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Full-Text Articles in Life Sciences

Dermatoglyphic Fluctuating Asymmetry In Schizotypy, Marcus R. Thomas Aug 2025

Dermatoglyphic Fluctuating Asymmetry In Schizotypy, Marcus R. Thomas

All-Inclusive List of Electronic Theses and Dissertations

Schizotypy has been linked with many of the proposed endophenotypes of schizophrenia, but research is limited on the relationship between schizotypy and dermatoglyphic fluctuating asymmetry. The present study sought to examine relationships between schizotypy, dermatoglyphic fluctuating asymmetry, handedness, and season of birth. 146 undergraduate students were identified as schizotypes (n = 52) or controls (n = 94) based on the Multidimensional Schizotypy Scale and had their finger and palm prints collected along with completing additional measures of schizotypy and handedness. Schizotypes did not exhibit a greater degree of dermatoglyphic fluctuating asymmetry, negative schizotypy was associated with increased absolute finger ridge …


Genes That Matter: Survival Modeling In Tcga-Brca With Treatment Interactions., David Pratt Aug 2025

Genes That Matter: Survival Modeling In Tcga-Brca With Treatment Interactions., David Pratt

Electronic Theses and Dissertations

High-dimensional genomic data offer both promise and challenges for identifying clinically relevant biomarkers. This study developed a parallelized survival modeling pipeline to identify genes associated with overall survival in breast cancer, with a focus on gene-by-treatment interactions and patient heterogeneity. RNA-Seq data from female patients in the TCGA-BRCA cohort were analyzed. Univariate Cox proportional hazards models were used to screen genes, adjusting for age, race/ethnicity, treatment status, and cancer stage. A LASSO-penalized Cox regression was fit across 2000 random seeds to assess feature stability. Genes were filtered by expression level, statistical significance, and hazard ratios (effect sizes) in either direction, …


Identification Of Crustose Coralline Algae Species In Florida And Their Ability To Induce Larval Settlement Of Caribbean Corals, Danielle Macias Jul 2025

Identification Of Crustose Coralline Algae Species In Florida And Their Ability To Induce Larval Settlement Of Caribbean Corals, Danielle Macias

All HCAS Student Capstones, Theses, and Dissertations

Crustose coralline algae (CCA) are a diverse, globally spread and yet poorly studied group of benthic organisms. They act as settlement cues for coral larvae, but this interaction is often species-specific, as CCA species can be either inducers or inhibitors to larval settlement and metamorphosis. Despite this importance, information on Caribbean CCA distribution, diversity, and impact on coral species is limited due to the difficulty in identifying them. In the present study, CCA samples were collected from seven different reef sites in the southeastern region of Florida’s Coral Reef and genetically identified using molecular analyses. Some of the samples collected …


Health Patterns Of Dementia Caregivers With Chronic Pain: Latent Profile Analysis Of The Promis-29 Measure, Shelbie G. Turner, Dakota D. Witzel, Shana Garza, Karl Pillemer, M Carrington Reid Jul 2025

Health Patterns Of Dementia Caregivers With Chronic Pain: Latent Profile Analysis Of The Promis-29 Measure, Shelbie G. Turner, Dakota D. Witzel, Shana Garza, Karl Pillemer, M Carrington Reid

Human Genetics Publications

We identified patterns of health and functioning in a national sample of dementia family caregivers experiencing chronic pain (N = 273). Utilizing latent profile analysis of the 29-item Patient-Reported Outcomes Measurement Information System (PROMIS-29), we identified three discrete groups: an average group (48%), a low health challenges group (30%), and a high health challenges group (22%). Women were more likely to be in the high (vs. low) health challenges group. There are discrete health patterns of caregivers with chronic pain, with over 20% reporting comorbid poor health and functioning that may negatively affect caregiving quality. Screening caregivers for high …


The Island Biogeography Of Mangrove-Dwelling Vertebrates: Isolation, Specialisation, And Extinction, Jian Xiong David Tan Jul 2025

The Island Biogeography Of Mangrove-Dwelling Vertebrates: Isolation, Specialisation, And Extinction, Jian Xiong David Tan

Biology ETDs

Mangroves are highly dynamic ecosystems that are widely distributed across the coastlines of the tropics and subtropics. Despite their low plant diversity, mangroves host a disproportionately high number of terrestrial vertebrate taxa. However, mangrove specialists — taxa that only occur in mangrove habitats — exhibit a global distribution that is incongruous with the broader background distribution patterns of mangrove-associated fauna, exhibiting higher diversity in Australia and Southeast Asia. This dissertation therefore aims to assess how the diversity and distribution of mangrove specialist fauna may have been shaped by the historical biogeography of mangroves, and the effects of mangrove specialisation on …


Transformation With Genes To Improve Lipid Production And Barcoding To Identify Unknown Algal Species, Michelle T. Rada Jul 2025

Transformation With Genes To Improve Lipid Production And Barcoding To Identify Unknown Algal Species, Michelle T. Rada

Theses and Dissertations

With the rising demand for alternative fuels, algal-based biofuels are a promising, sustainable source that meets commercial interest while producing lower greenhouse gas emissions compared to fossil fuels. This thesis explored two studies, evaluating microalgae for their future potential in lipid yield for biofuel production.

The first study involved developing a cost-efficient electroporation protocol that allowed for the genetic transformation of Chlamydomonas reinhardtii using the pChlamy_4 vector, which supports future cloning of genes to enhance lipid production. Parameters affecting DNA uptake and integration into algal genomes were studied: the effect of cell density, the settings of the electroporation device, and …


Autism Spectrum Disorder: A Review Of Genomic Risk Factors, Diagnostic And Pharmacotherapeutic Strategies, Zohor Azher Jul 2025

Autism Spectrum Disorder: A Review Of Genomic Risk Factors, Diagnostic And Pharmacotherapeutic Strategies, Zohor Azher

Saudi Toxicology Journal

Autism Spectrum Disorder (ASD) is a multifactorial neurodevelopmental condition characterized by impairments in social communication and delayed language development, repetitive behaviors, and sensory processing abnormalities. The genetic background of ASD remains incompletely understood due to significant genetic heterogeneity and complexity. This review aims to present current insights into the genetic landscape of ASD, focusing on both common and rare genomic variations. We describe candidate genes associated with ASD, as they are involved in synaptic function and neuronal signaling, making these findings potential therapeutic targets. This review emphasizes the importance of integrating comprehensive clinical assessments with advanced genetic investigations to enhance …


Perception Of Quality Of Life, Brain Regions, And Cognitive Performance In Hispanic Adults: A Canonical Correlation Approach, Juan C. Lopez-Alvarenga, Jesus D. Melgarejo, Jesus Rivera-Sanchez, Lorena Velazquez-Alvarez, Rosa V. Pirela, John Blangero, Jose E. Cavazos, Michael C. Mahaney, Joseph D. Terwilliger, Gladys E. Maestre Jul 2025

Perception Of Quality Of Life, Brain Regions, And Cognitive Performance In Hispanic Adults: A Canonical Correlation Approach, Juan C. Lopez-Alvarenga, Jesus D. Melgarejo, Jesus Rivera-Sanchez, Lorena Velazquez-Alvarez, Rosa V. Pirela, John Blangero, Jose E. Cavazos, Michael C. Mahaney, Joseph D. Terwilliger, Gladys E. Maestre

School of Medicine Publications

The quality of life (QoL) perception has been studied in neurological diseases; however, there is limited information linking brain morphological characteristics, QoL, and cognition. Human behavior and perception are associated with specific brain areas that interact through diffuse electrochemical networking. We used magnetic resonance imaging (MRI) to analyze the brain region volume (BRV) correlation with the scores of Rand’s 36-item Short Form Survey (SF-36) and cognitive domains (memory and dementia status). We analyzed data from 420 adult participants in the Maracaibo Aging Study (MAS). Principal component analysis with oblimin axis rotation was used to gather redundant information from brain parcels …


Changing Aspen Stand Structure Following Large Carnivore Restoration In Yellowstone, Luke E. Painter, Robert L. Beschta, William J. Ripple Jul 2025

Changing Aspen Stand Structure Following Large Carnivore Restoration In Yellowstone, Luke E. Painter, Robert L. Beschta, William J. Ripple

Aspen Bibliography

Restoration of large carnivores in northern Yellowstone National Park in the late 20th century resulted in a sustained reduction of Rocky Mountain elk (Cervus canadensis) and their herbivory, facilitating new growth of quaking aspen (Populus tremuloides) saplings. In 2020–21, we examined 87 randomly selected, previously sampled aspen stands across northern Yellowstone, combining random plots with stand-wide observations. Forty-three percent of stands contained a new cohort of small trees (5–10 cm dbh), the first documented recruitment of overstory aspen trees in northern Yellowstone since the 1940s. Both aspen saplings ( ≥2 m tall) and small trees were …


Exploring How People Become Investigative Genetic Genealogists Who Assist With Law Enforcement Investigations: A Multiple Case Study, Matthew Serio Hoggatt Jul 2025

Exploring How People Become Investigative Genetic Genealogists Who Assist With Law Enforcement Investigations: A Multiple Case Study, Matthew Serio Hoggatt

Doctoral Dissertations and Projects

In today’s world of criminal justice, the use of Deoxyribonucleic Acid, otherwise known as DNA, to solve crimes, has become a popular tool for law enforcement, and a popular subject plot within the entertainment industry. Also growing in popularity at a fast rate, is the use of DNA combined with consumer-based genealogy websites to help identify unknown suspects or unidentified human remains. This process has become commonly known as investigative genetic genealogy (IGG), or forensic investigative genetic genealogy (FIGG). What remains unclear however, is how people learn the skills necessary to establish a career within the IGG field. The purpose …


Longitudinal Changes In Infant Attention-Related Brain Networks And Fearful Temperament, Courtney A. Filippi, Alice Massera, Jiayin Xing, Hyung G. Park, Emilio A. Valadez, Jed T. Elison, Dana Kanel, Daniel Samuel Pine, Nathan A. Fox, Anderson M. Winkler Jul 2025

Longitudinal Changes In Infant Attention-Related Brain Networks And Fearful Temperament, Courtney A. Filippi, Alice Massera, Jiayin Xing, Hyung G. Park, Emilio A. Valadez, Jed T. Elison, Dana Kanel, Daniel Samuel Pine, Nathan A. Fox, Anderson M. Winkler

Human Genetics Publications

Background: Anxiety disorders may partly stem from altered neurodevelopment of attention-related networks. Neonatal alterations in resting-state functional connectivity (rsFC) among the dorsal attention network (DAN), frontoparietal network (FPN), salience network (SN), and default mode network (DMN) relate to fearful temperament, a risk marker for anxiety. Nevertheless, few studies have examined the development of these networks beyond the first months of life, particularly in fearful infants. In this study, we examined how changes in these networks during the first 2 years of life relate to fearful temperament.

Methods: Using data from the Baby Connectome Project (from 180 infants across 396 sessions), …


Canopy Insect Communities Are Shaped By The Genes And Phenotypes Of Their Aspen Hosts, Clay J. Morrow, Jennifer Lind-Riehl, Christopher T. Cole, Kennedy Rubert-Nason, Cécile Ané, Richard L. Lindroth Jul 2025

Canopy Insect Communities Are Shaped By The Genes And Phenotypes Of Their Aspen Hosts, Clay J. Morrow, Jennifer Lind-Riehl, Christopher T. Cole, Kennedy Rubert-Nason, Cécile Ané, Richard L. Lindroth

Aspen Bibliography

1. Community genetics research aims to identify genetic and phenotypic mechanisms that shape communities as extended phenotypes. To date, most progress has been made identifying variation in herbivore communities associated with intraspecific variation in plants, with little focus on identifying specific genes or traits responsible for that variation. Here, we identify how extended phenotype variation of a foundation tree species, Populus tremuloides, arises from trait variation among individuals and specific genes. 2. We quantified heritability for 13 tree traits -- including phenology, defense chemistry, reproduction, and morphology -- and for 18 associated insect species (640,557 individuals). We performed genomic …


Human Development, Inequality, And Their Associations With Brain Structure Across 29 Countries, Vicente Medel, Luz M. Alliende, Richard Bethlehem, Jakob Seidlitz, Grace Ringlein, Celso Arango, Aurina Arnatkevičiūtė, Laila Asmal, Mark Bellgrove, Anderson M. Winkler Jul 2025

Human Development, Inequality, And Their Associations With Brain Structure Across 29 Countries, Vicente Medel, Luz M. Alliende, Richard Bethlehem, Jakob Seidlitz, Grace Ringlein, Celso Arango, Aurina Arnatkevičiūtė, Laila Asmal, Mark Bellgrove, Anderson M. Winkler

Human Genetics Publications

Background: The macro-social and environmental conditions in which people live, such as the level of a country’s development or inequality, are associated with brain-related disorders. However, the relationship between these systemic environmental factors and the brain remains unclear. We here aimed to determine the association between the level of development and inequality of a country and the brain structure of healthy adults.

Methods: We conducted a cross-sectional study pooling brain imaging (T1-based) data from 145 magnetic resonance imaging (MRI) studies in 7,962 healthy adults (4,110 women) in 29 different countries. We used a meta-regression approach to relate the brain structure …


Update To: Advancing Butterfly Systematics Through Genomic Analysis, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick Grishin Jul 2025

Update To: Advancing Butterfly Systematics Through Genomic Analysis, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick Grishin

The Taxonomic Report of the International Lepidoptera Survey

In this update, we propose (type species or type localities in parentheses): Lochris Grishin, nom. nov. (Lasaia oileus Godman, 1903; Lepidoptera: Riodinidae) as a new substitute name for Locris Grishin, 2025 preoccupied by Locris Stål, 1866 (Cercopis rubra Fabricius, 1794; Hemiptera: Cercopidae), 5 new species, and 5 new subspecies: Emesis (Mandania) mandarina Grishin, sp. n. (Brazil: Santa Catarina) and Emesis (Mandania) mandela Grishin, sp. n. (Venezuela, Carabobo) in Riodinidae Grote, 1895 (1827); others in Hesperiidae Latreille, 1809: Telegonus (Rhabdoides) flavifimbro Grishin, sp. n. (Colombia), Urbanus (Urbanoides) dolus Grishin, sp. n. (Colombia: …


Identification Of Serum Exosome Proteins In Systemic Sclerosis With Interstitial Lung Disease By Aptamer Proteomics, Sonsoles Piera-Velazquez, Simon T. Dillon, Xuesong Gu, Towia A. Libermann, Sergio A. Jimenez Jul 2025

Identification Of Serum Exosome Proteins In Systemic Sclerosis With Interstitial Lung Disease By Aptamer Proteomics, Sonsoles Piera-Velazquez, Simon T. Dillon, Xuesong Gu, Towia A. Libermann, Sergio A. Jimenez

Jefferson Institute of Molecular Medicine Papers and Presentations

OBJECTIVE: A major unmet need for Systemic Sclerosis (SSc) clinical management is the absence of well validated biomarkers for early diagnosis of SSc-associated interstitial lung disease (SSc-ILD). The objective of this study was to identify proteins contained within serum exosomes that may serve as potential biomarkers to differentiate patients with Diffuse SSc without SSc-ILD from patients with Diffuse SSc with SSc-ILD employing aptamer-based proteomics.

METHODS: Serum exosomes were isolated from two cohorts of patients. The first cohort included 15 patients with Diffuse SSc without SSc-ILD and 14 patients with Diffuse SSc with SSc-ILD and the second cohort included 12 patients …


Meta-Analysis Of Uveal Melanoma Genome-Wide Association Studies Identifies Novel Risk Loci And Population Effect Size Heterogeneity., Georgia Mies, Noah L. Tsao, Alexandre Houy, Sarah E. Coupland, Helen Kalirai, Asta Försti, Kari Hemminki, Hauke Thomsen, Marc-Henri Stern, Carol L. Shields, Scott M. Damrauer, Katheryn G. Ewens, Arupa Ganguly, Iain Mathieson Jul 2025

Meta-Analysis Of Uveal Melanoma Genome-Wide Association Studies Identifies Novel Risk Loci And Population Effect Size Heterogeneity., Georgia Mies, Noah L. Tsao, Alexandre Houy, Sarah E. Coupland, Helen Kalirai, Asta Försti, Kari Hemminki, Hauke Thomsen, Marc-Henri Stern, Carol L. Shields, Scott M. Damrauer, Katheryn G. Ewens, Arupa Ganguly, Iain Mathieson

Wills Eye Hospital Papers

Uveal melanoma (UM) is a rare but frequently metastasizing cancer. Genome-wide association studies have identified three common genome-wide significant germline risk loci. Here, we perform a genome-wide association study on 401 new cases and conduct a meta-analysis with three independent previously published cohorts for a total sample size of 2,426 cases. We confirm the three previously identified risk loci and identify four additional genome-wide significant loci. We find that eye pigmentation-decreasing variants are systematically associated with increased UM risk and that selection for lighter pigmentation in the past 5,000 years explains about 73% of the difference in UM incidence between …


Aspen Impedes Wildfire Spread In Southwestern United States Landscapes, Matthew P. Harris, Jonathan D. Coop, Jared A. Balik, Jessika R. Mcfarland, Sean A. Parks, Camille S. Stevens-Rumann Jul 2025

Aspen Impedes Wildfire Spread In Southwestern United States Landscapes, Matthew P. Harris, Jonathan D. Coop, Jared A. Balik, Jessika R. Mcfarland, Sean A. Parks, Camille S. Stevens-Rumann

Aspen Bibliography

Aspen (Populus tremuloides) forests are generally thought to impede fire spread, yet the extent of this effect is not well quantified in relation to other vegetation types. We examined the influence of aspen cover on interpolated daily fire spread rates, the relative abundance of aspen at fire perimeters versus burn interiors, and whether these relationships shifted under more fire-conducive atmospheric conditions. Our study incorporated 314 fires occurring between 2001 and 2020 in the southwestern United States and a suite of gridded vegetation, topography, and fire weather predictor variables. We found that aspen slows fire progression: as aspen cover …


An Integrative Genomics Approach For The Discovery Of Potential Clinically Actionable Diagnostic And Prognostic Biomarkers In Colorectal Cancer, Mark Fertel, Duaa Mohammad Alawad, Chindo Hicks Jul 2025

An Integrative Genomics Approach For The Discovery Of Potential Clinically Actionable Diagnostic And Prognostic Biomarkers In Colorectal Cancer, Mark Fertel, Duaa Mohammad Alawad, Chindo Hicks

School of Graduate Studies Faculty Publications

Background: Despite remarkable progress in clinical management of patients and intensified screening, colorectal cancer remains the second most common cause of cancer-related death in the United States. The recent surge of next generation sequencing has enabled genomic analysis of colorectal cancer genomes. However, to date, there is little information about leveraging gene expression data and integrating it with somatic mutation information to discover potential biomarkers and therapeutic targets. Here, we integrated gene expression data with somatic mutation information to discover potential diagnostic and prognostic biomarkers and molecular drivers of colorectal cancer. Methods: We used publicly available gene expression and somatic …


Investigating The Regulation Of The Hypothalamic-Pituitary-Interrenal Axis In Atlantic Sturgeon (Acipenser Oxyrinchus) Following An Acute Stressor, Liam Doherty, Ciarán A. Shaughnessy, Robert M. Dores Jul 2025

Investigating The Regulation Of The Hypothalamic-Pituitary-Interrenal Axis In Atlantic Sturgeon (Acipenser Oxyrinchus) Following An Acute Stressor, Liam Doherty, Ciarán A. Shaughnessy, Robert M. Dores

DU Undergraduate Research Journal Archive

This study investigated the response to acute stress in Atlantic sturgeon (Acipenser oxyrinchus) and HPI axis regulation of glucocorticoid production during stress by examining the expression of key genes―corticotropin-releasing hormone (crh), corticotropin-releasing hormone receptor (crhr), proopiomelanocortin (pomca/pomcb), melanocortin 2 receptor (mc2r), and steroidogenic acute regulatory protein (star)―that are associated with hypothalamus/pituitary/interrenal (HPI) axis of bony fishes. Additionally, tyrosine hydrogenase (th1 and th2) and phosphoenolpyruvate carboxykinase (pepck), found in catecholamine-producing cells in the head kidney of the sturgeon, were investigated as …


Du Undergraduate Showcase Abstracts: Research, Scholarship, And Creative Works, Kabe Aberle, Nadia Kako, Kateri Mcrae, Brooke Agulnek, Sky Palmon, Yasmine Ramirez, Francisca Aguirre Beltran, Ashley Juarez, Bridget Kim, Tessa Appel, Sterling Kerr, Spencer Ingley, Gabe Meyer, Robin Tinghitella, Dale Broder, Lily Baeza, Chloe Beers, Julia Coakley, Whitney Kelsey, Sydney Gainforth, Gabi Wing, Audrey Martin, Aaliyah Amore Berry, Brooke Watley, Kiruthika Venkatesan, Rachel Bienstock, Annabella Brotherston, Madison Bryant, Mia Burgener, Emma P. Lieb, Rachel A. Johnson, Jennifer L. Hoffman, Kania Campbell, Kiena Campbell, Courtney Cassidy, Sage Krzyzkowski, Maddox Jones, Skylar Abookire, Luke Hawkins, Sunnah Yoon, Andrea Chu, Yan Qin, Nyah Cubbison, Brian Gearity, Daniel Mcintosh, Mariely Cruz, Edward Garrido, Grady Dionne, Nicole Doris, Lyndsie Salvagio, Ann-Charlotte Granholm-Bentley, Anna Dymov, Hannah Eckert, Gabrielle Welsh, Erica Larson, Charlie Ernst, Anna Zhou, Sarah Watamura, Larissa Fedorovich-Klein, Georgie Fields, Kimberly A. Guevara, Aven Mccall, Ben Peltier, Feruz Yahia, Patrick Flores, Jadyn Floyd, Sophia Forcier, J. Von R. Monteza, Peter Sokol-Hessner, Gwendolyn Geiger, Scott Nichols, Camryn Gunter, Kendal Hengst, Charlie Bednarz, Issy Garside, Addison Baker, Rachel Mina, Brooke Hermanson, Amanda Klingler, William Highfill, Sydney Jaques, Kerstin Lewey, Allison Grossery, Daniel Linseman, Ethan Lim, Jagger Livengood, Owen Mantelli, Gabby Pappas, Abby Mcdonald, Madeleine Dierking, Eve Miller, Emma Loeber, Anna Marlow, Michael Kerwin, Ella Mathews, Hillary Hamann, Khadija Mohamed, Vivian Nguyen, Gabri Notov, Ifunayachi Ogbonna-Ukuku, Sunil Kumar, Charles Baysah, Sarah Olson, Don Sullivan, Anna Paradiso, Jay Parrish, Mira Pronobis, Alisha Pravasi, Kerstin Haring, Diego Ramirez, Christopher Reardon, Juliana Ramirez, Casey Doherty, Ella Kestner, Teagan Weindel, Cate Billings, Pablo Torre-Walter, Lucy Rand, Samantha Reynolds, Mark Siemens, Khadeeja Rashid, Laine Satterlee, Piper Heilbronner, Lily Pound, Ben Whitehurst, Anna Respet, Lizzie Lesoing, Sydney Hertel, Aya Saad-Masri, Brooke Ballenger, Max Proske, Hannah Rosenberg, Ellia Nakahara, Sophia Espinoza, Ivan Woolhouse, Simon Ruland, Gorkem Er, Timothy Sweeny, Melaku Saketa, Michela Schenk, Maren Lynch, Madi Hamm, Grace Schroeder, Michelle Rozenman, Rana Seif, Jackson Hall, Marisela Simental, Daniel Paredes, Aaron Mena, Preston Spaan, Evelyn Stovin, David Andrew Swartz, Anh Tran, Daniel Pittman, Luke Farchione, Emily Boyer, Ukari Verner, Lacey Conrad, Jonathan Velotta, James Weiner, Jagger Gossett, Noah Sherry, Sam Proud, Ben Block, Avi Narayana, Zoey Weiss, Alyssa Wilson, Gabrielle Walsh, David Zonana, Keely Wright, Kena Riveria, Lillybelle Deer, Jena Doom, Elysia Davis, Isabelle Yaremenko, Caitlyn Young Jul 2025

Du Undergraduate Showcase Abstracts: Research, Scholarship, And Creative Works, Kabe Aberle, Nadia Kako, Kateri Mcrae, Brooke Agulnek, Sky Palmon, Yasmine Ramirez, Francisca Aguirre Beltran, Ashley Juarez, Bridget Kim, Tessa Appel, Sterling Kerr, Spencer Ingley, Gabe Meyer, Robin Tinghitella, Dale Broder, Lily Baeza, Chloe Beers, Julia Coakley, Whitney Kelsey, Sydney Gainforth, Gabi Wing, Audrey Martin, Aaliyah Amore Berry, Brooke Watley, Kiruthika Venkatesan, Rachel Bienstock, Annabella Brotherston, Madison Bryant, Mia Burgener, Emma P. Lieb, Rachel A. Johnson, Jennifer L. Hoffman, Kania Campbell, Kiena Campbell, Courtney Cassidy, Sage Krzyzkowski, Maddox Jones, Skylar Abookire, Luke Hawkins, Sunnah Yoon, Andrea Chu, Yan Qin, Nyah Cubbison, Brian Gearity, Daniel Mcintosh, Mariely Cruz, Edward Garrido, Grady Dionne, Nicole Doris, Lyndsie Salvagio, Ann-Charlotte Granholm-Bentley, Anna Dymov, Hannah Eckert, Gabrielle Welsh, Erica Larson, Charlie Ernst, Anna Zhou, Sarah Watamura, Larissa Fedorovich-Klein, Georgie Fields, Kimberly A. Guevara, Aven Mccall, Ben Peltier, Feruz Yahia, Patrick Flores, Jadyn Floyd, Sophia Forcier, J. Von R. Monteza, Peter Sokol-Hessner, Gwendolyn Geiger, Scott Nichols, Camryn Gunter, Kendal Hengst, Charlie Bednarz, Issy Garside, Addison Baker, Rachel Mina, Brooke Hermanson, Amanda Klingler, William Highfill, Sydney Jaques, Kerstin Lewey, Allison Grossery, Daniel Linseman, Ethan Lim, Jagger Livengood, Owen Mantelli, Gabby Pappas, Abby Mcdonald, Madeleine Dierking, Eve Miller, Emma Loeber, Anna Marlow, Michael Kerwin, Ella Mathews, Hillary Hamann, Khadija Mohamed, Vivian Nguyen, Gabri Notov, Ifunayachi Ogbonna-Ukuku, Sunil Kumar, Charles Baysah, Sarah Olson, Don Sullivan, Anna Paradiso, Jay Parrish, Mira Pronobis, Alisha Pravasi, Kerstin Haring, Diego Ramirez, Christopher Reardon, Juliana Ramirez, Casey Doherty, Ella Kestner, Teagan Weindel, Cate Billings, Pablo Torre-Walter, Lucy Rand, Samantha Reynolds, Mark Siemens, Khadeeja Rashid, Laine Satterlee, Piper Heilbronner, Lily Pound, Ben Whitehurst, Anna Respet, Lizzie Lesoing, Sydney Hertel, Aya Saad-Masri, Brooke Ballenger, Max Proske, Hannah Rosenberg, Ellia Nakahara, Sophia Espinoza, Ivan Woolhouse, Simon Ruland, Gorkem Er, Timothy Sweeny, Melaku Saketa, Michela Schenk, Maren Lynch, Madi Hamm, Grace Schroeder, Michelle Rozenman, Rana Seif, Jackson Hall, Marisela Simental, Daniel Paredes, Aaron Mena, Preston Spaan, Evelyn Stovin, David Andrew Swartz, Anh Tran, Daniel Pittman, Luke Farchione, Emily Boyer, Ukari Verner, Lacey Conrad, Jonathan Velotta, James Weiner, Jagger Gossett, Noah Sherry, Sam Proud, Ben Block, Avi Narayana, Zoey Weiss, Alyssa Wilson, Gabrielle Walsh, David Zonana, Keely Wright, Kena Riveria, Lillybelle Deer, Jena Doom, Elysia Davis, Isabelle Yaremenko, Caitlyn Young

DU Undergraduate Research Journal Archive

Abstracts from the DU Undergraduate Research Showcase.


Structural Brain Correlates Of Childhood Inhibited Temperament: An Enigma-Anxiety Mega-Analysis, Janna Marie Bas-Hoogendam, Rachel Bernstein, Brenda E. Benson, Samuel E. C. Frank, Kristin A. Buss, Koraly Pérez-Edgar, Giovanni A. Salum, Andrea P. Jackowski, Rodrigo A. Bressan, Anderson M. Winkler Jul 2025

Structural Brain Correlates Of Childhood Inhibited Temperament: An Enigma-Anxiety Mega-Analysis, Janna Marie Bas-Hoogendam, Rachel Bernstein, Brenda E. Benson, Samuel E. C. Frank, Kristin A. Buss, Koraly Pérez-Edgar, Giovanni A. Salum, Andrea P. Jackowski, Rodrigo A. Bressan, Anderson M. Winkler

Human Genetics Publications

Objective

Childhood inhibited temperament (cIT) is associated with an increased risk for developing internalizing psychopathology. Neurobiological characteristics identified by structural magnetic resonance imaging (MRI) may elucidate the neural substrates for cIT, but studies are scarce and often focus on particular regions of interest. Moreover, current findings lack replication. This preregistered analysis from the ENIGMA-Anxiety Working Group examined structural brain characteristics associated with cIT using a comprehensive whole-brain approach.

Method

Temperament assessments (behavioral observations, parent/teacher reports or self-reports on cIT before age 13 years) and MRI data (age at scan, 6-25 years) from international research sites (Europe, North America, South America) …


Alpha-Synuclein Null Mutation Exacerbates The Phenotype Of A Model Of Menkes Disease In Female Mice, Meganne Casey, Dan Zou, Renee Reijo Pera Phd, Tiffany Hensley-Mcbain, Deborah E. Cabin Jul 2025

Alpha-Synuclein Null Mutation Exacerbates The Phenotype Of A Model Of Menkes Disease In Female Mice, Meganne Casey, Dan Zou, Renee Reijo Pera Phd, Tiffany Hensley-Mcbain, Deborah E. Cabin

Touro College of Osteopathic Medicine (Great Falls) Publications and Research

Human SNCA, which encodes a-synuclein protein (SNCA), was the first gene linked to familial Parkinson's disease (PD). Since the discovery of the genetic link of SNCA to Parkinson's nearly three decades ago, many studies have investigated the normal function of SNCA protein. However, understanding of the normal function of SNCA is complicated by the lack of a reliable mammalian model of PD; indeed, mice with homozygous null mutations in the Snca gene live a normal lifespan and have only subtle synaptic deficits. Here, we report the first genetic modifier (a sensitized mutation) of a murine Snca null …


Utilizing Pharmacogenomics To Improve Students' Self-Perception On The Interprofessional Competencies Of Roles And Responsibilities, And Teams And Teamwork, Amanda Brown, Moom R. Roosan, Robert Goldsteen, Scott D. Ochs, Reza Taheri Jul 2025

Utilizing Pharmacogenomics To Improve Students' Self-Perception On The Interprofessional Competencies Of Roles And Responsibilities, And Teams And Teamwork, Amanda Brown, Moom R. Roosan, Robert Goldsteen, Scott D. Ochs, Reza Taheri

Pharmacy Faculty Articles and Research

Introduction

Pharmacogenomics (PGx) is an emerging discipline with the potential to revolutionize personalized medicine, but its successful implementation requires interprofessional collaboration. To address this need, a virtual interprofessional education (IPE) session was designed for student pharmacists and medical students to engage in a case-based learning experience.

Objective

The primary objective was to develop and implement an IPE activity focused on a patient case requiring PGx-guided dual antiplatelet therapy and to assess students' perceptions of two Interprofessional Education Collaborative (IPEC) Version 3 Core Competencies. A secondary objective was to identify key lessons from the session.

Methods

Pharmacist and physician faculty collaboratively …


Foxo Factors’ Ability In Binding To And Inducing Tcf7 In Glioblastoma Cells, Stephanie Oyervides Jul 2025

Foxo Factors’ Ability In Binding To And Inducing Tcf7 In Glioblastoma Cells, Stephanie Oyervides

Theses and Dissertations

Glioblastoma Multiforme (GBM) is an aggressive astrocytoma tumor type with a poor prognosis and limited immunotherapeutic options for those inflicted. Stem gene expression of this cancer indicates a direct relationship with the transcription factors, Forkhead box subfamily O (FOXO-1, -3 and - 4). These transcription factors are evolutionarily conserved, partially redundant. They are involved in diverse and fundamental biological processes such as cell survival, stem cell homeostasis, cell fate determination, cell cycle maintenance, metabolism, and apoptosis. Increasing evidence suggests interconnectivity between the WNT Pathway and FOXO transcription factors; however, the mechanism and full extent to which these interactions play a …


Cazyme Gene Cluster Diversity In Human Gut Microbiome, Yi Xing Jul 2025

Cazyme Gene Cluster Diversity In Human Gut Microbiome, Yi Xing

Department of Food Science and Technology: Dissertations, Theses, and Student Research

In gut microbiome research, carbohydrate-active enzyme gene clusters (CGCs) have emerged as key functional units for understanding microbial glycan degradation. Unlike taxonomic or broad pathway annotations, CGCs offer gene-cluster-level resolution and capture substrate-specific microbial functions. However, their diversity and distribution in relation to host metabolic phenotypes, such as obesity, remain poorly characterized. This study tests the hypothesis that the composition and abundance of fiber-targeting CGCs vary between obese and healthy human gut microbiomes, reflecting distinct microbial carbohydrate utilization strategies. To examine this, we constructed a high-quality reference CGC dataset comprising 94,019 clusters from the Unified Human Gastrointestinal Genome and profiled …


Metabolic And Physiological Regulation In C. Elegans: Insights Into Sperm Activation And Peroxisome-Mediated Longevity, Yash Flora Jun 2025

Metabolic And Physiological Regulation In C. Elegans: Insights Into Sperm Activation And Peroxisome-Mediated Longevity, Yash Flora

LSU Doctoral Dissertations

Organelle dynamics lie at the heart of cellular signaling and metabolic regulation, orchestrating physiological processes such as reproduction and aging across the lifespan. In this dissertation, I investigate how organelle-based signaling coordinates sperm activation and modulates organismal aging in the nematode Caenorhabditis elegans. I identify SPIN-4, a previously uncharacterized Spinster family transporter, as a key regulator of spermiogenesis. SPIN-4 is strongly expressed in developing sperm, localizes to the plasma membrane, and promotes sperm activation by facilitating the export of sphingosine-1-phosphate (S1P). Loss of spin-4 results in defective pseudopod formation, reduced motility, and compromised fertility, phenotypes that can be rescued …


Bite By Bite: How Ungulate Browsing Shapes North America's Forest Future, Darius Hardalau, Vladut Stefanescu, Mindaugas Bakševičius, Michael Manton, Charles Ruffner, Gediminas Brazaitis, Georgeta Ionescu, Ovidiu Ionescu Jun 2025

Bite By Bite: How Ungulate Browsing Shapes North America's Forest Future, Darius Hardalau, Vladut Stefanescu, Mindaugas Bakševičius, Michael Manton, Charles Ruffner, Gediminas Brazaitis, Georgeta Ionescu, Ovidiu Ionescu

Aspen Bibliography

Ungulate browsing represents a contemporary issue for forest development, influencing forest regeneration, composition, and management practices across the world, especially in North America. This review synthesizes findings from 101 studies conducted between 1980 and 2025 to examine patterns of herbivory damage through browsing by moose, elk, white-tailed deer, black-tailed deer, and bison. Despite regional variation, high ungulate density consistently emerges as the primary factor driving browsing intensity and ecological and economic impact, leading to decreased social acceptance of coexistence with ungulates. This review highlights the selective suppression of palatable species such as balsam fir, red oak, and white cedar, leading …


Ifi16 Mediates Deacetylation Of Kshv Chromatin Via Interaction With Nurd And Sin3a Co-Repressor Complexes, Anandita Ghosh, Bala Chandran, Arunava Roy Jun 2025

Ifi16 Mediates Deacetylation Of Kshv Chromatin Via Interaction With Nurd And Sin3a Co-Repressor Complexes, Anandita Ghosh, Bala Chandran, Arunava Roy

School of Medicine Faculty Publications

IFI16 is a well-characterized nuclear innate immune DNA sensor that detects foreign dsDNA, including herpesviral genomes, to activate the inflammasome and interferon pathways. Beyond immune signaling, IFI16 also functions as an antiviral restriction factor, promoting the silencing of invading viral genes through transcriptional and epigenetic mechanisms. We recently demonstrated another role of IFI16, in which it interacts with and recruits the class I histone deacetylases, HDAC1 and 2, to the KSHV latency protein LANA, modulating its acetylation and function. In this study, we asked whether these IFI16-HDAC1/2 interactions contribute to broader epigenetic regulation of the KSHV chromatin. Our findings reveal …


Changes In Immune-Regulated Gene Methylation Over Time In Women Who Do And Do Not Develop Breast Cancer, Kyle Laney Jun 2025

Changes In Immune-Regulated Gene Methylation Over Time In Women Who Do And Do Not Develop Breast Cancer, Kyle Laney

USF Tampa Graduate Theses and Dissertations

Breast cancer survivors face elevated risks of chronic inflammatory conditions and immunedysfunction compared to the general population. These elevated health risks in survivors are well-documented but mechanistically poorly understood. This study aimed to characterize longitudinal changes in DNA methylation patterns of immune-regulatory genes in women who developed breast cancer compared to cancer-free controls. We conducted an EWAS using Sister Study cohort data, analyzing longitudinal changes in DNA methylation by comparing the difference in beta values between pre- and post-diagnosis time points in breast cancer cases versus changes over the same period in cancer-free controls. The analysis included 414 participants: 189 …


A Rubric For Assessing Conformance To The Ten Rules For Credible Practice Of Modeling And Simulation In Healthcare, Alexandra Manchel, Ahmet Erdemir, Lealem Mulugeta, Joy Ku, Bruno Rego, Marc Horner, William Lytton, Jerry Myers, Rajanikanth Vadigepalli Jun 2025

A Rubric For Assessing Conformance To The Ten Rules For Credible Practice Of Modeling And Simulation In Healthcare, Alexandra Manchel, Ahmet Erdemir, Lealem Mulugeta, Joy Ku, Bruno Rego, Marc Horner, William Lytton, Jerry Myers, Rajanikanth Vadigepalli

Computational Medicine Center Faculty Papers

The power of computational modeling and simulation (M&S) is realized when the results are credible, and the workflow generates evidence that supports credibility for the context of use. The Committee on Credible Practice of Modeling & Simulation in Healthcare was established to help address the need for processes and procedures to support the credible use of M&S in healthcare and biomedical research. Our community efforts have led to the Ten Rules (TR) for Credible Practice of M&S in life sciences and healthcare. This framework is an outcome of a multidisciplinary investigation from a wide range of stakeholders beginning in 2012. …