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Electronic Theses and Dissertations

Periodontitis

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Porphyromonas Gingivalis, Ethanol, And Chronic Diseases., Nicholas Alan Short May 2022

Porphyromonas Gingivalis, Ethanol, And Chronic Diseases., Nicholas Alan Short

Electronic Theses and Dissertations

This dissertation is an investigation into the relationships among Porphyromonas gingivalis, ethanol, and a series of chronic diseases, focusing primarily on atherosclerosis. It uses evolutionary theory to understand clinical parameters related to chronic disease biology. The initial research question was, "If people who drink a glass of wine each day have a lower risk for atherosclerosis, could one explanation involve antibacterial effects on pathogens associated with causing atherosclerosis, namely, Porphyromonas gingivalis?". This dissertation is divided into four chapters. Chapter One provides the foundational information pertinent to the dissertation. Chapter Two describes an in- vitro experiment aimed at understanding …


The Emerging Oral Pathogen, Filifactor Alocis, Disrupts Neutrophil Functions To Enhance Survival And Dysregulate Inflammation., Irina Miralda Molina May 2020

The Emerging Oral Pathogen, Filifactor Alocis, Disrupts Neutrophil Functions To Enhance Survival And Dysregulate Inflammation., Irina Miralda Molina

Electronic Theses and Dissertations

Periodontitis is an irreversible, chronic inflammatory disease where pathogenic microbial communities accumulate in the gingival crevice. Advances in culture-independent techniques have facilitated the identification of new bacterial species in periodontal lesions, such as the Gram-positive anaerobe, Filifactor alocis. Neutrophils are a major component of the innate host response, and the outcome of their interaction with F. alocis may be a determinant of oral health status. While neutrophil functions typically protect the host against periodontal disease, oral pathogens have adapted to evade or disarm neutrophil microbicidal functions while promoting mechanisms that drive inflammation, which also provides a source of nutrients …