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Immunology and Infectious Disease Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Immunology and Infectious Disease
Allergy And Anaphylaxis From The Prehospital Perspective, Anthony E. Conrardy
Allergy And Anaphylaxis From The Prehospital Perspective, Anthony E. Conrardy
Dissertations and Theses
Anaphylaxis is considered a severe, potentially fatal, systemic allergic reaction that occurs suddenly after contact with an allergy causing substance. It is estimated that up to 5% of the population has experienced anaphylaxis, with 1% of hospitalizations and 0.1% of emergency department patients having fatal outcomes. We characterized the population of patients encountered by the EMS agency (786 patients) that had a provider impression of “allergic reaction” and then utilized logistic regression models to estimate associations with the administration of epinephrine in the prehospital setting. Additionally, we used incident location data for all patient encounters of the EMS agency …
Lps, A Tlr-4 Agonist And Viper A Tlr-4 Inhibitor Upregulate Phagocytosis Of Zymosan In Bv2 Cells, Sherouk Alzeory
Lps, A Tlr-4 Agonist And Viper A Tlr-4 Inhibitor Upregulate Phagocytosis Of Zymosan In Bv2 Cells, Sherouk Alzeory
Dissertations and Theses
Microglia cells are the first line of innate immunity defense in the central nervous system (CNS). They play a critical role in maintaining CNS homeostasis by having an active but yet balanced phagocytic activity. However, in various CNS related diseases, microglia cells have been shown to malfunction. In Alzheimer's Disease (AD), hyperactive microglia with impaired phagocytic activity is the main hallmark of this disease, along with the accumulation of amyloid-beta aggregates. Additionally, emerging new studies have suggested a fungal infection etiology to AD, specifically in relation to Candida albicans (C.albicans). Thus, understanding the mechanism of fungal clearance in the …
Bone Marrow Derived Progenitor Cells And Their Contributions To The Thymic Stroma, Mohammed Hoque
Bone Marrow Derived Progenitor Cells And Their Contributions To The Thymic Stroma, Mohammed Hoque
Dissertations and Theses
The thymus serves as the primary lymphoid organ responsible for the development and selection of a self-tolerant T cell repertoire. In paradox to its critical functions for the adaptive immune response, the thymus undergoes a profound age associated decline beginning in early adult life resulting in significant decline in T-cell function.Thymic epithelial cells (TECs) are the most critical component of the thymic microenvironment and undergo rapid turn-over, so understanding the cellular mechanisms responsible for the maintenance of TEC number and organization will be critical in counteracting age associated involution, particularly in cancer patients, due to enhanced degeneration in response to …
Development And Maintenance Of Thymic Epithelial Microenvironment, Varan J. Singh
Development And Maintenance Of Thymic Epithelial Microenvironment, Varan J. Singh
Dissertations and Theses
Thymus is a primary lymphoid organ responsible for proper development and selection Of T-‐cells. The thymic microenvironment, however, undergoes age related involution, Resulting in a reduction of the repertoire of T-‐cells that are produced, and a decreased Capacity to respond to new antigen. Even though significant thymic epithelial turnover occurs, it is unclear if postnatal thymic progenitors/stem cell are responsible for the maintenance of the TEC microenvironment. Here we use the K5rtTA:TetO-‐H2BGFP transgenic model to identify a slow cycling potential stem cells/progenitor population in the postnatal thymus. These cells were isolated, expanded in culture, and successfully differentiated into adipocytes, chondrocytes …
Structure-Function Analysis Of Zapc, An Ftsz-Ring Stabilizer, In Escherichia Coli Cytokinesis, Lukasz Tchorzewski
Structure-Function Analysis Of Zapc, An Ftsz-Ring Stabilizer, In Escherichia Coli Cytokinesis, Lukasz Tchorzewski
Dissertations and Theses
In Escherichia coli, cell division is defined by the polymerization and constriction of a cytokinetic ring (Z ring) formed by FtsZ, a tubulin-like GTPase, at midcell. Division also involves the formation of a multi-protein complex at midcell known as the divisome. Several divisome proteins promote the assembly/disassembly processes of FtsZ, thereby exercising spatiotemporal control over division. Among FtsZ regulatory proteins are the FtsZ ringassociated proteins (Zap), which either directly or indirectly stabilize the Z-ring by increasing lateral interactions amongst FtsZ protofilaments in the Z-ring. ZapA-D are recruited during early cytokinesis and have overlapping functions in stabilizing FtsZ at midcell, but …