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Pathogenic Microbiology Commons

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Full-Text Articles in Pathogenic Microbiology

Determining The Antimicrobial Activity And Permeabilizing Effects Of Polyunsaturated Fatty Acids And Piscidins On Vibrio Parahaemolyticus And Vibrio Vulnificus, Christina Harris May 2024

Determining The Antimicrobial Activity And Permeabilizing Effects Of Polyunsaturated Fatty Acids And Piscidins On Vibrio Parahaemolyticus And Vibrio Vulnificus, Christina Harris

Honors Theses

Antimicrobial peptides (AMPs) are found in all organisms and have gained attention for their effectiveness against a variety of pathogens. Piscidins are AMPs that were discovered in mast cells of vertebrates, mostly within marine animals, and are an important part of the innate immune system due to their potent antimicrobial properties. Piscidin 1 (P1) and piscidin 3 (P3) are found within sea bass and have different antimicrobial activities. P1 exhibits strong membrane disruptive properties, while P3 goes through the membrane to the targeted DNA. These piscidins can experience metalation with copper (Cu2+) which enhances their antimicrobial activity in vitro (P1-Cu2+ …


The Effect Of Different Types Of Plastic And Rubbers Often Found In Healthcare Facilities On The Survival Of Potentially Pathogenic Bacteria, Ashely George May 2023

The Effect Of Different Types Of Plastic And Rubbers Often Found In Healthcare Facilities On The Survival Of Potentially Pathogenic Bacteria, Ashely George

Honors Theses

This study focused on the survival of different species of bacteria on different types of plastics and rubbers found in healthcare facilities. The gram-positive coccus Staphylococcus aureus and the gram negative bacillus Escherichia coli, known to have importance as potential pathogens in healthcare facilities, were tested on two types of plastic (polyurethane and Polyvinyl Chloride (PVC)) and two types of rubbers (latex and nitrile) typically found on reusable healthcare surfaces. Known quantities of bacteria were aseptically placed on disinfected plastic surfaces in triplicate, air-dried, and then incubated at room temperature for 30 minutes, 20 hours, and 40 hours. After incubation, …


The Role Of A-Layer In Polyunsaturated Fatty Acid (Pufa)-Mediated Effects On Aeromonas Salmonicida Subsp. Salmonicida, Allen Lin Dec 2021

The Role Of A-Layer In Polyunsaturated Fatty Acid (Pufa)-Mediated Effects On Aeromonas Salmonicida Subsp. Salmonicida, Allen Lin

Honors Theses

Aeromonas salmonicida subsp. salmonicida is a Gram-negative bacterium that infects salmonids and non-salmonids worldwide leading to an infection known as furunculosis, which is characterized by skin lesions and hemorrhages of the fish epidermis. This infection is carried out by a A+ (virulent strain) of A. salmonicida containing an important virulent factor known as the A-layer, which is a 2D paracrystalline structure that binds to the basement membrane and functions to promote adherence to host membranes and resistance to host defense. The purpose of this study was to examine the ability of the A+ A. salmonicida to incorporate exogenous fatty acids …


A Metabolomics-Based Approach To The Screening Of Endometrial Cancer: Development Of A Gas Chromatography-Ion Trap Mass Spectrometry-Based Method, Allycia Lee May 2021

A Metabolomics-Based Approach To The Screening Of Endometrial Cancer: Development Of A Gas Chromatography-Ion Trap Mass Spectrometry-Based Method, Allycia Lee

Honors Theses

Endometrial Cancer (EC) is the most common malignant tumor of the female reproductive tract. Currently there are no methods for effectively screening EC, but one method that is thought to be useful in screening EC is metabolomics. Metabolomics involves the analysis of metabolites which are low molecular weight inorganic and organic chemicals that are substrates, intermediates, and by-products of enzyme-mediated biochemical reactions in the cell. Previous research shows that the metabolic signature of EC patients are discernable from those of healthy patients. To aid in the development of an effective screening method for EC, blood serum, urine, and saliva samples …