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Articles 1 - 10 of 10
Full-Text Articles in Diseases
Impacts Of Environmental Stressors On Native South Dakota Amphibian Physiology And Survival, Danielle Jean Galvin
Impacts Of Environmental Stressors On Native South Dakota Amphibian Physiology And Survival, Danielle Jean Galvin
Dissertations and Theses
Amphibian populations around the world are declining, with some of the most likely drivers behind these declines including emerging infectious diseases and environmental contaminants. To address major gaps in the current literature, I sought to evaluate the effect of two major environmental stressors on various aspects of amphibian physiology: emerging infectious diseases and environmental contaminants. Emerging infectious diseases of amphibians include fungal, viral, and parasitic pathogens which have expanded in host range, either geographically or in competent host species. Environmental contaminants include chemicals which may be naturally occurring in the environment, or which may be introduced to the environment, often …
Human-Bat Interactions In A Disease Emergence Hotspot: Implications For Human Health And Bat Conservation, Reilly Tempest Jackson
Human-Bat Interactions In A Disease Emergence Hotspot: Implications For Human Health And Bat Conservation, Reilly Tempest Jackson
Graduate Theses and Dissertations
Bats are an ecologically important taxon that can host zoonotic pathogens. Globally, many bat species are synanthropic and live closely with humans, often roosting in man-made structures. The spatial overlap between humans and bats creates opportunities for human-bat contact, which can lead to human exposure to bat-borne pathogens and conflicts that cause bat mortality. Despite this risk, little is known about the drivers and characteristics of these human-bat interactions in buildings and work is needed to understand this aspect of the wildlife-urban interface. In Chapter I, I present a literature review that identifies the geographic and taxonomic trends in reported …
Muscle Defects Lead To Skeletal Deformities In A Zebrafish Model Of Distal Arthrogryposis, Emily A. Tomak
Muscle Defects Lead To Skeletal Deformities In A Zebrafish Model Of Distal Arthrogryposis, Emily A. Tomak
Electronic Theses and Dissertations
Distal Arthrogryposis Type 1 (DA1) involves mild muscle weakness and limb skeletal abnormalities thought to be caused by paralysis in utero. Why the limbs are particularly affected in DA1 and the degree of paralysis that leads to these skeletal deformities in utero remains unclear. Several muscle genes are known to cause DA1, including MYLPF (myosin light chain phosphorylatable), which encodes a myosin light chain protein that binds close to the force-generating head of myosin heavy chains. The zebrafish mylpfa-/- mutant displays a phenotype consistent with DA1, including impaired myosin activity, reduced muscle force overall, and complete fin paralysis. I …
Analyzing Pseudomonas Aeruginosa With Bacteriophage Tags Using Photoacoustic Flow Cytometry, Jennifer C. Schinke
Analyzing Pseudomonas Aeruginosa With Bacteriophage Tags Using Photoacoustic Flow Cytometry, Jennifer C. Schinke
Electronic Theses and Dissertations
The number of daily bacterial infections is climbing and the CDC explains that this is due to the antibiotic-resistant threat in the United States. Finding a faster way of bacterial identification is necessary as it currently takes 1-4 days for a medical lab to culture and identify bacteria. Photoacoustic flow cytometry (PAFC) can be used as an alternative method resulting in swift identification within an hour (Edgar, 2019). Pseudomonas aeruginosa, cell line PA01, will be coated in up to a few hundred red dyed phages making it detectible by the photoacoustic flow cytometry system. Bacteriophages (phages) are viruses that …
The Prevalence Of Diabetes In Juveniles, Tatyana Johnson
The Prevalence Of Diabetes In Juveniles, Tatyana Johnson
Graduate Student Dissertations, Theses, Capstones, and Portfolios
Diabetes mellitus, simply known as diabetes, is a metabolic disorder that impacts how the body makes use of glucose or blood sugar. Glucose is the primary supply of energy for the body’s cells, which is controlled by insulin, a pancreatic hormone. Diabetes results in high blood glucose levels (hyperglycemia), which are caused by either insufficient insulin production by the pancreas or ineffective insulin utilization by the body (Dean & McEntyre, 2004). Although there are several types of diabetes, the two main types are type 1 and type 2. Type 1, also known as juvenile diabetes, is an inflammatory condition in …
Impacts Of Dietary Restriction On A Drosophila Model Of Werner Syndrome, Eileen Sember
Impacts Of Dietary Restriction On A Drosophila Model Of Werner Syndrome, Eileen Sember
College of Arts & Sciences Senior Honors Theses
Werner syndrome (WS) is an autosomal recessive disorder that results in premature aging and occurs in 1 in 1,000,0000 to 1 in 10,000,000 people. In humans, WS is the result of mutations that render the WRN gene, that contains a helicase and an exonuclease domain, non-functional. Currently, there is no cure for WS in humans, making dietary and lifestyle interventions attractive for increasing the quality and longevity of lives. Diet restriction (DR) has been shown to extend the lifespan of several model organisms, including Drosophila melanogaster, making it a strong candidate for WS treatment. In this thesis, mutant flies …
Development Of A Computational Model To Investigate Pathways And The Effects Of Treatment In Fanconi Anemia, Sabrina Kellett
Development Of A Computational Model To Investigate Pathways And The Effects Of Treatment In Fanconi Anemia, Sabrina Kellett
Biological Sciences Undergraduate Honors Theses
Fanconi Anemia (FA) is a rare type of anemia that is not easily studied and can have very detrimental effects. This disease compromises the bone marrow, resulting in decreased hemopoiesis. Symptoms of FA also include abnormalities in the brain and spinal cord, incorrect formation of the kidneys, abnormal formation of the heart and lungs, and a dramatically increased risk of developing cancer. FA can be caused by various mutations in any of the 22 genes that encode for proteins involved in what is called the FA DNA repair pathway. In healthy individuals, this pathway specifically repairs interstrand cross-links (ICLs) recognized …
Various Synthetic Pathways Towards Efavirenz And Its Analogs; The Replacement Of The Side Chain, Elizabeth S. Bautista
Various Synthetic Pathways Towards Efavirenz And Its Analogs; The Replacement Of The Side Chain, Elizabeth S. Bautista
Selected Honors Theses
Cyclopropyl acetylene (CA) is a key intermediate in the synthesis of the human immunodeficiency virus (HIV) reverse transcriptase inhibitor, Efavirenz (EFV), an antiviral drug used to treat HIV. CA is an expensive raw material, difficult to obtain, and employed in the preparation of medications to combat acquired immunodeficiency syndrome (AIDS). It was found that the structure could be synthesized by the utilization of PCl5; however, this resulted in unwanted ring opening products. To address this issue, a one pot synthesis was developed using Ph3PCl2 as a mild chlorinating agent. In addition, a new analog has been proposed substituting the cyclopropyl …
Mir125a As Molecular Target Of Vitamin D Mediated Inhibition Of Cd4+ T Cell Differentiation Into Th17 Cells In Mrl/Lpr Lupus-Prone Mice, Miranda Hilt
Undergraduate Distinction Papers
The dynamic function of vitamin D in an array of immunomodulatory and anti-inflammatory mechanisms and its implication in the pathogenesis of autoimmune diseases has been the topic of much recent scholarship. Here I attempt to elucidate the molecular mechanism of vitamin D-mediated inhibition of the differentiation of CD4+ T cells into pro-inflammatory Th17 cells in MRL/lpr lupus prone mice by investigating how miR-125a expression is affected by dietary modulation of cholecalciferol (vitamin D3). MRL/MpJ and MRL/lpr mice were split into three experimental groups and fed specially formulated diets that varied in their concentrations of vitamin D. …
Examining The Effects Of Hyperglycemia On Retinal Regeneration, Emmanuella Ec Kyllians
Examining The Effects Of Hyperglycemia On Retinal Regeneration, Emmanuella Ec Kyllians
Theses and Dissertations--Biology
Diabetes is a disease that affects how the body processes glucose, leading to a cascade of other complications, one of which is diabetic retinopathy (DR). DR is a neurovascular disease that affects the retina and research has revealed the role of retinal neurodegeneration in its development. Animal models like zebrafish have emerged as important tools for studying the molecular and cellular mechanisms underlying DR. On the other hand, retinitis pigmentosa (RP) is a degenerative disease that involves the progressive degeneration of rods and cones, and hyperglycemia has been found to impair regeneration. Therefore, this study aims to examine the effects …