Index Catalog // ScholarsArchive@OSU

The genus Caenorhabditis : a system for testing evolutionary questions

Creator:: Raboin, Michael J.
Abstract:: Caenorhabditis elegans is arguably the best understood animal on the planet. Used for over 50 years to study development, we have a vast amount of knowledge of the inner workings of this worm. Our knowledge is incomplete, however, without placing this organism in its evolutionary and ecological context. In this...
Resource Type:: Dissertation
Full Text:: the degree of Doctor of Philosophy in Molecular and Cellular Biology presented on June 11, 2012

Roles for retinoid-X-receptors in solar UV-induced melanocyte homeostasis and melanomagenesis

Creator:: Coleman, Daniel J.
Abstract:: Melanoma is the deadliest form of skin cancer, arising from malignant transformation of pigment-producing melanocytes. The primary risk factor for melanoma and other skin cancers is DNA damage resulting from unprotected solar ultraviolet radiation (UVR). If incorrectly repaired, this damage can result in incorporation of mutations that cause aberrant cell...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Daniel J. Coleman for the degree of Doctor of Philosophy in

Chemical and biological approaches to identify vertebrate tissue regeneration pathways

Creator:: Sengupta, Sumitra
Abstract:: Numerous human conditions would be improved if therapies to encourage tissue regeneration were available. The goal of regenerative medicine is to encourage the body's intrinsic ability to repair and restore tissues lost by disease, injury or aging. While certain vertebrates have the inherent capacity to regenerate, mammals do not. To...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Sumitra Sengupta for the degree of Doctor in Philosophy in Toxicology presented on June 4

Activation, incorporation and modification of capreomycidine during viomycin biosynthesis

Creator:: Fei, Xiaobo
Abstract:: Molecular genetic and enzymological techniques have been employed to study antibiotic biosynthesis. The nonproteinogenic amino acid capreomycidine is the signature residue found in the tuberactinomycin family of antitubercular peptide antibiotics and an important element of the pharmacophore. Recombinant VioG, a single module peptide synthetase from the viomycin gene cluster cloned...
Resource Type:: Masters Thesis
Full Text:: Science in Molecular and Cellular Biology presented on December 14, 2006. Title: Activation

Suppression of Met signaling by the green tea polyphenol (-)-epigallocatechin-3-gallate (EGCG)

Creator:: Larsen, Christine A.
Abstract:: Met is a prognostic indicator of colorectal cancer patient survival. Therapies that target Met may therefore have beneficial outcomes in the clinic. Recently, EGCG was reported to suppress Met activation, although the mechanisms were not elucidated. HCT116 and HT29 human colon cancer cells were used to examine the relationships between...
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy dissertation of Christine A AN

Comparative Metagenomic Investigations Link the Functional Capacity of the Gut Microbiome to Vertebrate Physiology

Creator:: Armour, Courtney R.
Abstract:: Microscopic organisms inhabit virtually every niche on this planet, where they perform functions vital to all life on earth. Accordingly, humans host a complex community of microorganisms (i.e. the gut microbiome) that inhabit the gastrointestinal tract and modulate host physiology. Insight into the specific mechanisms through which gut microbes influence...
Resource Type:: Dissertation
Full Text:: Courtney Rae Armour for the degree of Doctor of Philosophy in Molecular and Cellular Biology presented on

From ALS to Antibodies: New Techniques in Mass Spectrometry-Based Proteoform Characterization

Creator:: Meeuwsen, Joseph C.
Abstract:: Altogether, this dissertation highlights the value of mass spectrometry-based analysis of intact proteins for solving problems related to understanding disease mechanisms and developing new therapeutics. Mutations to the antioxidant enzyme Cu, Zn Superoxide Dismutase (SOD1) perturb protein structure in vivo to cause 2-5% of amyotrophic lateral sclerosis (ALS) cases. Metal-deficient...
Resource Type:: Dissertation
Full Text:: Joseph C. Meeuwsen for the degree of Doctor of Philosophy in Molecular and Cellular Biology presented

Polyunsaturated fatty acid synthesis and type 2 diabetes complications

Creator:: Tripathy, Sasmita
Abstract:: Type 2 diabetes mellitus (T2DM) is a disease of multi-complications affecting more than 20 million US adults. Hyperglycemia is the classic clinical feature of diabetes, and uncontrolled hyperglycemia leads to deadly health complications. Thus, control of blood glucose represents a major goal for diabetics. Human and rodent studies revealed another...
Resource Type:: Dissertation
Full Text:: Sasmita Tripathy for the Doctor of Philosophy in Nutrition presented on July 11, 2012. Title

Effect of Agronomically Selenium Biofortified Hay on Oxidative Status, Metabolic and Inflammatory Biomarkers, and Immune Response of Transition Primiparous Dairy Cows and Se Transfer and Glutathione Peroxidase Activity in their Calves

Creator:: Jaaf, Shana S.
Abstract:: During the peripartum period (3 weeks before through 3 weeks after calving, a.k.a. “transition”), high producing dairy cows experience, among others, , oxidative stress and immune suppression that compromise performance and increased incidence of diseases.Among trace minerals, supplementation of Selenium (Se) can help to improve the transition by enhancing glutathione...
Resource Type:: Dissertation
Full Text:: Shana Salah Ali Jaaf for the degree of Doctor of Philosophy in Animal Sciences presented on December 3

Chemopreventative and chemotherapeutic properties of whole cruciferous vegetables and phytochemical components in acute T-cell lymphoblastic leukemia/lymphoma

Creator:: Shorey, Lyndsey E.
Abstract:: Acute lymphoblastic leukemia (ALL) encompasses a spectrum of lymphoid progenitors that have undergone malignant transformation and clonal proliferation at various stages of differentiation. Some cases of ALL have been documented to have prenatal origins and in particular neonatal exposure to various environmental pollutants is associated with increased disease risk, including...
Resource Type:: Dissertation
Full Text:: E. Shorey for the degree of Doctor of Philosophy in Toxicology presented on May 24, 2012. Title

Metabolic Effects in C57B/6J Mice Fed a High-Fat Diet Supplemented With Walnuts, Raspberries and Other Whole Foods

Creator:: Miranda-Garcia, Omar
Abstract:: Health benefits obtained from consumption of fruits and vegetables have the potential to improve the lifestyle of individuals. The walnut is a polyunsaturated fatty acid (PUFA)-rich whole food that is readily available in the U.S and has been shown to potentially reduce risk of Metabolic Syndrome. Furthermore, consumption of polyphenol...
Resource Type:: Masters Thesis

The role of copper and its chelation by tetrathiomolybdate in inflammation and atherosclerosis

Creator:: Wei, Hao
Abstract:: Endothelial activation with increased expression of cellular adhesion molecules, chemokines and pro-inflammatory cytokines critically contributes to vascular inflammation and the initiation and progression of atherosclerosis. By affecting redox-sensitive cell signaling pathways and transcription factors, redox-active transition metal ions, such as copper and iron, may play an important role in these...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Hao Wei for the Doctor of Philosophy in Genetics presented

Age-related loss of Nrf2, a novel mechanism for the potential attenuation of xenobiotic detoxification capacity

Creator:: Smith, Eric Jonathan
Abstract:: Nuclear Factor, Erythroid Derived 2, Like 2 (NFE2L2 or Nrf2) is the primary transcription factor in cellular defense against oxidative and xenobiotic stresses in higher eukaryotes. This basic leucine zipper transcription factor regulates over 200 antioxidant, detoxification, and lipid metabolizing genes by binding to the Antioxidant Response Element (ARE; a...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Eric Jonathan Smith for the degree of Doctor of Philosophy in Biochemistry and

Oxidative stress and muscle dysfunction following anterior cruciate ligament surgery

Creator:: Barker, Tyler
Abstract:: Despite the advances in surgery, physical therapy, and pharmaceutical agents, muscle dysfunction (i.e., atrophy and weakness) continues to impair recovery from an anterior cruciate ligament (ACL) injury and surgery. Ischemia-reperfusion injury during surgery and the subsequent limb disuse are two events experienced by patients having ACL surgery. Oxidative stress and...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Tyler Barker for the degree of Doctor of Philosophy in

DHA and Low-fat Low-cholesterol Diets as Treatment Strategies for Nonalcoholic Fatty Liver Disease

Creator:: Lytle, Kelli Anne
Abstract:: Nonalcoholic fatty liver disease (NAFLD) is characterized by the accumulation of excess neutral lipids within the parenchymal cells of the liver. The primary etiology is diet-induced and most often exists as a comorbidity with obesity, metabolic syndrome, and/or Type 2 Diabetes. The development of excess liver lipid can be self-limiting...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Kelli Anne Lytle for the degree of Doctor of Philosophy in

The Roles of Dietary Nitrate in Bone and the Gut in an Ovarian Hormone-deficient Rodent Model

Creator:: Conley, Melissa N.
Abstract:: Osteoporosis is a common metabolic bone disease, affecting a third of women and a fifth of men over age 65. In the US, annual health care costs associated with osteoporosis are estimated to be over $20 billion. Osteoporosis is associated with increased fracture risk, which has been demonstrated to predict...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Melissa N. Conley for the degree of Doctor of Philosophy in Nutrition

Reversing menstrual dysfunction (REMEDY) : the impact of menstrual status on musculoskeletal and hormonal health

Creator:: Kam, Lynn Cialdella
Abstract:: Menstrual dysfunction (MD), possibly due to lower energy availability (EA), is prevalent in active women and associated with unfavorable heath consequences. PURPOSE: To determine if EA improvements in endurance-trained women, using a daily Carbohydrate-Protein supplement (CHO-PRO), will restore menstrual function and improve musculoskeletal health. METHODS: Athletes with MD (ExMD; n=8;...
Resource Type:: Dissertation
Full Text:: Lynn Cialdella Kam for the degree of Doctor of Philosophy in Nutrition presented on March 15, 2011

Translational Studies of the High Molecular Weight Polycyclic Aromatic Hydrocarbon, Dibenzo[ def,p] Chrysene; Carcinogenesis and Metabolism

Creator:: Madeen, Erin
Abstract:: The objective of this work is to add to the body of translational data between high dose animal model research and the environmentally relevant human metabolism of the persistent pollutant dibenzo[def,p]chrysene (DBC). We furthered the knowledge of gene/exposure interactions by determining the carcinogenesis risk based on Cyp1b1 genotype following in...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Erin Madeen for the degree of Doctor of Philosophy in Toxicology

Critical windows of transplacental carcinogenesis : identifying efficacious approaches to chemoprevention with dietary phytochemicals

Creator:: Castro, David J.
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are a re-emerging class of environmental pollutants. The persistent nature of these highly toxic compounds along with their ubiquity in the environment creates an unavoidable route of exposure. The developing fetus and neonate are a particularly susceptible population due to their incomplete complement of xenobiotic metabolizing...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF David J. Castro for the degree of Doctor of Philosophy in Toxicology presented on February

In Utero Exposure to Arsenic and Mercury : Epigenome-Wide Associations and Newborn Health Outcomes

Creator:: Cardenas, Andres
Abstract:: Mercury and arsenic are known developmental toxicants and environmental exposures are ubiquitous worldwide from natural and anthropogenic sources. Prenatal exposure to both contaminants are independently associated with adverse perinatal health outcomes and latent disease risk that could be in part mediated by epigenetic reprogramming events. Fetal programming events involving DNA...
Resource Type:: Dissertation
Full Text:: Cardenas for the degree of Doctor of Philosophy in Public Health presented on September 10, 2015

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