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The purpose of this project is to explore the benefit of using prodrugs in chemotherapy, as well as to explain the concept of angiogenesis and the importance of this process to tumor development. Angiogenesis is the formation of new blood capillaries that are necessary for the survival of a

The purpose of this project is to explore the benefit of using prodrugs in chemotherapy, as well as to explain the concept of angiogenesis and the importance of this process to tumor development. Angiogenesis is the formation of new blood capillaries that are necessary for the survival of a tumor, as a tumor cannot grow larger than 1-2 mm3 without developing its own blood supply. Vascular disrupting agents, such as iodocombstatin, a derivative of combretastatin, can be used to effectively cut off the blood supply to a growing neoplasm, effectively inhibiting the supply of oxygen and nutrients needed for cell division Thus, VDAs have a very important implication in terms of the future of chemotherapy. A prodrug, defined as an agent that is inactive in the body until metabolized to yield the drug itself, was synthesized by combining iodocombstatin with a β-glucuronide linker. The prodrug is theoretically hydrolyzed in the body to afford the active drug by β-glucuronidase, an enzyme that is produced five times as much by cancer cells as by normal cells. This effectively creates a “magic-bullet” form of chemotherapy, known as Direct Enzyme Prodrug Therapy (DEPT).
ContributorsClark, Caroline Marie (Author) / Pettit, George Robert (Thesis director) / Melody, Noeleen (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor)
Created2015-05
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Description
Chemotherapy refers to the use of chemical agents to inhibit or stop the growth of rapidly dividing cancer cells. There are many side effects of systemic chemotherapy, which are caused because the drug not only kills cancer cells but healthy cells as well (American Cancer Society, 2017). Common side effects

Chemotherapy refers to the use of chemical agents to inhibit or stop the growth of rapidly dividing cancer cells. There are many side effects of systemic chemotherapy, which are caused because the drug not only kills cancer cells but healthy cells as well (American Cancer Society, 2017). Common side effects include fatigue, hair loss, bruising/ bleeding, infection, anemia, nausea and vomiting, appetite changes, constipation, diarrhea, oral sores, nerve and muscle pain, dry skin and color change, kidney dysfunction, weight loss, cognitive difficulties, mood changes, sexual dysfunction, and fertility problems (American Cancer Society, 2017). Research shows that complementary and alternative medicine (CAM) may help relieve some of the side effects of chemotherapy. Examples of CAM include herbal medicine, dietary supplements, acupuncture, yoga, Tai Chi, massage, electromagnetic therapy, meditation, biofeedback, music, dance, and guided imagery (Johns Hopkins Medicine, 2017). The aim of this creative project was to design a third-party website to provide information to patients undergoing chemotherapy and their family members regarding the use of CAM for the treatment of chemotherapy-induced side effects. Rationale for this project stemmed from a preliminary research step. We analyzed and coded for presence or absence of CAM-specific information on the websites of 20 National Cancer Institute-designated comprehensive cancer centers across the United States. Fifty percent of websites were double-coded. Inter-rater reliabilities (kappa values) for coding of the presence or absence of specific CAM therapies ranged from 0.38 for acupuncture to 1.00 for exercise and yoga, expressive arts, and herbs (mean kappa = 0.75). Fourteen of the 20 websites mentioned meditation or mindfulness; 13 mentioned nutrition; 12 mentioned acupuncture; 11 mentioned exercise or yoga; 11 mentioned massage; 8 mentioned expressive arts; and 3 mentioned herbs. Frequencies for presence of either a description of the specific CAM therapy or an explanation of how the therapy works were lower. We then conducted a literature review using PUBMED to find peer-reviewed research on the efficacy of the previously described seven CAM therapies. The literature search focused on systematic reviews and meta-analyses published within the past 10 years. Based on the literature obtained, we created summaries of the scientific evidence for each CAM therapy. This information is now provided on our third-party website in tabular form with summative statements. The website describes in lay language: chemotherapy, chemotherapy side effects, CAM, seven specific CAM therapies, and evidence for the efficacy or lack thereof of each. Per the American Nurses Association (2015), it is our responsibility to advocate for our patients through education and holistic treatment. The role of the nurse is to educate the patient about treatment options; however, it is not within the nurse's scope of practice to prescribe a treatment. As such, this website should not be viewed as a prescription for CAM therapies, but instead as a user-friendly and easily accessible resource for informed decision-making regarding the adjunctive use of CAM therapies.
Created2017-12
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Description
Purpose/Background: Children exposed to adverse childhood experiences (ACEs) and toxic stress have an increased risk of developing chronic illness and early death in the absence of protective factors. Many providers feel inadequately prepared to screen for and treat ACEs. This quality improvement project, based on the Health

Purpose/Background: Children exposed to adverse childhood experiences (ACEs) and toxic stress have an increased risk of developing chronic illness and early death in the absence of protective factors. Many providers feel inadequately prepared to screen for and treat ACEs. This quality improvement project, based on the Health Belief Model, investigated if providing ACEs education before a screening program is effective in improving attitudes, knowledge, and the number of completed screenings. Method: The project was conducted at a pediatric primary care practice in the southwestern United States. All providers voluntarily consented to attend four education sessions: 1) Trauma overview, 2) Trauma physiology, 3) Trauma-informed care, 4) Screening tool/referral process. An anonymous pre/post-education Likert-Scale survey was completed to assess knowledge and attitudes about ACEs and screening. The number of completed ACEs screening tools and referrals made were collected four- and eight-weeks post-implementation. Results: Data were analyzed using Intellectus Statistics SoftwareTM. There was a significant increase in ACEs knowledge from the pre-test (p= .011, ?=.05). There was not a significant change in attitudes from the pre-test (p=.066, ?=.05). However, the mean pre- to post-survey scores increased for both categories, indicating improved attitudes. Over the first four weeks, 75% of eligible children were screened and 6% were referred to an ACEs resource program. In the second four weeks, 56% of children were screened and 8.6% were referred. Discussion: A comprehensive education program for providers can improve knowledge about ACEs screening, leading to improved screening practices, early identification, and the introduction of protective resources.
Created2022-04-29
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Description
Introduction: Electronic cigarettes (e-cigarettes) among youth has increased drastically in recent years. E-cigarettes are being used with nicotine which can lead to dependency. Healthcare providers (HPs) are in a unique position to advise against the use of e-cigarettes. Recent studies report a lack of formal education among HPs

Introduction: Electronic cigarettes (e-cigarettes) among youth has increased drastically in recent years. E-cigarettes are being used with nicotine which can lead to dependency. Healthcare providers (HPs) are in a unique position to advise against the use of e-cigarettes. Recent studies report a lack of formal education among HPs about e-cigarettes. The purpose of this quality improvement project is to examine how increasing e-cigarette awareness among HPs can change their behavior on patient counseling against e-cigarette use. Methods: A modified E-cigarette Knowledge, Beliefs and Attitude Questionnaire was proctored before and after a virtual educational training about e-cigarettes. All advanced HPs employed, in a Southwestern state, at the organization were invited to participate by email. Results: 29 participants completed the pre-survey, and 4 participants completed the post-survey. While 90% of the participants reported that they first learned about e-cigarettes through informal sources, 72% of the participants reported interest in learning more about e-cigarettes to enhance their practice. Further, a two-tailed Mann-Whitney U test was significant on the “e-cigarettes are helpful aid for smoking cessation” statement based on an alpha value of 0.05, U = 12, z = -2.69, p = .007. Conclusions: Increasing the knowledge about e-cigarettes among HPs is critical in decreasing nicotine use among the public. This project will help in the fight against the use of tobacco products, and adds to the literature on how formal education about e-cigarettes among HPs can increase their intention to screen and counsel patients.
Created2021-05-01
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Description
Problem Statement & Purpose: Cervical cancer screening rates for a Federally Qualified Health Center (FQHC) in rural Northern Arizona is 78%, which is below the Healthy People 2030 goal of 84.3%. Identification of socioeconomic barriers unique to rural women through the use of an intake survey can improve cervical cancer

Problem Statement & Purpose: Cervical cancer screening rates for a Federally Qualified Health Center (FQHC) in rural Northern Arizona is 78%, which is below the Healthy People 2030 goal of 84.3%. Identification of socioeconomic barriers unique to rural women through the use of an intake survey can improve cervical cancer screening rates. This project was guided by the Social Cognitive Theory (SCT). SCT proposes that behavioral change is determined by environmental, social, personal, and behavioral elements. Methods: At a one-day well-woman event called, “See, Test, and Treat” hosted by the FQHC, an anonymous intake survey was implemented that identified participant demographics, basic cervical cancer knowledge, and perceived socioeconomic barriers to routine cervical cancer screening. Participants were recruited through the FQHC. Participant inclusion criteria: Arizona resident, uninsured, underinsured, 21-65 years old, English or Spanish speaking. Results: Descriptive statistics were utilized to evaluate the survey responses, reliability, and validity of responses unknown due to self-reported responses. A total of 18 surveys were completed with a final yield of (n = 10). Surveys didn’t identify barriers to routine cervical cancer screening; however, an unawareness of cervical cancer risk factors including multiple sexual partners (n = 5, 50.00%), sex at an early age (n = 4, 40.00%), and misperception that cervical cancer is genetic (n = 7, 70.00%) was identified. Implications for Practice: A need for cervical cancer education exists within the surveyed community. Providing rural women with knowledge regarding cervical cancer can improve screening rates.
Created2022-04-29
Description
Purpose & Background: This project evaluates the impact of education on a provider’s intent to screen for vitamin D deficiency in adults with depression. An internal Quality Improvement (QI) study at a local mental health primary care clinic revealed that only 1 in 3 patients with depression were routinely screened

Purpose & Background: This project evaluates the impact of education on a provider’s intent to screen for vitamin D deficiency in adults with depression. An internal Quality Improvement (QI) study at a local mental health primary care clinic revealed that only 1 in 3 patients with depression were routinely screened for vitamin D deficiency. Vitamin D is a crucial component of numerous systemic functions, including mental health, specifically depression. Methods: This QI project used the Rosswurm and Larrabee Model implementation framework. Institution Review Board (IRB) expedited review approval was received. This project was conducted at 10 Veteran’s Affairs (VA) primary care clinics in Arizona. An initial email with a recruitment flyer was sent to providers to launch the project. A second email was sent to participants who volunteered to participate in the project, with instructions and links to the asynchronous pre-survey, recorded education PowerPoint, and post-survey. Responses were analyzed using Intellectus Statistics software. Results: Provider knowledge of impact and intent to screen for vitamin D deficiency increased after viewing a brief education video (n=30). Frequency distribution analyses revealed a 23% average increase in agreement to screen for vitamin D deficiency at annual visits, “at-risk” individuals, knowledge of the association, and intent to screen regularly in depression. Conclusion: The education intervention was found to positively impact the provider’s intent and demonstrate the importance of screening for vitamin D deficiency in adults with depression.
Created2022-05-02
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Description
The physiologic changes that occur during pregnancy can increase risk of maternal periodontal disease. This is more often observed in women seeking prenatal care in community health centers. Poor oral health in pregnancy can negatively impact birth outcomes and the oral health of children born to mothers with a history

The physiologic changes that occur during pregnancy can increase risk of maternal periodontal disease. This is more often observed in women seeking prenatal care in community health centers. Poor oral health in pregnancy can negatively impact birth outcomes and the oral health of children born to mothers with a history of perinatal periodontal disease. Despite the evidence of importance and safety, oral health continues to be overlooked during prenatal care visits. There is a lack of interprofessional collaboration between prenatal and dental providers leading to missed opportunities and preventable adverse maternal and fetal health outcomes. Several professional organizations have affirmed that dental care and treatment during pregnancy is safe and recommended to prevent complications during and after pregnancy. In previous studies, barriers preventing pregnant women from receiving oral health exams, oral health education, and referrals include lack of provider awareness regarding the importance of oral health, lack of dental coverage for pregnant women, and reluctance among dental providers to treat women during pregnancy. The Maternal Oral Health Screening (MOS) tool has been used successfully to increase oral health screening in early pregnancy. The MOS was installed in a prenatal care intake form in an electronic health record at a federally qualified health center (FQHC). An education program about oral health care recommendations and safety of oral health care in pregnancy was presented to prenatal care staff. The intervention resulted in increased oral health screening and referral for dental care for pregnant people enrolled at the FQHC.
Created2021-04-28
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Description

Background:
Thirty to fifty percent of cancer patients undergoing chemotherapy will experience
chemotherapy induced nausea and or vomiting (CINV) despite the use of antiemetic prophylaxis Uncontrollable CINV can lead to complications that add extra stress to patients, increase in healthcare costs, and utilization of resources. CINV can lead to chemotherapy dose reductions,

Background:
Thirty to fifty percent of cancer patients undergoing chemotherapy will experience
chemotherapy induced nausea and or vomiting (CINV) despite the use of antiemetic prophylaxis Uncontrollable CINV can lead to complications that add extra stress to patients, increase in healthcare costs, and utilization of resources. CINV can lead to chemotherapy dose reductions, treatment delays, chemotherapy changes, or discontinuation of treatment. Guidelines exist to better prevent and treat CINV. Evidence supports the use of guidelines to prevent CINV, however patients still suffer from CINV often due to a lack of guideline adherence.

Objectives:
The purpose of this project was to increase CINV guideline adherence by increasing knowledge of antiemetic guidelines utilizing an educational intervention for providers and nurses at an outpatient oncology office.

Methods:
A brief educational intervention on CINV and recommended NCCN guidelines was
conducted with providers and nurse (n=6) at an oncology practice in Southwestern United States. An evaluation to assess change in knowledge was performed using a pre and post test format. Statistical analysis was performed using descriptive statistics, McNemar tests and Wicoxan Signed Rank Test.

Findings:
There was a significant effect on knowledge of NCCN antiemetic guidelines (Z=-1.89, p=0.059, mean 2.5) post intervention. There also was a significant impact on likelihood to use guidelines in practice (Z=-1.89, p=0.059, mean 2.5). Increasing awareness and likelihood to CHEMOTHERAPY INDUCED NAUSEA AND VOMITING 3 follow recommended guidelines may improve CINV symptoms in patients undergoing chemotherapy and improve the treatment outcomes for these patients.

ContributorsBarbosa, Jennifer (Author) / Baker, Laurie (Thesis advisor)
Created2018-04-29
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Description
Currently, treatment for multiple myeloma (MM), a hematological cancer, is limited to post-symptomatic chemotherapy combined with other pharmaceuticals and steroids. Even so, the immuno-depressing cancer can continue to proliferate, leading to a median survival period of two to five years. B cells in the bone marrow are responsible for generating

Currently, treatment for multiple myeloma (MM), a hematological cancer, is limited to post-symptomatic chemotherapy combined with other pharmaceuticals and steroids. Even so, the immuno-depressing cancer can continue to proliferate, leading to a median survival period of two to five years. B cells in the bone marrow are responsible for generating antigen-specific antibodies, but in MM the B cells express mutated, non-specific monoclonal antibodies. Therefore, it is hypothesized that antibody-based assay and therapy may be feasible for detecting and treating the disease. In this project, 330k peptide microarrays were used to ascertain the binding affinity of sera antibodies for MM patients with random sequence peptides; these results were then contrasted with normal donor assays to determine the "immunosignatures" for MM. From this data, high-binding peptides with target-specificity (high fluorescent intensity for one patient, low in all other patients and normal donors) were selected for two MM patients. These peptides were narrowed down to two lists of five (10 total peptides) to analyze in a synthetic antibody study. The rationale behind this originates from the idea that antibodies present specific binding sites on either of their branches, thus relating high binding peptides from the arrays to potential binding targets of the monoclonal antibodies. Furthermore, these peptides may be synthesized on a synthetic antibody scaffold with the potential to induce targeted delivery of radioactive or chemotherapeutic molecular tags to only myelomic B cells. If successful, this would provide a novel alternative to current treatments that is less invasive, has fewer side effects, more specifically targets the cause of MM, and reliably diagnoses the cancer in the presymptomatic stage.
ContributorsBerry, Jameson (Co-author) / Buelt, Allison (Co-author) / Johnston, Stephen (Thesis director) / Diehnelt, Chris (Committee member) / School of Molecular Sciences (Contributor) / School of International Letters and Cultures (Contributor) / Division of Teacher Preparation (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
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Description
Background: Esophageal adenocarcinoma (EAC) is one of the only malignancies whose incidence is rising in the United States. Current multidrug treatment for EAC has considerable toxic side effects that necessitate the development of less toxic, more specific target drugs. Recent large scale genomic analysis reveals that TP53 is the most

Background: Esophageal adenocarcinoma (EAC) is one of the only malignancies whose incidence is rising in the United States. Current multidrug treatment for EAC has considerable toxic side effects that necessitate the development of less toxic, more specific target drugs. Recent large scale genomic analysis reveals that TP53 is the most frequently inactivated gene in EAC. One of the primary functions of TP53 and its gene product, the tumor suppressor p53, is in regulation of DNA repair in response to DNA damage. Inactivation of TP53 results in loss of the G1/S cell cycle checkpoint, and dependence on the G2/M checkpoint for DNA repair. Activity of cyclin-dependent kinase 1 (CDK1) is necessary for cells to exit the G2/M checkpoint and enter mitosis. Phosphorylation of CDK1 by the wee1 kinase inhibits CDK1 in response to DNA damage, allowing cells to maintain G2 arrest and repair the damaged DNA. Active in normal cells, wee1 kinase is critical in cancer cells to promote DNA repair and cell survival in response to DNA damage, particularly from commonly used DNA damaging therapies. AZD1775 is a small molecule inhibitor of wee1 kinase, currently under investigation in clinical trials. AZD1775 differentially targets cancer cells by blocking wee1 mediated inhibition of CDK1 and consequently preventing G2/M arrest in response to DNA damage. Combination of AZD1775 with DNA damaging agents is thought to push cancer cells with damaged DNA through to mitosis and initiate apoptosis instead of G2/M arrest and DNA repair. Based upon the incidence of TP53 mutation in EAC, we hypothesize that treatment with a DNA damaging agent in combination with AZD1775 will be as effective at eliciting DNA damage and cell death as the more toxic current standard of care, which is comprised of treatment with cisplatin, docetaxel, and radiation. Methods: p53 mutant EAC cell lines were dosed with cisplatin, AZD1775, and the combination of cisplatin and AZD1775, and then assayed for viability. Nude mice were implanted with p53 mutant patient derived xenograft esophageal adenocarcinoma tumors and randomized for treatment with AZD1775 alone, cisplatin and AZD1775, radiation and AZD1775, cisplatin, docetaxel, and radiation or vehicle (control). Tumor volume was measured over the five week treatment course. Results: In vitro and in vivo assays reveal a potent synergistic effect between AZD1775 and DNA damaging agents that is as efficacious as the standard of care therapy. The difference in AZD1775 sensitivity among TP53 mutant EAC cell lines indicates that TP53 alone may not be an adequate biomarker to assess for AZD1775- mediated toxicity.
ContributorsBlomquist, Mylan (Author) / Maley, Carlo (Thesis director) / Inge, Landon (Committee member) / Oberle, Eric (Committee member) / College of Letters and Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05