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Articles 2191 - 2202 of 2202
Full-Text Articles in Medicine and Health Sciences
The Development Of An In Vitro Surrogate Assay For Screening Protective Antibodies Against Pneumococcal Surface Protein A (Pspa), Kristopher Ruben Genschmer
The Development Of An In Vitro Surrogate Assay For Screening Protective Antibodies Against Pneumococcal Surface Protein A (Pspa), Kristopher Ruben Genschmer
All ETDs from UAB
PCV13 is the current pneumococcal protein conjugated vaccine made up of the 13 most clinically relevant capsular polysaccharides. While protective, it is limited to a small portion of the overall serotypes of Streptococcus pneumoniae. The possibility of "serotype replacement" by serotypes not covered by the vaccine and the high cost of producing this conjugated polysaccharide vaccine stress the need for a protein based vaccine, one that is more broad in its protection. Pneumococcal surface protein A (PspA) has been shown to be both immunogenic and protective in mice and is a promising protein vaccine candidate. However, there are no current …
The Contribution Of Intereim Executives To The Healthcare Industry, Ray Snead
The Contribution Of Intereim Executives To The Healthcare Industry, Ray Snead
All ETDs from UAB
This is the first research-based study of interim executive services in the US healthcare industry. It opens a new area of inquiry for academic investigation of the role of interim executive services in the healthcare industry. The study focused on Chief Executive Officer and Board of Directors leadership in acute care hospitals of all sizes across the United States. The research survey resulted in 443 responses to over seventy-five questions addressing interim executive services from the perspective of healthcare decision makers. Ninety five percent of the respondents were CEOs and the remainder were board members, primarily chairpersons. The research is …
The Role Of Gadd45b In Hippocampus-Dependent Cognition, Synaptic Plasticity And Activity-Associated Transcriptional Dynamics, Faraz Sultan
The Role Of Gadd45b In Hippocampus-Dependent Cognition, Synaptic Plasticity And Activity-Associated Transcriptional Dynamics, Faraz Sultan
All ETDs from UAB
An expanding body of literature argues for a pivotal role of molecular epigenetic mechanisms in memory. Defined as mechanisms that regulate gene expression in the absence of DNA sequence modifications, these regulate various stages of memory-associated transcription. These phenomena are present at diverse anatomical subregions of the central nervous system (CNS) and regulate corresponding behaviors. Epigenetic mechanisms comprise a unique category of behavioral and physiological modulators because of their potential to modify the cellular phenotype in a stable manner. Hence, epigenetics offers a novel potential solution to a central paradox in memory retention: the finding that most putative molecular substrates …
Influence Of Implant Angulation On The Fracture Resistance Of Zirconia Abutments, Shreedevi Thulasidas
Influence Of Implant Angulation On The Fracture Resistance Of Zirconia Abutments, Shreedevi Thulasidas
All ETDs from UAB
Zirconia-based implant abutments are widely used in prosthetic dentistry. Custom made abutments are utilized to correct for non-ideal implant positions and can successfully accommodate the morphologic requirements of the overlying crown. It was hypothesized that there will be difference in fracture strength and fracture mode of artificially aged zirconia implant abutments supported by implants at varying angulation, when load is applied to failure on overlying zirconia crowns. The implant-abutment-crown assemblies were subjected to steam autoclaving to induce some degree of phase transformation from tetragonal to weaker monoclinic form and to thermo-cycling to artificially age the samples. The effects of loading …
Neutropenia And Progenitor Cell Mobilization In Ap3-B1 Mutant Pearl Mice, Matthew Vallejo
Neutropenia And Progenitor Cell Mobilization In Ap3-B1 Mutant Pearl Mice, Matthew Vallejo
All ETDs from UAB
Mutations in the AP3-ß1 gene are known to cause Hermansky-Pudlak syndrome type 2 (HPS2) in humans and canine cyclic hematopoiesis (CH) in gray collie dogs. HPS2 patients have severe congenital neutropenia (SCN), and dogs have cyclic neutropenia (CN). The mechanism behind neutropenia is uncertain. Pearl mice have an AP3-ß1 mutation, but whether they actually have neutropenia has not yet been evaluated. This dissertation presents a discussion of the evaluation of neutropenia in pearl mice, hematopoietic progenitor cell mobilization defect in pearl mice and finally an evaluation of methods of dog-to-mouse xenotransplantation to establish a xenotransplant model of the dog hematopoietic …
Characterizing The Roles Of Il-11 And Cd68 In Breast Cancer Bone Metastasis, Erin Mills Mccoy
Characterizing The Roles Of Il-11 And Cd68 In Breast Cancer Bone Metastasis, Erin Mills Mccoy
All ETDs from UAB
The molecular mechanisms regulating the preferential metastasis of breast cancer to bone have not been fully elucidated, but it is hypothesized that local conditions in the bone create an environment conducive to colonization by breast cancer cells and that the breast cancer cells interact directly with cells in the bone. In this dissertation, two goals were pursued: (1) to explore breast cancer secreted interleukin (IL)-11's role on osteoclast function and (2) investigate the expression and potential role of CD68 in breast cancer adhesion to bone. Higher rates of bone metastasis occur in human breast cancer tumors expressing IL-11, a cytokine …
Association Between Cruciferous Vegetable Intake And Risk Of Colorectal Cancer Among Men In Shanghai, China, Emily Vogtmann
Association Between Cruciferous Vegetable Intake And Risk Of Colorectal Cancer Among Men In Shanghai, China, Emily Vogtmann
All ETDs from UAB
Colorectal cancer (CRC) is a major global health concern and the intake of certain foods, such as cruciferous vegetables, has been studied for their potential protective effects against cancer development. The observed association between cruciferous vegetable consumption and CRC has been inconsistent, possibly related to glutathione S-transferase (GST) gene polymorphisms. Therefore, we aimed to (1) evaluate the association between fruits and vegetables, including cruciferous vegetables, on the risk of CRC; (2) determine factors associated with urinary isothiocyanate (ITC), a biomarker of cruciferous vegetable intake; and (3) evaluate the association between cruciferous vegetable consumption and CRC and to estimate the potential …
The Role Of Pneumococcal Choline-Binding Protein A (Pcpa) In The Mechanism Of Virulence And Protective Immunity, Melissa Marie Walker
The Role Of Pneumococcal Choline-Binding Protein A (Pcpa) In The Mechanism Of Virulence And Protective Immunity, Melissa Marie Walker
All ETDs from UAB
pcpA is under control of the Mn 2-dependent repressor PsaR. In the high manganese environment of mucosal sites pcpA gene expression is repressed and at the low manganese environment of the lung and blood derepression of pcpA gene expressionis observed. Previous data has shown that immunization of mice with rPcpA elicits protection against pneumonia and sepsis but had no effect on nasal colonization. We and others have shown that pcpA expression significantly enhances adherence of pneumococci to lung epithelial cell lines and although it is a virulence factor for pneumonia in mice there is no biologically relevant role for PcpA …
Glioma-Vasculature Interactions, Stacey Watkins
Glioma-Vasculature Interactions, Stacey Watkins
All ETDs from UAB
Malignant gliomas are highly invasive brain tumors, which lack effective treatment options. To date, the standard therapy includes surgical debulking followed by chemotherapy and radiation. Despite efforts to eradicate the disease, the median patient survival time is only 14 months. In an attempt to discover novel therapies, research has focused on understanding the heterogeneous biological mechanisms employed by these cells. Uniquely, they do not metastasize through the vasculature or lymphatics like other solid cancers but alternatively, glioma cells utilize the abluminal surface of the vasculature to guide invasion and migration throughout the brain. The intimate association between glioma cells and …
Hur Regulation In Central Nervous System Disorders, Crystal G. Wheeler
Hur Regulation In Central Nervous System Disorders, Crystal G. Wheeler
All ETDs from UAB
In inflammatory diseases of the central nervous system (CNS), astrocytes play a major role in the systemic response to disease by either enhancing or limiting the inflammatory response through secretion of growth factors or cytokines. HuR RNA binding protein regulates many genes involved in inflammation. Inflammatory diseases such as brain tumors, Amylotrophic Lateral Sclerosis (ALS), and Multiple Sclerosis (MS), have been linked to HuR, by our laboratory and others. To determine whether astrocytic overexpression of HuR would regulate inflammation in diseases of the CNS, we designed a transgenic mouse in which the HuR gene is overexpressed. In the first study, …
Hard On Your Heart: A Qualitative Description Of Adolescent Prenatal Stress, Candace Clayton Knight
Hard On Your Heart: A Qualitative Description Of Adolescent Prenatal Stress, Candace Clayton Knight
All ETDs from UAB
Introduction: Pregnancy during adolescence is potentially stressful due to the concurrent tasks of navigating the typically tumultuous adolescent stage of development and the life altering experience of pregnancy (Kaye, 2008). There is a growing body of research linking prenatal stress to poor birth and developmental outcomes such as premature birth and low birth weight infants (K. Keenan, Sheffield, & Boeldt, 2007; Mulder et al., 2002), which makes describing the relatively unexplored perceptions and experience of stress during adolescent pregnancy important. The life course framework, with its emphasis on social, environmental, and family risk factors, has implications for reducing disparities among …
Virus-Induced Inflammation And Central Nervous System Development, Kate Kosmac
Virus-Induced Inflammation And Central Nervous System Development, Kate Kosmac
All ETDs from UAB
Congenital human cytomegalovirus (HCMV) infection is a complex cause of central nervous system (CNS) disease. Infection with HCMV during pregnancy results in virus transmission across the placenta and infection of the fetus. With a seroconversion rate in pregnant women between 1% and 4%, HCMV is the most frequently transmitted virus from mother to developing child. Each year between 2,000 and 4,000 infants will suffer from long-term neurologic deficits as a result of congenital infection. The well documented CNS sequelae resulting from congenital HCMV infection have described a wide range of damage without a specific set of pathologic markers for disease. …