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Once perceived as an unimportant occurrence in living organisms, cell degeneration was reconfigured as an important biological phenomenon in development, aging, health, and diseases in the twentieth century. This dissertation tells a twentieth-century history of scientific investigations on cell degeneration, including cell death and aging. By describing four central developments in cell degeneration research with the four major chapters, I trace the emergence of the degenerating cell as a scientific object, describe the generations of a variety of concepts, interpretations and usages associated with cell death and aging, and analyze the transforming influences of the rising cell degeneration research. Particularly, the four chapters show how the changing scientific practices about cellular life in embryology, cell culture, aging research, and molecular biology of Caenorhabditis elegans shaped the interpretations about cell degeneration in the twentieth-century as life-shaping, limit-setting, complex, yet regulated. These events created and consolidated important concepts in life sciences such as programmed cell death, the Hayflick limit, apoptosis, and death genes. These cases also transformed the material and epistemic practices about the end of cellular life subsequently and led to the formations of new research communities. The four cases together show the ways cell degeneration became a shared subject between molecular cell biology, developmental biology, gerontology, oncology, and pathology of degenerative diseases. These practices and perspectives created a special kind of interconnectivity between different fields and led to a level of interdisciplinarity within cell degeneration research by the early 1990s.
ContributorsJiang, Lijing (Author) / Maienschein, Jane (Thesis advisor) / Laubichler, Manfred (Thesis advisor) / Hurlbut, James (Committee member) / Creath, Richard (Committee member) / White, Michael (Committee member) / Arizona State University (Publisher)
Created2013
Description
Researchers in the twentieth and twenty-first centuries identify the study of the intrinsic and external factors that influence human aging as senescence. A commonly held belief in the year 2015 is that at least some kinds of cells can replicate over long periods or even indefinitely, thereby meaning the cell does not undergo senescence (also known as replicative senescence) and is considered immortal. This study aims to provide information to answer the following question: While some scientists claim they can indefinitely culture a stem cell line in vitro, what are the consequences of those culturing practices? An analysis of a cluster of articles from the Embryo Project Encyclopedia provides information to suggest possible solutions to some potential problems in cell culturing, recognition of benefits for existing or historical culturing practices, and identification of gaps in scientific knowledge that warrant further research. Recent research suggests that hESCs, and immortalized cell lines in general, do not escape the effects of senescence. While there exists a constant change in the practices of cell culturing, a large portion of scientists still rely on practices established before modern senescence research: research that seems to suggest that cultured hESCs, among other immortal cell lines, are not truly immortal.
ContributorsBartlett, Zane (Author) / Maienschein, Jane (Thesis advisor) / Ellison, Karin (Committee member) / Hurlbut, James (Committee member) / Arizona State University (Publisher)
Created2015
Description
While there is extensive information available about organizations that receive donated organs for transplant, much less is known about those that accept tissue and whole bodies for medical education and research. Throughout the United States, nontransplant anatomical donation organizations exist within an ambiguous sector of the donation industry, unencumbered by federal regulations. Although these companies adhere to the Uniform Anatomical Gift Act, the lack of a single entity responsible for overseeing their operations has led to public skepticism and animosity among competing businesses. Legislation has the potential to legitimize the industry. For it to be successful, however, the intricacies of a complex market that deals directly with the movement of human remains and intangible issues of human integrity and morality, must be thoroughly understood.
ContributorsGlynn, Emily Sanders (Author) / Brian, Jennifer (Thesis director) / Fisher, Rebecca (Committee member) / Barrett, The Honors College (Contributor) / School of Nutrition and Health Promotion (Contributor) / Department of English (Contributor)
Created2015-05
Description
American Indian literature is replete with language that refers to broken or hollow promises the US government has made to American Indians, one of the most prominent being that the US government has not kept its promises regarding health services for American Indians/Alaska Natives (AI/AN). Some commenters refer to treaties between tribes and the US government as the origin of the promise for health services to AI/AN. Others point to the trust relationship between the sovereign nations of American Indian tribes and the US government, while still others assert that the Snyder Act of 1921 or the Indian Health Care Improvement Act (IHCIA) contained the promise for health care. While the US has provided some form of health care for AI/AN since the country was in its infancy, and continues to do so through the Indian Health Service, the promise of health services for AI/AN is not explicit.
Philosophers have articulated that a promise contains a moral obligation to fulfill it because of others’ expectations created by that promise. As the US government made its first promises in early treaties with AI/AN tribes and subsequently made promises in the years since, it is morally obligated to fulfill those promises, be they lying promises or not, because of resulting expectations. Yet, the US government has historically acted to restrict the rights of AI/AN—rights that include access to health services—through assimilation, separation, or termination policies. Further, the policies of the US government have kept the AI/AN populations socioeconomically impoverished, dependent on the US government for basic needs, and susceptible to health-compromising conditions.
Using case studies, this dissertation looks not only at the policies and events that directly affected health services and health status, but also at how those policies and events contributed to health outcomes and the expectations of AI/AN. Given the history of the US government in fulfilling (or not fulfilling) its promises, this dissertation examines the expectations of AI/AN for their own future health outcomes under the policy of self-governance.
Philosophers have articulated that a promise contains a moral obligation to fulfill it because of others’ expectations created by that promise. As the US government made its first promises in early treaties with AI/AN tribes and subsequently made promises in the years since, it is morally obligated to fulfill those promises, be they lying promises or not, because of resulting expectations. Yet, the US government has historically acted to restrict the rights of AI/AN—rights that include access to health services—through assimilation, separation, or termination policies. Further, the policies of the US government have kept the AI/AN populations socioeconomically impoverished, dependent on the US government for basic needs, and susceptible to health-compromising conditions.
Using case studies, this dissertation looks not only at the policies and events that directly affected health services and health status, but also at how those policies and events contributed to health outcomes and the expectations of AI/AN. Given the history of the US government in fulfilling (or not fulfilling) its promises, this dissertation examines the expectations of AI/AN for their own future health outcomes under the policy of self-governance.
ContributorsDrago, Mary (Author) / Maienschein, Jane (Thesis advisor) / Ellison, Karin (Committee member) / Herkert, Joseph (Committee member) / Hurlbut, James (Committee member) / Robert, Jason (Committee member) / Trujillo, Michael (Committee member) / Arizona State University (Publisher)
Created2016
Description
In 2004, the South Korean geneticist Woo-Suk Hwang published what was widely regarded as the most important research result in biotechnology of the year. In the prestigious American journal Science, he claimed that he had succeeded in cloning a human blastocyst, an embryo in its early stages (Hwang et al. 2004). A year later, in a second Science article, he made the earth-shattering announcement that he had derived eleven embryonic stem cell lines using his cloning technique (Hwang et al. 2005). The international scientific community was stunned. American scientists publicly fretted that President George W. Bush‘s 2001 executive order limiting federal funding for stem-cell research in the United States had put American bioscience behind the Koreans‘ (Paarlberg 2005). These breakthroughs offered potential solutions to immune system rejection of transplanted organs and possible cures for diseases such as rheumatoid arthritis, Parkinson‘s, Down‘s syndrome, and paralysis (Svenaeus 2007). However, within a year, Hwang was exposed as a fraud who had faked his results and pressured his female colleagues to donate eggs without informed consent. Despite protests against his methods from Korean religious and nongovernmental organizations, Hwang had used his prestige to ignore his ethical obligations. The Korean government, too, was slow to investigate Hwang and to subject his work to appropriate regulation.
ContributorsClay, Anne (Author) / Hurlbut, James (Thesis director) / Maienschein, Jane (Committee member) / Marchant, Gary (Committee member) / Barrett, The Honors College (Contributor) / School of Life Sciences (Contributor)
Created2012-12
Description
Writing speculative fiction is a valuable method for exploring the potential societal transformations elicited by advances in science and technology. The aim of this project is to use speculative fiction to explore the potential consequences of precision medicine for individuals’ daily lives. Precision medicine is a vision of the future in which medicine is about predicting, and ultimately preventing disease before symptoms arise. The idea is that identification of all the factors that influence health and contribute to disease development will translate to better and less expensive healthcare and empower individuals to take responsibility for maintaining their own health and wellness. That future, as envisioned by the leaders of the Human Genome Project, the Institute for Systems Biology, and the Obama administration’s Precision Medicine Initiative, is assumed to be a shared future, one that everyone desires and that is self-evidently “better” than the present. The aim of writing speculative fiction about a “precision medicine” future is to challenge that assumption, to make clear the values underpinning that vision of precision medicine, and to leave open the question of what other possible futures could be imagined instead.
ContributorsVenkatraman, Richa (Author) / Brian, Jennifer (Thesis advisor) / Maienschein, Jane (Thesis advisor) / Hurlbut, James (Committee member) / Arizona State University (Publisher)
Created2022
Description
This dissertation is an historical analysis of the science of human origins, paleoanthropology, examining the intersection of science and culture around fossil human ancestors (hominins) over the last century and a half. Focusing on fossils as scientific objects, this work examines three controversial fossils from the science’s history asking, how do fossils formulate, challenge, and reconfigure notions of what it means to be human? The introduction reviews the historiography of paleoanthropology and the gaps that exist in the literature. Chapter two examines the first case study, the type specimen of Homo neanderthalensis, known as the Feldhofer Neanderthal, providing a biography of the object from its discovery in Germany in 1856 until its species designation in 1864. Chapter three briefly links the Neanderthal’s story in time and space to the next fossil’s story. Chapter four picks up the story of paleoanthropology in 1924 in South Africa, with the discovery and initial analysis of a specimen nicknamed the Taungs Baby, which was labeled a new hominin species, Australopithecus africanus. Chapter five is another brief chapter connecting the Taungs Baby story in time and space to the final specimen examined in this work at the end of the century. Chapter six examines the final case study, a specimen discovered in 2003 in Indonesia, designated a new species named Homo floresiensis and nicknamed the Hobbit. Through comparing contrasting, and connecting the stories of these three specimens, three major conclusions emerge about the field. First, the fossils themselves play an important role in knowledge production about the hominin past. Second, scientific practice shaped both interpretations of fossils and larger questions of what it means to be human. Third, the scientific practice is itself shaped by local culture, which continually interacts with attempts to establish a global perspective about the human past. The perspective gleaned through the eyes of these three fossils therefore reveals the way shifting, rather than eternally true, claims are embedded in culture and intertwined with the perspectives of the humans conducting the science.
ContributorsMadison, Paige (Author) / Maienschein, Jane (Thesis advisor) / Kimbel, William (Committee member) / Creath, Richard (Committee member) / Hurlbut, James (Committee member) / Laubichler, Mandred (Committee member) / Arizona State University (Publisher)
Created2020