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Articles 31 - 60 of 68
Full-Text Articles in Medicine and Health Sciences
A Systematic Review Of Language Therapy In Pediatric Brain Tumor Survivors, Ari Watt
A Systematic Review Of Language Therapy In Pediatric Brain Tumor Survivors, Ari Watt
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
Purpose: Brain tumors and associated treatments in children have been shown to cause long term neurological damage. While there is a large body of research focusing on treating associated cognitive deficits, relatively little research has focused on improving linguistic ability in this population. This systematic review identified and summarized the available evidence related to language treatment for pediatric brain tumor survivors.
Methods: A systematic electronic database search resulted in the identification of four relevant treatment studies, two position papers and one online forum. A data extraction manual and form was used to methodically extract study information related to participant demographics, …
Pkm2 Influences The Metabolic Fate Of Butyrate In Colorectal Cancer Cells, Megan Louise Pence
Pkm2 Influences The Metabolic Fate Of Butyrate In Colorectal Cancer Cells, Megan Louise Pence
Chancellor’s Honors Program Projects
No abstract provided.
Parp Pet Imaging Agents, Brandon Carney
Parp Pet Imaging Agents, Brandon Carney
Dissertations, Theses, and Capstone Projects
The poly (adenosine-diphosphate (ADP) ribose) polymerase (PARP) family of enzymes has been of interest to researchers and clinicians for over fifty years, especially the first member of the family, PARP1. This enzyme has become a target for cancer therapeutics due the reliance of highly proliferating cells on PARP1 for genomic maintenance. In the coming age of individualized medicine, however, highly specific therapeutic agents like PARP inhibitors are in need of similarly highly specific companion diagnostic agents. These kind of agents have been made possible with the quickly progressing field of molecular imaging. Specifically, positron emission tomography (PET) has enabled the …
Novel Insights Into The Contribution Of Cellular Senescence To Cancer Therapy: Reversibility, Dormancy And Senolysis., Tareq Saleh
Novel Insights Into The Contribution Of Cellular Senescence To Cancer Therapy: Reversibility, Dormancy And Senolysis., Tareq Saleh
Theses and Dissertations
Cellular senescence a specialized form of growth arrest that contributes to the pathogenesis of several aging-related disorders including cancer. While by definition tumor cells are considered immortalized, they can undergo senescence when exposed to conventional and targeted cancer therapy. Therapy-Induced Senescence (TIS) represents a fundamental response to therapy and impacts its outcomes. However, TIS has been considered a positive therapeutic goal since senescent tumor cells are expected to enter a state of permanent growth abrogation. In this work we examined the hypothesis that a subpopulation of senescent cells can re-acquire proliferative potential after a state of senescent dormancy, indicating that …
Improving Hpv Vaccination Series Initiation Rates And Compliance Among Indigent Women In South Texas, Ages 19-26, Through Provider Recommendation And Additional Clinic Funding: A Quality Improvement Project, Lacey Cudd
Doctor of Nursing Practice
The purpose of this quality improvement project was to increase human papillomavirus vaccination series initiation rates among indigent women, ages 19-26, at a clinic in South Texas. The human papillomavirus is a sexually transmitted infection that has been associated with multiple types of cancers. Each year, approximately 6.2 million cases of the human papillomavirus infection are diagnosed; as many as 75% of all new infections occur among females 18-26 years of age. The human papillomavirus vaccination has a high efficacy in regards to cancer prevention, preventing as many as 76% of cancers with only one dose. The project included educating …
Developing A Peer Cancer Support Group Evaluation, Glenda Kith
Developing A Peer Cancer Support Group Evaluation, Glenda Kith
Master's Projects and Capstones
Introduction: For many years, health care organizations have offered peer cancer support groups to cancer survivors, but peer cancer support group evaluation is not standardized. Without a clear and consistent evaluation, it may be difficult to understand the efficacy of and gain support for peer cancer support groups. In this paper, I discuss how an evaluation was created for a peer cancer support group called Cancer Awareness Resource and Education (CARE).
Methods: In-depth interviews with CARE participants were conducted and pre-survey and a post-survey were developed. The in-depth interviews included a convenience sample of eight individuals, two individuals from the …
Metabolic Regulation Of Cellular Signaling, Rashid John Darbandi
Metabolic Regulation Of Cellular Signaling, Rashid John Darbandi
Theses and Dissertations (ETD)
Using the biochemically tractable Xenopus oocyte model system, we have previously characterized a novel metabolic regulation of cell death. We found that glucose-6-phosphate (G6P) via the pentose phosphate pathway leads to increased nicotinamide adenine dinucleotide phosphate (NADPH) levels, a subsequent increase in cytosolic acetyl-coenzyme A and activation of Ca2+/calmodulin-dependent protein kinase II (CaMKII). We recently identified coenzyme A (CoA), derived from the breakdown of acetyl-CoA, as the key metabolic signal that mediates a novel mechanism of calmodulindependent activation of CaMKII. CoA binds directly to the calmodulin (CaM) binding domain (CaMBD) of CaMKII resulting in its activation and downstream inhibitory phosphorylation …
Dox Inducible Idh2 R140q Expression In Stem Cells Results In Cell Death, Opposite Of Cancerous Overgrowth, Reuben Hogan
Dox Inducible Idh2 R140q Expression In Stem Cells Results In Cell Death, Opposite Of Cancerous Overgrowth, Reuben Hogan
Undergraduate Research Symposium Posters
Mutations in isocitrate dehydrogenase (IDH) 1 or 2 are found in about 23% of acute myeloid leukemia (AML) samples and about 90% of gliomas. Mutations result in neomorphic function of the IDH enzyme that yields the novel molecule 2-hydroxyglutarate (2HG) instead of alpha-ketoglutarate (aKG). 2HG is known to be associated with hypermethylation of DNA and histones, a phenotype seen in AML. Our lab intends to study the mechanism by which hypermethylation is achieved and how this mechanism relates to the onset of cancer. In this experiment, we utilized a line of H9 stem cells which we had developed. These cells …
Investigating E2f Independent Cell Cycle Control And Tumor Suppression By Prb, Michael J. Thwaites
Investigating E2f Independent Cell Cycle Control And Tumor Suppression By Prb, Michael J. Thwaites
Electronic Thesis and Dissertation Repository
Cellular division is primarily controlled at the G1 to S-phase transition of the cell cycle by the retinoblastoma tumor-suppressor protein (pRB). The ability of pRB to restrict S-phase entry is primarily attributed to the repression of E2F transcription factors required to upregulate cell cycle target genes necessary for cellular division. Interestingly, while pRB is disrupted in the vast majority of human cancers, mutations typically target upstream regulators of pRB leading to inactivation through hyperphosphorylation. The rarity of direct pRB mutations suggests that the regulation of the cell cycle by pRB may involve additional mechanisms outside of E2F repression, as this …
Cancer As A Metabolic Disease, Javaria Haseeb
Cancer As A Metabolic Disease, Javaria Haseeb
Honors Senior Capstone Projects
Despite decades of intensive scientific and medical efforts to develop efficient and effective treatments for cancer, it remains one of the prime causes of death today. For example, in 2016, there will be an estimated 1,685,210 new cases of cancer and 595,690 deaths due to cancer in the United States alone (National Cancer Institute). Worldwide in 2012, there were an estimated 14 million new cases of cancer and 8.2 million deaths due to cancer. In order to come up with better methods of detection and more successful modes of treatment, it is crucial that scientists understand the depth of not …
Characterization Of Staphylococcal Nuclease And Tudor Domain Containing Protein 1 (Snd1) As A Molecular Target In Hepatocellular Carcinoma And Non-Alcoholic Steatohepatitis, Nidhi H. Jariwala
Theses and Dissertations
CHARACTERIZATION OF STAPHYLOCOCCAL NUCLEASE AND TUDOR DOMAIN CONTAINING PROTEIN 1 (SND1) AS A MOLECULAR TARGET IN HEPATOCELLULAR CARCINOMA AND NON-ALCOHOLIC STEATOHEPATITIS
Nidhi Jariwala, PhD
A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Integrative Life Sciences
Virginia Commonwealth University, 2017
Devanand Sarkar, M.B.B.S., PhD.
Associate Professor, Department of Human and Molecular Genetics
Virginia Commonwealth University
Richmond, Virginia
SND1, a subunit of the miRNA regulatory complex RISC, has been implicated as an oncogene in hepatocellular carcinoma (HCC). Oncoprotein SND1 regulates gene expression at a post-transcriptional level in multiple cancers including hepatocellular carcinoma (HCC). …
The Role Of Progesterone Receptor Membrane Component 1 In Receptor Trafficking And Disease, Kaia K. Hampton
The Role Of Progesterone Receptor Membrane Component 1 In Receptor Trafficking And Disease, Kaia K. Hampton
Theses and Dissertations--Pharmacology and Nutritional Sciences
The progesterone receptor membrane component 1 (PGRMC1) is a multifunctional protein with a heme-binding domain that promotes cellular signaling via receptor trafficking, and is essential for some elements of tumor growth and metastasis. PGRMC1 is upregulated in breast, colon, lung and thyroid tumors. We expanded the analysis of PGRMC1 in the clinical setting, and report the first analysis of PGRMC1 in human oral cavity and ovarian tumors and found PGRMC1 to correlate with lung and ovarian cancer patient survival. Furthermore, we discovered a specific role for PGRMC1 in cancer stem cell viability. PGRMC1 directly associates with the epidermal growth factor …
Establishing A Clinically Relevant Mouse Model Of Human Aml To Test Novel Transmethylation Inhibitors., Aditya Barve
Establishing A Clinically Relevant Mouse Model Of Human Aml To Test Novel Transmethylation Inhibitors., Aditya Barve
Electronic Theses and Dissertations
Acute myeloid leukemia (AML) is a highly heterogeneous clonal disorder characterized by an accumulation of malignant immature myeloid progenitors in the bone marrow (BM) that hinder normal hematopoiesis. Patient AML exhibits a dramatic heterogeneity in terms of cytogenetics, disease morphology, and associated prognoses and/or chemotherapeutic sensitivity. Thus it becomes clearly evident that the investigation of novel therapeutics for AML will require model systems that are capable of recapitulating this stark heterogeneity in a patient specific manner. Furthermore, it is now understood that the surrounding bone marrow (BM) microenvironment and supporting cells play a critical role in leukemic progression as well …
The Roles Of Nuclear Receptor Nr4a1 In Cancer Cell Proliferation And Skeletal Muscle Differentiation, Alexa Farmer
The Roles Of Nuclear Receptor Nr4a1 In Cancer Cell Proliferation And Skeletal Muscle Differentiation, Alexa Farmer
Theses and Dissertations (ETD)
Nuclear receptors (NRs) constitute a major class of drug targets in the treatment of various cancer types. NRs respond to cellular signals and become activated upon ligand binding to transcriptionally modulate expression of target genes. NR4A1 (Nur77) is a member of the NR4A family of nuclear receptors and displays an oncogenic profile in many cancer models. It is often upregulated in adult solid malignancies and is known to promote cell proliferation and survival. Knockdown studies of NR4A1 in cancer cell lines results in decreased cell growth and angiogenesis and increased apoptosis, suggesting NR4A1 is an oncogenic protein. Due to the …
Novel Oncogenic Drivers In Pediatric Gliomagenesis, Alexander K. Diaz
Novel Oncogenic Drivers In Pediatric Gliomagenesis, Alexander K. Diaz
Theses and Dissertations (ETD)
Pediatric high-grade gliomas (pHGGs), with a two-year survival rate of less than 20%, are some of the most aggressive human cancers. This dissertation begins with our analysis of 127 pHGGs, including brainstem (BS) and non-brainstem (NBS) tumors, from 118 patients using next-generation sequencing technologies. Nearly one-third of BS-HGGs, also known as diffuse intrinsic pontine gliomas (DIPGs), harbored somatic heterozygous missense mutations in ACVR1, coding for a receptor serine-threonine kinase involved in bone morphogenetic protein (BMP) signaling. These alterations led to gain-of-function as evidenced by increased phosphorylation of downstream targets in primary astrocytes and zebrafish embryo ventralization. Whole-genome sequencing and …
The Effect Of An Educational Intervention On Knowledge And Intent To Participate In Cervical Cancer Screening, Ann Marie Trapp
The Effect Of An Educational Intervention On Knowledge And Intent To Participate In Cervical Cancer Screening, Ann Marie Trapp
Evidence-Based Practice Project Reports
Globally, cervical cancer ranks third among cancers affecting women (Arbyn et al., 2013). In the United States, approximately 12,000 women are diagnosed with cervical cancer and approximately 4,000 women die yearly (Centers for Disease Control and Prevention, 2014). Papanicolaou (Pap) screening is an effective means of detecting precancerous cell changes of the cervix with early cervical cancer diagnosis carrying a 91% five-year survival rate (Gonzalez et al., 2012). The purpose of this evidence-based practice project was to identify interventions that increase adherence to cervical cancer screening and to implement best practices to reduce unnecessary deaths related to late diagnoses of …
Cancer Stem Cells In The Screening Of Anticancer Drugs For Central Nervous System Tumors, Sarah Elizabeth Daron-Mathis
Cancer Stem Cells In The Screening Of Anticancer Drugs For Central Nervous System Tumors, Sarah Elizabeth Daron-Mathis
Theses, Dissertations and Capstones
There is a growing need (in the medical field) to design personalized therapy for cancer patients. Decades of cancer research have found no silver bullet that can cure all or even most patients. This study evaluated four patients affected by central nervous system (CNS) tumors (Ependymoma and Glioblastoma), and found that tumors with the same histology had unique responses to treatment. Each sample presented different levels of heterogeneity in expressed biomarkers and responded to drugs at varying levels.
Oncologists conventionally treat cancer patients with drugs tested in large clinical trials. However, often patients do not experience positive outcomes following treatments …
Dual Pi3k/Mtor Inhibition With Bez235 Augments The Therapeutic Efficacy Of Doxorubicin In Cancer Without Influencing Cardiac Function, David E. Durrant
Dual Pi3k/Mtor Inhibition With Bez235 Augments The Therapeutic Efficacy Of Doxorubicin In Cancer Without Influencing Cardiac Function, David E. Durrant
Theses and Dissertations
Cancer continues to be a leading cause death in the United States despite improved treatments. Cancerous lesions form after acquiring oncogenic driver mutations or losing tumor suppressor function in normal cells. Traditional therapies have included use of genotoxic substances that take advantage of the increased growth rate and loss of tumor suppressor function to cause cell death. One such drug is the anthracycline antibiotic doxorubicin (DOX). DOX interchelates into DNA and disrupts transcriptional machinery while also poisoning topoisomerase II. This results in single and double stranded DNA breaks, which if severe enough leads to either necrotic or apoptotic cell death. …
Acute Promyelocytic Leukemia As A Possible Source For Ajulemic Acid Binding, Brian Christopher Monk
Acute Promyelocytic Leukemia As A Possible Source For Ajulemic Acid Binding, Brian Christopher Monk
Honors Theses
Acute promyelocytic leukemia (APL) is a cancer that affects bone marrow, the blood-forming tissue (of the body). This type of leukemia accounts for approximately 10% of acute myeloid leukemia (AML) cases. Normally this cancer is treated with a drug called all-trans retinoic acid (ATRA), but other variations of treatment do exist. The importance of this research is that APL cells express contains a receptor, retinoic acid receptor-a (RARa), which ajulemic acid (AJA) may bind to in order to induce apoptosis in Ewing sarcoma (ES), a pediatric bone cancer. Therefore, this research will focus on the ability of AJA to induce …
The Effect Of Cannabinoids On Triple Negative Breast Cancer Cells, Haley Dahl
The Effect Of Cannabinoids On Triple Negative Breast Cancer Cells, Haley Dahl
Honors Theses
Triple Negative Breast Cancer (TNBC) is a difficult type of cancer to treat because it is negative for progesterone, estrogen, and HER-2 receptors. Because TNBC is negative for these three receptors, it does not respond to normal hormonal therapies. The purpose of my experiment is to see if different cannabinoids, compounds from the cannabis plants, could be used as alternative treatment options. These experiments employed three different cannabinoids: ajulemic acid, cannabidiol, and hemp oil. Cell viability was measured after 72 hours of treatment using a MTT assay. The results showed that the three cannabinoids could be used to effectively destroy …
Clinical And Pathologic Significance Of Integrin Α6Β4 Expression In Human Malignancies, Rachel L. Stewart
Clinical And Pathologic Significance Of Integrin Α6Β4 Expression In Human Malignancies, Rachel L. Stewart
Theses and Dissertations--Clinical and Translational Science
Integrins are cellular adhesion molecules that bind cells to the extracellular matrix. The integrin α6β4, a receptor for laminins, is predominantly expressed on epithelial cells where it is present at the basal surface adjacent to the basement membrane. This integrin plays a critical role in maintaining normal cellular functions, yet has also been implicated in promoting invasion and metastasis in human malignancies. While overexpression of the integrin α6β4 has been detected in select human cancers, the clinical significance of integrin α6β4 expression in a number of malignancies has not been determined. The purpose of this study was to examine integrin …
Interaction Of Disease, Drugs, And Disposition In Ewing's Sarcoma Patients, Madeline Martin
Interaction Of Disease, Drugs, And Disposition In Ewing's Sarcoma Patients, Madeline Martin
Honors Theses
Ewing's Sarcoma is a pediatric bone cancer that is highly aggressive, leading to a five year survival rate of not only 30% even with multi-modal treatment protocols. Improved therapeutic options are desperately needed. Our research has focused on the ability of the psychoactive cannabinoid, ajulemic acid, to induce apoptosis and decrease metastatic potential in cells from members of the Ewing Sarcoma family of tumors. Recently, we explored the effects of the naturally-occuring cannabinoid, cannabidiol, on three-dimensional spheroids that mimic the cellular components and microenvironment of Ewing's tumors. We looked at how this treatment affects VEGF, a mediator of angiogenesis, to …
Lung Cancer Survival Disparities In Nevada, Chima Osuoha
Lung Cancer Survival Disparities In Nevada, Chima Osuoha
UNLV Theses, Dissertations, Professional Papers, and Capstones
Lung cancer is the leading cause of cancer death in both men and women in the United States. Nevada shows moderate incidence rates of lung cancer for men but high rates for women. Little is known about the lung cancer experience and survival characteristics of the nearly 2000 new cases occurring every year in the State. The purpose of this study was to measure the extent to which geographic area of residency, gender, race, health insurance, social economic status (SES) and stage at diagnosis were associated with survival in patients diagnosed with lung cancer in Nevada. This was a retrospective …
Effect Of Chemotherapeutic Treatment Schedule On A Tissue Transport Model, Dan E. Ganz
Effect Of Chemotherapeutic Treatment Schedule On A Tissue Transport Model, Dan E. Ganz
Masters Theses
Current chemotherapeutic treatment schedule prediction methods rely heavily on PK/PD-based models and overlook the important contribution of tissue-level transport and binding. Tissue-level transport and binding phenomena are essential to understanding drug delivery and efficacy in tumors. Drugs with desirable PK/PD properties often fail in vivo due to poor tissue-level transport. We developed an in silico method to predict the effect of treatment schedule on efficacy that couples PK/PD with tissue-level transport. Treatment schedules were implemented on theoretical drugs with different PK/PD and transport properties. For each drug with a given clearance rate, diffusivity, and binding, treatment schedules consisting of one …
Indoleamine 2,3-Dioxygenase Confers Resistance To Chemotherapy And Γ Radiation To Cancer Cells, Independent Of Direct Immune Involvement, Saman Maleki Vareki
Indoleamine 2,3-Dioxygenase Confers Resistance To Chemotherapy And Γ Radiation To Cancer Cells, Independent Of Direct Immune Involvement, Saman Maleki Vareki
Electronic Thesis and Dissertation Repository
Indoleamine 2,3-dioxygenase-1 (IDO) is an immunosuppressive molecule expressed by most human tumours. IDO levels correlate with poor prognosis in cancer patients and IDO inhibitors are under investigation to enhance endogenous anticancer immunosurveillance. Little is known regarding the immune-independent functions of IDO relevant to cancer therapy. In this thesis I show, for the first time, that IDO mediates human tumour cell resistance, in a cell-autonomous fashion, to single and combination treatment with a diverse group of chemotherapy drugs and g radiation. These drugs include a PARP inhibitor (olaparib), a DNA cross-linking agent (cisplatin), a folate antimetabolite (pemetrexed), a nucleoside analogue (gemcitabine), …
Is Massage Therapy An Effective Treatment For Improving Sleep Quality In Women Age 50-80 Diagnosed With Cancer?, Alexander M. Chase
Is Massage Therapy An Effective Treatment For Improving Sleep Quality In Women Age 50-80 Diagnosed With Cancer?, Alexander M. Chase
PCOM Physician Assistant Studies Student Scholarship
OBJECTIVE: The objective of this selective EBM review is to determine whether or not massage therapy is an effective treatment in improving sleep quality among women age 50-80 diagnosed with cancer.
STUDY DESIGN: Review of two English language randomized control trials published in 2004 and 2011 and one English language quasiexperimental pretest-posttest comparison study publishEd in 2002.
DATA SOURCES: Data sources were articles published in peer reviewed journals found using PubMed and EBSCOhost.
OUTCOMES MEASURED: Sleep quality was measured using the Verran and Snyder-Halpem Sleep Scale and the Richards-Campbell Sleep Questionnaire.
RESULTS: Soden et al …
Nkg2d Ligands In Cancer, Neha Das Gupta
Nkg2d Ligands In Cancer, Neha Das Gupta
Theses and Dissertations (ETD)
NK cell transplantation has been increasingly used to treat cancers that are resistant to chemotherapy. However, not all cancers are susceptible to NK cell killing. The prevalence and mechanisms of NK cell resistance have not been well elucidated. Because NKG2D is a major activating receptor on NK cells, we sought to test the hypothesis that NKG2D is the primary pathway in tumor cell recognition. Herein, we comprehensively assessed 20 cancer cell lines representing a broad array of cancer types. In line with our primary hypothesis, no cancer cell lines that expressed low levels of NKG2D ligands were susceptible to NK …
Skin Cancer - Education And Prevention: The Role Of Social Marketing, Tim Crowley
Skin Cancer - Education And Prevention: The Role Of Social Marketing, Tim Crowley
Theses
Skin cancer is the most common cancer in Ireland and worldwide. Skin cancer rates have been steadily rising in recent times. The high use of sunbeds in both Ireland and the UK is quite worrisome. Skin cancer is caused by over exposure to UV rays or through the use of sunbeds and as a result it is actually a highly preventable disease. It is estimated that 90-95% of all skin cancers are preventable. This thesis focuses on the use of social marketing in order to educate people on the dangers of skin cancer with the eventual aim of making recommendations …
Exploring The Unique Characteristics Of Cancer In Adolescents And Young Adults In Tennessee, Megan Quinn
Exploring The Unique Characteristics Of Cancer In Adolescents And Young Adults In Tennessee, Megan Quinn
Electronic Theses and Dissertations
Adolescents and Young Adults (AYAs) ages 15-39 years with cancer have received little attention in the medical and health fields, resulting in a lack of progress for this age group. Little is known about the unique biologic, epidemiologic, and psychosocial issues that play an integral role in the AYA cancer journey. The purposes of this study were to use the Tennessee Cancer Registry for all new cancer cases from 2004-2008 to determine 1) the main types of cancer that affect AYAs in TN, 2) the predictors of late-stage diagnosis of melanoma, and 3) the factors that predict a total thyroidectomy …
Increased Geranylgeranylated K-Ras Contributes To Antineoplastic Effects Of Farnesyltransferase Inhibitors., Mandy A. Hall
Increased Geranylgeranylated K-Ras Contributes To Antineoplastic Effects Of Farnesyltransferase Inhibitors., Mandy A. Hall
Dissertations & Theses (Open Access)
The Ras family of small GTPases (N-, H-, and K-Ras) is a group of important signaling mediators. Ras is frequently activated in some cancers, while others maintain low level activity to achieve optimal cell growth. In cells with endogenously low levels of active Ras, increasing Ras signaling through the ERK and p38 MAPK pathways can cause growth arrest or cell death. Ras requires prenylation – the addition of a 15-carbon (farnesyl) or 20-carbon (geranylgeranyl) group – to keep the protein anchored into membranes for effective signaling. N- and K-Ras can be alternatively geranylgeranylated (GG’d) if farnesylation is inhibited but are …