The Importance Of Solution Studies For The Structural Characterization Of The Enterovirus 5' Cloverleaf,
2025
Old Dominion University
The Importance Of Solution Studies For The Structural Characterization Of The Enterovirus 5' Cloverleaf, Morgan G. Daniels, Meagan E. Werner, Xiaobing Zuo, Steven M. Pascal
Chemistry & Biochemistry Faculty Publications
Enteroviruses initiate genomic replication via a highly conserved mechanism that is controlled by an RNA platform, also known as the 5' cloverleaf (5'CL). Here, we present a biophysical analysis of the 5'CL conformation of three enterovirus serotypes under various ionic conditions, utilizing CD spectroscopy, size-exclusion chromatography, and small-angle X-ray scattering. In general, a tendency toward a smaller monomeric hydrodynamic radius in the presence of salts was observed, but the exact structural signature of each 5'CL varied depending upon the serotype. Rhinovirus B14 (RVB14) exhibited at least two monomeric conformations and a low propensity for dimerization, while poliovirus 1 (PV1) showed …
Genetic Property Rhetoric And The Public Domain,
2025
Emory University School of Law
Genetic Property Rhetoric And The Public Domain, David Fagundes
Faculty Articles
Among the many themes that illuminate Jorge Contreras’s The Genome Defense, this Essay focuses on property. It considers the rhetorical role played by property in convincing both courts and the public that patenting genetic data was legally and ethically objectionable. This Essay begins by locating property—and public property—as a major theme in the dialogue surrounding the Myriad litigation. It then situates this rhetorical move in the context of property-talk generally, highlighting the distinctiveness of leveraging public rather than private ownership as a means of accessing moral intuitions. Finally, this Essay reflects on what the use of public property rhetoric …
Anthropocene Genetic Diversity Loss In The Marine Tropics,
2025
Drexel University
Anthropocene Genetic Diversity Loss In The Marine Tropics, René D. Clark, Brendan N. Reid, Eric Garcia, Marial Malabag, Robin S. Waples, Rene A. Abesamis, Jemelyn Grace P. Baldisimo, Abner A. Bucol, Kyra S. Fitz, Sharon F. Magnuson, Richard N. Muallil, Cleto L. Nanola Jr., Roy Roberts, John C. Whalen, Christopher E. Bird, Kent E. Carpenter, Malin L. Pinsky
Biological Sciences Faculty Publications
Genetic diversity is a crucial component of biodiversity, and as such, its maintenance and preservation is of high conservation concern. Tropical environments are undergoing intense rates of environmental change, and these changes may be driving large declines in genetic diversity. However, data on genetic diversity are highly skewed towards temperate regions. The degree to which diversity loss has occurred in tropical species, particularly marine species, remains an open and important question. Here, we directly compare genomic data from modern and museum collections of two commercially-harvested nearshore marine fishes (Equulites laterofenestra and Gazza minuta) gathered from a single location …
Lap-Hsp60 Complex Modulates Epithelial Tight Junction Barrier,
2025
Purdue University West Lafayette
Lap-Hsp60 Complex Modulates Epithelial Tight Junction Barrier, Arun Bhunia, Manalee Manalee Samaddar, Chen Sun, Nicholas Gallina, Nicole Irizarry-Tardi, Donqi Liu, Shivendra Tenguria, Rishi Drolia, Anika Jain, Daisuke Kihara, Wen Jiang, Kee-Hong Kim, Abigail Cox, Kurt Ristroph, Gregory Knipp, Nicholas Noinaj
Biological Sciences Faculty Publications
During infection, Listeria adhesion protein (LAP), a housekeeping enzyme, acts as a tight junction modulator (TJM) through interaction with Hsp60 to facilitate Listeria monocytogenes translocation across the intestinal epithelial barrier. Here, we used purified LAP as a potential TJM to overcome the limiting and variable effects observed by other agents in the class. We structurally determined the LAP interaction alone and in complex with Hsp60 utilizing cryo-EM and computational analysis. LAP structure resolved at 2.83 Å, forms multimeric interlocking dimers and tetramers, and the N-domain interacts with Hsp60, while the C-domain bridges the bacterial surface receptor InlB. The structural studies …
Mobula, Bioinspiration, Filter Feeding, Form And Function,
2025
California State University Fullerton
Mobula, Bioinspiration, Filter Feeding, Form And Function, J. B. Teeple, S. R. Kahane-Rapport, K. E. Cohen, L. Hamann, J. A. Strother, E. W.M. Paig-Tran
Biological Sciences Faculty Publications
Mobulas (manta and devil rays) are large-scale ram filter feeders that separate planktonic food particles from large volumes of water with minimal clogging. This contrasts with most human-made filters that can suffer from problematic clogging requiring additional mechanisms for clearing blocked surfaces and maintaining performance. Prior studies have shown that mobulas employ a unique mechanism referred to as ricochet separation to filter feed, whereby captive vortices in filter pores cause particles to bounce off the filter surfaces and away from the filter pores. This mechanism enables the filtration of particles smaller than the pore size and reduced clogging. However, few …
Multi-Locas Gwas Mapping And Candidate Gene Analysis Of Anticancer Peptide Lunasin In Soybean (Glycine Max L. Merr),
2025
Fayetteville State University
Multi-Locas Gwas Mapping And Candidate Gene Analysis Of Anticancer Peptide Lunasin In Soybean (Glycine Max L. Merr), Rikki Locklear, Jennifer Kusumah, Layla Rashad, Felicia Lugaro, Sonia Viera, Nathan Kipyego, Faith Kipkosgei, Daisy Jerop, Shirley Jacquet, Mythy Addelmajid Kassem, Jiazheng Yuan, Elvira De Mejia, Rouf Mian
Biological Sciences Faculty Publications
Soybean (Glycine max) peptide lunasin exhibits significant cancer-preventive, antioxidant, and hypocholesterolemic effects. This study aimed to identify quantitative trait nucleotides (QTNs) associated with lunasin content and to annotate the candidate genes in the soybean genome. The mapping panel of 144 accessions was gathered from the USDA Soybean Germplasm Collection, encompassing diverse geographical origins and genetic backgrounds, and was genotyped using SoySNP50K iSelect Beadchips. The lunasin content in soybean seeds was measured using the enzyme-linked immunosorbent assay (ELISA) method, with lipid-adjusted soybean flour prepared from seeds obtained from the Germplasm Resource Information Network (GRIN) of USDA-ARS in 2003 and …
Chronic Alcohol Consumption Induces Phenotypic And Functional Alterations Consistent With A Hyper-Inflammatory State In Peripheral Blood Mononuclear Cell-Derived Microglia In A Rhesus Macaque Model,
2025
University of Kentucky
Chronic Alcohol Consumption Induces Phenotypic And Functional Alterations Consistent With A Hyper-Inflammatory State In Peripheral Blood Mononuclear Cell-Derived Microglia In A Rhesus Macaque Model, Hami Hemati, Madison B. Blanton, Heather E. True, Jude Koura, Rupak Khadka, Kathleen A. Grant, Ilhem Messaoudi
Microbiology, Immunology, and Molecular Genetics Faculty Publications
Alcohol-induced dysregulation of microglial activity is associated with neuroinflammation, cognitive decline, heightened risk for neurodegenerative diseases, alcohol dependence, and escalation of alcohol drinking. Given the challenge of longitudinally sampling primary microglia, we optimized an in vitro method to differentiate peripheral blood mononuclear cells (PBMC) from rhesus macaque (RM) into induced microglia-like cells (RM-iMGLs). The RM-iMGLs displayed transcriptional profiles distinct from monocyte progenitors and closely resembling primary microglia. Notably, morphological features showed that differentiated RM-iMGLs derived from subjects with chronic alcohol consumption (CAC), while bigger, exhibited a bipolar-like morphology. Additionally, dysregulation in key inflammatory and regulatory markers, along with increased baseline …
Investigating The Role Of Dynamic Signaling Of Nrg3-Erbb4 In The Prefrontal Cortex In Mediating Nicotine Withdrawal Phenotypes,
2025
University of Kentucky
Investigating The Role Of Dynamic Signaling Of Nrg3-Erbb4 In The Prefrontal Cortex In Mediating Nicotine Withdrawal Phenotypes, Emily Prantzalos
Theses and Dissertations--Pharmacy
While several pharmacotherapies are currently available for nicotine use disorder (NUD), smoking cessation success rates remain below 10% each year. The molecular mechanisms underlying failed quit attempts continue to represent a critical gap in our knowledge. However, recent advances in understanding the genetic contributions to nicotine dependence offer a promising avenue for developing more effective cessation therapies. Prior research has identified genetic variation in Neuregulin 3 (Nrg3) and its cognate receptor ErbB4 as potential contributors to affective nicotine withdrawal (WD) phenotypes and cessation outcomes. Therefore, this dissertation aims to systematically investigate the region-specific, functional role of the Neuregulin Signaling Pathway …
Role Of Chemotype In Aggressiveness, Toxicity, And Competitive-Ness Of Fusarium Graminearum On Wheat,
2025
University of Kentucky
Role Of Chemotype In Aggressiveness, Toxicity, And Competitive-Ness Of Fusarium Graminearum On Wheat, Simran Goyal
Theses and Dissertations--Plant Pathology
Fusarium Head Blight (FHB) of wheat, caused by the fungus Fusarium graminearum, is a devastating disease that led to epidemics in the U.S. during the 1990s, resulting in economic losses exceeding $2.6 billion. Typical symptoms include bleached spikelets and shriveled grains, often contaminated with trichothecene mycotoxins that make them unsafe for food or feed. FHB severity and mycotoxin production are influenced by a complex interplay between host genotype, environmental factors, and pathogen genotype. Integrated management practices that include the use of more resistant cultivars, crop rotation, and fungicide applications help to reduce disease incidence and severity. Disease forecasting models …
A Non-Toxic Analgesic Elicits Cell-Specific Genomic And Epigenomic Modulation By Targeting The Pag Brain Region,
2025
LSU Health Sciences Center - New Orleans
A Non-Toxic Analgesic Elicits Cell-Specific Genomic And Epigenomic Modulation By Targeting The Pag Brain Region, Hernan A. Bazan, Brian L. Giles, Surjyadipta Bhattacharjee, Scott Edwards, Nicolas G. Bazan
School of Medicine Faculty Publications
Acetaminophen (ApAP) is widely used for pain management, but overuse or overdose leads to hepatotoxicity, making it the leading cause of acute liver failure globally. There is an urgent need for safer pain medications, as other non-opioid analgesics like non-steroidal anti-inflammatory drugs (NSAIDs) are nephrotoxic. We have identified SRP-001 as a safer, non-hepatotoxic, novel analgesic that overcomes ApAP's limitations by avoiding NAPQI formation and preserving hepatic tight junctions. Using coupled RNA and ATAC sequencing, from the periaqueductal gray (PAG) midbrain region, we compared the genetic and epigenetic signatures of SRP-001 and ApAP treatments following complete Freund's adjuvant (CFA)-induced inflammatory pain …
Impact Of Obesity On The Gut Microbiome And Inflammatory Markers During Siv Infection And Antiretroviral Therapy,
2025
Oregon National Primate Research Center
Impact Of Obesity On The Gut Microbiome And Inflammatory Markers During Siv Infection And Antiretroviral Therapy, Casey M. Mcguire, Isaac R. Cinco, Diana Takahashi, Kristin A. Sauter, Melissa Kirigiti, Ilhem Messaoudi, Jonah B. Sacha, Charles T. Roberts, Paul Kievit
Microbiology, Immunology, and Molecular Genetics Faculty Publications
Dysbiosis and impaired gut barrier integrity contribute to chronic immune activation associated with both obesity and HIV infection. Given the increased incidence of obesity in people living with HIV, we explored the impact of obesity on the gut microbiome and microbial translocation (MT) biomarkers during HIV infection and antiretroviral therapy (ART). Lean and obese rhesus macaques were infected with simian immunodeficiency virus (SIV) and subsequently treated with ART. Obese animals exhibited higher initial MT and inflammation biomarkers that remained constant throughout the study, while lean animals exhibited significant increases in these biomarkers that approached levels observed in obese animals. Lean …
‘Who’S Your Daddy?’: Ddradseq Parentage In Broodstock-Offspring Pairs Of Diadema Antillarum In A Population Restoration Initiative,
2025
University of Central Florida
‘Who’S Your Daddy?’: Ddradseq Parentage In Broodstock-Offspring Pairs Of Diadema Antillarum In A Population Restoration Initiative, Bianca R. Rosendahl
Undergraduate Scholarship and Creative Works
In the early 1980s Diadema antillarum, or the long-spined urchin, was hit by a catastrophic mass mortality event across the western Atlantic and Gulf of Mexico, inclusive of the Florida Keys. The cause of this die-off event was likely triggered by a pathogen or environmental stressor that decimated native populations by up to 98%. The species has not yet fully recovered and is struggling with recruitment success which is why it may benefit from an ex-situ recovery program. In this study, I used single nucleotide polymorphisms (SNPs) to identify genetic variation and analyze parentage in a captive population of …
Karyotyping As A Method To Verify Phylogenetic Relationships Among The Enneacanthus Species,
2025
Lehman College City University of New York
Karyotyping As A Method To Verify Phylogenetic Relationships Among The Enneacanthus Species, Ophelia A. Anderson
Theses and Dissertations
The Enneacanthus genus consists of three species of freshwater fish endemic to eastern North America: E. obesus (Banded Sunfish), E. gloriosus (Blue Spotted Sunfish), and E. chaetodon (Black Banded Sunfish). Previous studies using molecular data suggest that E. obesus and E. gloriosus are more closely related, with E. chaetodon as the most distantly related species in the genus. This study investigates the phylogenetic relationship among the Enneacanthus species, using karyotype characteristics - chromosome number, morphology and fundamental number - as comparative metrics. Chromosome spreads were obtained from scale and gill epithelium samples collected between 1993 and 1994. Prepared slides …
Exploring The Role Of Transcription Factor Nrf1 In Autophagy And Inhibiting The Nrf1 Bounce-Back Response,
2025
Virginia Commonwealth University
Exploring The Role Of Transcription Factor Nrf1 In Autophagy And Inhibiting The Nrf1 Bounce-Back Response, Madison A. Ward
Theses and Dissertations
Cells exposed to proteotoxic stress invoke adaptive responses aimed at restoring proteostasis. Our previous studies have established a firm role for the transcription factor Nuclear factor-erythroid derived-2-related factor-1 (Nrf1) in responding to proteotoxic stress elicited by inhibition of cellular proteasome. Following proteasome inhibition, Nrf1 mediates the synthesis of new proteasomes, thus enabling cells to mitigate proteotoxic stress. Here, we report that under similar circumstances, multiple components of the autophagy-lysosomal pathway (ALP) were transcriptionally upregulated in an Nrf1-dependent fashion, thus providing the cells with an additional route to cope with proteasome insufficiency. In response to proteasome inhibitors, Nrf1-deficient cells exhibited profound …
Intracellular Survival Of Staphylococcus Aureus In Macrophages During Osteomyelitis,
2025
University of Kentucky
Intracellular Survival Of Staphylococcus Aureus In Macrophages During Osteomyelitis, William A. Lathram, Christopher D. Radka
Microbiology, Immunology, and Molecular Genetics Faculty Publications
Staphylococcus aureus, traditionally viewed as an extracellular pathogen, is increasingly recognized for its ability to persist intracellularly, particularly within macrophages. This intracellular lifestyle is central to osteomyelitis, a chronic bone infection characterized by persistent inflammation, bone destruction, and impaired repair. Within bone, S. aureus exploits macrophage plasticity by driving a shift from pro-inflammatory, bactericidal M1-like states to anti-inflammatory, tissue-reparative M2-like phenotypes. This polarization suppresses immune clearance and promotes an environment conducive to bacterial survival and dissemination. Additional strategies – including biofilm formation, small colony variants, and inhibition of phagolysosomal killing – further enhance persistence and immune evasion. While these …
Impacts Of Multiple Coastal Stressors Across Life-History Stages In The Eastern Oyster,
2025
University of Rhode Island
Impacts Of Multiple Coastal Stressors Across Life-History Stages In The Eastern Oyster, Amaelia Zyck
Open Access Dissertations
Urbanized estuaries are characterized as a complex of biotic and abiotic stressors, which currently challenge marine life and are expected to intensify and become increasingly unpredictable under the ongoing impacts of climate change. The persistence of coastal species that inhabit these stressful environments will ultimately depend on their ability to adapt. Many of these species have complex life cycles, featuring distinct morphological and physiological developmental stages that can exhibit unique responses to environmental pressures. However, since all stages share the same genome, selective pressures acting on one stage can have cascading effects throughout the life cycle. The larval stage, being …
From Sequencing To Conservation: Genomic Analysis Of Three Sportfish Species In West Virginia,
2025
West Virginia University
From Sequencing To Conservation: Genomic Analysis Of Three Sportfish Species In West Virginia, Andrew Johnson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Situated in the Appalachian Mountains, one of the oldest mountain ranges on Earth, West Virginia waters boast rich ichthyofauna including native sportfish species walleye (Sander vitreus), largemouth bass (Micropterus nigricans), and muskellunge (Esox masquinongy). These three species are all native to the contemporary Ohio River watershed and play a major recreational and ecological role in local fisheries. Ecologically, all three species are apex predators and play a key role in ecosystems by directly influencing local fish assemblages. As dominant apex predators all three species are highly sought after in recreational fisheries with largemouth bass …
Using Genetically Heterogenous Mice To Identify Regulators Of Immune Checkpoint Blockade Response,
2025
Wayne State University
Using Genetically Heterogenous Mice To Identify Regulators Of Immune Checkpoint Blockade Response, Justin Hackett
Wayne State University Dissertations
Immune Checkpoint Inhibitors (ICI) have dramatically improved patient outcomes in metastatic lung cancer, metastatic melanoma, subtypes of renal cancer and others. However, despite the clinical success, most patients still fail to have a durable response. Understanding what determines response and predicting who will respond to therapy is essential to improving patient outcomes. To investigate genetic underpinnings of ICI response we utilized F1 crosses of C57Bl/6 with Diversity Outbred mice (DOB6F1) and multiple Collaborative Cross (CC) strains to identify and validate (respectively) genetic loci that associated with response to ICI. The genomic data suggested that the lactation and immunomodulatory peptide prolactin …
Assessing Genetic Diversity And Population Structure In The Imperiled Aconitum Reclinatum (White Monkshood), An Endemic Wildflower Of Central Appalachia,
2025
Bucknell University
Assessing Genetic Diversity And Population Structure In The Imperiled Aconitum Reclinatum (White Monkshood), An Endemic Wildflower Of Central Appalachia, Diamanda A. Zizis
Master’s Theses
Aconitum reclinatum, white monkshood (Ranunculaceae), is a Pennsylvania critically imperiled plant species found in five states of the Appalachian region of the United States: Pennsylvania, West Virginia, Virginia, North Carolina, and Tennessee. This plant is adapted to cool, moist environments but faces threats from increasing habitat loss, deer browse, logging, and changes in rainfall and temperature associated with climate change. Comprehensive knowledge of A. reclinatum genetic population structure remains limited. To address this, we collaborated with Natural Heritage programs within the range of A. reclinatum to sample populations across the species distribution and generate a genotyping-by-sequencing data set of …
Codon Composition In Human Oocyters Reveals Age-Associated Defects In Mrna Decay,
2025
Macon & Joan Brock Virginia Health Sciences at Old Dominion University
Codon Composition In Human Oocyters Reveals Age-Associated Defects In Mrna Decay, Pavla Brachova, Lane K. Christenson, Nehemiah S. Alvarez
Department of Biomedical and Translational Sciences Faculty Publications
Oocytes from women of advanced reproductive age exhibit diminished developmental potential, but the underlying mechanisms remain incompletely defined. Oocyte maturation depends on translational control of maternal mRNA synthesized during growth. We performed a computational analysis on human oocytes from women < 30 versus ≥40 years and observed that mRNA GC content correlates negatively with half-life in oocytes from young (< 30 yr) but positively with oocytes from aged (>40 yr) women. In young oocytes, longer mRNA half-life is associated with lower protein abundance, whereas in aged oocytes GC content correlates positively with protein abundance. During the GV-to-MII transition, codon composition stratifies stability: codons that support rapid translation (optimal) stabilize mRNA, while slow-translating codons (non-optimal) promote decay. With reproductive aging, GC-containing codons become more optimal and align with increased …
