Medicine and Health Sciences Commons^™

Evaluating The Biological Activities Of Novel Histone Deacetylase Inhibitors (Hdaci) In Adherent And Nonadherent Tumor Cell Lines, Samer Alanani

Theses and Dissertations

Epigenetic dysregulations are linked to many human diseases including neurodegenerative disorders, immunodeficiencies, cardiac disease, and most notably cancer. Changes in the mechanisms of histone modifications have been recognized as hallmarks of carcinogenesis. One of these modifications is histone acetylation which is regulated by the activities of histone acetyltransferases (HATs) and histone deacetylases (HDACs). The reversible actions of these enzymes govern the acetylome and maintain its balance allowing for activation and repression of gene transcription. However, aberrant overexpression of HDACs in certain tumors is associated with decreased levels of transcription leading to tumor progression and survival. Hence, small-molecule histone deacetylase inhibitors …

Effect Of Cftr Modulators On Respiratory Function In Adults With Cystic Fibrosis, Melissa Severson

Physician Assistant Scholarly Project Papers

Cystic Fibrosis (CF) is an autosomal recessive disorder that shortens one’s life due to its effect on the cystic fibrosis transmembrane regulator (CFTR) gene. CFTR modulator medications can correct the CFTR gene and consist of a potentiator (ivacaftor), and corrector (lumacaftor, tezacaftor and elexacaftor). This research and literature review sought to evaluate if lung function improved in an individual with genetically confirmed CF after being started on CFTR modulator medications. To complete the review, six databases were searched which included: CINAHL, PubMed, Clinical Key, Cochrane Library, Embase and Dynamed Plus. Both keyword and mesh terms were used to define a …

Efficacy Of Pharmacologic Treatment For Orthostatic Hypotension In The Elderly Population, Abigail Moeller

Physician Assistant Scholarly Project Papers

The purpose of this literature review is to determine the efficacy and safety of pharmacologic treatments for orthostatic hypotension (OH), with an emphasis on researching the elderly population. In this review, three electronic search databases were utilized including PubMed, Google Scholar, and Dynamed from the years 1997 to 2019. Several keywords were used during the search. Criteria for chosen articles included that the article must be peer-reviewed, the studied population must have a median age of at least 50 years-old, at least 20 subjects must be involved, and the study must be published after the year 1995. The specific pharmacologic …

Understanding The Role Of Ano1 In Oral Cancer, Mallary Forrest

UNLV Theses, Dissertations, Professional Papers, and Capstones

In 2008, the gene ANO1 was discovered to encode a calcium activated chloride channel. This gene is located on the 11q13 locus, a locus that is commonly amplified in many cancers including cancer of the head and neck. ANO1 is situated in close proximity to genes associated with growth and apoptosis. As rapid proliferation and lack of apoptosis are hallmark characteristics of cancer, growth factors and apoptosis mediators are expected to be altered in cancer. But what does a calcium activated chloride channel have to contribute to cancer’s pathogenesis? Is it an active gene in cancer progression or is it …

Comparative Research Of Effective Treatment Measures For Postpartum Depression, Aunica Novacek

Physician Assistant Scholarly Project Papers

Postpartum depression is a mood disorder that includes depressive symptoms during the time period following childbirth. There are various possibilities for what may cause this disorder, but the drastic change in hormones after delivery can play a role. With the chance this disorder may be fatal to both the mother and child, an appropriate, effective, and safe treatment is necessary to control depressive symptoms. The standard, first-line pharmacotherapeutic option is a selective serotonin reuptake inhibitor (SSRI) antidepressant. SSRI antidepressants are well understood, but these medications may take time to become effective. Knowing this, medical professionals can find a more rapid …

Health Literacy Screening To Increase Antihypertensive Medication Adherence, Boyann Bonjean

Evidence-Based Practice Project Reports

Hypertension contributes to the risk of developing cardiovascular disease (CVD), stroke, heart attack, and chronic kidney disease (CKD) (Abegaz et al., 2016; Weir, 2014; Whelton et al., 2017). Evidence indicates that 30 to 50% of people who are prescribed antihypertensive medication therapy are nonadherent (Hedna et al., 2015). Non-adherence to antihypertensive medications is a major contributor to hypertension treatment failure (Al Ghurair et al., 2012; Hu, 2016; Whelton et al., 2017). Evidence has shown that low health literacy may impact antihypertensive therapy (Slade, 2017). The purpose of this EBP project was to provide an organizational change by implementing a health …

Anxiety Is Something To Worry About: The Effects Of A Cognitive Behavioral Therapy And Selective Serotonin Reuptake Inhibitor Intervention Protocol On Generalized Anxiety Disorder, Alesha E. Mcclanahan

Evidence-Based Practice Project Reports

Generalized anxiety disorder (GAD) is highly prevalent in the United States with at least 12% of the population affected (Edmund & Sheppard, 2018). GAD can pose significant distress and debilitation throughout the lifespan (Bystritsky, Khalsa, Cameron, & Schiffman, 2013; Edmund & Sheppard, 2018). Barriers to treatment include adverse effects, inaccessibility, and expense. The purpose of this project was to implement an evidence-based protocol involving combination therapy with self-administered cognitive behavioral therapy (CBT) and selective serotonin reuptake inhibitor (SSRI) medication in order to improve patient outcomes through more accessible, affordable, and standardized treatment of GAD. The Neuman Systems Model and Stetler …

The Effect Of An Educational Intervention On Oral Anticoagulation Therapy Knowledge In Primary Care, Elizabeth D. Deck

Evidence-Based Practice Project Reports

It is estimated that three million people in the United States are on oral anticoagulation therapy (warfarin). Populations studied have been found in therapeutic range 64% of the time (Pernod, Labarere, & Bosson, 2008). The low percentage of therapeutic range is attributable to (a) adherence, (b) monitoring infrequency, (c) Vitamin K antagonists, and (d) the effects of aging and comorbidities. The purpose of this evidence-based practice (EBP) project was to examine whether an educational intervention would improve the knowledge of patients receiving warfarin therapy. Roy’s model for patient adaptation and the Stetler Model for EBP were used as frameworks for …

Characterization Of Polymeric Phthalocyanine Nanoparticles Using Dynamic Light Scattering Laser, Satish Kumar Murarishetty

All Capstone Projects

The objective of this study is to use DLS (Dynamic Light Scattering) to analyze polymeric copper phthalocyanine nanoparticles (CuPcNPs). CuPcNPs are synthesized in order to facilitate drug penetration of bacterial biofilms for the treatment of chronic wounds. Microorganisms that reside inside the biofilms of chronic wounds are very resistant to any kind of treatment, even to the host’s own immune system. Therefore we have proposed an alternative method to destroy the microorganisms existing within the biofilms. Photodynamic anti-bacterial chemotherapy (PACT) has received much attention for the past decade due to the multi-drug resistant strands. PACT uses photons, a photosensitizer, and …

Nano Encapsulated Drug Delivery For Biofilms, Arunakanth Chavala

All Capstone Projects

Biofilms are now considered ubiquitous in the natural world. Bacterial biofilms have been observed to be extremely heterogeneous, both structurally and with regard to the physiology of the bacterial cells within them. The prevailing conceptual model depicts bacterial biofilms as being made up of microcolonies, which serve as the basic unit of the greater biofilm structure. A major concern with this approach is the frequently observed development of resistance to antimicrobial compounds. A number of elements in the process of biofilm formation have been studied as targets for novel drug delivery technologies. The present study aimed to penetrate biofilm by …

Using Photoactive Nanoparticles As Photodynamic Antimicrobial Chemotherapeutic (Pact) Agent To Treat Chronic Wounds, Chaitanya Poola

All Capstone Projects

The purpose of this study is to use photoactive vitamin nanoparticles as photodynamic antimicrobial chemotherapeutic agent to treat patients with chronic wounds. Chronic wounds are considered as a pandemic health problem which affects millions of people and increases ~10 % annually. According to the American Academy of Dermatology, the expense of treating chronic wounds constitutes over half of the total cost for all skin diseases. The main cause of chronic wounds is due to the existence of biofilms. Biofilms are complex microbial communities containing and are reported to be major factor contributing to multiple chronic inflammatory diseases. Owing to bacterial …

Detection Of Folate Binding Protein, Anwer Unnisa

All Capstone Projects

Cancer is the second leading cause of death despite the anti cancer developments including hormone therapy, radiotherapy, chemotherapy. Chemotherapy includes use of potent drugs such as camptothecin, paclitaxel and mitomycin. These drugs have an effect which is dose responsive, where the drug exposure and cell kill are proportional. This chemotherapy is high dose and has less selectivity for cancer cells and has more toxic effect to normal cells. Such kind of non specific treatment to tumor is causing hurdles in the treatment of cancer by chemotherapy. To overcome this current limitation to chemotherapy, the anti cancer drug with high specificity …

Ruthenium Complexes As Dna Photonucleases In Treatment Of Malignant Skin Carcinoma, Devi Kalyan Karumanchi

All Capstone Projects

A variety of Ruthenium complexes possessing terpyridine complexes as ligands in their coordination sphere have been investigated extensively as DNA photo nucleases in vitro. This work has led to the realization that compounds of Ruthenium bind to DNA purines and that the interactions are of an unprecedented bridging variety. Owing to the molar absorptivity of these complexes in the visible region, direct cleavage of duplex DNA by these complexes requires irradiation in the range of 400-500 nm.

Although the observation of DNA photo cleavage in vitro makes these systems good candidates for further investigation, it does not provide any information …

Using Photoactive Vitamin Nanoparticles As Photodynamic Antimicrobial Chemotherapeutic (Pact) Agents To Treat Chronic Wounds, Rahul A. Khanke

All Capstone Projects

The objective of the proposed study is to develop new materials and methods to manage microbial growth in chronic wounds using phototherapy. Chronic wounds are considered as a worldwide health problem. The most common chronic wounds can be classified into three categories: venous ulcers, diabetic ulcers, and pressure ulcers. Venous ulcers, which usually occur in the legs, account for about 70% to 90% of chronic wounds and can become infected easily. Venous ulcers are sores that develop after veins in the legs have been damaged. These ulcers can penetrate deeply into the skin. Occasionally, if a venous ulcer persists for …

Effects Of The New Histone Deacetylase Inhibitor Pxd101 In Bladder Cancer, Hristos Zacharias Kaimakliotis

Yale Medicine Thesis Digital Library

Histone deacetylase inhibitors (HDACIs) mediate gene expression and chromatin assembly, and induce growth arrest and apoptosis of tumor cells, thus representing a new strategy for human cancer therapy. Changes in apoptosis signaling pathways and the effect on cell growth and cell-cycle arrest of a new HDACI, PXD101, on T-24 bladder cancer cells form the basis of this study. T-24 cells were incubated with PXD101 at varying concentrations and times, and viable cell count and proliferation curves were constructed. Cell cycle analysis was conducted with Fluorescent Activated Cell Sorting and changes in apoptosis signaling proteins that were previously found to be …

Gene Expression Patterns In Patients With High-Altitude Pulmonary Edema: A Gene Microarray Analysis, Lauren Kendall Krause

Yale Medicine Thesis Digital Library

Multiple modulating genes and environmental factors have been implicated in the pathogenesis of high-altitude pulmonary edema (HAPE). However, at the present time, there exists an incomplete understanding of the molecular mechanisms and pathways which underlie constitutional susceptibility. Genome-wide measurements of gene expression in peripheral blood mononuclear cells (PBMCs) were performed using microarray technology. Comparison of gene expression profiles of HAPE-susceptible and resistant individuals resulted in the identification of several previously undescribed candidate genes. RhoA and Rho-kinase (ROCK), regulators of vascular smooth muscle contraction, were differentially regulated in the HAPE-susceptible cohort, as compared to both HAPE-resistant patients with acute mountain sickness …