Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

All ETDs from UAB

Discipline
Keyword
Publication Year

Articles 631 - 660 of 3685

Full-Text Articles in Entire DC Network

Pheochromocytoma: A Systematic Review Of The Diagnosis, Treatment, And Risk Factors, Brandon A. Singletary Jan 2020

Pheochromocytoma: A Systematic Review Of The Diagnosis, Treatment, And Risk Factors, Brandon A. Singletary

All ETDs from UAB

ABSTRACT Pheochromocytomas and extra-adrenal paragangliomas (PGLs) are forms of neuroendocrine tumors which when left untreated lead to debilitating complications of cerebral hemorrhaging, stroke, and death. Typically, the tumors present with symptoms of episodic headaches, sweating, and palpitations, however hypertension is considered one of the more predominant signs. As a result of the rarity of the disease and wide range of symptoms, there are often difficulties in screening and diagnosis to identify these tumors. While there are many case studies and results in small populations, large epidemiologic driven studies are limited. To date the majority of large-scale studies exist in countries …

Go to article

Toxin Secretion By Mycobacterium Tuberculosis, Uday Tak Jan 2020

Toxin Secretion By Mycobacterium Tuberculosis, Uday Tak

All ETDs from UAB

Mycobacterium tuberculosis (Mtb) is a highly infectious airborne bacterial pathogen, and the causative agent of human tuberculosis. Mtb infects approximately one-third of the human population, and is responsible for more deaths than any other infectious disease in the history of mankind. Mtb is an intracellular pathogen and primarily infects myeloid cells, such as macrophages in the human lung. In macrophages, Mtb establishes a replication niche within membrane-bound vacuoles named phagosomes, while subverting immunity. The intracellular survival of Mtb depends on manipulation of host cellular processes through secreted effector proteins. Ultimately, this intracellular vacuole is ruptured by the type VII secretion …

Go to article

Uav Navigation, Tracking, And Interception Using Deep Reinforcement Learning, Ali Alhaj Darwish Jan 2020

Uav Navigation, Tracking, And Interception Using Deep Reinforcement Learning, Ali Alhaj Darwish

All ETDs from UAB

We propose a self-supervised, model-free deep reinforcement learning architecture with cascade reward for unmanned aerial vehicle navigation and target interception in a 3D environment. The first contribution of the dissertation solves the problem of partial observability when non-linear function approximators are used for learning stochastic policies. The second contribution optimizes the problem of maximizing the total expected rewards. The third contribution trains the agent in a photo-realistic environment with a real physics engine. To achieve these goals, a deep Q-network that combines double and dueling architectures is adopted as a value function approximator, and the prioritized experience replays the sample …

Go to article

Creatinine Detection Based On Molecularly Imprinted Technique And Luminescence Of Nano-Diamond As A Signal Transducer, Reim Almotiri Jan 2020

Creatinine Detection Based On Molecularly Imprinted Technique And Luminescence Of Nano-Diamond As A Signal Transducer, Reim Almotiri

All ETDs from UAB

Creatinine measurement is an important diagnostic test for assessing kidney health. This work represents our current progress in creatinine artificial sensor based on a molecularly imprinted polymer of polyacrylamide hydrogel and nanodiamonds fluorescence change. For a 0.3 mM creatinine rebinding solution, an imprinting factor of 2.54 was measured. Also, a molecularly imprinted polymer was obtained by incorporating nanodiamond into a creatinine-imprinted polyacrylamide hydrogel. The quenching of peak nanodiamond fluorescence was significantly higher in the creatinine-imprinted polymer compared to the non-imprinted polymer, indicative of higher creatinine affinity in the imprinted polymer. Nanodiamond fluorescence from nitrogen-vacancy color centers (NV- and NV0) was …

Go to article

Mid-Fusiform Sulcus Anatomy And Its Relationship To Face Processing And Social Functioning In Autism Spectrum Disorder, Carla Ammons Jan 2020

Mid-Fusiform Sulcus Anatomy And Its Relationship To Face Processing And Social Functioning In Autism Spectrum Disorder, Carla Ammons

All ETDs from UAB

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social communication and restricted and repetitive behaviors and interests. One of the most consistent findings in ASD is reduced attention to and atypical processing of faces. However, the brain basis of aberrant face processing in ASD remains opaque. A novel neuroanatomical feature, the mid-fusiform sulcus (MFS), is strongly associated with face-selective regions of the fusiform gyrus (FG) as well as other large-scale functional and structural divisions in the ventral temporal cortex (Weiner et al., 2014). However, this feature is unexplored in ASD. The overarching goal of this dissertation …

Go to article

Prediction Of The Optimal Catheter Placement Selection For Therapy Infusion To Treat Brain Tumors, Lisa Hope Antoine Jan 2020

Prediction Of The Optimal Catheter Placement Selection For Therapy Infusion To Treat Brain Tumors, Lisa Hope Antoine

All ETDs from UAB

ABSTRACT In 2020, the National Brain Tumor Society reported that physicians would diagnose more than 87,000 new cases of brain tumors. These cases will add to the approximately 700,000 individuals in the United States living with brain and central nervous system tumors. Almost 18,000 of these cases will prove fatal [1]. The blood-brain barrier (BBB) hinders the effective treatment of brain tumors. The task of this barrier is to protect the brain from composition instabilities in blood plasma and shield the brain from agents that may adversely impact brain functionality. However, by performing its tasks the barrier prevents potential effective …

Go to article

Understanding The Impact Of Diet And Obesity On Anti-Tumor Immunity And Therapeutic Efficacy In Kidney Cancer, Rachael Miller Orlandella Jan 2020

Understanding The Impact Of Diet And Obesity On Anti-Tumor Immunity And Therapeutic Efficacy In Kidney Cancer, Rachael Miller Orlandella

All ETDs from UAB

Obesity is regarded as a major risk factor for developing renal cell carcinoma (RCC). Advanced-stage RCC exhibits chemotherapeutic resistance, but is responsive to immunotherapies such as the immune checkpoint inhibitor anti-programmed cell death-1 (anti-PD-1). Despite some clinical successes, response rates remain low for anti-PD-1 monotherapy (20-30%). Preclinical evaluations of immunotherapeutic strategies typically use lean mice and do not account for patient comorbidities. This may explain the underwhelming success rates following clinical translation of new cancer treatments. Recent studies found that obesity was associated with favorable outcomes and responses to immunotherapy in melanoma. However, the effects of obesity on anti-tumor immunity …

Go to article

Role Of Trib3 In Progression And Pathogenesis Of Diabetic Retinopathy, Priyamvada Milind Pitale Jan 2020

Role Of Trib3 In Progression And Pathogenesis Of Diabetic Retinopathy, Priyamvada Milind Pitale

All ETDs from UAB

Diabetic retinopathy (DR) is reported to be one of the leading causes of blindness in the United States by Center for Disease Prevention and Control. As the estimated prevalence of the disease will likely triple by 2020, the research in this area should focus on identifying novel targets and therapeutic approaches. One of the therapeutic approaches for DR is the reprograming of retinal metabolism to delay the progression of the disease. The unfolded protein response (UPR) is recognized as a cellular pathway activated in diabetic retina which interacts with key transcription factors to physiologically regulate glucose, lipid homeostasis, and angiogenic …

Go to article

Novel Hiv Adaptation Strategy Against Host Cd8 T Cell Immunity, Kai Qin Jan 2020

Novel Hiv Adaptation Strategy Against Host Cd8 T Cell Immunity, Kai Qin

All ETDs from UAB

Since the 1980s, HIV infection has caused millions of death and tremendous economic losses worldwide. Despite great scientific advances, the only effective therapy to date, antiretroviral therapy (ART), merely delays disease progression yet cannot eradicate viral infection. Therefore, an effective HIV vaccine that can prevent the acquisition of infection would be a desirable alternative. The critical role of CD8 T-cell immunity in HIV infection has been well documented and therefore not surprisingly a great deal of effort has been focused on developing an effective CD8 T-cell based HIV vaccine. However, by far, such CD8 T-cell based HIV vaccine trials have …

Go to article

An Investigation Of Ion Bombardment From Microwave Plasma Chemical Vapor Deposition During Bias Enhanced Nucleation Of Boron-Rich Materials, Bhavesh Ramkorun Jan 2020

An Investigation Of Ion Bombardment From Microwave Plasma Chemical Vapor Deposition During Bias Enhanced Nucleation Of Boron-Rich Materials, Bhavesh Ramkorun

All ETDs from UAB

This study involves an Ar/H2 plasma acting on a negatively DC-biased silicon sub-strate in a microwave plasma chemical vapor deposition. The flow rate of hydro-gen was constant at 500 sccm, and that of argon was varied between 0 sccm and 500 sccm. Bias current was recorded for several values of the applied bias voltage ranging from – 100V to – 340V. At 10 and 20 torr, a peak in the bias current was found as argon flow rate changed. A decrease in current with varied argon intensi-ty in glow discharge plasma has been reported in the literature. Our results sub-stantiate …

Go to article

Novel Methods For Image Analysis To Evaluate Relationships Between Biomarkers In Alzheimer's Disease, Fabio Raman Jan 2020

Novel Methods For Image Analysis To Evaluate Relationships Between Biomarkers In Alzheimer's Disease, Fabio Raman

All ETDs from UAB

Neuroimaging biomarkers, including pathological amyloid and tau measured with positron emission tomography (PET) and neurodegeneration measured with magnetic res-onance (MR), are part of the research framework for Alzheimer’s disease (AD). Abnormal brain amyloid is currently the earliest established phenotypic marker of AD, and other imaging biomarkers such as tau-PET become abnormal later in the progression of AD pathophysiology. The ability to measure amyloid and predict both tau status and cogni-tion using a single amyloid-PET study through a method readily employed in both re-search and clinical settings would provide a valuable tool in assessing AD. The first goal of this dissertation …

Go to article

Investigating Growth-Related Hormones And Their Roles In Metabolism In Fish Skeletal Muscle, Ross Michael Lee Reid Jan 2020

Investigating Growth-Related Hormones And Their Roles In Metabolism In Fish Skeletal Muscle, Ross Michael Lee Reid

All ETDs from UAB

The endocrine system is essential for the maintenance and regulation of skeletal muscle growth and metabolic processes, as secretions of growth-related hormones directly regulate these systems. The roles of these growth-related hormones are well understood in mammals yet are not well defined in teleosts. Thus, the work outlined in these chapters provides novel insight for the actions of two growth-related hormones, Growth Hormone (GH) and Teneurin C-terminal Associated Peptide (TCAP), in fish skeletal muscle. First, Chapter 2 highlights the work expanding the application of resazurin as a novel method of in vivo metabolic assessment across fish life-stages, which was utilized …

Go to article

Investigating The Roles Of The Renal Primary Cilium Through The Use Of Intravital Imaging, Dustin Zachary Revell Jan 2020

Investigating The Roles Of The Renal Primary Cilium Through The Use Of Intravital Imaging, Dustin Zachary Revell

All ETDs from UAB

Primary cilia are small microtubule based appendages present on nearly every cell type in the mammalian body, and are highly conserved from organisms as simple as algae to humans. Cilia function as complex signaling centers integrating a variety of pathways and play critical roles throughout development and in maintaining homeostasis. Mutations to ciliary proteins in humans result in a wide array of diseases termed ciliopathies, which have a broad range of symptoms affecting nearly every organ in the body. Renal primary cilia are present on the apical side of tubular epithelium, where they project into the lumen and are thought …

Go to article

A Critical Narrative Inquiry Into The Lived Experiences Of African American Male K-12 Novice Educators In An Urban School District In Central Alabama, Herbert Leon Blackmon Jan 2020

A Critical Narrative Inquiry Into The Lived Experiences Of African American Male K-12 Novice Educators In An Urban School District In Central Alabama, Herbert Leon Blackmon

All ETDs from UAB

The purpose of this study is to share how African American/Black male K-12 novice educators navigated their own educational journey to become K-12 educators in an urban school district in central Alabama. An urban school district was identified from findings from the Census Bureau and had a school that sat inside an urbanized area and inside a principal city with a population of 250,000 or more. Because of its size, urban school districts were diversified with a large enrollment and an increased number of minority students. By using a qualitative, critical narrative inquiry approach, participants were able to recount their …

Go to article

Adapting New Technologies For Evaluating The Ecology And Distribution Of The Diamondback Terrapin (Malaclemys Terrapin) In Alabama, Nicole Mckim Conner Jan 2020

Adapting New Technologies For Evaluating The Ecology And Distribution Of The Diamondback Terrapin (Malaclemys Terrapin) In Alabama, Nicole Mckim Conner

All ETDs from UAB

The diamondback terrapin (Malaclemys terrapin), an emydid turtle that plays an important ecological role in salt marsh ecosystems, has declined over the last century and is listed as a Priority One Species (highest conservation concern) in Alabama. Traditional surveying techniques have been employed to monitor diamondback terrapins on the coast of Alabama throughout the last decade; yet, these techniques can be time-consuming, labor-intensive, and disruptive to terrapins and their habitats. This study evaluated the potential for UAS technology and eDNA methodologies to effectively monitor diamondback terrapin presence, abundance, and/or distribution in salt marsh habitats. UAS-based surveys were conducted in 2017 …

Go to article

An Evaluation Of Ontogenetic Allometry Of Defensive And Nutrient Acquisition Properties Of Select Skeletal Components Of The Regular Sea Urchin Lytechinus Variegatus, Raven Amber Edwards Jan 2020

An Evaluation Of Ontogenetic Allometry Of Defensive And Nutrient Acquisition Properties Of Select Skeletal Components Of The Regular Sea Urchin Lytechinus Variegatus, Raven Amber Edwards

All ETDs from UAB

Ontogenetic allometric analyses can provide novel insights into aspects of evolution, ecology, and conservation. For example, a recent study found marine fish exhibit hyperallometric scaling of reproductive output in relation to body size. Accordingly, to sustain fish populations the largest size class of fish should be protected. The present study exploits a model sea urchin to explore allometry to evaluate the ontogeny of skeletal defense and feeding efficiency (Aristotle's lantern). Lytechinus variegatus were sampled from St. Joseph Bay, Florida. A range of different sized late juvenile to adult individuals were measured and then dissected into skeletal components. Skeletal defense was …

Go to article

Genome-Wide Mirna Regulation Of Stress Susceptibility Across The Brain In A Rodent Model Of Early Life Stress, Lauren Alexis Allen Mckibben Jan 2020

Genome-Wide Mirna Regulation Of Stress Susceptibility Across The Brain In A Rodent Model Of Early Life Stress, Lauren Alexis Allen Mckibben

All ETDs from UAB

Early life stress (ELS) affects a significant portion of the US population in the form of various types of abuse and neglect, as well as household dysfunction and loss of a loved one, among others. Although these experiences happen early in life, they increase risk for mental health disorders, especially major depression (MDD), across the lifespan. MDD is a debilitating psychiatric disorder marked by periods of depressed mood and loss of pleasure in once enjoyable activities. Patients with MDD also report trouble sleeping, unintentional weight loss or gain, feelings of worthlessness, and suicidal ideation. MDD is associated with annual $100 …

Go to article

T Cells In Synucleinopathies, Gregory Paul Williams Jan 2020

T Cells In Synucleinopathies, Gregory Paul Williams

All ETDs from UAB

Synucleinopathies, which include Parkinson disease (PD), dementia with Lewy Bodies (DLB), and multiple system atrophy (MSA), are a collection of neurodegenerative diseases that are in major part defined by the presence of alpha-synuclein (α-syn) rich protein aggregates in the brain. Increasing evidence has highlighted a neuroinflammatory phenotype also associated with these synucleinopathies. This neuroinflammatory phenotype includes the activation of central nervous system (CNS) microglia, increased pro-inflammatory cytokines, and the infiltration of peripheral T cells into the CNS. We sought to further explore the T cell responses associated with PD and MSA. Using two preclinical mouse models of PD and MSA, …

Go to article

Co-Factors In Fgf Signaling, Christopher Yanucil Jan 2020

Co-Factors In Fgf Signaling, Christopher Yanucil

All ETDs from UAB

The fibroblast growth factor (FGF) family consists of a group of proteins whose diverse biological functions are mediated by receptor tyrosine kinases, termed FGF receptors (FGFR) 1-4. While paracrine FGFs require heparin sulfate as a co-factor for FGFR bind-ing and signaling, it has been assumed that endocrine FGFs, such as FGF23, do not bind heparin but instead require klotho, a family of transmembrane proteins, as a co-receptor on specific target cells. FGF23 acts as bone-derived hormone that targets tubular epitheli-al cells in the kidney via FGFR1 and α-klotho to reduce renal phosphate uptake. In chron-ic kidney disease (CKD), the kidney …

Go to article

Network-Based Analytics For Discovering Gene Modules And Biomarkers In Complex Diseases, Zongliang Yue Jan 2020

Network-Based Analytics For Discovering Gene Modules And Biomarkers In Complex Diseases, Zongliang Yue

All ETDs from UAB

With rapidly increasing novel discoveries of associations between genomic data and complex disease phenotypes, the translation of those associations into knowledge and the identification of critical molecular mechanisms are essential to guild clinical decisions such as the diagnosis of symptomatic individuals, the prediction of disease risk, reproductive genetic counseling, and determining pharmacogenetic profiles for treatment. To decipher the genome of complex diseases, gene-centric analyses focus on detecting molecular mechanisms lead by driver genetics variants, abnormally expressed genes and high-abundance proteins through gene module construction. Additionally, the gene module construction approaches implement systems biology analysis to reveal the causative co-expressed gene …

Go to article

Development Of Natural Language Processing Algorithm For Dental Charting, Yi-Fan Zhang Jan 2020

Development Of Natural Language Processing Algorithm For Dental Charting, Yi-Fan Zhang

All ETDs from UAB

Purpose: The purpose was to develop a natural language processing algorithm, which will input data from oral examination transcripts to a structured database. Methods: Four case vignettes were produced for primary, mixed, and permanent dentition patients with varying degree of soft tissue pathology, caries, existing restorations and occlusion relationships. After calibration, dental students were instructed to perform simulated oral examinations based on the case vignettes, using natural language as they would to an assistant who was charting the case. The investigator transcribed the audio recordings of the simulated oral exams. Twenty simulated oral examinations were collected to develop a natural …

Go to article

Dietary Nitrate And The Oral Microbiome In Obesity, Health And Exercise, Christian E. Behrens Jan 2020

Dietary Nitrate And The Oral Microbiome In Obesity, Health And Exercise, Christian E. Behrens

All ETDs from UAB

Obesity ranks among the top growing health concerns worldwide. The prevalence of obesity at all life stages continues to rise with nearly 40% of adults and 35% of children/adolescents being affected. Equally troublesome is the increased risk for a number of comorbidities associated with obesity including cardiovascular disease, stroke, type 2 diabetes mellitus, and certain types of cancer. The successful treatment of obesity, particularly long-term, continues to prove challenging and is often met with limited success. This highlights the importance of continued investigation into alternative strategies that may reduce the incidence and severity of obesity and associated pathophysiologies. Regular physical …

Go to article

Parents’ Personal Characteristics In Explaining Perceptions Of Infant Temperament, Logan Boe Jan 2020

Parents’ Personal Characteristics In Explaining Perceptions Of Infant Temperament, Logan Boe

All ETDs from UAB

Although a popular topic in developmental psychology research, straightforward ways to interpret measurements of infant temperament (IT) are lacking. Notably, parental personal characteristics, such as psychological distress and regulatory abilities, and resources available to parents may influence parents’ IT reports. The aims of the current project were to: 1) determine if parental characteristics mediate the association between IT and household income; 2) determine if personal resources available to parents (social support, coping, partner satisfaction) moderate the relationships between parental characteristics and IT; and 3) determine which parental characteristics predict differences between mothers’ and fathers’ IT reports. Prenatally, 201 mothers and …

Go to article

Measuring Student Attitudes Toward Offenders: The Potential Mediating Role Of Familial Incarceration, Susan Faith Boyd Jan 2020

Measuring Student Attitudes Toward Offenders: The Potential Mediating Role Of Familial Incarceration, Susan Faith Boyd

All ETDs from UAB

Each year hundreds of thousands of ex-offenders are released from U.S. jails and prisons to return to their communities. After release, ex-offenders’ families can play a critical role in helping their loved ones re-adjust to life outside of prison as well as meet the terms of their release; however, the severe financial, emotional, and social hardships associated with reentry have great potential to strengthen or weaken ex-offenders’ family support networks. The current study sought to explore how attitudes toward offenders differ between offenders’ family members and individuals who have never experienced familial incarceration. Adaptations of The Attitudes Toward Prisoners Scale …

Go to article

Symbolic Annihilation, The Politics Of (Mis)Representation, And The Stress And Health Of Millennial Black Women, Chenoia Nicole Bryant Jan 2020

Symbolic Annihilation, The Politics Of (Mis)Representation, And The Stress And Health Of Millennial Black Women, Chenoia Nicole Bryant

All ETDs from UAB

The (mis)representation of Black populations in media has been extensively explored and critiqued by several scholars. From their introduction into media through radio to their visi-bility in television and news, the tropes of Black womanhood have carried over from colo-nialist perspectives to present day. Considering race and gender as cultural structures con-straining Black women through the assignment of stereotypical scripts, it is important to consider how, when and where Black women’s agency enters. Negative racialized and gendered stereotypes are informed by culture at large, but Black women’s agency impacts the interpretation of these (mis)representations, offering space for both conformity and …

Go to article

Epigenetic Regulation In Cancer And Development, Theodore Busby Jan 2020

Epigenetic Regulation In Cancer And Development, Theodore Busby

All ETDs from UAB

Feedback loops between cellular cues and changes in gene expression mediate the interactions between a multitude of regulatory events that promote development and cancer. Vesicular trafficking is an important process in carrying out signaling events by transporting receptors and ligands to and from the cell surface. GBF1 and BIG1 are large guanine-exchange factors (GEFs) that activate GTPase mediated shuttling of cargo through the Golgi apparatus. This dissertation demonstrates that GBF1 localizes to the cytoplasmic membrane in glioblastoma multiform cells to maintain cell shape and promote migration. Reports have shown that BIG1translocates to the nucleus is hepatocyte carcinoma cell lines in …

Go to article

Enhancer Rnas As Regulators Of Gene Expression And Neuronal Function, Nancy Verena Nicole Carullo Jan 2020

Enhancer Rnas As Regulators Of Gene Expression And Neuronal Function, Nancy Verena Nicole Carullo

All ETDs from UAB

Genomic enhancers are cis-regulatory elements in the DNA that exhibit spatial and temporal control over intricate gene expression programs shaping fate and function of heterogeneous cell populations in the developing and adult brain. In addition to their role in cellular development and maintenance, enhancer activity drives transcriptional changes in response to stimulation. Active enhancers are subject to bidirectional transcription that yields non-coding enhancer RNAs (eR-NAs). However, the functional role of eRNAs in transcriptional regulation remains controversial. Therefore, we used primary neuronal cultures to investigate en-hancers and eRNAs in the rat genome. We identified and verified enhancer-gene pairs, characterized their response …

Go to article

Obesity-Induced Immune Dysfunction: Implications For Anti- Tumor Immunity And Immunotherapeutic Efficacy, Justin Tyler Gibson Jan 2020

Obesity-Induced Immune Dysfunction: Implications For Anti- Tumor Immunity And Immunotherapeutic Efficacy, Justin Tyler Gibson

All ETDs from UAB

In the US, nearly 40% of adults have obesity. Further, obesity is known toincrease the risk for development, recurrence, and mortality associated with multiple types of cancer. However, despite such high prevalence, the impact of excess body weight on anti-tumor immunity and response to immunotherapeutics remains poorly and incompletely understood. In order to address these deficiencies, we have utilized multiple approaches to study obesity-associated perturbations in the immunogenetic, soluble protein, and cellular profiles of mice bearing mammary tumors and treatment naive human subjects with clear cell renal cell carcinoma (ccRCC). In a pre-clinical murine model of breast cancer, we find …

Go to article

Denervation Supersensitivity Of Βeta-Adrenergic Receptors In A Prodromal Model Of Alzheimer's Disease, The Tgf344-Ad Rat, Anthoni Goodman Jan 2020

Denervation Supersensitivity Of Βeta-Adrenergic Receptors In A Prodromal Model Of Alzheimer's Disease, The Tgf344-Ad Rat, Anthoni Goodman

All ETDs from UAB

The central noradrenergic (NA) system is critical for maintenance of attention, behavioral flexibility, spatial navigation, and learning and memory, those cognitive functions lost first in early Alzheimer’s disease (AD). In fact, the locus coeruleus (LC), the major source of norepinephrine (NE) in brain, is the first site of pathological tau accumulation in human AD associated with axon loss throughout forebrain, including hippocampus. The dentate gyrus (DG) is heavily innervated by LC-NA axons, where released norepinephrine (NE) acts on β adrenergic receptors (ARs) at excitatory synapses from entorhinal cortex (EC) to facilitate long-term synaptic plasticity and memory formation. These synapses show …

Go to article

Microrna Regulation Of Post-Injury Cardiac Remodeling And Heart Failure, John Clark Henderson Jan 2020

Microrna Regulation Of Post-Injury Cardiac Remodeling And Heart Failure, John Clark Henderson

All ETDs from UAB

Doxorubicin (DOX), an anthracycline, is a widely used chemotherapy agent against various forms of cancer; however, it is also known to induce dose-dependent cardiotoxicity leading to adverse outcomes. Investigating the underlying molecular signaling might have clinical implications. MicroRNAs (miRNAs) have been shown to mediate many diseases and are used as biomarkers for chemotherapy; but currently their role in the regulation of DOX-induced cardiotoxicity is not well understood. Our previous study has shown upregulation of miRNA-377 in the cardiomyocytes (CMs) after cardiac ischemia-reperfusion injury in mice. In this dissertation, we discovered that miR-377 was upregulated in the myocardium after DOX treatment, …

Go to article

First Prev Next Last