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Oral Biology and Oral Pathology Commons

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Full-Text Articles in Oral Biology and Oral Pathology

S. Gordonii-Produced Hydrogen Peroxide Modulates Mir-663a And Ccl20 Expression In Oral Epithelial Cells, Marshall Houston Maynard Jan 2021

S. Gordonii-Produced Hydrogen Peroxide Modulates Mir-663a And Ccl20 Expression In Oral Epithelial Cells, Marshall Houston Maynard

Theses and Dissertations--Medical Sciences

The mechanisms through which a persistent recognition of commensal bacteria by oral epithelial cells (OECs) mitigates an uncontrolled inflammatory response of the oral mucosa remain unknown. CCL20 secretion by OECs in response to pathogenic bacteria is regulated by S. gordonii (Sg)-induced miR-663a; nevertheless, the mechanisms involved in these Sg-modulated responses remain to be elucidated. Since Sg is a hydrogen peroxide (H2O2) producer, and H2O2 has been shown to stimulate miRNA expression, we hypothesized that H2O2 could be involved in Sg-induced miR663a and CCL20 responses. Expression of miR663a …


Contribution Of Probiotics Streptococcus Salivarius Strains K12 And M18 To Oral Health In Humans: A Review, Turner A. Stowik May 2016

Contribution Of Probiotics Streptococcus Salivarius Strains K12 And M18 To Oral Health In Humans: A Review, Turner A. Stowik

Honors Scholar Theses

The overgrowth and disequilibrium of pathogenic microorganism species both native and non-native to the oral cavity can manifest into a variety of different oral diseases, pathologies, and afflictions in humans, including dental caries, gingivitis, pharyngitis, halitosis, and oral candidiasis. Two bacterial strains with clinically-significant probiotic applications in curtailing the pathogenic bacterial growth involved in these conditions are Streptococcus salivarius strain K12 and Streptococcus salivarius strain M18. To summarize the most up-to-date in vitro, in vivo, and clinical research findings, administration of these S. salivarius strains typically in the form of probiotic lozenges results in colonization, reduction in inflammatory measures, …


Efficacy Of The De Novo-Derived Antimicrobial Peptide Wlbu2 Against Oral Bacteria, Karen F. Novak, William J. Diamond, Sreenatha S. Kirakodu, Rebecca Peyyala, Kimberly W. Anderson, Ronald C. Montelaro, Timothy A. Mietzner May 2007

Efficacy Of The De Novo-Derived Antimicrobial Peptide Wlbu2 Against Oral Bacteria, Karen F. Novak, William J. Diamond, Sreenatha S. Kirakodu, Rebecca Peyyala, Kimberly W. Anderson, Ronald C. Montelaro, Timothy A. Mietzner

Center for Oral Health Research Faculty Publications

The efficacy of a novel synthetic antimicrobial peptide (WLBU2) was evaluated against three oral microorganisms (grown planktonically): Streptococcus gordonii, Fusobacterium nucleatum, and Porphyromonas gingivalis. WLBU2 killed all three species, with F. nucleatum being the most susceptible. WLBU2 also reduced the bacterial burden of S. gordonii and F. nucleatum biofilms.