Medicine and Health Sciences Commons^™

Steps To Evaluate The Emory Breast Center Cancer Education Class, Jillian B. Ogden

Public Health Theses

Surveillance Epidemiology and End Results (SEER) data estimates that 207,090 women will be diagnosed with and 39,840 women will die of cancer of the breast in 2011. Cancer can be a very intimidating illness and cause a great deal of anxiety. This anxiety can sometimes progress into a very serious medical problem. Interpersonal relationships, such as that between a patient and provider can influence health behavior. Communication functions of patient-provider communication such as, information exchange, uncertainty management, can improve health outcomes both directly and indirectly. For example, cancer education can help ease anxiety by familiarizing the patient with their particular …

Identification Of Novel Molecular Targets Of Resveratrol In Colorectal Carcinogenesis, Nichelle Chantil Whitlock

Doctoral Dissertations

Current research suggests resveratrol, a phytoalexin found predominately in grapes, may function as a chemopreventive and/or chemotherapeutic agent for various cancers, including colorectal cancer. However, the underlying mechanism(s) involved in these activities remain elusive. Thus, the objective of the studies discussed here sought to investigate the effect of resveratrol treatment on gene modulation in human colorectal cancer cells in order to identify and characterize novel molecular targets that contribute to the observed anticancer activities of resveratrol. Here, we identify activating transcription factor 3 (ATF3) and early growth response-1 (Egr-1) as novel targets of resveratrol and provide data to elucidate the …

Applications Of Ephb4 Receptor Specific Peptides In Targeted Cancer Imaging And Therapy, Miao Huang

Dissertations & Theses (Open Access)

EphB4 receptors, a member of the largest family of receptor tyrosine kinases, are found over-expressed in a variety of tumors cells including glioma cells as well as angiogenic blood vessels. Noninvasive imaging of EphB4 could potentially increase early detection rates, monitor response to therapy directed against EphB4, and improve patient outcomes. Targeted delivery of EphB4 receptor specific peptide conjugated hollow gold nanoshells (HAuNS) into tumors has great potential in cancer imaging and photothermal therapy. In this study, we developed an EphB4 specific peptide named TNYL-RAW and labeled with radioisotope ⁶⁴Cu and Cy5.5 dye. We also conjugate this specific peptide …

Evaluation Of Cancer From Exposure To Cyanotoxins In Drinking Water At Grand Lake Saint Marys, Timothy Edward Soward

Master of Public Health Program Student Publications

Background: The Celina Water Department treats and supplies surface water contaminated by cyanotoxins from Grand Lake Saint Marys (GLSM) to approximately 12,000 customers in Celina, Ohio. Cyanotoxins are a biochemically and bioactively diverse group of extremely potent natural toxins in water. A common cyanotoxin called microcystin-LR found in GLSM has been associated with acute liver damage and potentially liver and colorectal cancer.

Methods: In this observational study, the city of Celina (Mercer County) Ohio that had a contaminated surface water supply, the cancer incidence was compared with two control cities, St. Marys, and Wapakoneta (Auglaize County) in Ohio, both served …

Patient-Provider Communication Data: Linking Process And Outcomes In Oncology Care, Lisa Kennedy Sheldon, Fangxin Hong, Donna L. Berry

Nursing Faculty Publication Series

Overview: Patient–provider communication is vital to quality patient care in oncology settings and impacts health outcomes. Newer communication datasets contain patient symptom reports, real-time audiofiles of visits, coded communication data, and visit outcomes. The purpose of this paper is to: (1) review the complex communication processes during patient–provider interaction during oncology care; (2) describe methods of gathering and coding communication data; (3) suggest logical approaches to analyses; and (4) describe one new dataset that allows linking of patient symptoms and communication processes with visit outcomes. Challenges: Patient–provider communication research is complex due to numerous issues, including human subjects’ concerns, methods …

Therapeutic Efficacy And Safety Of Paclitaxel/Lonidamine Loaded Egfr-Targeted Nanoparticles For The Treatment Of Multi-Drug Resistant Cancer, Lara S. Jabr-Milane, Zhenfeng Duan, Mansoor M. Amiji

Mansoor M. Amiji

The treatment of multi-drug resistant (MDR) cancer is a clinical challenge. Many MDR cells over-express epidermal growth factor receptor (EGFR). We exploit this expression through the development of EGFR-targeted, polymer blend nanocarriers for the treatment of MDR cancer using paclitaxel (a common chemotherapeutic agent) and lonidamine (an experimental drug; mitochondrial hexokinase 2 inhibitor). An orthotopic model of MDR human breast cancer was developed in nude mice and used to evaluate the safety and efficacy of nanoparticle treatment. The efficacy parameters included tumor volume measurements from day 0 through 28 days post-treatment, terminal tumor weight measurements, tumor density and morphology assessment …

The Use Of Targeted Charge-Reversal Nanoparticles (Tcrns) To Investigate Nuclear Delivery Of Fluorescent Agents To Cancer Cells: Implications For Novel Prostate And Breast Cancer Therapy, Mario Dance

Theses and Dissertations

Nanotechnology has recently emerged as a strong contributor toward research efforts to develop targeted systems of drug delivery in cancer therapy. Our work investigates the therapeutic potential of Targeted Charge-Reversal Nanoparticles (TCRNs), a novel nanoparticle with in vitro evidence of nuclear drug delivery. Using M12 prostate cancer cells, MDA-MB-231 breast cancer cells, and modified derivatives of these cell lines, we investigated the ability of Folic Acid-tagged TCRNs to deliver Nile Red and Dimethyl Indole Redfluorescent (DiR) fluorescent dyes to the nucleus of cells using confocal microscopy and in vivo biphontonic imaging using Xenogen® Technology. Confocal imaging with the SCP28 derivative …

Role Of Hypoxia And Glycolysis In The Development Of Multi-Drug Resistance In Human Tumor Cells And The Establishment Of An Orthotopic Multi-Drug Resistant Tumor Model In Nude Mice Using Hypoxic Pre-Conditioning, Lara Milane, Zhenfeng Duan, Mansoor M. Amiji

Mansoor M. Amiji

Background The development of multi-drug resistant (MDR) cancer is a significant challenge in the clinical treatment of recurrent disease. Hypoxia is an environmental selection pressure that contributes to the development of MDR. Many cancer cells, including MDR cells, resort to glycolysis for energy acquisition. This study aimed to explore the relationship between hypoxia, glycolysis, and MDR in a panel of human breast and ovarian cancer cells. A second aim of this study was to develop an orthotopic animal model of MDR breast cancer. Methods Nucleic and basal protein was extracted from a panel of human breast and ovarian cancer cells; …

Indigenous Beliefs About Biomedical And Bush Medicine Treatment Efficacy For Indigenous Cancer Patients: A Review Of The Literature, K. D. Schaik, S. C. Thompson

Aboriginal Policy Research Consortium International (APRCi)

Background: Australia’s Indigenous people suffer from higher cancer mortality than non-Indigenous Australians, a discrepancy partly caused by differences in beliefs about treatment efficacy between Indigenous patients and their non-Indigenous healthcare providers. This paper critically reviews the literature associated with Indigenous beliefs about cancer treatment, both ‘bush medicine’ and biomedical, in order to provide recommendations to healthcare providers about accommodating Indigenous beliefs when treating cancer.

Methods: A search was undertaken of peer-reviewed journal papers using electronic databases and citation snowballing. Papers were selected for inclusion based upon relevance to themes that addressed the research questions. Results: Literature suggests that Indigenous beliefs …

Estimating Water Supply Arsenic Levels In The New England Bladder Cancer Study, John R. Nuckols, Laura E. Beane-Freeman, Jay H. Lubin, Matthew S. Airola, Dalsu Baris, Joseph D. Ayotte, Anne Taylor, Chris Paulu, Margaret R. Karagas, Joanne Colt

Dartmouth Scholarship

Background: Ingestion of inorganic arsenic in drinking water is recognized as a cause of bladder cancer when levels are relatively high (≥ 150 µg/L). The epidemiologic evidence is less clear at the low-to-moderate concentrations typically observed in the United States. Accurate retrospective exposure assessment over a long time period is a major challenge in conducting epidemiologic studies of environmental factors and diseases with long latency, such as cancer.

Objective: We estimated arsenic concentrations in the water supplies of 2,611 participants in a population-based case–control study in northern New England.

Methods: Estimates covered the lifetimes of most study participants and were …

The Growth Suppressing Effects Of Girinimbine On Hepg2 Involve Induction Of Apoptosis And Cell Cycle Arrest, Syam Mohan

Syam Mohan

Murraya koenigii is an edible herb widely used in folk medicine. Here we report that girinimbine, a carbazole alkaloid isolated from this plant, inhibited the growth and induced apoptosis in human hepatocellular carcinoma, HepG2 cells. The MTT and LDH assay results showed that girinimbine decreased cell viability and increased cytotoxicity in a dose-and time-dependent manner selectively. Girinimbine-treated HepG2 cells showed typical morphological features of apoptosis, as observed from normal inverted microscopy and Hoechst 33342 assay. Furthermore, girinimbine treatment resulted in DNA fragmentation and elevated levels of caspase-3 in HepG2 cells. Girinimbine treatment also displayed a time-dependent accumulation of the Sub-G(0)/G(1) …

An Exploratory Investigation Of The Effects Of Dragon Boating On The Psychosocial Well-Being Of Female Cancer Survivors, Clara Therese Louise Vanherweg

Master's Theses

The purpose of this study was to prospectively examine the effects of dragon boat participation on the psychosocial well-being of female cancer survivors over time and compared with the population-based norms. Nine female cancer survivors belonging to the dragon boat team, SurvivOars, participated in the initial measurement process. The measurement packet was 21 page compilation of psychosocial questionnaires capturing demographics, quality of life, moods, depressive symptoms, perceived stress, self-esteem, self-efficacy, social support, physical activity levels, body image, and sedentary behaviors. After 8 weeks, 8 subjects completed the same follow-up questionnaire to assess changes in psychosocial variables over time. Scores were …

Oncology Nurses' Impact Scores For Obstacles And Supportive Behaviors At The End Of Life, Joan M. Collett

Theses and Dissertations

Introduction: Oncology nurses provide end-of-life (EOL) care to their patients daily. Oncology nurses' perceptions regarding how to provide quality care to dying patients could be an important addition to the ongoing research on quality EOL care. The purpose of this study was to determine the impact of specific obstacle and supportive behaviors in EOL care as perceived by hospital-based oncology nurses. This study extended the work of Beckstrand, Moore, Callister, and Bond (2009).

Methods: A 69-item questionnaire adapted from previous studies (Beckstrand & Kirchhoff, 2005; Beckstrand, Smith, Heaston, & Bond, 2008) was sent to 1,000 nurses who were members of …

The Electrochemical Detection Of Interleukin-8, Cancer Biomarker, Based On A Gold Nanoparticle Platform And Its Political Implications, Jaimee Doucette

Pell Scholars and Senior Theses

Herein we report on an ultrasensitive immunosensor based on glutathione protected gold nanoparticle (GSH-AuNP) for the electrochemical detection of interleukin 8 (IL-8), cancer biomarker in calf serum and proof of concept IL-8 detection in HNSCC cells. GSH-AuNP were bioconjugated to the primary antibodies (Ab1) and used to capture human IL-8 in a sandwich electrochemical immunoassay coupled to horseradish peroxidase enzyme labels. Using the optimized concentrations of the primary (Ab1) and secondary antibodies (Ab2), two sensor approaches were used to measure ultra low (≤ 500 fg mL-1) and elevated levels of IL-8. Biotinylated Ab2 bound to streptavidin HRP with 14-16 labels …

Nanomaterials And Block Copolymers For Overcoming Multidrug Resistance In Cancer, Wesley Livingstone

Loma Linda University Electronic Theses, Dissertations & Projects

The development of multidrug resistance in cancer is one of the leading causes for decreased chemotherapy efficacy and is particularly threatening to aggressive cancers such as that of the pancreas. In cancers where chemotherapy is amongst the few treatment options, it is crucial to develop chemotherapeutics that either bypass or control the development of multidrug resistance. Polymeric nanomaterials such as Pluronics® are of current interest due to their ability to perform these functions in addition to enhancing pro-apoptotic mechanisms. Using the respectively known chemosensitive and chemoresistant pancreatic adenocarcinoma cell lines MiaPaCa-2 and PANC-1, an in vitro analysis of the synergistic …

Heat Shock Proteins As Novel Cancer Therapeutics: Targeting The Hallmarks Of Cancer, Chao Li

Theses and Dissertations

Molecular chaperones, commonly known as heat shock proteins (HSPs), are essential for mammalian cells to maintain homeostasis, and HSPs function by inducing an ATPase-coupled structural change, followed by interactions with diverse co-chaperones and over 200 client proteins implicated in many critical signaling networks. These highly expressed HSPs participate in the onset and progression of several human diseases including cancer, and their connection with tumorigenesis has facilitated research and clinical trials related to targeting HSPs as a novel anti-tumor therapy. The predominant mechanism of chaperone inhibition is through either disruption of the HSP association with client protein or an altered binding …

Dance/Movement Therapy In Inpatient Hematological Cancer Treatment, Megan Hall

Creative Arts Therapies Theses

This quasi-experimental, mixed methods study examined the effects of dance/movement therapy on three types of outcomes (quality of life, anxiety and depression, and coping methods) for adult cancer inpatients who received treatment for a hematological cancer diagnosis. It was hypothesized that if hematological cancer patients participated in three or more dance/movement therapy sessions, then they would find a greater quality of life, decreased feelings of anxiety and depression, and an improvement in coping methods. Those patients who participated in three or more dance/movement therapy sessions while in the hospital formed the intervention group, and those who did not formed the …

The Challenges Of Oral Agents As Antineoplastic Treatments, Barbara A. Given, Sandra L. Spoelstra, Marcia Grant

Peer Reviewed Articles

OBJECTIVE: Given the increasing use of oral antineoplastic agents in cancer management, patient adherence is critical to successful treatment outcomes. This article reviews the scope of the problem and issues of adherence to oral antineoplastic agents.

DATA SOURCES: Research based and other articles, newsletters, and conference presentations.

CONCLUSION: Suboptimal adherence to oral antineoplastic agents is a significant clinical problem that may result in disease or treatment complications, adjustment in treatment regimen, disease progression, and premature death.

IMPLICATIONS FOR NURSING PRACTICE: Healthcare providers need to monitor and facilitate adherence by identifying barriers and implementing strategies to assure adherence, and therefore, improve …

Assessment And Measurement Of Adherence To Oral Antineoplastic Agents, Sandra L. Spoelstra, Charles W. Given

Peer Reviewed Articles

OBJECTIVES: The increase in oral anticancer medications with complex regimens creates a need to assure patients are taking therapeutic dosages as prescribed. This article reviews the assessment and measurement of adherence to oral antineoplastic agents.

DATA SOURCE: Research and journal articles from CINAHL and Pub Med.

CONCLUSION: Assessing and measuring adherence to oral antineoplastic should include three dimensions: the percentage of medications taken, the duration, and the timing of taking the medication.

IMPLICATIONS FOR PRACTICE: Clinicians need to conduct ongoing assessment and measurement of adherence to oral antineoplastic agents. This includes eliciting patient report of adherence, pill counts, drug diaries, …

Policy Implications Of Oral Agents, Sandra L. Spoelstra, Barbara A. Given, Charles W. Given, Marcia Grant

Peer Reviewed Articles

OBJECTIVE: With the increasing use of oral antineoplastic agents in cancer management, patients and family members need to understand of how to obtain, safely handle, and store the medication, how and when the medications should be taken, and when to report toxic side effects to accomplish efficacious treatment.

DATA SOURCES: Research based articles and conference presentations.

CONCLUSION: Cancer centers to modify policies, protocols, or practices to assure safe and proper administration of oral antineoplastic agents.

IMPLICATIONS FOR NURSING PRACTICE: Clinicians need to monitor and facilitate administration of oral antineoplastic agents, and ultimately improve clinical outcomes.

Atm Signaling To Tsc2: Mechanisms And Implications For Cancer Therapy, Angela Alexander

Dissertations & Theses (Open Access)

Ataxia telangiectasia mutated (ATM) is a critical component of the cellular response to DNA damage, where it acts as a damage sensor, and signals to a large network of proteins which execute the important tasks involved in responding to the damage, namely inducing cell cycle checkpoints, inducing DNA repair, modulating transcriptional responses, and regulating cell death pathways if the damage cannot be repaired faithfully. We have now discovered that an additional novel component of this ATM-dependent damage response involves induction of autophagy in response to oxidative stress. In contrast to DNA damage-induced ATM activation however, oxidative stress induced ATM, occurs …

Rna Interference For Improving The Outcome Of Islet Transplantation And Polymeric Micelle‑Based Nanomedicine For Cancer Therapy, Feng Li

Theses and Dissertations (ETD)

Ex vivo gene transfer has been used to improve the outcome of islet transplantation for treating type I diabetes. RNA interference is an effective approach for reducing gene expressions at the mRNA level. The application of RNA interference to improve the outcome of islet transplantation was reviewed in Chapter 2, where I summarized biological obstacles to islet transplantation, various types of RNAi techniques, combinatorial RNAi in islet transplantation, and different delivery strategies.

Upregulation of inducible nitric oxide synthase (iNOS) and subsequent product of radical nitric oxide (NO) impair islet β cell function. Therefore, we hypothesized that iNOS gene silencing could …

From Isolated Tumour Cells To Overt Lymph Node Metastases: Biological And Imaging Studies On The Development Of Experimental Lymph Node Metastases, Michael M. Lizardo

Electronic Thesis and Dissertation Repository

Metastatic colonization and establishment of overt lymph node (LN) tumours indicates poor prognosis for cancer patients. However, the basic biology that influences the development of LN metastasis is poorly understood due to the lack of basic animal models. The following work provides a new lymph node experimental metastasis assay (LEMA) that permits the assessment of tumour cell fate after they arrest in draining LNs. In using this new model, we discovered that only 8% of the tumour cells that arrive in the LN are successful in forming overt tumours. This work also explored the use of imaging approaches to monitor …

Myocardial Dysfunction In An Animal Model Of Cancer Cachexia, Hui Xu, Danielle Crawford, Kirk R. Hutchinson, Dane J. Youtz, Pamela A. Lucchesi, Markus Velten, Donna O. Mccarthy, Loren E. Wold

College of Nursing Faculty Research and Publications

Aims

Fatigue is a common occurrence in cancer patients regardless of tumor type or anti-tumor therapies and is an especially problematic symptom in persons with incurable tumor disease. In rodents, tumor-induced fatigue is associated with a progressive loss of skeletal muscle mass and increased expression of biomarkers of muscle protein degradation. The purpose of the present study was to determine if muscle wasting and expression of biomarkers of muscle protein degradation occur in the hearts of tumor-bearing mice, and if these effects of tumor growth are associated with changes in cardiac function.

Main methods

The colon26 adenocarcinoma cell line was …

Therapeutic Touch And Cancer Cells, Gloria A. Gronowicz

UCHC Graduate School Masters Theses 2003 - 2010

Energy medicine therapies based on a human biofield have been practiced for thousands of years and can trace their origin in Ayurveda. Our goal was to determine if Therapeutic Touch (TT), a more recently developed energy medicine practice, had any effects on cancer cells. Previous work in our laboratory demonstrated that TT significantly increased the growth of normal human osteoblasts and increased the synthesis of bone matrix proteins and mineralization in cell culture. In this study as was practiced in our previous studies, TT was performed twice a week for 10 minutes and was compared to untreated cultures and 'placebo-treated" …

Colorectal Cancer In Montgomery County, Ohio: A Descriptive Analysis, Ursula Turner

Master of Public Health Program Student Publications

In the United States colorectal cancer (CRC) is one of the most common malignancies, and is the third leading cause of cancer deaths (Sharma & O’Keefe, 2007). Approximately 270,000 cases of colorectal cancer were diagnosed in 2008 with 81,900 cases resulting in death. There were 16,520 cases diagnosed in African Americans and 7,120 resulted in death or significant illness (American Cancer Society, 2008). Mortality as the result of CRC is greater among the African American population with 27% and 38% higher death rates for African American males and females when compared with Caucasian males and females (Agarwal, 2005). CRC is …

The Impact Of Folate Deficiency On The Base Excision Repair Pathway: Analysis Of Enzyme Coordination In Response To Dna Damage And Imbalanced Repair, Amanda Pilling

Wayne State University Dissertations

The condition of folate deficiency has been implicated in carcinogenesis, with the strongest evidence formulated in colon cancer. The role of folate in DNA repair, DNA synthesis and methylation reactions renders this nutrient an valuable target for studying the onset and progression of cancer. Using molecular techniques to determine gene and protein expression, enzyme activity and methylation status elucidates the mechanism of DNA repair and damage in folic acid deficient animals in response to carcinogen. The findings presented in this study indicate failure to remove and repair damage in the condition of folate deficiency and suggest that the accumulation of …

Hedgehog Signaling: A Potential Therapeutic Target For Non-Small Cell Lung Cancer, Ma'in Yehya Maitah

Wayne State University Dissertations

The American Cancer Society estimated that 222,520 Americans were diagnosed with lung cancer and 157,300 died of lung cancer in 2010 (Jemal et al. 2009, 225-249;Jemal et al. 2011, 69-90). The clinical outcome of patients diagnosed with non-small cell lung cancer (NSCLC), the major lung cancer sub-types, is very poor, which calls for innovative research for finding novel therapeutic targets and agents for better treatment outcome.

Emerging evidences have suggested that a phenomenon called Epithelial-to-Mesenchymal Transition (EMT), which shares similar molecular characteristics with cancer stem-like cells, contributes to lung cancer treatment failure. In view of the fact that EMT process …

Cancer-Behavior-Coping In Women With Breast Cancer: Effect Of A Cancer Self-Management Program, Siew Yim Loh Assoc Prof

Siew Yim Loh

Objective: The Cancer Behavior Inventory (CBI), a measure of self-efficacy for coping with cancer, was used to examine the feasibility and impact of a self-management program for women with breast cancer. This controlled clinical trial was conducted on newly diagnosed breast cancer patients, using a time series, block design. Sixty-nine patients were allocated to receive four weekly sessions of the self-management training program, while 78 patients were allocated to the control (usual-care) group. Results: A significant difference was found between the means of the experimental and the control group at post-test (T2; P=.01) and at follow-up (T3; P=.02). The multivariate …

Barriers To Exercise: Perspectives From Multiethnic Cancer, Siew Yim Loh Assoc Prof

Siew Yim Loh

Background: Many cancer survivors are still not active enough to reap the benefits of physical activity. This study aimed to explore the correlation between perceived barriers and participation in exercise among multiethnic Malaysian women with breast cancer. Methods: A cross-sectional study using a pre-post questionnaire and a media-clip as a cancer control strategy was conducted on a random sample of women with breast cancer. The tools were structured questionnaires to collect socio-medical demographic and physical activity data (e.g. barriers, exercise self-efficacy). Results: A statistically significant relationship between level of physical activity before and after diagnosis of breast cancer (n=51, χ2=70.14, …