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Legacy Theses & Dissertations (2009 - 2024)

Theses/Dissertations

2021

Articles 31 - 34 of 34

Full-Text Articles in Life Sciences

The Determination Of Lead In Blood By Electrothermal Atomization Atomic Absorption Spectrometry : Method Improvements And Clinical Fitness For Purpose For Detecting Elevated Blood Lead Levels, Emily Jean Pacer Jan 2021

The Determination Of Lead In Blood By Electrothermal Atomization Atomic Absorption Spectrometry : Method Improvements And Clinical Fitness For Purpose For Detecting Elevated Blood Lead Levels, Emily Jean Pacer

Legacy Theses & Dissertations (2009 - 2024)

Lead (Pb) is ubiquitous in the environment and exposure can have adverse health effects even at low concentrations, particularly in young children. Blood lead levels (BLLs) are the best indicator of recent Pb exposure. Based upon data from the NHANES, the Centers for Disease Control and Prevention’s (CDC) blood Pb (BPb) reference value, defined as the 97.5th percentile of children 1-5 years old, was lowered from 10 μg/dL to 5 μg/dL in 2012. According to more recent NHANES data, the 97.5th percentile has decreased to 3.5 μg/dL. If the CDC recommends a further lowering of the BPb reference value, many …


Passive Immunization Against Invasive Salmonella Enterica, Angelene Richards Jan 2021

Passive Immunization Against Invasive Salmonella Enterica, Angelene Richards

Legacy Theses & Dissertations (2009 - 2024)

The Gram-negative bacterium, Salmonella enterica is a prominent etiologic agent of both diarrheal disease and enteric fever that encompasses over 2500 serovars, including S. Typhimurium (STm) and S. Typhi (STy). S. enterica is transmitted through contaminated food and water and, following ingestion, invades the gastrointestinal (GI) mucosa. The bacterium uses flagellar-based motility to target microfold (M) cells overlying gut-associated lymphoid tissues known as Peyer’s patches in the small intestine. Entry into Peyer’s patch tissues is a pivotal step in the infection process, as the bacterium can then disseminate systemically in the host. Given the rise in antibiotic resistance amongst S. …


Identification Of Ires Activity In Cellular Mrnas And Viral Rna Using A Circular Rna Construct, Priyanka Sehta Jan 2021

Identification Of Ires Activity In Cellular Mrnas And Viral Rna Using A Circular Rna Construct, Priyanka Sehta

Legacy Theses & Dissertations (2009 - 2024)

Translation initiation is a critical step in the process of protein synthesis. The canonical way of translation initiation involves ribosomes being recruited to the 7-methyl guanosine cap present at the 5’end of the untranslated region (5’ UTR) of the RNAs. However, viral RNAs and some cellular mRNAs lack this 5’ cap structure and thus deploy an alternate non-canonical translation initiation mechanism. In non-canonical translation initiation, ribosome recruitment is facilitated by the RNA secondary structures called Internal Ribosome Entry Site (IRES) present most often in the 5’ UTR. To measure IRES-mediated translation, the dual luciferase assay has been the gold standard. …


Study Of Primary Cilium Structure And Intraflagellar Transport, Shufeng Sun Jan 2021

Study Of Primary Cilium Structure And Intraflagellar Transport, Shufeng Sun

Legacy Theses & Dissertations (2009 - 2024)

Primary cilia are hair-like protrusions that stem from the basal bodies in the cytoplasm and extend into the extracellular space to sense signals. Intraflagellar transport (IFT) functions to transport cargo molecules into and out of the ciliary compartment to assemble, maintain, and disassemble the cilia. Accurate knowledge of the three-dimensional (3D) structure of primary cilia and precise details of the IFT profile is the foundation for understanding the sensory functions of primary cilia. This work covers three aspects of primary cilia. Firstly, we obtained and analyzed the overall 3D architecture of the complete primary cilia axoneme region using serial section …