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09.15.2025 Ored Connect, Liz Williamson Sep 2025

09.15.2025 Ored Connect, Liz Williamson

ORED Newsletter

  • NIH Common Forms
  • ORED Field Fest


Evaluation Of Dietary Additives On Yellowtail Kingfish (Seriola Lalandi) Gut And Skin Health And Disease Resistance Against Photobacterium Damselae Subsp. Damselae, Md Reaz Chaklader, Lindsey Woolley, Chelsea Woods, Frances Stephens, Richard Smullen, Gavin Partridge Sep 2025

Evaluation Of Dietary Additives On Yellowtail Kingfish (Seriola Lalandi) Gut And Skin Health And Disease Resistance Against Photobacterium Damselae Subsp. Damselae, Md Reaz Chaklader, Lindsey Woolley, Chelsea Woods, Frances Stephens, Richard Smullen, Gavin Partridge

Fisheries Research Articles

The present study evaluated the effectiveness of five dietary additives in improving growth performance, gut and skin health and disease resistance against Photobacterium damselae subsp. damselae (Pdd) in yellowtail kingfish (YTK) (Seriola lalandi). The additives were top-coated onto a commercial diet. The five additives evaluated were brewer’s yeast (BY), a yeast-based mannan oligosaccharide (MOS), a polyphenol product, a monoglyceride product and a combination of MOS and a superoxide dismutase (SOD) product. The monoglyceride and polyphenol products were trialled at both a low and high inclusion level. Diets were fed to YTK in triplicate tanks for 55 days. The …


Biophobia And Pet Ownership: Can Having A Pet Mitigate Our Fear And Aversion Towards Nature?, Alexia Barrable Sep 2025

Biophobia And Pet Ownership: Can Having A Pet Mitigate Our Fear And Aversion Towards Nature?, Alexia Barrable

The International Journal of Ecopsychology (IJE)

Biophobia, which we defined as fear, disgust, or aversion toward natural environments or organisms, has received little empirical attention when compared to biophilia, despite its implications for human and planetary wellbeing. This mixed-methods study explores the relationship between pet ownership, biophobia, and nature connectedness among 373 English- speaking adults. Quantitative findings reveal that (M = 26.4) exhibit significantly lower levels of biophobia than non-pet owners (M = 30.1; U = 5179, Z = -2.95, p = .002, R = 0.27), although no significant differences in nature connectedness were found across pet ownership (U = 7033, Z = 0.31, p = …


Postscript: A Historical Interlude, George Conesa Sep 2025

Postscript: A Historical Interlude, George Conesa

The International Journal of Ecopsychology (IJE)

Ravens fly in circles above our heads. Coyote peers from the hedge but dares not. Kachinas have not danced. The awelos tried but youth went their own way.


Bonding With Earth: Hyperbole, Metaphor, Or Fanciful Teleology?, George Conesa Sep 2025

Bonding With Earth: Hyperbole, Metaphor, Or Fanciful Teleology?, George Conesa

The International Journal of Ecopsychology (IJE)

At a mere glance, the notion that humans could (should strive for?) bond emotionally with an entire planet, Earth, sounds hyperbolic at best and psychologically unsound at worst. For although humans might be motivated to act in ways that pass for “bonding,” perhaps assisted by intentions and sentiments to care for a whole planet, the question remains: Which notion of Earth are they really investing all their emotions in? Important to psychologists would be to inquire whether incomplete, idealized, oversimplified, or fantastic notions of “Earth,” or bonding, turn out to be transference-love-like, platonic, overidealized forms of affect, which seldom develop …


Self-Transcendent Experiences As Promoters Of Ecological Wellbeing? Exploration Of The Evidence And Hypotheses To Be Tested, Amy Isham Sep 2025

Self-Transcendent Experiences As Promoters Of Ecological Wellbeing? Exploration Of The Evidence And Hypotheses To Be Tested, Amy Isham

The International Journal of Ecopsychology (IJE)

In recent years, much has been written on the role of different mental states and their potential to influence our way of thinking and, perhaps more importantly, the way we act. With the recent acceleration of environmental and mental health issues, alongside the limited effectiveness of existing interventions, an exploration of new approaches to deliver transformative change is required. We therefore explore the emerging potential of a type of mental state known as self-transcendent experiences (STEs) as a driver of ecological wellbeing. We focus on four types of STEs: those facilitated by experiences of flow, awe, and mindfulness, as well …


Setd2 Suppresses Tumorigenesis In A Krasg12c-Driven Lung Cancer Model, And Its Catalytic Activity Is Regulated By Histone Acetylation, Ricardo J Mack, Natasha M Flores, Geoffrey C Fox, Hanyang Dong, Metehan Cebeci, Simone Hausmann, Tourkian Chasan, Jill M Dowen, Brian D Strahl, Pawel K Mazur, Or Gozani Sep 2025

Setd2 Suppresses Tumorigenesis In A Krasg12c-Driven Lung Cancer Model, And Its Catalytic Activity Is Regulated By Histone Acetylation, Ricardo J Mack, Natasha M Flores, Geoffrey C Fox, Hanyang Dong, Metehan Cebeci, Simone Hausmann, Tourkian Chasan, Jill M Dowen, Brian D Strahl, Pawel K Mazur, Or Gozani

Faculty, Staff and Student Publications

Histone H3 trimethylation at lysine 36 (H3K36me3) is a key chromatin modification that regulates fundamental physiological and pathological processes. In humans, SETD2 is the only known enzyme that catalyzes H3K36me3 in somatic cells and is implicated in tumor suppression across multiple cancer types. While there is considerable crosstalk between the SETD2-H3K36me3 axis and other epigenetic modifications, much remains to be understood. Here, we show that Setd2 functions as a potent tumor suppressor in a KRASG12C-driven lung adenocarcinoma (LUAD) mouse model, and that acetylation enhances SETD2 in vitro methylation of H3K36 on nucleosome substrates. In vivo, Setd2 ablation accelerates lethality in …


Bayesian Clustering Prior With Overlapping Indices For Effective Use Of Multisource External Data, Xuetao Lu, J Jack Lee Sep 2025

Bayesian Clustering Prior With Overlapping Indices For Effective Use Of Multisource External Data, Xuetao Lu, J Jack Lee

Faculty, Staff and Student Publications

The use of external data in clinical trials offers numerous advantages, such as reducing enrollment, increasing study power, and shortening trial duration. In Bayesian inference, information in external data can be transferred into an informative prior for future borrowing (i.e. prior synthesis). However, multisource external data often exhibits heterogeneity, which can cause information distortion during the prior synthesizing. Clustering helps identifying the heterogeneity, enhancing the congruence between synthesized prior and external data. Obtaining optimal clustering is challenging due to the trade-off between congruence with external data and robustness to future data. We introduce two overlapping indices: the overlapping clustering index …


Low Energy Availability Prevalence, Dietary Habits, And Sleep In Female Army Rotc Cadets, Hannah K. Eberhardt, Brandon D. Willingham, Matthew F. Brisebois, Patrick G. Saracino Sep 2025

Low Energy Availability Prevalence, Dietary Habits, And Sleep In Female Army Rotc Cadets, Hannah K. Eberhardt, Brandon D. Willingham, Matthew F. Brisebois, Patrick G. Saracino

International Journal of Exercise Science

International Journal of Exercise Science 18(6): 1030-1046, 2025. Low energy availability (LEA) results in numerous health and performance decrements. While a high prevalence of LEA and sleep disturbance has been observed in male Army Reserve Officers’ Training Corps (ROTC) cadets, no data exists in females. This study aimed to determine LEA prevalence, dietary habits, and sleep quantity and quality in female U.S. ROTC cadets. Following an overnight fast, ten cadets (22±4 yrs, 166.0±6.1 cm, 67.1±9.1 kg, 26.1±6.2% body fat, 49.2±4.8 kg fat-free mass (FFM)) had their body composition and resting metabolic rate measured. Validated questionnaires assessed LEA symptoms and sleep. …


Preclinical Perspectives On Disorders Of The Temporomandibular Joint: Tracing The Past, Navigating The Present, And Shaping The Future, John K Neubert, Kyle Allen, Tamara Alliston, Alejandro J Almarza, Kyriacos A Athanasiou, Basak Donertas-Ayaz, Bruna Balbino De Paula, Roxanne Bavarian, Nidhi Bhutani, Brian E Cairns, Robert M Caudle, Yang Chai, Jian-Fu Chen, Yong Chen, Glenn T Clark, Yenisel Cruz-Almeida, Alexandre F Dasilva, Paul L Durham, Airam Vivanco Estela, Millie Embree, Roger Fillingim, Fernando Guastaldi, Shruti Handa, Sunil D Kapila, David Keith, Keith L Kirkwood, Phillip Kramer, Katherine T Martucci, Niall P Murphy, Andrea G Nackley, Richard Ohrbach, Benedikt Sagl, Shad B Smith, Feng Tao, Beth Winkelstein, Hai Yao, Simon Young, Michael S Gold Sep 2025

Preclinical Perspectives On Disorders Of The Temporomandibular Joint: Tracing The Past, Navigating The Present, And Shaping The Future, John K Neubert, Kyle Allen, Tamara Alliston, Alejandro J Almarza, Kyriacos A Athanasiou, Basak Donertas-Ayaz, Bruna Balbino De Paula, Roxanne Bavarian, Nidhi Bhutani, Brian E Cairns, Robert M Caudle, Yang Chai, Jian-Fu Chen, Yong Chen, Glenn T Clark, Yenisel Cruz-Almeida, Alexandre F Dasilva, Paul L Durham, Airam Vivanco Estela, Millie Embree, Roger Fillingim, Fernando Guastaldi, Shruti Handa, Sunil D Kapila, David Keith, Keith L Kirkwood, Phillip Kramer, Katherine T Martucci, Niall P Murphy, Andrea G Nackley, Richard Ohrbach, Benedikt Sagl, Shad B Smith, Feng Tao, Beth Winkelstein, Hai Yao, Simon Young, Michael S Gold

Faculty, Staff and Student Publications

Temporomandibular disorders (TMDs) are complex conditions characterized by orofacial pain and dysfunction, affecting a significant portion of the population. TMDs may involve joint and/or muscle pain, dysfunction (e.g., noise, limited or altered jaw movements), or both, leading to a marked decrease in quality of life. Patients often experience functional limitations that hinder eating, speaking, and daily activities. Additionally, TMDs are frequently associated with psychological distress, including anxiety and depression, which further impacts overall well-being. Despite the profound individual and societal impact of TMDs, effective therapies remain elusive, partly due to deficiencies in translational research. A primary limitation in the TMD …


Bees (Hymenoptera: Anthophila) Of Seasonal Herbaceous Wetlands In Mississippi, Haley Hughes, Katherine A. Parys, Kim T. Huntzinger, Caleb Lankford, Christine Fortuin, J. Brian Davis Sep 2025

Bees (Hymenoptera: Anthophila) Of Seasonal Herbaceous Wetlands In Mississippi, Haley Hughes, Katherine A. Parys, Kim T. Huntzinger, Caleb Lankford, Christine Fortuin, J. Brian Davis

Publications

Seasonal wetlands help meet the biological needs of various autumn migrating and wintering waterfowl species in North America (Reinecke et al. 1989). Management of seasonally flooded impoundments often uses soil and vegetation disturbances and water management to promote early succession plants that produce abundant seeds for foraging birds (Low and Bellrose 1944, Kross et al. 2008). Native bees (Hymenoptera: Anthophila) also occupy these wetland habitats, as they are attracted to a diversity of flowering plants (Stephenson et al. 2018).

The Mississippi Alluvial Valley (MAV) is an alluvial plain and once represented by nearly 10 million ha of bottomland hardwood forests, …


In Vivo Efficacy Of A Broad-Spectrum Antiviral Combination Against Yellow Fever In A Hamster Model, Abbie E. Weight, Hunter Stanger, Robert J. Geraghty, Laurent F. Bonnac, Justin G. Julander Sep 2025

In Vivo Efficacy Of A Broad-Spectrum Antiviral Combination Against Yellow Fever In A Hamster Model, Abbie E. Weight, Hunter Stanger, Robert J. Geraghty, Laurent F. Bonnac, Justin G. Julander

Animal, Dairy, and Veterinary Science Student Research

Yellow fever virus (YFV) recurrently causes severe outbreaks in tropical regions of South America and Africa and an average of 30 to 40 thousand deaths worldwide each year. An effective vaccine is available but the coverage of the population in countries at risk is not optimal. No antivirals are currently approved for YFV treatment. Herein, we describe the evaluation of 6-MMPr, a de-novo-purine-nucleotide biosynthesis inhibitor, as a potentiator for enhanced activity of the broad-spectrum antiviral drug favipiravir in a hamster model of yellow fever. Administration of 6-MMPr was well-tolerated and a combination of favipiravir and 6-MMPr did not cause …


Resolution Of Physics And Deep Learning-Based Protein Engineering Filters: A Case Study With A Lipase For Industrial Substrate Hydrolysis, Spencer Gardiner, Peter Dollinger, Filip Kovacic, Jörge Pietruszka, Daniel Ess, Karl-Erich Jaeger, Gunnar F. Schröder, Dennis Della Corte Sep 2025

Resolution Of Physics And Deep Learning-Based Protein Engineering Filters: A Case Study With A Lipase For Industrial Substrate Hydrolysis, Spencer Gardiner, Peter Dollinger, Filip Kovacic, Jörge Pietruszka, Daniel Ess, Karl-Erich Jaeger, Gunnar F. Schröder, Dennis Della Corte

Faculty Publications

Computational enzyme design remains a powerful yet imperfect tool for optimizing biocatalysts, especially when targeting non-natural substrates. Using design tools we investigated Pseudomonas aeruginosa LipA, a lipase with a flexible lid domain crucial for substrate binding and turnover, aiming to enhance its hydrolysis of the industrially relevant substrate Roche ester. We generated an initial set of single-point mutations based on structural proximity to the active site and evaluated their effects using a computational pipeline integrating molecular dynamics (MD) simulations, density functional theory (DFT) calculations, and ensemble-based energy scoring. While we identified several active variants, attempts to rank them by activity …


Systematics And Phylogeography Of Mundochthonius Chamberlin, 1929, In The Pacific Northwest (Chelicerata, Pseudoscorpiones), Amanda Rai Montoya-Cowan Sep 2025

Systematics And Phylogeography Of Mundochthonius Chamberlin, 1929, In The Pacific Northwest (Chelicerata, Pseudoscorpiones), Amanda Rai Montoya-Cowan

Dissertations and Theses

Understanding the processes that drive genetic divergence and species formation is central to evolutionary biology. Invertebrates with low dispersal ability, such as pseudoscorpions, are especially prone to cryptic diversification due to their occupancy of niche microhabitats and sensitivity to landscape barriers. Despite their ecological roles as predators and bioindicators, pseudoscorpions remain one of the least studied arachnid groups, with limited taxonomic resolution and few integrative studies. This research focuses on the genus Mundochthonius in the Pacific Northwest, particularly M. pacificus, a morphologically conserved species whose true diversity and distribution remain poorly understood.

Field surveys guided by a GIS-based habitat …


Structural Analysis Of Pseudomonas Phage Dev Virion-Associated Rna Polymerase (Gp71), James Scherer Sep 2025

Structural Analysis Of Pseudomonas Phage Dev Virion-Associated Rna Polymerase (Gp71), James Scherer

All ETDs from UAB

DEV is a Pseudomonas aeruginosa bacteriophage part of a newly reclassified genus called Schitoviridae. This group of bacteriophages is also referred to as “N4-like” phages, after the prototypical Escherichia coli phage N4, originally isolated from sewage water in 19661. N4, and other phages in the group, contain a large, virion-associated RNA polymerase (vRNAP). This vRNAP is vital to the proliferation of the phage, as it performs the transcription of the early gene products and potentially acts as a motor that helps eject the viral genome into the host bacteria. In DEV, the vRNAP is also known as gene product 71 …


Infusion Of Blood From Young And Old Mice Modulates Amyloid Pathology, Matias Pizarro, Ruben Gomez-Gutierrez, Ariel Caviedes, Catalina Valdes, Ute Woehlbier, Cristian Vargas, Mauricio Hernandez, Claudia Duran-Aniotz, Rodrigo Morales Sep 2025

Infusion Of Blood From Young And Old Mice Modulates Amyloid Pathology, Matias Pizarro, Ruben Gomez-Gutierrez, Ariel Caviedes, Catalina Valdes, Ute Woehlbier, Cristian Vargas, Mauricio Hernandez, Claudia Duran-Aniotz, Rodrigo Morales

Faculty, Staff and Student Publications

Alzheimer's disease (AD) is a neurodegenerative disease characterized by the accumulation of misfolded proteins in the brain. Recently, the impact of blood components in the progression of this disease has come to attention. This study investigates the effects of infusing blood from young and old wild-type mice into transgenic mice that model AD brain amyloidosis. Impaired memory and Aβ accumulation were observed in mice infused with blood from old donors. A proteomic analysis in the brain of these mice identified alterations in components related to synaptogenesis and the endocannabinoid system. The α2δ2 protein, associated with neuronal calcium regulation, was validated …


Loss Of Ptdss1 In Tumor Cells Improves Immunogenicity And Response To Anti-Pd-1 Therapy, Jielin Liu, Shelley Herbrich, Sreyashi Basu, Yulong Chen, Ashwat Nagarajan, Swetha Anandhan, Sangeeta Goswami, Liangwen Xiong, Baoxiang Guan, Padmanee Sharma Sep 2025

Loss Of Ptdss1 In Tumor Cells Improves Immunogenicity And Response To Anti-Pd-1 Therapy, Jielin Liu, Shelley Herbrich, Sreyashi Basu, Yulong Chen, Ashwat Nagarajan, Swetha Anandhan, Sangeeta Goswami, Liangwen Xiong, Baoxiang Guan, Padmanee Sharma

Faculty, Staff and Student Publications

PTDSS1 (phosphatidylserine synthase 1) encodes an enzyme that facilitates production of phosphatidylserine (PS), which mediates a global immunosuppressive signal. Here, based on in vivo CRISPR screen, we identified PTDSS1 as a target to improve anti-PD-1 therapy. Depletion of Ptdss1 in tumor cells increased expression of interferon-γ (IFN-γ)-regulated genes, including B2m, Cxcl9, Cxcl10, and Stat1, even in the absence of IFN-γ stimulation in vitro. Loss of Ptdss1 in tumor cells also led to increased expression of MHC-I, enhanced cytotoxicity of CD8+ T cells, and increased frequency of an iNOS+ myeloid subset. A gene signature derived from the …


A Novel Sialylation Pathway Mediated By Extracellular Vesicles In Aggressive Prostate Cancer, Camila A. Bach, Md Niamat Hossain, Ishan J. Chaudhari, Cecilia E. Verrillo, Nicole M. Naranjo, Isabella Amoroso, Anna Testa, Samuel Sey, W. Kevin Kelly, Susan L. Bellis, Aurelio Lorico, Ada G. Blidner, Gabriel A. Rabinovich, Lucia R. Languino Sep 2025

A Novel Sialylation Pathway Mediated By Extracellular Vesicles In Aggressive Prostate Cancer, Camila A. Bach, Md Niamat Hossain, Ishan J. Chaudhari, Cecilia E. Verrillo, Nicole M. Naranjo, Isabella Amoroso, Anna Testa, Samuel Sey, W. Kevin Kelly, Susan L. Bellis, Aurelio Lorico, Ada G. Blidner, Gabriel A. Rabinovich, Lucia R. Languino

Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers

Altered cell surface glycosylation is a hallmark of cancer; among aberrant glycan structures, hypersialylated proteins contribute to disease progression. The enzyme ST6 β-galactoside α2,6-sialyltransferase 1 (ST6GAL1) mediates α2,6-linked sialylation of N-glycosylated proteins and is upregulated in many cancers, including prostate cancer (PrCa). We propose that ST6GAL1 may be released by cancer cells in small extracellular vesicles (sEVs) in the PrCa tumor microenvironment to potentially modulate cell surface sialylation in recipient cells. We isolated sEVs from PrCa cells by density gradient separation and characterized them by nanoparticle tracking analysis using ZetaView and immunoblotting analysis. We identified ST6GAL1 in both its membrane-bound …


The Value Of Play In Improving Children’S Experiences With Healthcare, Kylie Howes Sep 2025

The Value Of Play In Improving Children’S Experiences With Healthcare, Kylie Howes

Family Perspectives

Hospitalization can be a distressing experience for children, often resulting in heightened anxiety and pain due to unfamiliar environments, procedures, and personnel. This literature review examines the effectiveness of Child Life Play Interventions—specifically Developmentally Supportive Play, Psychological Preparation Play, and Distraction Play—in reducing pediatric patients’ healthcare- related anxiety and pain. Developmentally supportive play provides children with familiar, age-appropriate activities that help maintain normalcy and routine, thereby reducing stress during extended hospital stays. Psychological preparation play uses role-playing and hands-on demonstrations to enhance children’s understanding of medical procedures, alleviating anxiety and decreasing perceived pain. Distraction play shifts children’s attention away from …


Marital Conflict And Male Depression: The Role Of Emotional Withdrawal And Hostility, Nicolas Enzo Mouhsen Sep 2025

Marital Conflict And Male Depression: The Role Of Emotional Withdrawal And Hostility, Nicolas Enzo Mouhsen

Family Perspectives

This literature review investigates the relationship between marital conflict and male depression, focusing on emotional withdrawal and spousal hostility as key contributing factors. Male depression, often underreported due to differences in symptom expression such as anger and irritability, is explored in the context of marital dynamics. Emotional withdrawal, characterized by avoidance behaviors during conflict, is particularly prevalent among men and linked to rigid gender role perceptions. This behavior correlates with increased depressive symptoms and reduced well-being. Additionally, spousal hostility, including verbal aggression and criticism, exacerbates male depression through both the perception of aggression from a partner and self-awareness of hostile …


Divorced After Age 50: What Gray Divorced Women Can Do To Move Forward, Sheri Duvall Sep 2025

Divorced After Age 50: What Gray Divorced Women Can Do To Move Forward, Sheri Duvall

Family Perspectives

No abstract provided.


The Benefits Of Combining Center-Based And Home-Based Care For Preschool Children, Savannah Christensen Sep 2025

The Benefits Of Combining Center-Based And Home-Based Care For Preschool Children, Savannah Christensen

Family Perspectives

Abstract: Research shows that the quality of care children receive in early childhood—whether from a parent, relative, or formal child care provider—significantly influences their cognitive, behavioral, and emotional development. This article analyzes several peer-reviewed sources to examine how different caregiving environments impact development and how these effects are moderated by the quality of care and the home environment. It also addresses how socioeconomic status can shape the quality of care children receive and the long-term outcomes associated with each caregiving type. While parents are typically seen as the ideal caregivers, children in nonparental care, such as with relatives or in …


Breath Acetone As A Biomarker For Concussion, Allyn Abadie Sep 2025

Breath Acetone As A Biomarker For Concussion, Allyn Abadie

All ETDs from UAB

Concussions represent a critical public health concern, affecting millions annually yet remain challenging to diagnose and manage. Concussions involve a range of often invisible signs and symptoms. Traditional assessments rely heavily on subjective symptom reporting, with limited objective data which may complicate return-to-play decisions. Objective physiological biomarkers are needed to complement traditional methods, detect subtle disruptions, and improve decision-making. Following concussion, the brain undergoes a neurometabolic cascade involving disrupted glucose utilization, ionic imbalances, neurotransmitter release, and reduced cerebral blood flow. This cascade creates a metabolic crisis, potentially shifting energy metabolism toward alternative substrates such as ketones. Breath acetone, a measurable …


The Role Of Histone Deacetylase Complexes In Cardiomyocyes And Heart Diseases, Meimei Wang Sep 2025

The Role Of Histone Deacetylase Complexes In Cardiomyocyes And Heart Diseases, Meimei Wang

All ETDs from UAB

Histone deacetylase complexes play pivotal roles in cardiac biology, however their specific functions in cell fate transitions and adult heart maintenance re-main unclear. We identified the role of HDAC complex in vitro during direct cardiac repro-gramming and in vivo through specific cardiomyocyte deletion of ELMSAN1, a core component of the MiDAC complex. We perform direct cardiac reprogram-ming using a polycistronic construct (hMGT133) expressing MEF2C, GATA4, TBX5, and miR-133. MEF2C expression peaked early, while cardiac markers such as cardiac troponin and α-actinin emerged by Day 9. HDAC1 levels and global histone acetylation (H3K9ac, H3K14ac, H3K27ac) declined over time. An RNAi screen …


The Role Of The Glycerol Metabolism Regulator Glpr On Pseudomonas Aeruginosa’S Physiology, Nicholas Jordan Evans Sep 2025

The Role Of The Glycerol Metabolism Regulator Glpr On Pseudomonas Aeruginosa’S Physiology, Nicholas Jordan Evans

All ETDs from UAB

Chronic infections with Pseudomonas aeruginosa are a leading cause of morbidity and mortality in people with cystic fibrosis. P. aeruginosa persists in the CF lung through adaptations, including altering the expression of metabolic genes to acquire nutrients that are abundant in the CF airway. Glycerol in the airway is imported and metabolized by proteins encoded in the glp regulon, which is regulated in part by GlpR. The loss of GlpR was previously shown to increase biofilm development in a P. aeruginosa CF isolate compared to a wound isolate. In the first half of this work, we investigated the influence that …


Air Pollution And Environmental Injustice Are Related To Respiratory Complications In Individuals With Sickle Cell Disease, Kelsey M. Maclin Sep 2025

Air Pollution And Environmental Injustice Are Related To Respiratory Complications In Individuals With Sickle Cell Disease, Kelsey M. Maclin

All ETDs from UAB

Sickle cell disease (SCD) is a genetically inherited blood disorder affecting people of African descent. SCD is characterized by painful episodes and an acute lung injury known as acute chest syndrome (ACS). Patients with SCD have a life expectancy <19 years compared to Blacks without SCD. There is minimal research investigating air pollution and health complications in SCD. The aims of this research were to investigate whether pulmonary function is affected by exposure to ambient air pollution, whether higher air pollution concentrations are associated with hospitalizations for ACS, and whether environmental injustice impacts the respiratory health of children and young adults with SCD. Air pollution data on the criteria air pollutants (CAPs) was obtained from the US Environmental Protection Agency (EPA). Patient health data were obtained from Children’s Hospital of Alabama electronic medical records. Logistic regression, distributed lag non-linear regression, Granger Causality, and Getis-Ord Gi* hot spot analysis were used to analyze our data. The EPA’s EJScreen tool was used as a measure of exposure to environmental injustice. ArcGIS was used to map the EJScreen data. Exposure to short-term air pollution is significantly associated with a reduction in pulmonary function in children and young adults with SCD. Children and young adults exposed to a one-unit increase in the monthly average concentrations of sulfur dioxide (SO2) experienced an increase in the odds of having abnormal pulmonary function. We observed the trends of each criteria air pollutant in our study to be closely aligned with the trends in the hospitalizations for ACS. Most of our study participants with a history of ACS lived in areas burdened by greater environmental injustices. Specifically, the hot spots for ACS overlapped with the hot spots for PM2.5. Unequal exposure to environmental injustices leads to increases in hospitalizations for respiratory complications in individuals with SCD. Reductions in air pollution could be greatly beneficial to the pulmonary function and overall respiratory health of individuals with SCD. Further research is needed to examine associations between air pollution and hospitalizations for ACS in individuals with SCD.


The Hepatic Glucagon Receptor As A Novel Regulator Of Lifespan, Alexander Tate Lasher Sep 2025

The Hepatic Glucagon Receptor As A Novel Regulator Of Lifespan, Alexander Tate Lasher

All ETDs from UAB

In developed nations the average lifespan has nearly doubled over the last 200 years, and the proportion of humans living into old age is ever increasing. While this is certainly a testament to the effectiveness of modern medicine and infrastructure, it presents a unique challenge to public health. Gains to health have not necessarily kept pace with the gains in lifespan, and the expanding aged population positions age-associated diseases to reach unprecedented prevalence. In light of this challenge, a mechanistic understanding of the aging process is necessary to identify factors that control longevity and to ultimately develop strategies for healthy …


Interactions Between Staphylococcus Aureus And Corynebacterium Species In The Context Of Chronic Rhinosinusitis, Joshua Tucker Huffines Sep 2025

Interactions Between Staphylococcus Aureus And Corynebacterium Species In The Context Of Chronic Rhinosinusitis, Joshua Tucker Huffines

All ETDs from UAB

Chronic rhinosinusitis (CRS) is a complex inflammatory disease affecting the upper respiratory tract (URT) for a large portion of the populace, leading to significant economic burdens. Staphylococcus aureus is considered as a significant contributor to CRS inflammation through the production of toxins regulated through quorum sensing (QS). Microbiome studies have characterized the microbial communities present in the healthy URT and in CRS. These studies show that the genus Corynebacterium is associated with the healthy URT, decreased in CRS, and has a negative correlation with S. aureus regardless of health status. A few studies have partially characterized a mechanism to explain …


The Colonic Crypt: Cellular Dynamics And Signaling Pathways In Homeostasis And Cancer, Anh L. Nguyen, Molly A. Lausten, Bruce M. Boman Sep 2025

The Colonic Crypt: Cellular Dynamics And Signaling Pathways In Homeostasis And Cancer, Anh L. Nguyen, Molly A. Lausten, Bruce M. Boman

College of Life Sciences Faculty Papers

The goal of this review is to expand our understanding of how the cellular organization of the normal colonic crypt is maintained and elucidate how this intricate architecture is disrupted during tumorigenesis. Additionally, it will focus on implications for new therapeutic strategies targeting Epithelial-Mesenchymal Transition (EMT). The colonic crypt is a highly structured epithelial unit that functions in maintaining homeostasis through a complex physiological function of diverse cell types: SCs, transit-amplifying (TA) progenitors, goblet cells, absorptive colonocytes, Paneth-like cells, M cells, tuft cells, and enteroendocrine cells. These cellular subpopulations are spatially organized and regulated by multiple crucial signaling pathways, including …


Mechanistic Rationale For Toxic Aerosol Formation From Vaping And Dabbing With A Focus On Ketene Formation From Semi-Synthetic Cannabinoids, Kaelas Ryan Munger Sep 2025

Mechanistic Rationale For Toxic Aerosol Formation From Vaping And Dabbing With A Focus On Ketene Formation From Semi-Synthetic Cannabinoids, Kaelas Ryan Munger

Dissertations and Theses

Cannabis vaping is a relatively new route of administration that is increasingly common among youth and young adults. Cannabis vaping has been associated with cases of acute lung injury, especially among youth, and most often involves the heating and aerosolization of high-potency products having cannabinoid concentrations of ~ 50 % - 98 % w/w. Proponents argue that vaping is safer than smoking due to the characteristically lower temperatures and fewer plant materials. However, the extreme cannabinoid concentrations, along with non-natural formulations having undisclosed additives, require studies of the health effects of these products. Despite the popularity of cannabis concentrate vaping, …