Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Bacteriophage (3)
- Enterobacteriaceae (2)
- Phage (2)
- Phage therapy (2)
- 14C analysis (1)
-
- ATXN2 (1)
- Antibiotics (1)
- Asthma (1)
- Autoimmunity (1)
- BYU Egypt Project (1)
- Bacillus anthracis (1)
- Bacteremia (1)
- Bacterial and eukaryotic rDNA communities (1)
- Blood (1)
- Bromus tectorum (1)
- Burial shafts (1)
- Carbapenem-resistant Enterobacteriaceae (1)
- Cbf1 (1)
- Cheatgrass (1)
- Cluster (1)
- Der f 1 (1)
- Der p 1 (1)
- Dietary history (1)
- Direct Coupling Analysis (1)
- Disease (1)
- E. amylovora (1)
- Endotoxin (1)
- Fag el-Gamus necropolis (1)
- Fire blight (1)
- Gene duplication (1)
- Publication
- Publication Type
Articles 1 - 12 of 12
Full-Text Articles in Life Sciences
Functional Implications Of Nlrp1 Variants For Autoimmune Disease, Laura J. Westhoff
Functional Implications Of Nlrp1 Variants For Autoimmune Disease, Laura J. Westhoff
Undergraduate Honors Theses
NLRP1 is a protein-coding human gene that plays a crucial role in the NLRP1 inflammasome. Variants to the NLRP1 gene have been associated with autoimmune and autoinflammatory diseases. We examined the effects of polymorphisms at two SNPs on cytokine levels and NLRP1 gene expression in 50 human volunteers without diagnosed autoimmune disease. NLRP1 was genotyped at SNPs rs2670660 and rs12150220 and individuals who were homozygous at one or more SNP were selected for further analysis. Serum IL-18 and IL-1β levels were quantified using ELISA. NLRP1 gene expression was measured using real-time PCR. A strong linkage was found between genotypes of …
Improving And Modeling Bacteria Recovery In Hollow Disk System, Clifton Anderson
Improving And Modeling Bacteria Recovery In Hollow Disk System, Clifton Anderson
Theses and Dissertations
Identifying antibiotic resistance in blood infections requires separating bacteria from whole blood. A hollow spinning disk rapidly removes suspended red blood cells by leveraging hydrodynamic differences between bacteria and whole blood components in a centrifugal field. Once the red cells are removed, the supernatant plasma which contains bacteria is collected for downstream antibiotic testing. This work improves upon previous work by modifying the disk design to maximize fractional plasma recovery and minimize fractional red cell recovery. V-shaped channels induce plasma flow and increase fractional plasma recovery. Additionally, diluting a blood sample spiked with bacteria prior to spinning it increased the …
Bioaerosols Associated With Evaporative Cooler Use In Low-Income Homes In Semi-Arid Climates, Ashlin Elaine Cowger
Bioaerosols Associated With Evaporative Cooler Use In Low-Income Homes In Semi-Arid Climates, Ashlin Elaine Cowger
Theses and Dissertations
Asthma is the leading chronic illness in children in the United States. Since children in the U.S. spend a majority of their time indoors there is an increased need to understand key sources of daily asthma triggers in the home. Bacterial endotoxin, dust mite allergens and β-D-glucan have been shown to be potent inducers of asthma attacks, and high levels of these allergens in homes can trigger attacks in those with asthma. We aim to better understand the risks to those with asthma that might be associated with evaporative cooler (EC) use in low-income homes. ECs are often promoted because …
Bottom-Up Controls (Micronutrients And N And P Species) Better Predict Cyanobacterial Abundances In Harmful Algal Blooms Than Top-Down Controls (Grazers), Scott Andrew Collins
Bottom-Up Controls (Micronutrients And N And P Species) Better Predict Cyanobacterial Abundances In Harmful Algal Blooms Than Top-Down Controls (Grazers), Scott Andrew Collins
Theses and Dissertations
The initiation, bloom, and bust of harmful Cyanobacteria and algae blooms (HAB) in lakes are controlled by top-down and bottom-up ecological controls. Excess phosphorous and nitrogen inputs from anthropogenic sources are primary to blame, but eukaryotic grazers may also promote or curb Cyanobacteria dominance. We tracked shifts in bacterial composition, lake chemistry, and eukaryotic grazing community weekly or bi-weekly through spring and summer and modeled the causes of specific Cyanobacterial species blooms and busts across three lakes in Utah, USA, with differing lake trophic states. Regardless of trophic status, all three lakes experienced blooms of varying composition and duration. Aphanizomenon …
Heterotrophic Protists As Useful Models For Studying Microbial Food Webs In A Model Soil Ecosystem And The Universality Of Complex Unicellular Life, Andrew Robert Thompson
Heterotrophic Protists As Useful Models For Studying Microbial Food Webs In A Model Soil Ecosystem And The Universality Of Complex Unicellular Life, Andrew Robert Thompson
Theses and Dissertations
Heterotrophic protists, consisting largely of the Cercozoa, Amoebozoa, Ciliophora, Discoba and some Stramenopiles, are a poorly characterized component of life on Earth. They play an important ecological role in soil communities and provide key insights into the nature of one of life’s most enigmatic evolutionary transitions: the development of the complex unicell. Soil ecosystems are crucial to the functioning of global biogeochemical cycles (e.g. carbon and nitrogen) but are at risk of drastic change from anthropogenic climate change. Heterotrophic protists are the primary regulators of bacterial diversity in soils and as such play integral roles in biogeochemical cycling, nutrient mobilization, …
Isolation, Genetic Characterization And Clinical Application Of Bacteriophages Of Pathogenic Bacterial Species, Trever Leon Thurgood
Isolation, Genetic Characterization And Clinical Application Of Bacteriophages Of Pathogenic Bacterial Species, Trever Leon Thurgood
Theses and Dissertations
Bacteriophages (phages) are the smallest biological entity on the planet. They provide vast amounts of valuable knowledge to biologists. Phage genomes are relatively simple compared to the organisms they infect (prokaryotes) and yet continually point to the complexity surrounding molecular- and microbiological mechanisms of life. By studying phages we can learn of the systems of gene expression, protein interaction and DNA organization. Phages are useful not only from an academic perspective, but may also have useful clinical applications. In the face of the rise of antibiotic-resistant bacterial “super pathogens”, scientists and researchers turn to phages as alternative treatments to these …
Isolation, Characterization, And Genomic Comparison Of Bacteriophages Of Enterobacteriales Order, Ruchira Sharma
Isolation, Characterization, And Genomic Comparison Of Bacteriophages Of Enterobacteriales Order, Ruchira Sharma
Theses and Dissertations
According to CDC, every year at least 2 million people are affected and 23,000 dies as a result of antibiotic resistance in U.S. It is considered one of the biggest threats to global health. More and more bacterial infections are becoming harder to treat. One such infection is fire blight, one of the most destructive disease of apple and pear trees. It is caused by bacteria Erwinia amylovora and its outbreaks have been known to destroy entire orchards in a single season. The conventional method of treatments includes use of antibiotics like streptomycin and oxytetracycline but the incidences like presence …
Geological And Geochemical Controls On Non-Tuberculous Mycobacterium Transmission: Examples From Hawaii, Schuyler Thomas Robinson
Geological And Geochemical Controls On Non-Tuberculous Mycobacterium Transmission: Examples From Hawaii, Schuyler Thomas Robinson
Theses and Dissertations
The opportunistic environmental microbes, non-tuberculous Mycobacterium (NTM), pose an increasing risk of disease and death in both immunodeficient and immunocompetent individuals in the USA and across the world. NTM lung disease is particularly prevalent in Hawaii, although the modes of NTM acquisition and transport in Hawaii are not fully understood. This study evaluated 149 soil and 50 water samples across the Hawaiian Islands to determine geochemical factors controlling NTM. Non-metric multidimensional scaling (NMDS) and principal component analyses (PCA) of modern soils show variables such as Total Organic Carbon (TOC), pH, P, mafic silicate minerals, and Pb seem to control NTM …
You Are What You Eat At Any Age: Carbon And Nitrogen Analysis Of Mummies From An Ancient Egyptian Necropolis, Stephen Funk, R. Paul Evans
You Are What You Eat At Any Age: Carbon And Nitrogen Analysis Of Mummies From An Ancient Egyptian Necropolis, Stephen Funk, R. Paul Evans
Library/Life Sciences Undergraduate Poster Competition 2019
The BYU Egypt Project at Fag el-Gamus necropolis and adjacent Seila Pyramid has studied over 700 mummies excavated over the past 30 years. The necropolis includes an open area with densely located vertical burial shafts and a hill with horizontal burial shafts. The chronological and dietary history of the mummies was assessed using stable isotopy and 14C analysis of accessible biological samples.
Evaluating Fungal Pathogen Inoculum Loads In Field Seed Banks, Taryn Lori Williamson
Evaluating Fungal Pathogen Inoculum Loads In Field Seed Banks, Taryn Lori Williamson
Theses and Dissertations
Quantification of soilborne pathogen inoculum loads is important in both agricultural and wildland settings. Quantitative Polymerase Chain Reaction (qPCR) methods using SYBR Green chemistry have been shown to be useful for quantifying fungal inoculum loads in environmental samples. The purpose of this study was to develop a method to quantify fungal pathogen inoculum loads in soil seed banks using a qPCR method with SYBR Green chemistry. The invasive annual grass Bromus tectorum was chosen for this seed bank study. There were three objectives: 1) to design target-specific primers for three fungal pathogens known to be important in Bromus tectorum seed …
Further Understanding Of Bacteriophages That Infect The Bacterial Family Enterobacteriaceae, Paul Flake
Further Understanding Of Bacteriophages That Infect The Bacterial Family Enterobacteriaceae, Paul Flake
Undergraduate Honors Theses
Despite the eclectic nature of bacteriophage genomes, nucleotide comparison is an effective method for grouping phages into cluster and subcluster classifications. This process is facilitated by making preliminary cluster assignations based on the identity of the major capsid protein. As more phages continue to be sequenced and integrated into cluster/subcluster groupings, adjustments may need to be made to the genomic similarity percentages that have previously defined cluster/subcluster classifications. Implementing proteomic comparison in addition to nucleotide homology may provide added clarity to this process. Protein conservation and diversity among lytic phages that infect the bacterial family Enterobacteriaceae is discussed and the …
Pas Kinase And Tor, Controllers Of Cell Growth And Proliferation, Brooke Jasmyn Cozzens
Pas Kinase And Tor, Controllers Of Cell Growth And Proliferation, Brooke Jasmyn Cozzens
Theses and Dissertations
Nutrient sensing kinases lie at the heart of cellular health and homeostasis, allowing cells to quickly adapt to changing environments. Target of Rapamycin (TOR) and PAS kinase (PASK, or PASKIN) are two such nutrient kinases, conserved from yeast to man. In yeast, these kinases each have paralogs. The two TOR paralogs in yeast mimic the mammalian TORC1 and TORC2 complexes, except both Tor1 and Tor2 may contribute to TORC1 or TORC2 function. The two PAS kinase paralogs are paired with the TOR paralogs, meaning that both Psk1 and Psk2 regulate TORC1, while Psk2 suppresses a temperature-sensitive allele of Tor2. Herein …