Medicine and Health Sciences Commons^™

Roles Of Adiponectin And Its Receptors In Foam Cell Transformation, Ling Tian

All ETDs from UAB

Macrophages play a critical role in the initiation and progression of atherosclerosis by producing pro-inflammatory mediators and transforming into lipid-laden foam cells. The prevention of lipid accumulation and inflammation in macrophage foam cells, therefore, represents a promising target for effective therapy for atherosclerosis. Adiponectin is a circulating cytokine primarily expressed and secreted by adipocytes, and is downregulated in obesity-linked diseases including type 2 diabetes, coronary artery disease and hypertension. In oxidized low-density lipoprotein (oxLDL)-induced human THP-1 macrophage foam cells, adiponectin suppresses lipid accumulation through decreasing lipid uptake and increasing high-density lipoprotein (HDL)-mediated lipid efflux. The potential mechanisms that adiponectin utilizes …

Cgmp Pde As A Novel Molecular Target For The Prevention And Treatment Of Breast Cancer, Heather Nicole Tinsley

All ETDs from UAB

Breast cancer remains a major health concern, despite efforts to develop improved therapeutics. Chemoprevention is a promising strategy for reducing breast cancer-related morbidity and mortality. However, with the exception of the selective estrogen receptor modulators (SERMs), which have limited efficacy and severe toxicities, no drugs have been approved for breast cancer chemoprevention. Studies demonstrate that certain nonsteroidal anti-inflammatory drugs (NSAIDs) display promising chemopreventive efficacy. Unfortunately, the depletion of physiologically important prostaglandins due to inhibition of the cyclooxygenase (COX) enzymes results in potentially fatal toxicities, which exclude the use of NSAIDs and COX-2 selective inhibitors for chemoprevention. Ample data, however, suggest …

Investigation Of The Cese Framework For Viscous Flows, Balaji Shankar Venkatachari

All ETDs from UAB

A transient viscous solver has been developed based on the novel space-time conser-vation element solution element (CESE) framework. Till date, the numerical accuracy of the CESE framework in modeling inviscid flow problems has been well documented, while very little work has been done in regards to modeling transient viscous flows. In this work, an attempt to fill that gap in literature was carried out by rigorously investigat-ing the numerical accuracy and computational performance of the CESE framework in simulating such flows. The study aims at gaining a deeper understanding on the numeri-cal accuracy and dissipation characteristics of the CESE framework, …

Red Blood Cell And Hemoglobin Dependent Modulation Of Reactive Species Metabolism: Implications For Vascular Homeostasis, Dario A. Vitturi

All ETDs from UAB

The recent discovery that red blood cells might mediate hypoxic blood flow together with accumulating evidence that suggests a role for the modulation of vascular inflammation has reshaped the way we think about the function of these cells. In this thesis we investigate the mechanisms that regulate these newly appreciated functions and focus on i) the ability of red cells to couple oxygen sensing with nitrite reduction and nitric oxide formation and ii) the role of the beta93cys, a conserved residue amongst mammalian hemoglobins and whose function remains unclear. Data will be presented that demonstrate that nitrite reduction to nitric …

Development And Validation Of A Palliative Care Needs Assessment Instrument-English/Arabic Versions (Pcna-Eav), For Use With Patients With Advanced Cancer, Susan Edith Volker

All ETDs from UAB

The aim of this study was to develop and translate a psychometrically valid and reliable, population-based, needs assessment instrument, the PCNA-EAV, to measure the health care and support needs of patients with advanced cancer. The cross-sectional study design combined qualitative and quantitative methods, to test instrument reliability and validity, and to examine the association between sample characteristics and health care and support needs. The 116-item, PCNA-EAV, comprised 10 domains of need: physical/functional; social; psychological/emotional; information; communication; helpful resources; financial; religious/spiritual; priority of need; and preference for care The target population was all cancer patients in the department of oncology at …

Usp14: A Link Between The Proteasome And Synaptic Function, Brandon John Walters

All ETDs from UAB

The ubiquitin proteasome system (UPS) is a coordinated process by which the cell can control protein distribution and abundance. Proteins are marked for turnover by the construction of a polyubiquitin chain on the protein substrate. Once engaged by the proteasome, the ubiquitin side-chain is disassembled by proteasomal deubiquitinating enzymes (DUBs), preventing entry of ubiquitin into the proteasome and recycling it for use in future reactions. One of the DUBs that resides on the proteasome is Ubiquitin Specific Protease 14 (Usp14), which is mutated in the ataxia (axJ) mice. This mutation results in pronounced physical deficits and, unexpectedly, a deficit in …

Contributions Of The Atrial Natriuretic Peptide Gene System To The Relationship Between Pediatric Body Fat, Free Fatty Acids, And Blood Pressure, Amanda Willig

All ETDs from UAB

Elevated blood pressure and nonesterified fatty acids (NEFA) in children can lead to increased chronic disease risk during adulthood. The atrial natriuretic peptide precursor A (NPPA) and natiuretic peptide receptor A (NPR1) genes encode for atrial natriuretic peptide (ANP) and its cell receptor, respectively, and may influence levels of blood pressure and NEFA. Additionally, it is unclear how body composition, physical activity, physical fitness, and racial genetic ancestry influence pediatric NEFA and blood pressure. In order to understand the associations among these factors, five investigations were performed. For experimental aim 1, the association between blood pressure and body composition measures …

The Role Of Socioeconomic Factors In Racial And Ethnic Disparities Among Child And Adult Tuberculosis Cases, Spatial And Non-Spatial Analysis: Alabama 1993-2007, Sharada Adolph

All ETDs from UAB

This study aimed to evaluate the role of individual and community/population level socioeconomic factors on racial/ethnic disparities among children and adults with TB, and used area-based socioeconomic measures (ABSMs) for the identification of high-risk geographic areas for populations-at-risk. Joinpoint, multivariable and Poisson regression, and spatial methods were used to determine the trends and risks of disease in a low TB incidence state. General disease trends declined significantly by factors of -0.044838 from 1993-1998, and -0.061821 from 2001-2007; but, were disparate and increased for the foreign-born, African Americans (AA) and Latinos, and in long-term care settings. The average annual percentage change …

The Role Of Socs Proteins In Hiv Immune Evasion, Lisa Nowoslawski Akhtar

All ETDs from UAB

Upon human immunodeficiency virus (HIV) infection the host mounts a robust and multifaceted immune response. To achieve successful replication, HIV must possess a powerful arsenal of immune evasion weapons. While a complex strategy for HIV immune evasion has been described in the periphery, little is known about the mechanism allowing HIV to overcome the simple interferon (IFN)-ß-mediated innate immune defenses of the central nervous system (CNS). In light of the devastating cognitive dysfunction that is caused by HIV replication within the CNS, a better understanding of this mechanism is critical. Recent studies have shown that viral pathogens can induce the …

Mechanisms By Which Tra-8 Anti-Dr5 Antibody And Chemotherapy Enhance Cytotoxicity In Breast Cancer, Hope M. Amm

All ETDs from UAB

Breast cancer is the second leading cause of cancer-related death in American women and metastatic breast cancer has a 5-year survival rate of only 26%. Current targeted treatments for this disease include anti-estrogen strategies for estrogen receptor positive tumors (~60%) and anti-Her2/Neu strategies for tumors overexpressing this receptor (20-25%). A percentage of breast cancer patients, however, are resistant to these therapies and are left without any effective treatment options. One of the agents currently being investigated to improve breast cancer survival is TRA-8, an agonistic monoclonal antibody to death receptor 5 (DR5), which induces apoptosis in various types of cancer …

Determinants Of Self-Efficacy To Seek Care For Tuberculosis And Complete Tuberculosis Treatment Among Hiv-Positive Patients Attending Government Hiv/Aids Clincis In Honduras, Mayra Silvana Arias

All ETDs from UAB

control

Development Of A Mucosal Vaccine Protective Against Francisella Tularensis Infection, Amit R. Ashtekar

All ETDs from UAB

Francisella tularensis, a facultative intracellular, gram-negative coccobacillus, is the causative agent of tularemia and has been classified as a category A biological agent. Since there currently is no licensed vaccine available, in this study, we assessed the potential of a bivalent subunit vaccine comprising of DnaK and Tul4 to protect against respiratory tularemia. Intranasal immunization of C57BL/6 mice with DnaK, Tul4, and the adjuvant GPI-0100 resulted in mucosal and systemic antibody responses to DnaK and Tul4. In addition to antibody responses, this immunization regimen also induced both Th1 and Th2 cell-mediated immune responses specific for DnaK and Tul4. Finally, more …

A Dual Protease Inhibitor/Receptor Antagonist With Therapeutic Implications For Chronic Inflammatory Lung Diseases, Matthew Thomas Hardison

All ETDs from UAB

protein (CRP) and smoking, controlling for waist circumference (WC) and race, we find

Generation And Analysis Of The Oncolytic Efficacy Of A Conditionally Replicating Adenovirus Bearing Rgd Modifications On Pix And Fiber Capsid Proteins, Lena Jeanelle Gamble

All ETDs from UAB

Ovarian cancer is the leading cause of gynecological disease death in women. For the past two decades, scientists have attempted to perfect the use of adenovirus as an anti-cancer therapeutic agent. One major impediment to ovarian tumor infection with adenovirus has been dearth of adenovirus native receptor, Coxsackie and Adenovirus receptor, (CAR), on the surface of tumor cells. To address this problem, scientists have engineered CAR-independent adenoviruses which target the AlphavBeta3 and AlphavBeta5 by adding an arginine-glycine-aspartate (RGD) motif to the fiber knob of a conditionally replicating adenovirus (CRAd) Delta24FiberRGD CRAd. We hypothesize that incorporation of RGD into the pIX …

Hypothesis Testing Based On Pool Screening With Unequal Pool Sizes, Hongjiang Gao

All ETDs from UAB

Pool screening is a widely applied technique to estimate the prevalence of a rare event. This focus of this research is on developing statistical test of hypothesis procedures under the assumption that pool sizes are unequal but known. One of the proposed test procedures is , an exact test based on the number of positive pools (denoted by T). Another set of proposed test procedures is a modification of the likelihood ratio, Wald's and Score tests which are commonly-used likelihood-based tests. In paper 1, we derive the distribution of T which will be the basis of the exact test. Other …

The Mechanism Of Human Papillomavirus E7 Protein Mediated S-Phase Reentry In The Squamous Epithelium, Nicholas John Genovese

All ETDs from UAB

different heteroskedasticity consistent covariance matrix estimators (HCCM) under

The Influence Of Self-Concept, Physical Activity, And Sedentary Screen Time Activities On Blood Pressure In 11-13 Year Old Middle School Children, Elizabeth Di Benedetto Gulledge

All ETDs from UAB

The aims of this study were to: 1) examine associations between self-concept (SC), physical activity (PA), sedentary screen time (SST), and blood pressure (BP) and 2) determine the amount of variance explained by SC, PA, and SST in BP. The increase in SST along with decreases in PA may contribute to increases in BP. SC, PA and SST have been associated with BP in adolescents but less is known about middle school children. A sample of 116 (36 males; 80 females; 51 African American, 65 White) 6th and 7th grade11-13 year old students were recruited in a southeastern state. Participants …

Information Technology And Quality Of Care In Pediatric Hospitals, Gouri Gupte

All ETDs from UAB

The purpose of this dissertation is to examine the relationship between the adoption of information technology by pediatric hospitals and performance on several quality of care measures. This research is aimed at addressing a gap in literature by utilizing a relatively large sample size that examines health information technology adoption across institutions and utilizes validated quality indicators from Agency for Healthcare Research and Quality. The Donabedian evaluation model that encompasses "structure, process, and outcomes" provides the conceptual framework for the organization of this research, selection of variables, and analysis. Three secondary datasets were used, 2005 Information Technology Survey of the …

Exploration Of The Crosslinks Between Saccadic And Vergence Eye Movement Pathways Using Motor And Visual Perturbations, Kevin Paul Schultz

All ETDs from UAB

ANCOVA models to be non-orthogonal, we get similar results to the ANCOVA with

Parental Separation Anxiety And Shared Responsibility For Diabetes-Related Tasks In Adolescents Diagnosed With Type 1 Diabetes Mellitus, Kathryn Anne Sheppard

All ETDs from UAB

Type 1 diabetes mellitus (T1D) is most commonly diagnosed in children and young adults, and complications may be life-long as well as life threatening. Management of T1D has proven to be very challenging during adolescence, and parental involvement in diabetes management has been shown to improve adherence and glycemic control in children and adolescents. Middle adolescents should become increasingly responsible for diabetes-related tasks under the supervision and guidance of parents (shared management). However, adolescents spend less time with their family as they get older, resulting in parents' being unable to validate effective self-management; this inability may lead to anxiety about …

Self-Blood Pressure Monitoring, Stage Of Change, Medication Adherence, Self-Efficacy And Blood Pressure Control In Hypertensive Workers, Tonya Lynn Breaux-Shropshire

All ETDs from UAB

ABSTRACT According to the World Health Organization, hypertension is the leading cause of death in the world and it is one of the primary reasons patients seek health care. Prior to 2010, uncontrolled blood pressure (BP) rates were approximately 18%, despite the fact that prescribed medical treatment is available to adequately control patients' BP. It has been established that medication adherence is a major factor in controlling BP, and self-BP monitoring is highly recommended by the national guideline to improve blood pressure control. However, information related to assessing hypertensive patients' readiness to engage in health care treatment and self-monitoring is …

Association Between Birth Outcomes And Aflatoxin B1-Biomarker Levels Among Pregnant Women In Kumasi, Ghana, Faisal Mohammed Barbas Shuaib

All ETDs from UAB

Aflatoxins are fungal metabolites that contaminate staple food crops in many developing countries. Although studies have linked these toxins to adverse health outcomes, few studies have investigated the association between birth outcomes and aflatoxin B1-lysine adduct levels among pregnant women. The objective of this dissertation was to investigate the association between birth outcomes and aflatoxin B1- lysine adduct levels among pregnant women in Kumasi, Ghana. In a cross-sectional study of 755 pregnant women, Aflatoxin B1-lysine adduct (AF-ALB) levels were determined by High Performance Liquid Chromatography. AF-ALB associations were assessed as both continuous and categorical values. Analysis of variance (ANOVA) was …

Identifying Factors That Enhance Or Hinder The Utilization Of Strengths By Healthcare Managers, Gene C. Milton

Dissertations

The purpose of this study was to examine perceptions of strengths-use at Hackettstown Regional Medical Center (HRMC), and common factors and conditions that enhanced and hindered strengths-utilization among middle managers at HRMC, a 111-bed acute care facility in Hackettstown, New Jersey. The study identified factors and conditions that can be expanded and improved upon to promote strengths-use at HRMC in the future. The population for this explorative study was selected from approximately 200 full-time executives, managers, and staff at HRMC who took the StrengthsFinder Profile from January 2007 through June 2009. The vehicle used for data collection was 5 focus …

Awareness And Knowledge Of Hiv/Aids Among Female Indian University Students In South India And As Immigrants In The U.S.-Mexico Border Region, Thenral D. Mangadu

Open Access Theses & Dissertations

ABSTRACT

The prevention of HIV/AIDS is a major global public health goal. The Joint United Nations Programme on HIV and AIDS (UNAIDS) estimates that 33 million individuals are infected with HIV worldwide and over two million of these cases are from India. The main mode of transmission of HIV in India is heterosexual contact.

In the past decades there has been a steady increase in immigration rates from India to the U.S. Education and marriage are the main reasons for immigration from India to the U.S. In general, the frequently risky sexual and substance use behaviors of college students in …

Atopy In Us-Mexico Border Elementary School Children: A Pilot Study, Julia Laura Alvarez

Open Access Theses & Dissertations

Background and Significance. Atopy is a hypersensitivity disorder that mainly affects the mucous membranes and the skin. It is reported to be the most prevalent type of clinical allergy syndrome. Persons who have atopy suffer from various combinations of asthma, rhino-conjunctivitis and/or eczema. Atopy is defined as an inherited predisposition to generate IgE against common environmental allergens. Atopy is a type I hypersensitivity condition mediated by IgE immune response, while allergy is any excessive immune response to a foreign antigen. Thus, all atopic disorders are allergic response but some allergic conditions are not atopic per se.

The etiology of pediatric …

Evaluation Of Lumbosacral Orthosis In Flexion And Extension Movements Of Lumbar Spine., Norazian Abd Razak

Student Works (2010-2019)

Lumbosacral orthosis (LSO) is a type of spinal orthosis that has been recommended for abdominal support, pain management, and motion or positional control. By implemented radiographic technique, objectives of this study was to evaluate the changes of lumbar lordosis in flexion and extension of trunk movements with and without wearing the LSO measured by Cobb, Centroid, and Posterior Tangent techniques and to correlate the value of lordotic angles in particular posture. Ten healthy male subjects without any history of low back pain participated and a semi-rigid LSO was utilized. Antero-posterior and lateral radiographs of spine images during neutral, flexion, and …

Identification Of A Novel Cytokine Inducible Stat5 Phosphoserine Site (Ps193) That Positively Regulates Its Transcriptional Activity And Is Found Constitutively Activated In Certain Hematopoietic Cancers, Abhisek Mitra

Open Access Theses & Dissertations

Hematological malignancies such as leukemia and lymphoma, can develop from aberrant changes in the cell signaling molecules to drive their uncontrolled cellular proliferation and differentiation. Activation, maturation, expansion and differentiation of T cells are critically regulated by the dynamics of various transcription factors activated by a variety of cytokines. Additionally, multiple effector molecules that mediate these T cells dependent signals include the JAK (Janus Kinase)-STAT (Signal transducer and activator of transcription) cascade. These signaling proteins are activated in response to a broad array of cytokines. Constitutively activated JAKs and STATs have been described in several T cell malignancies. A growing …

A Deadline-Driven Epidemic Data Collection Protocol Suitable For Tracking Interpersonnel Rendezvous, Avranil Tah

Open Access Theses & Dissertations

This thesis describes a peer-to-peer wireless data collection algorithm that uses epidemic communication to propagate time-sensitive sequentially sampled data records from sensors toward infrastructure connected upload stations via mobile data mules. These records are labeled with sequence numbers and delivery deadlines, and are transmitted in sequential order. Delivery deadlines enable transmission prioritization and trigger alarms warning of violations.

The sequential ordering of records simplifies the protocols transmission-control and garbage collection mechanisms: only two monotonically increasing scalar sequence indices associated with a particular sensor must be exchanged between peers prior to selecting which records need to be communicated. One of these …

A Survey Of Variables Influencing Speech-Language Pathologists' Use Of Evidence-Based Practice In Clinical Settings, Ailbhe Tressan Cormack

Open Access Theses & Dissertations

Although the need for evidence-based practice (EBP) in speech-language pathology has been well attested, multiple barriers hamper its implementation. Purpose: The purpose of this study was to compare variables influencing the use of EBP by practicing speech-language pathologists (SLPs). Method: Eighty-five SLPs based out of different primary work settings in El Paso, Texas responded to a survey addressing: 1. attitudes and perceived barriers toward EBP, 2. exposure to EBP, research methodology and statistics in graduate courses, 3. time in practice, 4. practice setting(s), 5. amount and nature of support for EBP in work settings, and 6. use of research literature …

Predicting Walking Using The Theory Of Planned Behavior In A Worksite Wellness Setting., Lucia Hernandez

Open Access Theses & Dissertations

The study examined constructs from the Theory of Planned Behavior (TpB) as predictors of walking behavior among adult university employees. Specifically, attitudes, subjective norms, and perceived behavioral control towards walking were used to predict behavioral intentions to walk and concurrent walking behavior in a sample of adult university employees. The study is a secondary analysis of data already collected on a sample of 118 employees enrolled in a Worksite Wellness Program from a large southwestern university who completed a self-administered questionnaire regarding, TpB constructs and actual walking behavior. The questions from the survey where derived from the Theory of Planned …