joanne Weinberg, Sandra W. Jacobson, Julia Stephen, Ludmila N. Bakhireva

Pediatrics Research and Scholarship

BACKGROUND: Prenatal alcohol exposure (PAE) impacts the neurodevelopment of the fetus, including the infant's ability to self-regulate. Heart rate variability (HRV), that is, the beat-to-beat variability in heart rate, is a non-invasive measurement that can indicate autonomic nervous system (ANS) function/dysfunction.

METHODS: The study consisted of a subset of our ENRICH-2 cohort: 80 participants (32 PAE and 48 Controls) who had completed three visits during pregnancy. The participants completed a comprehensive assessment of PAE and other substances throughout pregnancy and assessments for stress, anxiety, and depression in the third trimester. At 24 h of age, infant HRV was assessed in …

Artificial Intelligence And Digital Pathology: Clinical Promise And Deployment Considerations, Mark D. Zarella, David S. Mcclintock, Harsh Batra, Rama R. Gullapalli, Michael Valante, Vivian O. Tan, Shubham Dayal, Kei Shing Oh, Haydee Lara, Chris A. Garcia, Esther Abels

Pathology Research and Scholarship

Artificial intelligence (AI) presents an opportunity in anatomic pathology to provide quantitative objective support to a traditionally subjective discipline, thereby enhancing clinical workflows and enriching diagnostic capabilities. AI requires access to digitized pathology materials, which, at present, are most commonly generated from the glass slide using whole-slide imaging. Models are developed collaboratively or sourced externally, and best practices suggest validation with internal datasets most closely resembling the data expected in practice. Although an array of AI models that provide operational support for pathology practices or improve diagnostic quality and capabilities has been described, most of them can be categorized into …

Transfusion Reactions Associated With Covid-19 Convalescent Plasma In Outpatient Clinical Trials, Moises A. Huaman, Jay S. Raval, James H. Paxton, Giselle S. Mosnaim, Bela Patel, Shweta Anjan, Barry R. Meisenberg, Adam C. Levine, Christi E. Marshall, Anusha Yarava, Aarthi G. Shenoy, Sonya L. Heath, Judith S. Currier, Yuriko Fukuta, Janis E. Blair, Emily S. Spivak, Joann R. Petrini, Patrick B Broderick, William Rausch, Marieelena Cordisco, Jean Hammel, Benjamin Greenblatt, Valerie C Cluzet, Daniel Cruser, Kevin Oei, Matthew Abinante, Laura L. Hammitt, Catherine G. Sutcliffe, Donald N. Forthal, Martin S Zand, Edward R. Cachay, Seble G. Kassaye, Malathi Ram, Ying Wang, Piyali Das, Karen Lane, Nichol A Mcbee, Amy L Gawad, Nicky Karlen, Daniel E Ford, Oliver Laeyendecker, Andrew Pekosz, Sabra L. Klein, Stephan Ehrhardt, Bryan Lau, Sheriza N. Baksh, David M. Shade, Arturo Casadevall, Daniel F. Hanley, Jiangda Ou, Thomas J. Gniadek, Alyssa Ziman, Shmuel Shoham, Kelly A. Gebo, Evan M. Bloch, Aaron A R Tobian, David J. Sullivan, Jonathan M. Gerber

Pathology Research and Scholarship

BACKGROUND: COVID-19 convalescent plasma (CCP) is an important therapeutic option for outpatients at high risk of hospitalization from SARS-CoV-2 infection. We assessed the safety of outpatient CCP transfusions administered during clinical trials.

STUDY DESIGN AND METHODS: We analyzed data pertaining to transfusion-related reactions from two randomized controlled trials in the U.S. that evaluated the efficacy of CCP versus control plasma in various ambulatory settings. Multivariable logistic regression was used to assess whether CCP was associated with transfusion reactions, after adjusting for potential confounders.

RESULTS: The combined study reported 79/1351 (5.9%) adverse events during the transfusion visit, with the majority 62/1351 …

Syntheses And Characterization Of Photoactive Ruthenium And Iron Polypyridyl Complexes, Rajani Thapa Magar

Chemistry and Chemical Biology ETDs

Within this dissertation, two distinct classes of metal complexes have been discussed that bear significance in the field of solar energy conversion, photo redox catalysis and memory devices. The first class of the metal complexes is a series of photochromic Ruthenium polypyridyl N-heterocyclic carbene tethered sulfoxide complexes that are reported to undergo unusually slow isomerization from S-bonded to O-bonded and unusually fast thermal reversion from O-bonded to S-bonded configuration. The role of NHC in the excited state dynamics of these complexes have been discussed in detail in Chapter 3.

For the first time in two decades, structural information of the …

Volume 15, Issue 1

Medical Muse

No abstract provided.

Volume 9, Issue 2

Medical Muse

No abstract provided.

Volume 8, Issue 1

Medical Muse

No abstract provided.

Biomass Smoke Inhalation Promotes Neuroinflammatory And Metabolomic Temporal Changes In The Hippocampus Of Female Mice, David Scieszka, Yan Jin, Shahani Noor, Ed Barr, Marcus Garcia, Jessica Begay, Guy Herbert, Russell P. Hunter, Kiran Bhaskar, Rahul Kumar, Rama Gullapalli, Alicia Bolt, Mark A. Mccormick, Barry Bleske, Haiwei Gu, Matthew J. Campen

Pathology Research and Scholarship

Smoke from wildland fires has been shown to produce neuroinflammation in preclinical models, characterized by neural infiltrations of neutrophils and monocytes, as well as altered neurovascular endothelial phenotypes. To address the longevity of such outcomes, the present study examined the temporal dynamics of neuroinflammation and metabolomics after inhalation exposures from biomass-derived smoke. 2-month-old female C57BL/6 J mice were exposed to wood smoke every other day for 2 weeks at an average exposure concentration of 0.5 mg/m

Single-Valued Pentapartitioned Neutrosophic Weighted Hyperbolic Tangent Similarity Measure To Determine The Most Significant Environmental Risks During The Covid-19 Pandemic, Priyanka Majumder, Arnab Paul, Surapati Pramanik

Neutrosophic Sets and Systems

No abstract provided.

Solution And Analysis Of System Of Differential Equation With Initial Condition As ����������������������, M. Shanmugapriya, R. Sundareswaran, S Said Broumi

Neutrosophic Sets and Systems

No abstract provided.

Augmented Latin Square Designs For Imprecise Data, Abdulrahman Alaita, Hooshang Talebi

Neutrosophic Sets and Systems

No abstract provided.

Cross-Cultural Applicability Of Eye-Tracking In Assessing Attention To Emotional Faces In Preschool-Aged Children, Sara S Nozadi, Andrea Aguiar, Ruofei Du, Elizabeth A Enright, Susan L Schantz, Curtis Miller, Brandon Rennie, Mallery Quetawki, Debra Mackenzie, Johnnye L Lewis

Pediatrics Research and Scholarship

Humans show an attention bias toward emotional versus neutral information, which is considered an adaptive pattern of information processing. Deviations from this pattern have been observed in children with socially withdrawn behaviors, with most research being conducted in controlled settings among children from urban areas. The goal of the current study was to examine the cross-cultural applicability of two eye-tracking-based measures in assessing attention biases and their relations to children's symptoms of socially withdrawn behaviors in two independent and diverse samples of preschool children. The cross-cultural comparison was conducted between the Navajo Birth Cohort study (NBCS), an indigenous cohort with …

2022 American College Of Rheumatology Guideline For Exercise, Rehabilitation, Diet, And Additional Integrative Interventions For Rheumatoid Arthritis, Bryant R England, Benjamin J Smith, Nancy A Baker, Jennifer L Barton, Carol A Oatis, Gordon Guyatt, Allen Anandarajah, Kristine Carandang, Karmela Kim Chan, Deb Constien, Eileen Davidson, Carole V Dodge, Anita Bemis-Dougherty, Sotiria Everett, Nadine Fisher, Liana Fraenkel, Susan M Goodman, Janet Lewis, Victoria Menzies, Larry W Moreland, Iris Navarro-Millan, Sarah Patterson, Lawrence Rick Phillips, Neha Shah, Namrata Singh, Daniel White, Rawan Alheresh, Kamil E Barbour, Thomas Bye, Dana Guglielmo, Rebecca Haberman, Tate Johnson, Anatole Kleiner, Chris Y Lane, Linda C Li, Hiral Master, Daniel Pinto, Janet L Poole, Kimberly Steinbarger, Daniel Sztubinski, Louise Thoma, Vlad Tsaltskan, Marat Turgunbaev, Courtney Wells, Amy S Turner, Jonathan R Treadwell

Pediatrics Research and Scholarship

OBJECTIVE: To develop initial American College of Rheumatology (ACR) guidelines on the use of exercise, rehabilitation, diet, and additional interventions in conjunction with disease-modifying antirheumatic drugs (DMARDs) as part of an integrative management approach for people with rheumatoid arthritis (RA).

METHODS: An interprofessional guideline development group constructed clinically relevant Population, Intervention, Comparator, and Outcome (PICO) questions. A literature review team then completed a systematic literature review and applied the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to rate the certainty of evidence. An interprofessional Voting Panel (n = 20 participants) that included 3 individuals with RA achieved consensus …

Immigrational Trauma: An Assessment Of Dental Phobia And Access To Care In Undocumented Individuals, Nora J. Vences Ortiz

Dental Hygiene ETDs

The purpose of this study is to assess immigrational trauma as it relates to dental phobia in accessing care from undocumented individuals. Immigrating from a country to the United States presents with unique challenges. These challenges include language barriers, traumatic experiences and cultural factors. These individuals also have perceived notions regarding their treatment with a physician or dentist as their immigration status may or may not be revealed during their care. If reported, they face deportation to their country of origin placing them in the danger they originally fled from. Survey data was collected using REDCap and distributed to students …

Paradigms And Logical Morphology In Wittgenstein’S Philosophy, Idris Robinson

Philosophy ETDs

This dissertation investigates the notion of a paradigm and its related morphological method through the lens of the philosophy of Ludwig Wittgenstein (1889–1951). At once exegetical and philosophical, it is a project that aims to trace the progression of Wittgenstein’s thought, from his early to his mature phase, in order to arrive at a twofold conclusion regarding the ontological status of paradigms and a closely related approach to logic grounded in morphology.

The Effect Of Cognitive Reserve On A Rhythm And Timing Intervention In Older American Indians, Eunice Dahyeh Kim

Psychology ETDs

Cognitive reserve refers to the cerebral plasticity perspective in which premorbid buffer factors, explained as enriching life experiences, protect against the negative outcomes of neurodegenerative and neuropsychiatric diseases (Stern, 2009; Harrison et al., 2015). Little research has been done to understand cognitive reserve in older AI adults, despite the fact that American Indians (AIs) experience a higher incidence of cerebrovascular disease than other racial and ethnic groups in the US, which increases risk for cognitive deficits and dementia (Zhang, et al., 2007; Ayala, Greenlund, Croft, et al., 2001; Harwell, et al., 2005). Interactive Metronome (IM) therapy is a behavioral therapy …

Identifying Psychosocial And Neural Correlates Associated With Future Homicide In A Sample Of Incarcerated Boys, Samantha N. Rodriguez

Psychology ETDs

Previous research has observed significant group differences regarding neuroanatomical and psychosocial variables between incarcerated boys who have and have not previously committed a homicide, resulting in successful postdictive classification (Cope et al., 2014). However, no study to date has investigated whether similar group differences characterize future homicide offenders. Following the methodology of Cope et al. (2014), the current study aimed to identify baseline neural, clinical, and environmental deficits (collected in a sample of n = 242 incarcerated juvenile offenders) associated with future homicidal behavior as adults. Results indicated that youth who went on to commit homicide as adults were characterized …

An Examination Of The Associations Between Covid-19 Vaccine Hesitancy, Trust In Media, And Trust In Science And Scientists, Jegason Phosphorus Diviant

Psychology ETDs

Recent evidence suggests corroded trust in scientific institutions, but particularly among political conservatives. The current investigation examined the potential role of trust in conservative media sources by capturing associations between trust in politically-biased media sources, trust in science and scientists, and COVID-19 vaccine hesitancy. A total of 1,117 participants completed an online cross-sectional self-report study. Results revealed that: (1) the less trust respondents had in science and scientists, the greater their overall COVID-19 vaccine hesitancy (and perceived risks and fears of COVID-19 vaccines); and (2) the more respondents trusted conservative-leaning news media sources, the greater their overall COVID-19 vaccine hesitancy …

Electromagnetic Simulations Of The Lansce Chopper Structure, Yusuf Sahin

Electrical and Computer Engineering ETDs

Particle accelerators are important for basic research as well as in applications such as ion implantation and cancer therapy. One important accelerator is the Los Alamos Neutron Science Center (LANSCE) located at Los Alamos National Laboratory (LANL) that primarily produces neutrons for research. The beam chopper simulation described here is a study to provide better modeling of this subsystem of LANSCE. A chopper is a device in which particles are intermittently sliced and directed to a target and/or experiment. The simulations in this thesis are used to analyze the correct operating parameters of the chopper. A good chopper model can …

Myeloid Fth1 Deficiency Protects Mice From Colitis And Colitis-Associated Colorectal Cancer Via Reducing Dmt1-Imported Iron And Stat3 Activation, Zhaoli Liu, Mariella Arcos, David R. Martin, Xiang Xue

Pathology Research and Scholarship

BACKGROUND: Myeloid cells are critical for iron and immune homeostasis. Ferritin heavy chain (FTH1) is essential for intracellular iron storage. Myeloid FTH1 is important in the pathogenesis of many inflammatory diseases. However, the role of myeloid FTH1 in colitis and colitis-associated cancer has not been determined.

METHODS: Myeloid FTH1 deficient and wild-type mice were treated with dextran sodium sulfate (DSS) or azoxymethane (AOM)-DSS to compare their susceptibility to acute colitis or colitis-associated cancer.

RESULTS: Myeloid FTH1-deficient mice fed with a high-iron diet were less susceptible to DSS-induced acute colitis than wild type mice. Mechanistic studies showed that myeloid FTH1 deficiency …

The Antiviral Effects Of A Mek1/2 Inhibitor Promote Tumor Regression In A Preclinical Model Of Human Papillomavirus Infection-Induced Tumorigenesis, Adrian J. Luna, Jesse M. Young, Rosa T. Sterk, Virginie Bondu, Fred A. Schultz, Donna F. Kusewitt, Huining Kang, Michelle A. Ozbun

Pathology Research and Scholarship

Human papillomaviruses (HPVs) are a significant public health concern due to their widespread transmission, morbidity, and oncogenic potential. Despite efficacious vaccines, millions of unvaccinated individuals and those with existing infections will develop HPV-related diseases for the next two decades and beyond. The continuing burden of HPV-related diseases is exacerbated by the lack of effective therapies or cures for infections, highlighting the need to identify and develop antivirals. The experimental murine papillomavirus type 1 (MmuPV1) model provides opportunities to study papillomavirus pathogenesis in cutaneous epithelium, the oral cavity, and the anogenital tract. However, to date the MmuPV1 infection model has not …

Essays On Human Capital, Labor, And Gender, Kritika Sen Chakraborty

Economics ETDs

This dissertation is a collection of chapters that demonstrate the factors affecting human capital and labor market outcomes of adolescents and the gender differences in the quality of employment of adults in South Africa.

The second chapter evaluates the impact of South Africa’s Child Support Grant, an unconditional means-tested grant provided to age-eligible children, on adolescent nutrition outcomes. The findings suggest that welfare programs can alleviate extreme undernutrition and overnutrition among females during the critical growth period of adolescence.

In the third chapter, I use longitudinal data from rural South Africa linked with geospatial climate indicators to examine the effect …

Examining The Effects Of Iron-Oxide Nanoparticles On Primary Gingival Keratinocytes For The Prevention Of Oral Disease, Jennifer C. Carranza

Dental Hygiene ETDs

Oral plaque biofilm has been identified as the primary contributor to dental conditions such as dental caries and periodontal disease that promotes a diverse and pervasive collection of microbial species to inhabit the oral cavity. Disrupting the plaque matrix early could help combat this global disease burden. This study evaluated the effect of IONPs on primary gingival keratinocytes.

Purpose: This study aimed to examine existing research regarding nanoparticles and determine if IONPs affect the PGK cell membranes with preliminary research to find the maximum lysis possible with PGK cells.

Methods: IONP core/shell syntheses were performed. Considering keratinocyte characteristics, examining data …

An Investigation Of Freshwater Turtle Ecology Using Stable Isotopes, Jonathan Duran

Biology ETDs

In 2022 I investigated niche partitioning among native and invasive freshwater turtles across three sites in the Middle Rio Grande using bulk stable isotope analysis. I found high degrees of niche partitioning at sites in which Red-eared sliders (Trachemys scripta) have yet to establish. However, at sites in which red-eared sliders are now the most abundant species they overlapped greatly in isotopic niche with all native turtles, in particular the painted turtle (Chrysemys picta). Using these same techniques, I then examined the trophic interactions between red-eared sliders and their acanthocephalan parasites. My results suggest that acanthocephalans …

Diversification By Dispersal Out Of The Andes Revealed By A Newly Discovered Hummingbird Clade, The ‘True Brilliants’, Marialejandra Castro-Farías

Biology ETDs

We identified a novel clade with striking biogeographic implications. Unsampled genera, Hylonympha and Sternoclyta, were found to be close to the genus Heliodoxa within the Brilliants. Heliodoxa tend to occur in lower montane habitats, such as the tropical, upper tropical, and subtropical elevational zones of the Andes and the Neotropics. Analysis of geographic and elevational zones showed that genus Heliodoxa and related genera diversified by out-of-Andes dispersal to mountain ranges of Central America, coastal Venezuela, the Pantepui, and southeastern Brazil, since the mid-Miocene. Within the Brilliants, reductions in elevation preceded these geographic expansions. Secondary colonization of the lowlands from …

Post-Fire Plant Community Response In Subalpine Mixed Conifer Forest, Sasha Escamilla

Biology ETDs

Increased wildfire activity may lead to significant shifts in vegetation dynamics in high elevation mixed conifer forests. These changes raise concerns about the resilience of forests following wildfire, prompting the need for a deeper understanding of post-fire plant community response. We analyzed up to 11 years of post-fire vegetation data from Valles Caldera National Preserve in northern New Mexico to determine how burned vegetation sites were recovering following high severity wildfire, and whether or not plant communities were transitioning to montane grassland. We found burned understory herbaceous communities were not transitioning into distinctive montane grasslands and were instead recovering to …

Evidence Of Competitive Release Following Overstory Mortality In A Semi-Arid Piñon-Juniper Woodland, Corrie D. Gonzalez

Biology ETDs

Extreme temperatures and severe drought events have led to widespread tree mortality worldwide. In semi-arid regions of the Southwest United States, these events pose a significant threat to piñon-juniper (PJ) woodlands. We studied the effects of piñon and juniper mortality on the growth and physiology of existing saplings in PJ woodlands by analyzing water status, photosynthetic activity, and tissue chemistry to gain insights into these impacts. Juniper saplings exhibited improved water status and water use efficiency in response to overstory mortality, whereas piñon saplings did not. Additionally, both piñon and juniper saplings exhibited increased photosynthetic rates, increased photosynthetic capacity, and …

Thermoregulation In Nocturnal Volant Endotherms Occupying Hot Deserts, William A. Talbot

Biology ETDs

The study of thermoregulation is of growing concern in this era of rapid climate change. Earlier studies such as those pioneered by Scholander and Bartholomew directed focus toward the study of endotherm survival in conditions of cold weather adversity. As techniques evolved in the measurement of parameters quantifying thermoregulation, metabolism and energy allocation, the standardization procedures has increased the comparability of data from diverse taxa. We can now search historical records and current research for explanations to the changes in the distribution, migration, extirpation or survival of animal and plant populations through time. It is increasingly common to observe dramatic …

Resolving The Paradox Of Polyploidy: Underexplored Facets Of Polyploid Plants, Benjamin P. Gerstner

Biology ETDs

Polyploidy, or whole genome duplication, is a common phenomenon in plants, but the establishment and persistence of mixed-ploidy populations remains a paradox. This dissertation explores factors that contribute to the persistence and establishment of mixed-ploidy populations in nature. The first chapter investigates the role of unreduced gametes in neopolyploid establishment and finds that variability in their formation rate can have a significant impact on polyploid establishment and persistence. The second chapter searches for evidence of soil microbes exhibiting ploidy-specificity, a pre-condition for microbe-mediated niche differentiation, a possible stabilizing mechanism contributing to ploidy coexistence. Finally, the third chapter tests for microbe-mediated …