Browsing by Subject "Microbiology"
Now showing items 1-20 of 25
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The bhuTUV and bhuO genes play vital roles in the ability of Brucella abortus to use heme as an iron source and are regulated in an iron-responsive manner by RirA and Irr
(East Carolina University, 2012)Brucella abortus is a Gram negative intracellular pathogen that causes the zoonotic disease brucellosis. Antibiotic treatment for brucellosis in humans is prolonged and sometimes followed by relapses. Currently, the United ... -
The Brucella abortus alkyl hydroperoxide reductase complex (AhpCD) is the primary scavenger of endogenous hydrogen peroxide and the ahpCD operon is regulated in response to endogenous hydrogen peroxide.
(East Carolina University, 2010)Brucella abortus is a facultative intracellular pathogen that causes abortion and infertility in cattle and relapsing fever in humans. These bacteria reside and replicate inside macrophages during infection, and the ability ... -
CRABS & ‘CROBES: THE TRIPARTITE RELATIONSHIP OF A HOST, PARASITE, AND THEIR RESPECTIVE MICROBIOMES
(East Carolina University, 8/5/2020)Growing evidence suggests that the associated microbiome of organisms (the holobiont) has been shaping the evolutionary pathways of macroorganisms for thousands of years, and that these tiny symbionts can influence species ... -
Determining the Chemical Structure of Brucebactin: The Sole Complex Siderophore Utilized by the Pathogenic Bacterium Brucella Abortus
(East Carolina University, 1/13/16)Brucellosis is a zoonotic bacterial disease that affects many around the world. There are over half a million new cases each year and prevalence rates in some areas of the world exceed 10 new cases per 100,000 in the ... -
Effects of Modified Vaccinia Virus Ankara Expressing Mesothelin and the Poxvirus Immunoregulatory A35R gene in the Treatment of Murine Pancreatic Cancer
(East Carolina University, 2012)Pancreatic cancer is the fourth leading cause of cancer-related deaths in the United States. Pancreatic tumors over-express the protein mesothelin, and therefore, it is used as a tumor target antigen for vaccine development. ... -
Effects Of Nutrient Availability And Disturbance On The Composition And Diversity Of Soil Microorganisms
(East Carolina University, 2015)Determining how factors such as disturbance and nutrient availability affect species diversity in a community has been a major goal of community ecology. The purpose of this study was to look at how species diversity and ... -
Elucidating "Consumption" : Using Fluorescent Steroid Probes to Understand Host Cholesterol Utilization by Mycobacterium spp.
(East Carolina University, 2014)Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB) disease, is the leading cause of death due to bacterial infection worldwide, claiming nearly two million lives each year. Often, the immune system ... -
Function and regulation of the polysaccharide utilization locus, don, in the gut symbiont bacteroides fragilis
(East Carolina University, 2014)Bacteroides fragilis is the most common anaerobe isolated from clinical infections and in this report we demonstrate a novel feature of the species that is critical to their success as an opportunistic pathogen. Among the ... -
The Fur-like regulator Mur controls the expression of the gene encoding the manganese transporter MntH in Brucella abortus 2308 in response to manganese availability
(East Carolina University, 2011)Brucella abortus is a Gram-negative, [alpha]-proteobacterium that causes bovine brucellosis, a prevalent zoonotic disease in many areas of the world. Brucella abortus is an intracellular pathogen that survives and ... -
Human T-cell Leukemia Virus Type 1 Basic Leucine Zipper Factor (HBZ) Interacts and Inhibits the Acetyltransferase Activity of Multiple Cellular Coactivator Families to Deregulate Transcription
(East Carolina University, 1/13/16)Of the 20 million individuals infected worldwide with the complex retrovirus, Human T-cell Leukemia Virus Type 1, 5% will develop an incurable and fatal form of leukemia known as adult T-cell leukemia (ATL). During the ... -
Investigating the Microbial Communities Associated with Aluminum Alloys 2024 and 7075
(East Carolina University, 2020-11-17)Aluminum (Al), one of the most versatile, cost-effective, and appealing metals for use in construction, has no known biological function. Al alloys in aquatic environments provide a surface for attachment and can be ... -
Investigations into the roles of bacteroides fragilis thioredoxins during the oxidative stress response
(East Carolina University, 2011)The Gram-negative Bacteroides fragilis is the most frequently isolated bacterium from anaerobic infections. Native to the human intestinal tract, it serves a symbiotic role breaking down complex polysaccharides and ... -
The iron response regulator Irr controls iron homoeostasis in Brucella
(East Carolina University, 2014)Members of the genus Brucella are small, Gram-negative intracellular bacterial pathogens that are capable of infecting a wide range of mammalian hosts including humans. Brucella primarily reside inside of host macrophages. ... -
Layered regulation of a pathway capable of altering quinolone production in Pseudomonas aeruginosa
(East Carolina University, 2014)Pseudomonas aeruginosa is a gram negative opportunistic pathogen which commonly infects hospitalized patients and those afflicted with cystic fibrosis. P. aeruginosa communicates intercellularly via a system of small ... -
Microbial Carbon Assimilation within the Walls of Deep-sea Hydrothermal Vent Chimneys
(East Carolina University, 2011)Carbon is one of the most abundant elements on Earth stored in a multitude of reservoirs and constantly cycled through various processes occurring on our planet. Although it represents only a small percentage of the total ... -
MICROBIAL DIVERSITY AND BIOGEOGRAPHY IN A SERPENTINITE-HOSTED ECOSYSTEM
(East Carolina University, 2010)The goal of this project was to characterize the taxonomic and functional diversity and document biogeographic patterns of microbial communities in an ecosystem influenced by active serpentinization. Serpentinization is a ... -
Molecular Epidemiology of MRSA Among Patients and Employees in a Surgical Intensive Care Unit
(East Carolina University, 2011)Methicillin-resistant Staphylococcus aureus (MRSA) is a pervasive drug resistant human pathogen and has become widespread in hospitals around the world. MRSA infections cause approximately 19,000 deaths among hospitalized ... -
Paul De Kruif: The Microbe Hunter and Author
(2009-08-31)Laupus Library History Collections & the Department of Bioethics & Interdisciplinary Studies sponsor the History of Medicine Presentations as an educational service for the East Carolina University community. The Library ... -
Physiological and Phylogenetic Studies of the Biogeography of Alkaliphilic Heterotrophic Bacteria from Serpentinizing Habitats
(East Carolina University, 2014)Serpentinization occurs when ultramafic rocks containing the mineral olivine react with water to produce highly reducing conditions, which are commonly coincident with high concentrations of hydrogen. Hydrogen provides ... -
Physiological Studies of Alkaliphilic Anaerobic Organotrophs in a Serpentinizing Subsurface Habitat
(East Carolina University, 2014)Microbial habitats in serpentinizing ultramafic rocks represent one of the largest, yet least understood portions of the biosphere, with potentially major consequences for global biogeochemical cycles. Serpentinization is ...