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Integrating Network Analysis And Experimental Validation To Reveal The Ferroptosis-Associated Mechanism Of Velvet Antler In The Treatment Of Chronic Atrophic Gastritis, Quan Liao, Zhenzhen Guo, Chenchun Ding, Renjie Zuo, Guoyan Liu Jun 2025

Integrating Network Analysis And Experimental Validation To Reveal The Ferroptosis-Associated Mechanism Of Velvet Antler In The Treatment Of Chronic Atrophic Gastritis, Quan Liao, Zhenzhen Guo, Chenchun Ding, Renjie Zuo, Guoyan Liu

Journal of Food and Drug Analysis

Chronic atrophic gastritis (CAG) is precancerosis with limited treatment options. This study investigated the therapeutic effects of velvet antler (VA), a traditional natural medicine, on CAG, with a focus on ferroptosis. In vivo experiments demonstrated the efficacy of VA in alleviating CAG, and network pharmacology analysis revealed its involvement in related terms, including inflammation, oxidative stress, and cell proliferation. Analyses further confirmed the modulation of ferroptosis by VA, particularly via the Keap1-Nrf2/HO-1/GPX4 pathway. In vitro assays supported these findings, demonstrating the ability of VA to reduce methylnitronitrosoguanidine-induced inflammation, oxidative stress, and ferroptosis in GES-1. This study provides a basis for …


Jiao San Xian Granule Containing Prebiotic Alleviate Functional Dyspepsia By Regulating Intestinal Flora And The Secretion Of Inflammatory Response, Huimin Pei, Mengyuan Zhao, Hongyue Wang, Xindi Zhang, Caihong Shi, Xiangrong Zhang Jun 2025

Jiao San Xian Granule Containing Prebiotic Alleviate Functional Dyspepsia By Regulating Intestinal Flora And The Secretion Of Inflammatory Response, Huimin Pei, Mengyuan Zhao, Hongyue Wang, Xindi Zhang, Caihong Shi, Xiangrong Zhang

Journal of Food and Drug Analysis

Jiao Sanxian (JSX) consists of three traditional Chinese medicine including charred hawthorn, malt and Liu Shen Qu, they are also from Chinese medicine homologous food. It is commonly used to relieve functional dyspepsia (FD). The present study aims to explore the mechanism of JSX (granule), with the addition of prebiotics for the treatment of FD using mice model. The network pharmacology and molecular docking were used to forecast therapeutic targets for JSX. Based on the protein-protein interaction (PPI) results, thirteen targets exhibited strong interactions with each other. The results of network pharmacology and molecular docking revealed therapeutic activity of JSX …


Regulatory Framework And Challenges For Live Biotherapeutic Products In Taiwan, Shirley Pan, Jia-Chuan Hsu, Kuo-Teng Hung, Ching-Jung Ho Jun 2025

Regulatory Framework And Challenges For Live Biotherapeutic Products In Taiwan, Shirley Pan, Jia-Chuan Hsu, Kuo-Teng Hung, Ching-Jung Ho

Journal of Food and Drug Analysis

Products containing live microorganisms may be classified as food or drugs depending on their intended use; live biotherapeutic products (LBPs) with therapeutic claims are defined as medicinal products containing live bacteria or yeasts intended to prevent or treat disease. Based on their characteristics, LBPs are classified as biological drugs and must be registered as biological drugs before they can enter the Taiwanese market. As research into the microbiota and its role in health and disease continues to advance, LBPs are expected to play an increasingly important role in medicine and biotechnology. With the growing popularity of microbial applications in recent …


Aspergillosis: A Comprehensive Review Of Pathogenesis, Drug Resistance, And Emerging Therapeutics, Amanpreet Singh, Jeewanjot Singh, Sandeep Kumar Jun 2025

Aspergillosis: A Comprehensive Review Of Pathogenesis, Drug Resistance, And Emerging Therapeutics, Amanpreet Singh, Jeewanjot Singh, Sandeep Kumar

Journal of Food and Drug Analysis

Aspergillosis stands as a primary opportunistic fungal infection which mainly results from Aspergillus fumigatus events that have gained more importance because of its multiple infection patterns and developing antifungal resistance. Healthcare providers identify two main ends of the aspergillosis spectrum which include allergic responses and invasive systemic infections that affect mainly immunocompromised subjects. This review presents a detailed summary for understanding the epidemiology of aspergillosis along with its risk factors as well as pathogenesis and host immune response and diagnostic difficulties. The analysis puts significant weight on increasing azole and echinocandin resistance that has become worse because of agricultural and …


Murine Tbk1 Regulates Mpp3-Type Hspcs And Circulating Leukocytes In Normal Hematopoiesis And Flt3+ Lscs In Mll-Af9-Driven Leukemia, Austin P. Runde, Joseph Cannova, Ryan Mack, Kanak Joshi, Mark Sellin, Rohit Thalla, Allan Youmaran, Mattias Lenz, Peter Breslin, Wei Wei, Jiwang Zhang Jun 2025

Murine Tbk1 Regulates Mpp3-Type Hspcs And Circulating Leukocytes In Normal Hematopoiesis And Flt3+ Lscs In Mll-Af9-Driven Leukemia, Austin P. Runde, Joseph Cannova, Ryan Mack, Kanak Joshi, Mark Sellin, Rohit Thalla, Allan Youmaran, Mattias Lenz, Peter Breslin, Wei Wei, Jiwang Zhang

School of Medicine

BACKGROUND: Acute myeloid leukemia (AML) is an aggressive hematologic cancer with a notoriously bleak prognosis; for non-M3 AML, the overall 5-year survival rate is ∼30%. While 60-70% of newly diagnosed AML patients will achieve complete remission (CR), half of these patients will experience relapse (secondary resistance) by three years from their diagnosis. Moreover, 30-40% of AML patients present with refractory disease (primary resistance) and cannot respond to frontline treatments. Leukemia stem cells (LSCs) are implicated in both primary and secondary resistance, and their eradication is necessary to maintain CR. LSCs have unique transcriptomes and immunophenotypes, thus can be identified relatively …


Photochemistry Of Quinones And Combustion-Derived Particles, Desiree J. Sarmiento Jun 2025

Photochemistry Of Quinones And Combustion-Derived Particles, Desiree J. Sarmiento

Electronic Theses and Dissertations

Quinones are ubiquitous species that can be produced from the photochemical aging of combustion-derived particles (CDPs). Polycyclic aromatic hydrocarbons (PAHs) are a major component of CDPs and are precursors to quinones and other oxidized products (OPAHs). My work first expanded on the PAH and OPAH photochemistry research of Dr. John Haynes, who showed that anthracene (ANT) oxidizes into 1,4-naphthoquinone (1,4-NAPQ), 1,4-anthraquinone (1,4-ANTQ), and 9,10-anthraquinone (9,10-ANTQ), and of Dr. Heather Runberg, who demonstrated the ability of ANT and these quinones to generate reactive oxygen species (ROS). Then at the Pacific Northwest National Laboratory (PNNL), I was given the opportunity to investigate …


Evolutionary Conservation Of Wiskott-Aldrich Syndrome Protein In Clarthrin-Mediated Endocytosis, Jonah Friedmann Jun 2025

Evolutionary Conservation Of Wiskott-Aldrich Syndrome Protein In Clarthrin-Mediated Endocytosis, Jonah Friedmann

Lawrence University Honors Projects

Clathrin-mediated endocytosis (CME) is a cellular process for internalizing extracellular materials and recycling parts of the plasma membrane into intracellular vesicles. When a threshold of membrane-bound receptors is met at the cell surface, endocytic proteins organize into a conformation that can invaginate the membrane and separate a vesicle into the cytosol. Our current model for understanding CME has been derived from studies in Saccharomyces cerevisiae. Previous research has led to a model for how Las17, a homolog of Wiskott Aldrich Syndrome Protein (WASP), contributes to CME. WASP proteins are critical actin nucleators involved in multiple processes. In S. cerevisiae, Las17 …


Abstract 2587 Recombinant Expression And Purification Of A. Vinelandii Cown In E. Coli, Julie Takei, Cedric P. Owens, Katie Sanders, Neeraja Gajendran Jun 2025

Abstract 2587 Recombinant Expression And Purification Of A. Vinelandii Cown In E. Coli, Julie Takei, Cedric P. Owens, Katie Sanders, Neeraja Gajendran

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The goal of this project is to study the protein CowN in the diazotroph Azotobacter vinelandii (Av) in comparison to CowN in Gluconacetobacter diazotrophicus (Gd). Nitrogenase is an enzyme that catalyzes the reduction of nitrogen gas into ammonia in diazotrophic bacteria. In many diazotrophs, the protein CowN prevents nitrogenase inhibition from the environmental gas carbon monoxide (CO). Previous work studied CowN in the diazotroph G. diazotrophicus. In G. diazotrophicus, CowN binds to nitrogenase and weakens CO binding to its active site. The mechanism of CowN has only been investigated in G. diazotrophicus. Thus, we are interested in determining if CowN's …


Thermal Rheological Properties Of Heat-Moisture Modified And Its Application In Multigrain Cookies, Thi Huyen Trang, Li Xianghong, Miao Jinxu, Wang Faxiang, Liu Yongle, Li Shuang Jun 2025

Thermal Rheological Properties Of Heat-Moisture Modified And Its Application In Multigrain Cookies, Thi Huyen Trang, Li Xianghong, Miao Jinxu, Wang Faxiang, Liu Yongle, Li Shuang

Food and Machinery

[Objective] To develop low -burden,high -nutrient functional baked foods.[Methods] A single -factor experimental design is employed,with rapid visco analyzer,rheometer,and differential scanning calorimeter to analyze the physicochemical properties of heat -moisture modified wheat flour.The cookie formula is optimized based on sensory evaluation.[Results] Heat -moisture treatment significantly enhances the pasting stability and resistant starch content of wheat flour.The optimal auxiliary ingredient formula is 50 g of heat-moisture modified wheat flour,20 g of oat flour,10 g of mung bean flour,and 6 g of resistant dextrin powder.Compared with the control group,the cookies made from the experimental formula show a significantly lower digestibility,with a glycemic …


Hormonal Modulation Of Perineuronal Net Density In The Female Peromyscus Californicus Hippocampus And Medial Prefrontal Cortex, Nazlee Harunani Jun 2025

Hormonal Modulation Of Perineuronal Net Density In The Female Peromyscus Californicus Hippocampus And Medial Prefrontal Cortex, Nazlee Harunani

Lawrence University Honors Projects

Perineuronal nets (PNNs) are specialized extracellular matrix structures that regulate synaptic plasticity and stabilize neural circuits, particularly during the closure of critical periods, a time when the brain is highly plastic and susceptible to environmental influence. Emerging evidence suggests that PNNs may be sensitive to hormonal fluctuations associated with critical periods such as puberty and pregnancy, yet their role in the female brain, particularly in relation to other well-characterized hormonally-mediated events, remains underexplored. This project investigated whether PNN expression in the hippocampus and medial prefrontal cortex varied following vaginal opening, or across different stages of the estrous cycle in Peromyscus …


Foldit Education Mode, Brett Schulz Jun 2025

Foldit Education Mode, Brett Schulz

Electronic Theses and Dissertations

Foldit education mode is a puzzle campaign within the protein folding video game Foldit. Education mode, initially designed as a classroom supplement for undergraduate biochemistry courses, has been expanded to provide a more comprehensive learning tool to players without a background in biochemistry. The edited and added levels teach players about protein biochemistry through playing puzzles designed to convey information and gameplay mechanics. The new Foldit education mode campaign features 49 levels grouped into 11 categories. The campaign has 6 new levels designed specifically for education mode and 4 levels adapted from the traditional Foldit campaign for use within education …


Abstract 2853 Prmt7 Negatively Regulates The Expression P53 In Response To Dna Damage, Molly Niswender, Lorenzo Pessi, Cecilia Lopez, Marco Bisoffi Jun 2025

Abstract 2853 Prmt7 Negatively Regulates The Expression P53 In Response To Dna Damage, Molly Niswender, Lorenzo Pessi, Cecilia Lopez, Marco Bisoffi

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Protein Arginine Methyltransferase 7 (PRMT7) is the only member of the protein arginine methyltransferase protein family that monomethylates its protein substrates. PRMT7 is found in both the nucleus and cytoplasm of breast cells and is believed to play a robust role in the tumorigenesis and metastasis of breast cancer. The goal of this project is to uncover possible pathways for PRMT7 to promote cancer progression. A preliminary antibody array was performed to determine the regulation of known cancer-related proteins by PRMT7. An early-stage human breast cancer cell line, MCF-7, was transfected with plasmid pCDH1-hPRMT7-GFP to over-express PRMT7. Qualitative and quantitative …


Global Patterns Of Genetic Diversity And Species Delimitation In The Lichen-Forming Fungus Cladia Aggregata: A Restriction Site Associated Dna Sequencing (Rad-Seq) Analysis Across Neotropical, Australasian, And Asian Populations, John De Abreu Jun 2025

Global Patterns Of Genetic Diversity And Species Delimitation In The Lichen-Forming Fungus Cladia Aggregata: A Restriction Site Associated Dna Sequencing (Rad-Seq) Analysis Across Neotropical, Australasian, And Asian Populations, John De Abreu

College of Science and Health Theses and Dissertations

Cladia aggregata is a group of lichen-forming fungi comprising multiple species which are difficult to differentiate. C. aggregata has a wide distribution on several different continents but is primarily found in the southern hemisphere. We aimed to further delimit the species complex while also investigating the relatedness of the different species, where they can be found geographically, and what phenotypic traits they possess. We used Restriction Site Associated DNA Sequencing (RAD-seq) to compare thousands of loci across 91 individuals from the Americas, Asia, and Australasia. All Asian samples formed a distinct clade in all phylogenetic trees. Asia, as a distinct …


Exploring The Relationship Between Country Socioeconomic Characteristics And Electronic Waste, Keliiakekaipuka Aria Mccomber Jun 2025

Exploring The Relationship Between Country Socioeconomic Characteristics And Electronic Waste, Keliiakekaipuka Aria Mccomber

Theses and Dissertations

Electrical and electronic waste (e-waste) is one of the fastest-growing and most hazardous waste streams globally. Despite efforts to improve global e-waste management, 77.7 percent of e-waste remains improperly disposed of, particularly in low- and middle-income countries where environmental and health risks are greatest (Baldé et al., 2024). This study evaluates whether national socioeconomic, cultural, and governmental characteristics can predict three key e-waste outcomes: generation per capita, formal collection rates, and resulting burden per capita. Using data from 2015-2022 for 127 countries, we applied mixed effects models incorporating variables such as GDP, Human Development Index, institutional integrity, financial openness, and …


Advances In Bone And Orthopedics 2025 – 5th Edition, Jean-Philippe Berteau, Laurent Pujo-Menjouet, Hélène Follet, Aurélie Levillain Jun 2025

Advances In Bone And Orthopedics 2025 – 5th Edition, Jean-Philippe Berteau, Laurent Pujo-Menjouet, Hélène Follet, Aurélie Levillain

Publications and Research

This volume brings together selected works from the 2025 Bone and Orthopedics Interdisciplinary Symposium (BONITOS), underscoring our community’s ongoing commitment to advancing research in biomechanics, bone health, and orthopedic science. The symposium unites leading experts from around the world, fostering collaboration and the exchange of ideas across disciplines. Organized in partnership with the French-speaking Society of Biomechanics, the French National Institute of Health and Medical Research (INSERM), the University of Lyon, the College of Staten Island of the City University of New York (CUNY), and the American Association of Physical Therapists (APTA) – Brooklyn Staten Island Chapter, BONITOS 2025 represents …


Carbon Monoxide Releasing Polymeric Micelles, Riya Joshi Jun 2025

Carbon Monoxide Releasing Polymeric Micelles, Riya Joshi

Electronic Theses and Dissertations

Carbon monoxide (CO), traditionally known as a toxic gas, has emerged as a potential therapeutic agent due to its cytoprotective, anti-inflammatory, and vasodilatory properties. This study explores the development of CO-releasing polymeric micelles as a controlled delivery system for biomedical applications. Using ring-opening metathesis polymerization (ROMP), we synthesized diblock copolymers incorporating CO-releasing moiety diphenylcyclopropenone (DPCP) with hydrophilic polyethylene glycol (PEG) to enhance solubility and stability of the overall CO releasing system. Dynamic light scattering (DLS) and electron microscopy (EM) confirmed the formation of well-defined micelles, while fluorescence assays demonstrated efficient CO release with the use of Iridium photocatalyst under 470 …


The Impact Of Temperature Induced Vertebral Anomalies On C-Start Swimming Performance In Astyanax Mexicanus (Teleostei: Characidae), Kaleigh Arnold Jun 2025

The Impact Of Temperature Induced Vertebral Anomalies On C-Start Swimming Performance In Astyanax Mexicanus (Teleostei: Characidae), Kaleigh Arnold

College of Science and Health Theses and Dissertations

This study investigates the impact that temperature-induced vertebral anomalies have on the C-start escape response of Astyanax mexicanus, a model species in evolutionary developmental biology. Employing three temperature treatments to induce varying degrees of skeletal anomalies, we assessed their effects on key swimming performance metrics including, C-start time, the curvature coefficient, head displacement distance, and displacement velocity. Through the use of linear mixed models (LMMs) and generalized linear mixed models (GLMMs), our results reveal that specific anomalies such as vertebral fusions and anomalous haemal and neural spines affected the curving ability of c-start escape responses, however, these did not negatively …


1 Herpes Simplex Virus Type 1 And Apolipoprotein-E In Alzheimer’S Disease: Virus Entry And Innate Immunity, Jim Camilleri Jun 2025

1 Herpes Simplex Virus Type 1 And Apolipoprotein-E In Alzheimer’S Disease: Virus Entry And Innate Immunity, Jim Camilleri

College of Science and Health Theses and Dissertations

Herpes simplex virus type 1 (HSV-1) is a neurotropic virus that has been detected in brains affected by Alzheimer’s Disease (AD), the leading global cause of cognitive decline. In vitro and epidemiological studies support a role for HSV-1 in AD. The strongest genetic risk factor for late-onset AD is the E4 allele of APOE, which codes for apolipoprotein-E (ApoE), a protein that mediates brain cholesterol homeostasis. Previous work has suggested that ApoE can affect HSV-1 entry into cells; however, APOE has three alleles (E2, E3, and E4) and allelespecific effects of ApoE on HSV-1 entry remain undetermined. We hypothesized that …


Roles Of Organic Agriculture For Water Optimization In Arid And Semi-Arid Regions, Shikha Sharma, Matt A. Yost, Jennifer R. Reeve Jun 2025

Roles Of Organic Agriculture For Water Optimization In Arid And Semi-Arid Regions, Shikha Sharma, Matt A. Yost, Jennifer R. Reeve

Plants, Soils and Climate Student Research

Water scarcity is a critical challenge in arid and semi-arid regions, where agricultural water consumption accounts for a significant portion of freshwater use. Conventional agriculture (CA) methods with high reliance on chemical and mechanical inputs often exacerbate this issue through soil degradation and water loss. This review aims to examine how different organic practices, such as mulching, cover cropping, composting, crop rotation, and no-till (NT) in combination with precision technologies, can contribute to water optimization, and it discusses the opportunities and challenges for the adoption and implementation of those practices. Previous findings show that organic agriculture (OA) may outperform CA …


Regulation Of Spermatogenesis By The Notch Signaling Pathway, Emma O'Flaherty Jun 2025

Regulation Of Spermatogenesis By The Notch Signaling Pathway, Emma O'Flaherty

Master's Theses

The Notch signaling pathway plays a significant role in gonad development and spermatogenesis, but little is known about its specific targets in the testis. The Drosophila testis contains two populations of stem cells: germline stem cells and cyst stem cells, which give rise to differentiating germline and somatic cyst cells, respectively. Notch signaling is activated in the somatic cyst cells by the Delta ligand from the germline in a region of the testes coined the “transition zone”, where somatic cyst cells progress from early cyst cells surrounding gonialblasts and 2-cell germline cysts to late cyst cells surrounding 16-cell spermatocyte cysts. …


Integrated Metabolomics And Spatial Transcriptomics Of Cystic Pancreatic Cancer Precursors Reveals Dysregulated Polyamine Metabolism As A Biomarker Of Progression, Ricardo A León-Letelier, Yihui Chen, Rongzhang Dou, Ehsan Irajizad, Michele T Yip-Schneider, Ranran Wu, Rahmah Ejaz, Hamid K Rudsari, Yaxi Li, Rachelle Spencer, Riccardo Ballarò, Jody Vykoukal, Mark Hurd, Jennifer B Dennison, Kim-Anh Do, Anirban Maitra, Jianjun Zhang, Samir Hanash, C Max Schmidt, Johannes F Fahrmann Jun 2025

Integrated Metabolomics And Spatial Transcriptomics Of Cystic Pancreatic Cancer Precursors Reveals Dysregulated Polyamine Metabolism As A Biomarker Of Progression, Ricardo A León-Letelier, Yihui Chen, Rongzhang Dou, Ehsan Irajizad, Michele T Yip-Schneider, Ranran Wu, Rahmah Ejaz, Hamid K Rudsari, Yaxi Li, Rachelle Spencer, Riccardo Ballarò, Jody Vykoukal, Mark Hurd, Jennifer B Dennison, Kim-Anh Do, Anirban Maitra, Jianjun Zhang, Samir Hanash, C Max Schmidt, Johannes F Fahrmann

Faculty, Staff and Student Publications

Purpose: We conducted metabolomics and spatial cell transcriptomics of intraductal papillary mucinous neoplasms (IPMN), recognized pancreatic cancer precursors, to identify oncometabolites that inform upon risk of malignancy of IPMNs.

Experimental design: Untargeted metabolomic analyses were performed on cystic fluid from 125 patients with low-grade (LG) dysplasia or high-grade (HG) dysplasia with/without concurrent pancreatic ductal adenocarcinoma (PDAC; IPMN/PDAC). Predictive performance of individual metabolites for identifying HG or PDAC/IPMN was determined and compared with CA19-9 performance. Data were intersected with metabolic profiles of resected IPMN tissues and murine Kras;Gnas IPMN cell lines as well as spatial and single-cell transcriptomics of IPMNs.

Results: …


Azacitidine, Venetoclax, And Magrolimab In Newly Diagnosed And Relapsed Refractory Acute Myeloid Leukemia: Phase Ib/Ii Study And Correlative Analysis, Naval Daver, Jayastu Senapati, Hagop M Kantarjian, Bofei Wang, Patrick K Reville, Sanam Loghavi, Musa Yilmaz, Courtney D Dinardo, Tapan M Kadia, Mhd Yousuf Yassouf, Abhishek Maiti, Sankalp Arora, Guillermo Montalban Bravo, Guilin Tang, Gautam Borthakur, Koji Sasaki, Naveen Pemmaraju, Joie Alvarez, Graciela M Nogueras Gonzalez, Jing Ning, Ghayas C Issa, Marina Konopleva, Michael Andreeff, Farhad Ravandi, Guillermo Garcia-Manero, Hussein A Abbas Jun 2025

Azacitidine, Venetoclax, And Magrolimab In Newly Diagnosed And Relapsed Refractory Acute Myeloid Leukemia: Phase Ib/Ii Study And Correlative Analysis, Naval Daver, Jayastu Senapati, Hagop M Kantarjian, Bofei Wang, Patrick K Reville, Sanam Loghavi, Musa Yilmaz, Courtney D Dinardo, Tapan M Kadia, Mhd Yousuf Yassouf, Abhishek Maiti, Sankalp Arora, Guillermo Montalban Bravo, Guilin Tang, Gautam Borthakur, Koji Sasaki, Naveen Pemmaraju, Joie Alvarez, Graciela M Nogueras Gonzalez, Jing Ning, Ghayas C Issa, Marina Konopleva, Michael Andreeff, Farhad Ravandi, Guillermo Garcia-Manero, Hussein A Abbas

Faculty, Staff and Student Publications

Purpose: Magrolimab is a monoclonal antibody directed against the macrophage checkpoint CD47 on myeloid leukemia cells that was preclinically synergistic with azacitidine-venetoclax, warranting further clinical evaluation.

Patients and methods: In this phase Ib/II study, the triplet combination of azacitidine, venetoclax, and magrolimab was evaluated in adult patients with first-line (ineligible for intensive chemotherapy) and relapsed/refractory acute myeloid leukemia. Azacitidine was dosed at 75 mg/m2 for 7 days, venetoclax at 400 mg/day for 28 days, and magrolimab (recommended phase II dose) as follows: 1 mg/kg dose on days 1 and 4, 15 mg/kg on day 8, and 30 mg/kg on days …


Dynamics Of Mangrove Carbon Stock In Selected Uae Coastline: A Remote Sensing Approach, Karthika Kandamkulathil Gopi Jun 2025

Dynamics Of Mangrove Carbon Stock In Selected Uae Coastline: A Remote Sensing Approach, Karthika Kandamkulathil Gopi

Thesis/ Dissertation Defenses

Mangrove ecosystems play a vital role in carbon sequestration by capturing atmospheric CO₂, storing it in aboveground and belowground biomass, and enhancing soil organic carbon (SOC) through litterfall. Arid mangrove ecosystems, such as those in the UAE, experience extreme environmental stressors, leading to distinct variations in biomass allocation and carbon stock estimates compared to tropical regions. This study aims to evaluate biomass accumulation, litterfall production, and SOC storage in selected UAE mangroves. It analyses seasonal litterfall dynamics and assesses the influence of bulk density, soil moisture, and tidal regimes on SOC and aboveground biomass (AGB) across distinct mangrove zones. Field-based …


The Anticancer Activity Of Novel Chromene Derivatives Against Colorectal Cancer Cells, Rym Magramane Jun 2025

The Anticancer Activity Of Novel Chromene Derivatives Against Colorectal Cancer Cells, Rym Magramane

Thesis/ Dissertation Defenses

Colorectal cancer (CRC) stands as the third most common cancer globally, accounting for nearly 10% of all newly diagnosed cancer cases. In the UAE, CRC was ranked as the third most frequently diagnosed malignancy, and the leading cause of cancer-associated deaths in 2023. Standard CRC treatment strategies include surgical resection, chemotherapy, immunotherapy, targeted therapy, or a combination of all, depending on the cancer stage and molecular profile. Despite these interventions, disease recurrence is experienced by a considerable number of cancer patients. Hence, there is an urgent need to develop novel alternative treatments to overcome poor prognosis. Recently, cancer research has …


Acute Effects Of Blood Flow Restriction During Low-Load Exercise And Recovery On Blood Flow And Performance, Shay B. Richards Jun 2025

Acute Effects Of Blood Flow Restriction During Low-Load Exercise And Recovery On Blood Flow And Performance, Shay B. Richards

Theses and Dissertations

Purpose: Use of blood flow restriction (BFR) during strength training with light loads has been used to induce similar muscular benefits as traditional strength training with heavy loads. Safe and effective recommendations for the use of BFR relies on an understanding of how different methods of BFR alter blood flow during rest and exercise. The purpose of this study was to compare blood flow during exercise and recovery between continuous BFR (CONT), intermittent BFR (INT), and no BFR (NBFR) as a control. Methods: 16 participants (8 male, 8 female) participated in this study on three different days, separated by at …


Functional Characterization Of Uncharacterized Essential Genes In The Oral Pathogen Streptococcus Mutans, Courtney Dover Jun 2025

Functional Characterization Of Uncharacterized Essential Genes In The Oral Pathogen Streptococcus Mutans, Courtney Dover

Student Theses and Dissertations

Streptococcus mutans is a pathogen associated with the formation of dental caries, and its genome contains many uncharacterized genes, including some which are classified as essential genes. These genes are required for the growth of the organism. Characterizing the function of these genes is important for understanding the organism, as well as identifying potential antimicrobial targets. This project used a CRISPRi (CRISPR interference) system to repress seven experimentally uncharacterized genes within the S. mutans genome and investigated the effects of their repression via RNA-seq transcriptomics, phylogenetic analysis, and TEM. The gene annotated as SMU_393 was then prioritized for further analysis …


Role Of Gut-Liver-Brain Axis In Neuropsychiatric Symptoms Of Parkinson’S Disease, Raveena Dhanani Ratnayake Jun 2025

Role Of Gut-Liver-Brain Axis In Neuropsychiatric Symptoms Of Parkinson’S Disease, Raveena Dhanani Ratnayake

Student Theses and Dissertations

Neuropsychiatric symptoms (NPS), such as depression, and anxiety, and mild cognitive impairment (MCI), often precede motor symptoms in Parkinson’s disease (PD), highlighting the need for early biomarkers and mechanistic insights. Gut-microbiome-related metabolites, including secondary bile acids, influence lipid homeostasis and mitochondrial function, impacting neuropsychiatric and neurodegenerative disorders. This study examines metabolic alterations in PD, focusing on lipid metabolism, bile acids, acylcarnitine, and amino acids. Our findings showed significant changes in lipid metabolism, transsulfuration pathway, bile acids, acylcarnitine, and amino acids in PD severity and NPS. Specific lipid subclasses were linked to NPS, cognitive impairment, and motor impairment. Given the limited …


Genetic Structuring Of The Ozark Pocket Gopher (Geomys Bursarius Ozarkensis) And Coevolution With Its Geomydoecus Ectoparasites, Monica Raquel Reusche Jun 2025

Genetic Structuring Of The Ozark Pocket Gopher (Geomys Bursarius Ozarkensis) And Coevolution With Its Geomydoecus Ectoparasites, Monica Raquel Reusche

Student Theses and Dissertations

The Ozark pocket gopher Geomys bursarius ozarkensis is a highly isolated and restricted subspecies of the plains pocket gopher endemic to Izard Co., Arkansas. This isolation may have impacts genetically and may have caused speciation of their chewing louse. First, I updated the distribution and confirmed occupation at 46 previously documented and 91 additional sites, a 34% increase in areal range. Next, I evaluated natal dispersal which was rare (9.1%) and occurred over shorter distances (≤ 63 m) than for other gopher species. Analysis of single nucleotide polymorphisms from contemporary populations and museum specimens indicated a high genetic structure among …


Stepping Into Motherhood: Pregnancy-Induced Changes To Foot Structure And Biomechanics, Lauren R. Williams Jun 2025

Stepping Into Motherhood: Pregnancy-Induced Changes To Foot Structure And Biomechanics, Lauren R. Williams

Theses and Dissertations

INTRODUCTION: Pregnant women have an elevated risk of developing lower limb musculoskeletal disorders, likely due to the rapid increase in body mass and joint laxity. While a few studies have evaluated changes in static foot posture due to pregnancy, it is unclear if body mass or joint laxity is the primary driver. Additionally, how pregnancy affects the mechanics of the foot during dynamic movements is still not understood. PURPOSE: The purpose of this study is to investigate the foot's response to pregnancy. First, we examined foot tissue characteristics across pregnancy, specifically plantar fascia (PF) stiffness, length, and thickness. Additionally, we …


Weather Impacts On Specialty Fruit Wholesale Prices, Oladayo Daniel Oluleye Jun 2025

Weather Impacts On Specialty Fruit Wholesale Prices, Oladayo Daniel Oluleye

LSU Master's Theses

This article investigates the relationship between temperature and precipitation variability and wholesale specialty fruit prices in the United States. Using fixed-effects panel regression and a comprehensive dataset of monthly price observations across ten major U.S. wholesale markets (Atlanta, Baltimore, Boston, Chicago, Detroit, Los Angeles, Miami, New York, Philadelphia and San Francisco) from 2000 to 2019, we examine how weather fluctuations affect wholesale market prices for five fruits including apples, avocados, grapes, oranges, and strawberries. Our analysis categorizes temperature into discrete bins representing the number of days per month within specific temperature ranges. The results show that extreme temperatures, particularly above …