Medicine and Health Sciences Commons^™

A Study Of An Uncharacterized Penicillium Species Isolated From A Hypersaline Pond In San Salvador, Bahamas, Virginia Elizabeth Hopkins

Theses and Dissertations

A large number of facultative marine fungi are unexplored (Lai et al., 2007). They exist in the hypersaline environment with reduced growth and metabolism for an indeterminable period of time and are believed to have no ecological role. Here we report the discovery of one novel facultative Penicillium species that we named Penicillium virginium. We show that when transferred from its native ecosystem, a salt pond in San Salvador, Bahamas, to a laboratory fungal growth medium, Penicillium virginium demonstrates a higher growth rate in absence of salt than in presence of salt confirming that it is a facultative marine fungus. …

Dietary Inflammatory Index And Its Relationship With Inflammation, Metabolic Biomarkers And Mortality, Nitin Shivappa

Theses and Dissertations

Background: Diet and its components are known to play an important factor in the process of inflammation and in turn on the health effects that are related to inflammation like cancer, and cardiovascular diseases. Previous research so far has mainly looked at the effect of specific food or nutrients on inflammation and health outcomes. In this regard a new literature derived and population based dietary index called Dietary Inflammatory Index (DII) was developed after carefully screening around 6000 articles that looked at the association between 45 food parameters and 6 commonly studied inflammatory markers. The list of food parameters includes …

Longitudinal Changes In The Inflammatory Potential Of Diet And Risk Of Cancer In Women, Fred Kinyuytabung

Theses and Dissertations

Introduction: The dietary inflammatory index (DII) assesses an individual’s overall diet quality with regards to its inflammatory potential on a continuum from maximally anti-inflammatory (lower or healthier DII scores) to maximally pro-inflammatory (higher or unhealthy DII scores). The DII measured at one point in time has been associated with cancer risk in previous studies; however, data are lacking regarding the change in DII over time and how these changes impact cancer risk. We assessed changes in the DII, and evaluated associations between cumulative history, and changes over time in dietary inflammatory potential, and risk of colorectal cancer (CRC) and breast …

Two Studies Of Family-Centered Care Family-Centered Care And Shared Decision Making: Are They The Same Construct? And The Association Of Family-Centered Care And Shared Decision Making With Receipt Of All Needed Prescription Drugs And Emergency Department Visits In Children With Asthma, Barbara Lee Brumbaugh

Theses and Dissertations

Family-Centered Care (FCC) is considered the standard of care in pediatrics, being affirmed in 2003 by the American Academy of Pediatrics (AAP). Family centered practices center around five specific provider actions: (1) did the provider spend enough time; (2) did the provider listen carefully; (3) was the provider sensitive to the needs of the family, including their values and customs; (4) did the provider provide information as needed; (5) did the provider make the caregiver feel like a partner in the care of the child. In addition to FCC practices, shared decision making (SDM) has been indicated as important in …

Decreasing The Incidence Of Tuberculosis In Renal Transplant Patients: A Single Center Review, Heidi Dauter Msn, Fnp-Bc, Cctc, Brandi Kolokas Ccma, Lynsey S. Biondi Md, Facs

Department of Surgery

No abstract provided.

First-Year Students' Perspectives On Reasons For And Prevention Of Their Own Alcohol Overdose, Janet Reis

University Author Recognition Bibliography: 2014

Two hundred twenty-six first-year students enrolled at a large, public Midwest university and deemed to require an emergency transport for a potential alcohol overdose completed a brief questionnaire on the student's perceptions of why the event occurred, what might have happened to prevent the overdose situation, and personal assessment of experience with alcohol. The explanations for the event revolve around personal decision making (made decision to drink too much, absence of drinking control behaviors) as opposed to peer influence. Similarly, factors selected as preventing an alcohol overdose focused on knowing one's own tolerance, plus having a buddy system to slow …

Increasing Patients’ Knowledge In Transmission Of Bacterial Vaginosis And Its Treatment Regimens, Debra Garner

Dissertations

Research has shown bacterial vaginosis to be one of the most common vaginal disorders in women of child bearing age (Chen, Tian, & Beigi, 2009; Centers for Disease Control, 2012; Menard, 2011). Each year many women are seen by their gynecologist, sexually transmitted infection (STI) clinics, and emergency rooms (ER) for complaints of having malodorous discharge (Bradshaw, et al., 2005). Several STI’s and adverse pregnancy outcomes have been attributed to women having bacterial vaginosis (Bradshaw, et al, 2005; Chen, et al.2009; Elkins, & Mayeaux, 2010). Women are predisposed to bacterial vaginosis by the use of wearing non cotton underwear, douching, …

Rn-Bs Online Students' Perceptions Of Presence Using A Virtual Meeting Room, Michelle A. Hall

Regis University Student Publications (comprehensive collection)

Abstract Online nursing education has gained in popularity with over 400 RN-BSN programs in the U.S. Online learning allows students to remain in their communities and to continue working while advancing their education. The drawback for many students is the isolating nature of a totally online education. Students can feel disconnected and isolated in the asynchronous format. Students in an online RN-BS program at a large Northwestern University shared their sense of isolation and need for communication with the instructor in the totally online format. It was suggested that the use of a Virtual Meeting Room (VMR) would address this …

Provider Perception Of Patient Satisfaction If Antibiotics Are Not Given For Upper Respiratory Infection, Robyn Doniel Drake

Dissertations

The purpose of this project was to assess if advanced practice nurse practitioners perceived patient satisfaction of patients seen in Metropolitan Retail Clinics was improved after educational materials were given to explain when antibiotics work. I hypothesized that provider perception of patient satisfaction would decrease unnecessary prescribing of antibiotics after providing patient education? This project used questionnaires to collect data from control and intervention groups to demonstrate a gain in provider perception if patient satisfaction after education was given in the intervention group. The results of this project did not reveal to the primary investigator what was originally assumed, that …

Best Practices In High Fidelity Patient Simulation To Enhance Higher Order Thinking Skills, Kathryn S. Mock

Theses and Dissertations

Undergraduate nursing education has begun to use very expensive and time intensive high fidelity simulation activities without making full use of the ability to build higher order thinking skills in students. Current research in high fidelity patient simulation has tended to be subjective and focus on critical thinking. However, reflective thinking habits of mind must be in place before full use can be made of critical thinking skills. A comprehensive search of all reflective thinking literature used in conjunction with simulated patient experiences by healthcare students was undertaken. A guideline

was created for nurse faculty to use that outlined current …

Effects Of Pde4 Pathway Inhibition In Rat Experimental Stroke, Fan Yang, Rachita K. Sumbria, Dong Xue, Chuanhui Yu, Dan He, Shuo Liu, Annlia Paganini-Hill, Mark J. Fisher

Pharmacy Faculty Articles and Research

PURPOSE: The first genomewide association study indicated that variations in the phosphodiesterase 4D (PDE4D) gene confer risk for ischemic stroke. However, inconsistencies among the studies designed to replicate the findings indicated the need for further investigation to elucidate the role of the PDE4 pathway in stroke pathogenesis. Hence, we studied the effect of global inhibition of the PDE4 pathway in two rat experimental stroke models, using the PDE4 inhibitor rolipram. Further, the specific role of the PDE4D isoform in ischemic stroke pathogenesis was studied using PDE4D knockout rats in experimental stroke. METHODS: Rats were subjected to either the …

The Role Of Ape/Ref-1 In Hepatocellular Carcinoma Progression, Zhen Yang, Sun Yang, Bobbye J. Misner, Feng Liu-Smith, Frank L. Meyskens

Pharmacy Faculty Articles and Research

Hepatocellular carcinoma (HCC) is responsible for a third of the estimated cancer-caused deaths worldwide. To deeply understand the mechanisms controlling HCC progression is of primary importance to develop new approaches for treatment. Apurinic/apyrimidinic endonuclease-1/redox effector factor 1 (APE/Ref-1) has been uncovered elevated in various types of cancer, including HCC. Additionally, HCC progression is always correlated with elevated copper (Cu). Our previous data demonstrated that Cu treatment initiated APE/Ref-1 expression and its downstream targets. Therefore, we hypothesized that APE/Ref-1 may be involved in HCC progression through mediating the effect of Cu to its signaling cascades. Following different treatments, human HCC cell …

Brief Intervention For Truant Youth Sexual Risk Behavior And Marijuana Use, Richard Dembo, Rhissa Briones-Robinson, Kimberly Barrett, Rocio Ungaro, Ken C. Winters, Steven Belenko, Lora M. Karas, Laura Gulledge, Jennifer Wareham

Faculty Publications

Substance use and sexual risk behaviors are common among adolescents, but research has focused attention on alcohol use. Much less is known about the relationship of marijuana use and sexual risk behavior among high-risk, especially truant, youths. We report interim findings from a NIDA-funded experimental, brief intervention (BI) study involving truant youths and their parents/guardians. Longitudinal data were analyzed to study (1) the relationships between the youths' marijuana use and sexual risk behavior and (2) the effects of a substance use BI on their marijuana use and sexual risk behavior. A growth model analysis for parallel processes was conducted to …

The Influence Of Race/Ethnicity And Place Of Service On Breast Reconstruction For Medicare Beneficiaries With Mastectomy, Tracy Onega, Julie Weiss, Karla Kerlikowske, Karen Wernli

Dartmouth Scholarship

Racial disparities in breast reconstruction for breast cancer are documented. Place of service has contributed to disparities in cancer care; but the interaction of race/ethnicity and place of service has not been explicitly examined. We examined whether place of service modified the effect of race/ethnicity on receipt of reconstruction. We included women with a mastectomy for incident breast cancer in SEER-Medicare from 2005-2009. Using Medicare claims, we determined breast reconstruction within 6 months. Facility characteristics included: rural/urban location, teaching status, NCI Cancer Center designation, cooperative oncology group membership, Disproportionate Share Hospital (DSH) status, and breast surgery volume. Using multivariable logistic …

College Of Public Health News, Georgia Southern University

College of Public Health: News & Publications

• ASPA's Peace Award

Understanding Male Nursing Student Perceptions Of The Influence Of Gender: A Qualitative Case Study Approach Of Students, Faculty, And Administration In A Pacific Northwest Nursing Program, Jennifer Anne Anderson

Dissertations and Theses

In contemporary American society, the nursing profession is predominantly made up of white women. Currently, males make up only 6.8 percent of the three million nursing professionals in the U.S. and they are considered gender minorities within the nursing profession and within nursing education. As gender minorities, male students are identified as experiencing nursing programs and the practice of nursing differently than their female counterparts. The purpose of this single instrumental, within site case study was to explore the learning environment for male nursing students and to investigate the nature of the interactions between nursing faculty and male undergraduate students …

Fieldwork Summary Report-World Health Organization, Anna Cross

Master's Projects and Capstones

My fieldwork experience took place at the World Health Organization in Geneva, Switzerland, where I completed over 420 hours of practical experience. My fieldwork focused in the field of mental health, working on disorders management (psychosis, depression and suicide) and evidence-based research, but more specifically focusing on schizophrenia, premature death in severe mental disorders, and maternal mental health. Although my fieldwork focused within these areas, for the purpose of this final report, I have opted to focus on my contributions to the research around schizophrenia and premature death within severe mental disorders. Specifically, I contributed to multiple fact/information sheets for …

Cc2d1a Regulates Human Intellectual And Social Function As Well As Nf-Κb Signaling Homeostasis., M. Chiara Manzini, Lan Xiong, Ranad Shaheen, Dimira E Tambunan, Stefania Di Costanzo, Vanessa Mitisalis, +15 Additional Authors

Pharmacology and Physiology Faculty Publications

Autism spectrum disorder (ASD) and intellectual disability (ID) are often comorbid, but the extent to which they share common genetic causes remains controversial. Here, we present two autosomal-recessive "founder" mutations in the CC2D1A gene causing fully penetrant cognitive phenotypes, including mild-to-severe ID, ASD, as well as seizures, suggesting shared developmental mechanisms. CC2D1A regulates multiple intracellular signaling pathways, and we found its strongest effect to be on the transcription factor nuclear factor κB (NF-κB). Cc2d1a gain and loss of function both increase activation of NF-κB, revealing a critical role of Cc2d1a in homeostatic control of intracellular signaling. Cc2d1a knockdown in neurons …

Nutrition, Appetite And Weight Loss In Elders Living In Long-Term Care Facilities, Karene Marie Goodman

Dissertations

Abstract Elders living in long-term care facilities often experience weight loss. Weight loss in elders has been shown to increase their risk of death. Existing research has identified numerous factors associated with appetite and weight loss in elders. Dementia, depression, acute and chronic illness, and medications have all been identified as potential causes of decreased appetite and weight loss in elders. Only a few nutritional and appetite assessment tools exist, and these tools are not widely used in long-term care facilities. The purpose of this descriptive study was to validate the Simplified Nutritional Appetite Questionnaire (SNAQ), an appetite assessment tool …

Safety And Immunogenicity Of Human Serum Albumin-Free Mmr Vaccine In Us Children Aged 12–15 Months, Maurice A. Mufson, Clemente Diaz, Michael Leonardi, Christopher J. Harrison, Stanley Grogg, Antonio Carbayo, Simon Carlo-Torres, Robert Jean Freau, Ana Quintero-Del-Rio, Gisele Bautista, Michael Povey, Christopher Da Costa, Ouzama Nicholson, Bruce L. Innis

Internal Medicine

Background: M-M-RTMII (MMRII; Merck & Co) is currently the only measles-mumps-rubella (MMR) vaccine licensed in the United States. Another licensed vaccine would reinforce MMR supply. This study assessed the immunogenicity of a candidate vaccine (PriorixTM, GlaxoSmithKline Vaccines [MMR-RIT]) when used as a first dose among eligible children in the United States.

Methods: In this exploratory Phase-2, multicenter, observer-blind study, 1220 healthy subjects aged 12–15 months were randomized (3:3:3:3) and received 1 dose of 1 of 3 MMR-RIT lots with differing mumps virus titers (MMR-RIT-1 [4.8 log10]; MMR-RIT-2 [4.1 log10]; MMR-RIT-3 [3.7 log10] CCID50) or MMRII co-administered with hepatitis Avaccine (HAV), …

Cyclic Di-Gmp-Dependent Signaling Pathways In The Pathogenic Firmicute Listeria Monocytogenes, Li-Hong Chen, Volkan K. Köseoğlu, Zehra T. Güvener, Tanya Myers-Morales, Joseph M. Reed, Sarah E. F. D'Orazio, Kurt W. Miller, Mark Gomelsky

Microbiology, Immunology, and Molecular Genetics Faculty Publications

We characterized key components and major targets of the c-di-GMP signaling pathways in the foodborne pathogen Listeria monocytogenes, identified a new c-di-GMP-inducible exopolysaccharide responsible for motility inhibition, cell aggregation, and enhanced tolerance to disinfectants and desiccation, and provided first insights into the role of c-di-GMP signaling in listerial virulence. Genome-wide genetic and biochemical analyses of c-di-GMP signaling pathways revealed that L. monocytogenes has three GGDEF domain proteins, DgcA (Lmo1911), DgcB (Lmo1912) and DgcC (Lmo2174), that possess diguanylate cyclase activity, and three EAL domain proteins, PdeB (Lmo0131), PdeC (Lmo1914) and PdeD (Lmo0111), that possess c-di-GMP phosphodiesterase activity. Deletion of all phosphodiesterase …

Cyclic Di-Gmp-Dependent Signaling Pathways In The Pathogenic Firmicute Listeria Monocytogenes, Li-Hong Chen, Volkan K. Köseoğlu, Zehra T. Güvener, Tanya Myers-Morales, Joseph M. Reed, Sarah E. F. D'Orazio, Kurt W. Miller, Mark Gomelsky

Microbiology, Immunology, and Molecular Genetics Faculty Publications

We characterized key components and major targets of the c-di-GMP signaling pathways in the foodborne pathogen Listeria monocytogenes, identified a new c-di-GMP-inducible exopolysaccharide responsible for motility inhibition, cell aggregation, and enhanced tolerance to disinfectants and desiccation, and provided first insights into the role of c-di-GMP signaling in listerial virulence. Genome-wide genetic and biochemical analyses of c-di-GMP signaling pathways revealed that L. monocytogenes has three GGDEF domain proteins, DgcA (Lmo1911), DgcB (Lmo1912) and DgcC (Lmo2174), that possess diguanylate cyclase activity, and three EAL domain proteins, PdeB (Lmo0131), PdeC (Lmo1914) and PdeD (Lmo0111), that possess c-di-GMP phosphodiesterase activity. Deletion of all …

Exploring The Effect Of Solution Speciation On Crystallization Outcome, David M. Harvey, Arjun Kalra, Tonglei Li

The Summer Undergraduate Research Fellowship (SURF) Symposium

In the field of pharmaceuticals, the crystallization process significantly impacts the purity, morphology and polymorphism of active pharmaceutical ingredients (API), all of which are important in drug development. Polymorphism is the existence of more than one solid-state form of the same chemical entity. Tolfenamic acid (TFA), a Non-Steroid Anti-inflammatory drug (NSAID), has been shown to exhibit a unique physical phenomenon called concomitant polymorphism, whereby two polymorphs crystallize from the solution simultaneously. From previous work, it has been established that solution speciation i.e. the presence of monomers or dimers of TFA in solution is concentration and temperature dependent. This study correlates …

Cellular Uptake Of Drug Nanocrystals, Alexandra R. Seybold, Tonglei Li, Yan Chen

The Summer Undergraduate Research Fellowship (SURF) Symposium

Systemic toxicity and poor solubility of existing chemotherapeutic drugs piqued an interest in the use of nanocrystals for chemotherapy. To increase cytotoxicity, surface coating of nanocrystals is of interest to enhance tumor targeting and reduce treatment toxicity. As such, we tested in this project various coated paclitaxel nanocrystals on cancer cells for determining the efficacy of surface coating. An IC₅₀ assay was chosen to determine the cytotoxicity of surface-coated paclitaxel nanocrystals; the lower the IC₅₀ value, the higher the efficacy of the drug. Using the Sulforhodamine B method, paclitaxel, paclitaxel nanocrystals, and polymer coated paclitaxel nanocrystals were tested …

Using Collagen Binding Poly(N-Isopropylacrylamide) Nanoparticles To Prevent Intravascular Platelet Adhesion And Activation, Anna E. Searle, Alyssa Panitch, James Mcmasters

The Summer Undergraduate Research Fellowship (SURF) Symposium

Balloon angioplasty, the most prevalent non-surgical treatment for Atherosclerosis, damages the endothelial layer of the artery, baring an underlying collagenous layer, which causes platelet adhesion and activation and eventual thrombosis and intimal hyperplasia. Previous work in our lab has used a collagen-binding peptidoglycan, dermatan-sulfate-SILY (DS-SILY), that has been shown to bind to type I collagen and prevent platelet adhesion and activation. Our goal is to fabricate nanoparticle-SILY by cross-linking SILY to a poly(N-isopropylacrylamide) (NIPAm) nanoparticle instead of a DS backbone, while retaining the SILY’s high collagen binding affinity and platelet inhibition capacity observed in DS-SILY. Using a biotin-streptavidin assay, we …

Validating Hemoglobin Saturation And Dissolved Oxygen In Tumors Using The Oxylab Probe And Photoacoustic Imaging, Jenna Burnett, Justin Sick, Ms, Marc Mendonca, Keith Stantz, Phd

The Summer Undergraduate Research Fellowship (SURF) Symposium

The goal of this experiment is to validate the relationship between hemoglobin saturation (SaO₂) and partial pressure of dissolved oxygen (pO₂) in breast tumors in mice using photoacoustic computed tomographic (PCT) imaging and OxyLite probe, respectively. In its simplest form, the relationship is described by the dissociation curve, or Hill’s equation, for hemoglobin, and is modeled as a sigmoidal curve that is a function of two parameters – the Hill coefficient, n, and the net association constant of HbO₂, K (or pO₂ at 50% SaO₂). First, a calibration study to validate …

Tissue Engineering: Applications In Developmental Toxicology, Stephanie N. Thiede, Nimisha Bajaj, Kevin Buno, Sherry L. Voytik-Harbin

The Summer Undergraduate Research Fellowship (SURF) Symposium

In vivo toxicology assays are expensive, low-throughput, and often not predictive of a human response. Three-dimensional in vitro human cell-based tissue systems incorporating cell-cell and cell-matrix interactions have promise to provide high-throughput, physiologically-relevant information on the mechanism of the toxin and a more accurate assessment of the toxicity of a chemical before progression to human trials. Quantification of the disruption of vasculogenesis, the de novo formation of blood vessels from endothelial progenitor cells, can serve as an appropriate indicator of developmental toxicity since vasculogenesis is critical to the early development of the circulatory system. The current routinely used in vitro …

Three Dimensional Quantification Of Angiotensin Ii-Induced Murine Abdominal Aortic Aneurysms Using High Frequency Ultrasound, Amelia R. Adelsperger, Alexa A. Yrineo, Hilary D. Schroeder, Ashley Nicole Blaize, Katherine E. Wilson, Evan H. Phillips, Frederick W. Damen, Craig J. Goergen

The Summer Undergraduate Research Fellowship (SURF) Symposium

Abdominal aortic aneurysms (AAAs), a localized dilation of the vessel wall of 50% or more above normal, claims approximately 14,000 U.S. lives yearly due to aortic rupture. This commonly asymptomatic disease can only be treated by endovascular stent grafts or invasive surgery, usually after the AAA diameter reaches 5 cm. Because these treatment methods carry serious risk, stem cell therapy is being explored in order to provide a low risk option for managing smaller AAAs. To determine if stem cell therapy, once administered, could stabilize or reduce AAA growth, baseline 3D ultrasound measurements in a control group were first needed. …

Formation Of Lactalbumin Nanoparticles By Desolvation Method, Menglu Gao, Jozef Kokini, Luis Fernando Maldonado-Mejia

The Summer Undergraduate Research Fellowship (SURF) Symposium

Protein nanoparticles are ideal carriers for bioactive compounds such as nutraceuticals and drugs because they are biodegradable, less immunogenic and non-toxic and can be nanoparticulated. This study focuses on the desolvation method to form lactalbumin protein nanoparticles. Lactalbumin is soluble in water and insoluble in many organic solvents. Different solvent/non-solvent ratios are evaluated in this research project for the effect they have on the size, PDI and stability of protein nanoparticles. Different methods including sonication and centrifugation were used and compared in terms of their effectiveness to produce small nanoparticles during fabrication of the nanoparticles. Data collected including protein nanoparticles …

Effect Of Twin Screw Granulator Process Parameters On Granule Attributes, Haosheng Xu, Ridade Sayin, James Litster

The Summer Undergraduate Research Fellowship (SURF) Symposium

Twin screw wet granulation has been considered as an efficient and effective technique of manufacturing granules (agglomerates made up of small particles) and has been widely applied in pharmaceutical industry. However, narrow granule size distributions are difficult to achieve. This study aims to elucidate the effect of process parameters such as liquid feed rate and screw configuration on the granule attributes through granule characterization. The methods used are sieve analysis (for size distribution), liquid distribution (determining the dye concentration in the granules) and density and porosity (percentage gas volume in the granule) analyses. A sieve shaker is used to divide …