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Cancer is one of the leading causes of death in the world and represents a tremendous burden on patients, families and societies. S. Typhimurium strains are specifically attracted to compounds produced by cancer cells and could overcome the traditional therapeutic barrier. However, a major problem with using live attenuated Salmonella

Cancer is one of the leading causes of death in the world and represents a tremendous burden on patients, families and societies. S. Typhimurium strains are specifically attracted to compounds produced by cancer cells and could overcome the traditional therapeutic barrier. However, a major problem with using live attenuated Salmonella as anti-cancer agents is their toxicity at the dose required for therapeutic efficacy, but reducing the dose results in diminished efficacy. In this project, we explored novel means to reduce the toxicity of the recombinant attenuated Salmonella by genetically engineering those virulence factors to facilitate maximal colonization of tumor tissues and reduced fitness in normal tissues. We have constructed two sets of Salmonella strains. In the first set, each targeted gene was knocked out by deletion of the gene. In the second set, the predicted promoter region of each gene was replaced with a rhamnose-regulated promoter, which will cease the synthesis of these genes in vivo, a rhamnose-free environment.
ContributorsBenson, Lee Samuel (Author) / Kong, Wei (Thesis director) / Martin, Thomas (Committee member) / Lake, Douglas (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / Center for Infectious Diseases and Vaccinology (Contributor) / School of Life Sciences (Contributor)
Created2013-05
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This thesis aimed to discover the risks of being a high achieving student, in secondary school contexts. With the growing concern for college admission, the high achieving student has become more prevalent within society. This paper sought to gain deeper understanding into the risks and implications of attempting to achieve

This thesis aimed to discover the risks of being a high achieving student, in secondary school contexts. With the growing concern for college admission, the high achieving student has become more prevalent within society. This paper sought to gain deeper understanding into the risks and implications of attempting to achieve excellence for high achievers. Interviews with three frontline personnel at two college preparatory schools and one International Baccalaureate degree program were conducted. It was found that in the studied geographic location, peer pressure and relations, parental pressure, perfectionism, extra-curricular activities, college admission, mental health implications, and coping mechanisms are themes that are highlighted through interviews with primary staff of high achieving students. Although personnel at each of these secondary schools were clearly aware of the stress experienced by their students, a disparity remained between how certain programs managed the stress and how it negatively impacted students. College preparatory faculties appear to be more involved and current on their students' stress. This study was limited and further research should be conducted in the future that expands on this concept in various sociogeographic locations.
ContributorsClaybaugh, Anna Katherine (Author) / Scheiner Gillis, Georganne (Thesis director) / Martin, Carol (Committee member) / Wells, Cornelia (Committee member) / Barrett, The Honors College (Contributor) / School of Social Transformation (Contributor) / W. P. Carey School of Business (Contributor) / Department of Psychology (Contributor)
Created2013-05
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Treating a minor diagnosed with cancer is a difficult situation. However, cases in which doctors and the patient's family disagree about the proper course of treatment present complex scenarios when it comes to patient care. The forced treatment of Cassandra Callender came as a result of challenging interactions between the

Treating a minor diagnosed with cancer is a difficult situation. However, cases in which doctors and the patient's family disagree about the proper course of treatment present complex scenarios when it comes to patient care. The forced treatment of Cassandra Callender came as a result of challenging interactions between the patient, the medical establishment, and the state. While the Connecticut Supreme Court mainly considered Cassandra's maturity and her mother's actions when deciding this case, there were more factors contributing to Cassandra's quality of care than her ability to make decisions. An evaluation of these factors demonstrates important implications for ensuring a minor receives the best care. Cassandra wished to pursue a means of treatment that would have fewer serious side effects than chemotherapy, but her assessment of her prognosis was markedly different than that of her doctors. While it is clear that Cassandra did not fully grasp the likelihood of death without chemotherapy treatment, her perspective should not have been fully ignored. The forced treatment inflicted serious (though short term) harm. To understand the full context of this case, this paper considers relevant legal doctrine, decision-making capabilities of minors, the problems and perils of chemotherapy, the role of the media, and the doctor-patient relationship. Developing a perspective based on these facets of Cassandra's case is important in determining how to facilitate the best interaction between doctor and patient and to make sure that future cases aid the patient and his or her family to make the best decision given the situation. Even when there is no consensus about what is best for a patient, more consideration must be given to the patient's perspective, beyond attempting to solely extend life.
ContributorsStoffer, Sidney Rae (Author) / Brian, Jennifer (Thesis director) / Cook-Deegan, Robert (Committee member) / School of Criminology and Criminal Justice (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
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The goal of this project was to design and create a genetic construct that would allow for <br/>tumor growth to be induced in the center of the wing imaginal disc of Drosophila larvae, the <br/>R85E08 domain, using a heat shock. The resulting transgene would be combined with other <br/>transgenes in

The goal of this project was to design and create a genetic construct that would allow for <br/>tumor growth to be induced in the center of the wing imaginal disc of Drosophila larvae, the <br/>R85E08 domain, using a heat shock. The resulting transgene would be combined with other <br/>transgenes in a single fly that would allow for simultaneous expression of the oncogene and, in <br/>the surrounding cells, other genes of interest. This system would help establish Drosophila as a <br/>more versatile and reliable model organism for cancer research. Furthermore, pilot studies were <br/>performed, using elements of the final proposed system, to determine if tumor growth is possible <br/>in the center of the disc, which oncogene produces the best results, and if oncogene expression <br/>induced later in development causes tumor growth. Three different candidate genes were <br/>investigated: RasV12, PvrACT, and Avli.

ContributorsSt Peter, John Daniel (Author) / Harris, Rob (Thesis director) / Varsani, Arvind (Committee member) / School of Molecular Sciences (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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Expectation for college attendance in the United States continues to rise as more jobs require degrees. This study aims to determine how parental expectations affect high school students in their decision to attend college. By examining parental expectations that were placed on current college students prior to and during the

Expectation for college attendance in the United States continues to rise as more jobs require degrees. This study aims to determine how parental expectations affect high school students in their decision to attend college. By examining parental expectations that were placed on current college students prior to and during the application period, we can determine the positive and negative outcomes of these expectations as well as the atmosphere they are creating. To test the hypothesis, an online survey was distributed to current ASU and Barrett, Honors College students regarding their experience with college applications and their parents' influence on their collegiate attendance. A qualitative analysis of the data was conducted in tandem with an analysis of several case studies to determine the results. These data show that parental expectations are having a significant impact on the enrollment of high school students in college programs. With parents placing these expectations on their children, collegiate enrollment will continue to increase. Further studies will be necessary to determine the specific influences these expectations are placing on students.

ContributorsScheller, Sara Matheson (Co-author) / Johnson, Benjamin (Co-author) / Kappes, Janelle (Thesis director) / Fairbanks, Elizabeth (Committee member) / Division of Teacher Preparation (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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Expectation for college attendance in the United States continues to rise as more jobs require degrees. This study aims to determine how parental expectations affect high school students in their decision to attend college. By examining parental expectations that were placed on current college students prior to and during the

Expectation for college attendance in the United States continues to rise as more jobs require degrees. This study aims to determine how parental expectations affect high school students in their decision to attend college. By examining parental expectations that were placed on current college students prior to and during the application period, we can determine the positive and negative outcomes of these expectations as well as the atmosphere they are creating. To test the hypothesis, an online survey was distributed to current ASU and Barrett, Honors College students regarding their experience with college applications and their parents' influence on their collegiate attendance. A qualitative analysis of the data was conducted in tandem with an analysis of several case studies to determine the results. These data show that parental expectations are having a significant impact on the enrollment of high school students in college programs. With parents placing these expectations on their children, collegiate enrollment will continue to increase. Further studies will be necessary to determine the specific influences these expectations are placing on students.

ContributorsJohnson, Benjamin Howard (Co-author) / Scheller, Sara (Co-author) / Kappes, Janelle (Thesis director) / Fairbanks, Elizabeth (Committee member) / Department of Psychology (Contributor) / School of Social Transformation (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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Description

Exploration of a mouse model (C57BL/6J) capable of demonstrating behavioral changes after adolescent social isolation that are consistent with prior findings may prove beneficial in later research. This study examined 2 proposed long-term effects of isolated housing (one mouse/cage), when compared to group housing (two mice/cage) during adolescence. Mice were

Exploration of a mouse model (C57BL/6J) capable of demonstrating behavioral changes after adolescent social isolation that are consistent with prior findings may prove beneficial in later research. This study examined 2 proposed long-term effects of isolated housing (one mouse/cage), when compared to group housing (two mice/cage) during adolescence. Mice were placed in their respective housing conditions after weaning (PND 21) and remained in those conditions until PND 60. The same cohorts were used in both phases of the experiment. Phase 1 sought to confirm previous findings that showed increases in ethanol intake after adolescent social isolation using a 2-bottle preference Drinking-in-the-Dark (DID) design over a 4-day period (PND 64-PND 67.). Phase 2 sought to elucidate the effects present after adolescent social isolation, as measured using response inhibition capabilities demonstrated during fixed-minimum interval (FMI) trials (PND 81-PND 111). Findings in phase 1 of the experiment were non-significant, save a strong tendency for female mice in both housing conditions to drink more as a proportion of their bodyweight (g/kg). However, a trend of lower bodyweight in single housed mice did exist, which does suggest that detrimental stress was applied via the used of adolescent isolation in that housing condition. Findings in phase 2 showed little effect of adolescent social isolation on mean inter-response time (IRT) at any criterion used (FMI-0, FMI-4, FMI-6). Evaluation of mean interquartile range (IQR) of IRTs showed a significantly greater amount of variation in IRT responses within single housed mice at the highest criterion (FMI-6), and a trend in the same direction when FMI-4 and FMI-6 were tested concurrently. Taken as a whole, the findings of this experiment suggest that the effect of adolescent social isolation on ethanol intake is far less robust than the effect of sex and may be difficult to replicate in a low-power study. Additionally, adolescent social isolation may interfere with the ability of mice to show consistent accuracy during FMI tasks or a delay in recognition of FMI criterion change.

ContributorsSmith, Nathaniel B (Author) / Sanabria, Federico (Thesis director) / Olive, Foster (Committee member) / Corbin, William (Committee member) / Department of Psychology (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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Description

Glioblastoma (GB) is one of the deadliest cancers and the most common form of adult primary brain tumors. SGEF (ARHGEF26) has been previously shown to be overexpressed in GB tumors, play a role in cell invasion/migration, and increase temozolomide (TMZ) resistance.[3] It was hypothesized parental LN229 cell lines with SGEF

Glioblastoma (GB) is one of the deadliest cancers and the most common form of adult primary brain tumors. SGEF (ARHGEF26) has been previously shown to be overexpressed in GB tumors, play a role in cell invasion/migration, and increase temozolomide (TMZ) resistance.[3] It was hypothesized parental LN229 cell lines with SGEF knockdown (LN229-SGEFi) will show decreased metabolism in the MTS assay and decreased colony formation in a colony formation assay compared to parental LN229 cells after challenging the two cell lines with TMZ. For WB and co-immunoprecipitation (co-IP), parental LN229 cells with endogenous SGEF and BRCA were expected to interact and stain in the BRCA1:IP WB. LN229-SGEFi cells were expected to show very little SGEF precipitated due to shRNA targeted knockdown of SGEF. In conditions with mutations in the BRCA1 binding site (LN229-SGEFi + AdBRCAm/AdDM), SGEF expression was expected to decrease compared to parental LN229 or LN229-SGEFi cells reconstituted with WT SGEF (LN229-SGEFi + AdWT). LN229 infected with AdSGEF with a mutated nuclear localization signal (LN229-SGEFi + AdNLS12m) were expected to show BRCA and SGEF interaction since whole cell lysates were used for the co-IP. MTS data showed no significant differences in metabolism between the two cell lines at all three time points (3, 5, and 7 days). Western blot analysis was successful at imaging both SGEF and BRCA1 protein bands from whole cell lysate. The CFA showed no significant difference between cell lines after being challenged with 500uM TMZ. The co-IP immunoblot showed staining for BRCA1 and SGEF for all lysate samples, including unexpected lysates such as LN229-SGEFi, LN229-SGEFi + AdBRCAm, and LN229-SGEFi + AdDM. These results suggested either an indirect protein interaction between BRCA1 and SGEF, an additional BRCA binding site not included in the consensus, or possible detection of the translocated SGEF in knockdown cells lines since shRNA cannot enter the nucleus. Further optimization of CO-IP protocol, MTS assay, and CFA will be needed to characterize the SGEF/BRCA1 interaction and its role in cell survival.

ContributorsNabaty, Natalie Lana (Author) / Douglas, Lake (Thesis director) / Loftus, Joseph C. (Committee member) / School of Life Sciences (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description

An autoimmune disease is a health condition in which the immune system attacks your body due to the inability to differentiate between foreign cells and your own cells. There are over 80 autoimmune diseases that affect the human body, but we specifically want to focus on three diseases: Crohn’s Disease,

An autoimmune disease is a health condition in which the immune system attacks your body due to the inability to differentiate between foreign cells and your own cells. There are over 80 autoimmune diseases that affect the human body, but we specifically want to focus on three diseases: Crohn’s Disease, Rheumatoid Arthritis (RA), and Multiple Sclerosis (MS). These three autoimmune diseases affect young adults the most and impact three integral parts of the body – the GI tract, musculoskeletal system, and the central nervous system, respectively. We would like to further research how nutrition and diet can affect individuals with these autoimmune disorders. We want to better understand the role diet plays in maintaining both the physical and mental health condition of an individual with an autoimmune disease. Stress has been hypothesized to be a factor in the triggering of an autoimmune disease and we have noticed how stress can be a major factor on a person’s daily food choices and intake. We are also interested in how we can incorporate this knowledge of the benefits of nutrition into routine patient care. Within the healthcare setting, we have both witnessed first-hand how patients were able to improve as well as maintain their physical health condition via their diet. For example, through an appropriate diet, patients were able to show improvements in their lab work and/or maintain and prevent health conditions such as autoimmune disorders. Therefore, we would like to better understand how diet can control and/or manage autoimmune disorders.

ContributorsCheng, Elizabeth (Author) / Palakodaty, Srikari (Co-author) / Don, Rachael (Thesis director) / Martinelli, Sarah (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / School of Life Sciences (Contributor)
Created2023-05
Description

Allostatic load in students, commonly referred to as student burnout, is extremely detrimental to emotional, mental, and physical health. Recent studies are finding an uptick in allostatic load in students, as academic pressures continue to rise. In order to meet the changing needs of students, universities should address the effects

Allostatic load in students, commonly referred to as student burnout, is extremely detrimental to emotional, mental, and physical health. Recent studies are finding an uptick in allostatic load in students, as academic pressures continue to rise. In order to meet the changing needs of students, universities should address the effects of overwhelming academic stress and student burnout. My thesis aimed to provide college campuses with the tools they need to do so, particularly through the implementation of Talking Circles. Talking Circles are structured discussions aimed to address specific issues, problems, or talking points. I had the opportunity to design, create, and facilitate Talking Circles with the American Holistic Nurses Association (AHNA) Chapter at Arizona State University. The focus of these circles were designed to have specific emphasis on reducing allostatic load in ASU’s student population. Thus, the Talking Circle prompts, following the principles of positive psychology, focused on emphasizing individual strengths in regards to handling stress. Through individual participant feedback, students felt “empowered, strengthened, and safe” after participating in the Talking Circles. In addition to facilitating these psychosocial support groups, I created a digital toolkit that allows for easier accessibility and distribution of Talking Circles. This allows for not only more students at ASU to feel ‘empowered and strengthened’ but for college students across the U.S. to have the tools, resources, and access to manage stress and reduce allostatic load.

ContributorsSouffront, Cora (Author) / Augusta, Dawn (Thesis director) / Reeves-Blurton, Zachary (Committee member) / Mun, Chung (Committee member) / Barrett, The Honors College (Contributor) / Edson College of Nursing and Health Innovation (Contributor) / Department of Psychology (Contributor)
Created2023-05