Medicine and Health Sciences Commons^™

Analysis Of Gaba And Glutamate In The Mouse Dorsal Striatum, Stella Wisidagamage

Wayne State University Theses

ABSTRACT

ANALYSIS OF GABA AND GLUTAMATE IN MICE BRAIN

by

STELLA WISIDAGAMA

May 2011

Advisor: Dr. Tiffany Mathews

Major: Chemistry (Analytical)

Degree: Master of Science

GABA and glutamate are the predominant inhibitory and excitatory amino acid neurotransmitters in the central nervous system (CNS), respectively. However, their altered levels cause several neurological diseases including Parkinson's and Huntington's disease, schizophrenia, and epilepsy. It is important to measure their levels in the extra- and intracellular environments to better understand and develop improved therapeutics that will treat these neurological disorders. The principle aim of this study is to study the impacts of different endogenous …

Neuropathological Diagnosis Of Alzheimer's Disease: The Relationship Between Postmortem Assessment, Cognitive Function And Functional Status In Centenarians, Emily Elizabeth Richardson

Wayne State University Theses

Several sets of neuropathological criteria have been used for the postmortem diagnosis of Alzheimer's Disease (AD), but few studies have examined these criteria in the oldest old. For this study, we examined a sample of centenarians, all of whom received AD assessments using four different neuropathological criteria: Khachaturian, Braak and Braak, CERAD, and NIA-R. Findings indicate that NIA-R criteria differed significantly from CERAD and Khachaturian criteria. In addition, NIA-R and CERAD criteria predicted performance on the MMSE and three FOME indices; Braak and Braak criteria predicted performance on the MMSE and one FOME index. Finally, we examined the relationship between …

Inhibition Of Cathepsin B Activity Attenuates Extracellular Matrix Degradation And Inflammatory Breast Cancer Invasion, Bernadette C. Victor, Arulselvi Anbalagan, Mona M. Mohamed, Bonnie F. Sloane, Dora Cavallo-Medved

Wayne State University Associated BioMed Central Scholarship

Abstract

Introduction

Inflammatory breast cancer (IBC) is an aggressive, metastatic and highly angiogenic form of locally advanced breast cancer with a relatively poor three-year survival rate. Breast cancer invasion has been linked to proteolytic activity at the tumor cell surface. Here we explored a role for active cathepsin B on the cell surface in the invasiveness of IBC.

Methods

We examined expression of the cysteine protease cathepsin B and the serine protease urokinase plasminogen activator (uPA), its receptor uPAR and caveolin-1 in two IBC cell lines: SUM149 and SUM190. We utilized a live cell proteolysis assay to localize in real …

Providing Mobile Librarian Service To A College Of Nursing To Increase Interactions And Transactions: One Wayne State University, Science And Technology Librarian's Experience, Nancy A. Wilmes

Library Scholarly Publications

A mobile librarian service to the Wayne State University College of Nursing was developed to provide in-person reference and research support. This service has been successfully used for eight semesters by College of Nursing faculty, graduate students, and some undergraduates for support of research and course work. This article will address the details and provide a description of the service.

Objective Physical Activity And Sleep Characteristic Measurements Using A Triaxial Accelerometer In Eight Year Olds, Susan Ann Harrington

Wayne State University Dissertations

Background: Secular trends demonstrate that young children are less active and sleep less. Inequity in an individual's energy balance is known to have poor health outcomes. Academic achievement, academic behavior, and weight status are proxy indicators for health and psychosocial outcomes in this study. Current guidelines in place for sleep and physical activity in childhood are the result of data collected in the form of self-reports. Quantification and qualification of physical activity dimensions and sleep characteristics are essential not only for the purpose of clearly establishing parameters but also for the intent of verifying optimal health outcomes and evaluating interventions …

Mechanisms Of Translation Arrest Following Focal Brain Ischemia, Monique K. Lewis

Wayne State University Dissertations

MECHANISMS OF TRANSLATION ARREST FOLLOWING FOCAL BRAIN

ISCHEMIA

by

MONIQUE K. LEWIS

August 2011

Advisor: Dr. Donald DeGracia

Major: Physiology

Degree: Doctor of Philosophy

The loss of blood flow to the brain is termed ischemia and the subsequent resumption of blood flow is termed reperfusion. Brain ischemia and reperfusion (I/R) occurs primarily following resuscitation from cardiac arrest and stroke and presents one of the most significant clinical challenges. At present, there are no clinically effective pharmacologic interventions to halt brain damage following I/R. The major Aim of this dissertation will be to investigate possible mechanisms involved in neuron death following …

Work-Family Boundary Management Strategies: Examining Outcomes, And The Role Of Fit, Madhura Chakrabarti

Wayne State University Dissertations

As more and more people attempt to effectively manage the simultaneous demands of work and family, researchers are now trying to investigate the various ways by which people choose to do so. The present study investigated the concept of boundary management strategies that describes the work-family interface in terms of cognitive, physical, and behavioral boundaries between work and family domains that individuals actively try to manage in order to balance the two worlds. Research in boundary management strategies has been minimal due to the the novelty of the construct. In this study, specific individual and organizational outcomes like work-family conflict, …

Effects Of Two Group Approaches On Life Satisfaction And Mood Of Older Females In Nursing Homes, Bede Redpath Ryan

Wayne State University Dissertations

The purpose of this study was to examine the effects of two group counseling therapy interventions on levels of life satisfaction and mood disturbance of older women, age 65+, living in two Detroit-based skilled nursing home facilities. This quasi-experimental, two-treatment group design examined the pretest-posttest data of two group counseling therapy interventions, Group Art Therapy (GAT) and Group Life Stories Narrative Therapy (GLSNT). Seventeen participants completed the bi-weekly, 90-minute sessions, over a four-week period. A univariate ANCOVA with group membership as fixed independent variable was used to compare life satisfaction post scores with pre scores as covariates. Mean scores were …

Computer Simulation In Mass Emergency And Disaster Response: An Evaluation Of Its Effectiveness As A Tool For Demonstrating Strategic Competency In Emergency Department Medical Responders, Daniel Joseph O'Reilly

Wayne State University Dissertations

This study examined the capability of computer simulation as a tool for assessing the strategic competency of emergency department nurses as they responded to authentically computer simulated biohazard-exposed patient case studies. Thirty registered nurses from a large, urban hospital completed a series of computer-simulated case studies of virtual biohazard-exposed patients. The completed case studies were assessed by the host computer according to computer-programmed criteria. The same case studies were also assessed by a trio of emergency medicine physicians acting as subject matter experts according to their own criteria. The results of this study demonstrated a significant correlation between computer-assessed and …

The Potential Role Of Innate Immunity In The Pathogenesis Of Post-Operative Adhesions, Jennell White

Wayne State University Dissertations

Post-operative adhesion development occurs in the vast majority of patients following abdominal surgery and is a natural occurrence of peritoneal-wound healing. These fibrous bands may form within the first 5-7 days post-surgery and have the ability to cause a distortion in the normal anatomical positioning of abdominal organs. Consequently, adhesions are major contributors to small bowel obstruction, infertility, and severe pelvic and abdominal pain. Physiological processes responsible for adhesion formation remain obscure though it is believed to involve cell migration, proliferation, and differentiation of several cell types including mesothelial cells, fibroblasts, and inflammatory and immune cells. Substances released from these …

Processing Random Signals In Neuroscience, Electrical Engineering And Operations Research, Kalyan Raman

Wayne State University Dissertations

The topic of this dissertation is the study of noise in electrical engineering, neuroscience, biomedical engineering, and operations research through mathematical models that describe, explain, predict and control dynamic phenomena. Noise is modeled through Brownian Motion and the research problems are mathematically addressed by different versions of a generalized Langevin equation. Our mathematical models utilize stochastic differential equations (SDEs) and stochastic optimal control, both of which were born in the soil of electrical engineering. Central to this dissertation is a brain-physics based model of cerebrospinal fluid (CSF) dynamics, whose structure is fundamentally determined by an electrical circuit analogy. Our general …

Human Trophoblast Survival And Invasion In The Developing Placenta: Autocrine Regulation By Hbegf, Philip Jessmon

Wayne State University Dissertations

HBEGF is a multifunctional protein in early pregnancy that induces cytotrophoblast (CTB) cell differentiation to an invasive phenotype, protects against apoptosis, and is involved in an autocrine signaling mechanism that leads to its own protein synthesis. CTBs exist in a low O₂ environment during the first 10 weeks of implantation, during which they invade the decidualized uterine stroma. Inhibitors of intracellular signaling pathways demonstrated that at 20% O₂ HBEGF induces an increase in cell migration through the ERK, MAPK14, JNK, or PIK3 pathways downstream of signaling through its ERBB receptors. Also downstream of these four pathways, HBEGF induces …

Associations Of Trauma, Nightmares, And Quality Of Life In Urban African American Adolescents, Barbara Peterson

Wayne State University Dissertations

Purpose: Exposure to trauma in youth is pervasive particularly among urban, African American teens. Nightmares are considered a hallmark symptom of Posttraumatic Stress Disorder (PTSD) and are associated with poor sleep quality and poor quality of life in adults. Research about nightmares in adolescents is lacking, and these relations have not been previously examined. The purpose of this study was to examine the relationships among nightmare frequency, nightmare distress, PTSD severity, sleep quality, and quality of life in teens.

Theory: The Roy Adaptation Model was used to conceptualize nightmares as focal stimuli reducing adaptation in teens. Nightmares may heighten memories …

Effect Of Dimethylarginine Dimethylaminohydrolase In The Development Of Salt Sensitivity, Samar Abdulla Nasser

Wayne State University Dissertations

Salt sensitivity is associated with a rise in blood pressure (BP) occurring during sodium loading and/or a fall in BP during sodium restriction that exceeds random fluctuations in BP. Salt sensitivity is more common in African American than Caucasian hypertensives and is also present, in normotensive African Americans. The mechanism or mechanisms resulting in salt-sensitive hypertension are multiple and include both activation of the renin angiotensin system via increases in angiotensin II and reductions in the endogenous vasodilator, nitric oxide (NO). An important means of NO downregulation is through asymmetric dimethylarginine (ADMA), an endogenous NO inhibitor, which is largely metabolized …

Effects Of Managed Care On The Health And Health-Care Of The Non-Elderly With Diabetes, Meihua Lu

Wayne State University Dissertations

This dissertation attempts to examine the quality effect of managed care plans (as compared with traditional fee-for-service plans, or FFS) on the health outcome and health care use of patients with diabetes. As the number of diabetics is growing rapidly with many of them are relying on managed care plans, knowing better the effects of different plans on health status and health care utilization is of great interest and significance to consumers, employers, and policymakers, especially at a time that universal health care is under being implemented.

Using up-to-date data from MEPS, a nationally representative survey, I compared 484 HMO …

The Role Of The Sparc Acidic Domain And Egf-Like Module In Glioma Migration, Invasion, And Signaling, Heather M. Mcclung

Wayne State University Dissertations

THE ROLE OF THE SPARC ACIDIC DOMAIN AND EGF-LIKE MODULE IN GLIOMA MIGRATION, INVASION, AND SIGNALING

HEATHER M. MCCLUNG

Advisor: Sandra A. Rempel, Ph.D.

Major: Pharmacology

Degree: Doctor of Philosophy

We have previously shown that Secreted Protein Acidic and Rich in Cysteine (SPARC) is upregulated in all astrocytoma grades and increases tumor cell migration and invasion. It is thought that different domains within the protein may regulate SPARC functions, suggesting domain-specific targeting to inhibit invasion. To enhance our understanding of SPARC-mediated invasion, we first confirm, at the protein level, our previous cDNA array results, that SPARC increases expression of the …

Frazzled And Abelson Interact To Regulate The Actin Cytoskeleton In Drosophila, Bridget Elsa Varughese

Wayne State University Dissertations

Guidance receptors such as Frazzled affect cell shape and motility by directly or indirectly modulating the cytoskeleton. Fra is particularly needed for the formation of the posterior commissures in a developing Drosophila embryo. The cytoplasmic tyrosine kinase, Abelson Kinase (Abl) enhances the loss of commissures observed in fra mutant. Abl physically interacts with Frazzled to help guide commissural axons across the midline. Furthermore, the loss of commissural axons is only seen when the actin dynamics are perturbed. Abl is also known to regulate actin-dependent processes underlying formation of filopodia, microspikes and membrane ruffles. So, we established a Drosophila S2 cell …