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Articles 1 - 7 of 7
Full-Text Articles in Biology
The Effects Of Tubulin Post-Translational Modifications On The Flagellar Motility Of Trypanosoma Brucei, Katherine Wentworth
The Effects Of Tubulin Post-Translational Modifications On The Flagellar Motility Of Trypanosoma Brucei, Katherine Wentworth
All Theses
Trypanosoma brucei is a parasitic kinetoplastid that causes African trypanosomiasis and is transmitted to a mammalian host by the tsetse fly (Glossina spp.). T. brucei relies on its flagellar motility to carry out its morphological changes from the procyclic form (predominant in the fly vector) to the bloodstream form (infectious form in mammals) and navigate the bloodstream of its host. The driving structure within the flagellum is the axoneme, which is composed of microtubules and dynein motor proteins. The tubulin code hypothesis suggests that cells regulate microtubule motor protein activity through post-translational modifications (PTMs) of alpha and beta …
Venomic Characterization Of A Medically Relevant Rear-Fanged Snake, Conophis Lineatus (Dipsadidae: Xenodontinae), From Middle America, Tristan Schramer
Venomic Characterization Of A Medically Relevant Rear-Fanged Snake, Conophis Lineatus (Dipsadidae: Xenodontinae), From Middle America, Tristan Schramer
All Theses
Most traditional research on snake venoms has focused on front-fanged snake families (Viperidae, Elapidae, and Atractaspididae). However, venom is now generally accepted as being a much more broadly possessed trait within snakes, including species traditionally considered harmless. Unfortunately, due to historical inertia and methodological challenges, the toxin repertoires of non-front-fanged snake families (e.g., Colubridae, Dipsadidae, and Natricidae) have been heavily neglected despite the knowledge of numerous species capable of inflicting medically relevant envenomations. Integrating proteomic data for validation, we perform a de novo assembly and analysis of the Duvernoy’s venom gland transcriptome of the Central American Road Guarder (Dipsadidae: Xenodontinae: …
Evaluating The Impact Of Intersecting Research And Outreach Marine Science Programs On Elementary And Undergraduate Students, Randi J. Sims
Evaluating The Impact Of Intersecting Research And Outreach Marine Science Programs On Elementary And Undergraduate Students, Randi J. Sims
All Theses
Climate change is one of the most destructive forces our ocean is currently experiencing. Despite this, many students are not taught the basics of climate change science and ocean literacy in public school systems. My work seeks to combat these deficits through educational experiences in marine science for undergraduate and local elementary students through three studies incorporating marine-science based research and outreach. (1) Through undergraduate marine science research and outreach, students enrolled for long durations or with positive mentorship increased their conceptual understanding of marine science concepts, altered their attitudes towards climate change and science, and were more likely to …
Activation Of The Ppar Nuclear Receptors By Oxylipins And Their Potential Effects On Differentiation And Gene Expression In Myocytes, Jazmine Eccles
Activation Of The Ppar Nuclear Receptors By Oxylipins And Their Potential Effects On Differentiation And Gene Expression In Myocytes, Jazmine Eccles
All Theses
Obesity and non-alcoholic fatty liver diseases are a growing issue worldwide. Decreased expression of CYP2B6 is associated with obesity in humans and Cyp2b-null mice are diet-induced obese; however fatty liver disease is worse in humanized CYP2B6 transgenic mice than WT or Cyp2b-null mice despite lower obesity. CYP2B6 produces several oxylipins with preference for metabolism at the 9- and 13-positions with 9-HODE and 13-HODE (from linoleic acid; n-6), and 9-HOTrE and 13-HOTrE (from a-linolenic acid; n-3) preferentially produced. Oxylipins serve as signaling molecules for many processes, such as inflammatory pathways, lipid distribution, and lipid metabolism. Due to their diversity, oxylipins can …
The Presence And Distribution Of Crotoxin In The Rock Rattlesnake (Crotalus Lepidus), Jade Mellor
The Presence And Distribution Of Crotoxin In The Rock Rattlesnake (Crotalus Lepidus), Jade Mellor
All Theses
Crotoxin and its homologs (hereafter all referred to as CTx) is a highly lethal heterodimeric beta-neurotoxin found in pitvipers (Crotalinae) and is the main driver of neurotoxic venom phenotypes (Type II). In contrast, hemorrhagic venom phenotypes (Type I) are characterized by high snake venom metalloproteinase expression and low toxicity. Although many rattlesnake species have been classified as either Type I or Type II, population level variation in venom phenotype has also been documented in several species. The presence or absence of CTx is the main component of this variation in venom phenotype and has been most widely studied in large-bodied …
Characterization Of Larval Lepidopteran Gut Stem Cell Markers, Zilan Li
Characterization Of Larval Lepidopteran Gut Stem Cell Markers, Zilan Li
All Theses
The larval lepidopteran midgut is a complex tissue system that shows significant structure-function relationships related to its roles in digestive and absorptive processes. δ-endotoxins (Cry toxins) produced by the bacterium Bacillus thuringiensis disrupt the midgut epithelium of target insects has been used extensively to control pests. However, insects, including several lepidopteran species, evolve resistance to Cry toxins which causes a great threat to their continued utility. Understanding the physiology of the midgut, including that of the stem cells which are responsible for midgut growth, development, and regeneration, may improve the sustainability of midgut-targeted control like Cry toxins. Historically, lepidopteran midgut …
Effects Of 2,4-Di-Tert-Butylphenol On Osteogenic And Myogenic Differentiation Of Human Induced Pluripotent Stem Cells, Thanh-Bình Dương
Effects Of 2,4-Di-Tert-Butylphenol On Osteogenic And Myogenic Differentiation Of Human Induced Pluripotent Stem Cells, Thanh-Bình Dương
All Theses
Synthetic phenolic antioxidants (SPAs) are a class of compounds used to increase the durability of polymers as well as to increase the shelf-life of food, cosmetics, and other personal care items. Of these SPAs is 2,4-di-tert-butylphenol (2,4-DBP). 2,4-DBP is primarily used in polyethylene crosspolymer pipes, which are now used as a replacement for the traditional copper pipes for household water distribution. However, 2,4-DBP has been found to leach from these pipes into the water, enabling a mode of exposure to humans. 2,4-DBP has been detected in human urine, serum, but more importantly, maternal serum, placenta, and cord blood. …